2019 - clri.org

File No. 28(01)/2019/Pur Date: 28/06/2019

Revised Technical Specifications & clarifications issued after the Pre-Bid Conference Dated 18.06.2019 for Supply, Erection, Installation, Commissioning, Operation and Maintenance of Co-Digestion plant for Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels for Biogas Generation from Hotel Industry on Turnkey Basis Capacity of the Plant – 500 kg/day ( mixed waste)

Revised Technical Specification for Supply, Erection, Installation, Commissioning,

Operation and Maintenance of Co-Digestion plant for Organic Fraction of Leftover Food

Waste, Vegetable Peels and Fruit Peels for Biogas Generation from Hotel Industry on

Turnkey Basis

ELIGIBILITY CONDITIONS, SPECIFICATIONS AND ALLIED TECHNICAL DETAILS

4.1 Eligibility Conditions for Supply, Erection, Installation and Commissioning, Operation and

Maintenance of Co-Digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and

Fruit Peels for Biogas Generation from Hotel Industry on Turnkey Basis

Minimum Eligibility Criteria for Supply, Erection, Installation and Commissioning, Operation

and Maintenance of Co-Digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels

and Fruit Peels for Biogas Generation from Hotel Industry on Turnkey Basis.

The bidder should have successfully designed and installed/ implemented biogas plants

for various kinds of organic fraction of sewage sludge /Industrial Solid Waste/ MSW /

Food Wastes/combination of these wastes. Documentary evidence for atleast plant of

capacity 400 kg/day or atleast 2 Nos of plant of capacity 300 kg/day should be

submitted with the Technical Bid, failing which the bid would be considered as

unresponsive or not meeting the eligibility criteria.

(Note: Firms not meeting the minimum eligibility conditions will not be considered for

technical evaluation.)

4.1.2 General criteria:-

1. Vendors not meeting the minimum eligibility criteria will not be considered for technical

evaluation.

2. List of installations of similar work with contact details should be provided. (Annexure IX)

3. The bidder shall furnish documentary evidence to demonstrate that the bidder satisfies

the bidders’ eligibility criteria.

4. Bidders shall invariably furnish documentary evidence (client’s certificate) in support of

the satisfactory operation of the similar plants executed by him.

5. Spares and service support for the instrument for the period of 7 years from the date of

installation.

6. Details of make, model, service support for the outsourced items/ supporting accessories

(Technical details in Technical bid)

7. Details of Service Centre and information on service support facilities that would be

provided after the warranty period (in the Service Support Form).

8. That adequate and specialized expertise is already available or will be made available

following the execution of the contract in the Purchaser’s country, to ensure that the

support services are responsive and adequate as per ‘Instructions To Bidders 1.13.2(c).

Specifications for Implementation of co-digestion plant for Leftover Food Wastes, Fruit and

Vegetable Peel; Capacity of Plant: 500 kg/day

Supply, Erection, Installation, Commissioning, Operation and Maintenance of Co-Digestion

plant for Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels for Biogas

Generation has to be implemented with Commissioning and stabilization for a period of 3

months and O & M for a period of 3 months.

Water supply and power requirements

Water supply and power will be supplied to the contractor by the Beneficiary. Accordingly the

contractor has to make arrangements for taping water and electricity during construction;

commission and stabilization period and O &M period; till handover of the plant to the

“Purchaser”.

Main Units to be provided are listed below:

Sl.

No

Unit Size /capacity MOC

1. Feed Preparation

tank (with

removable cover)

1.5mx1.5x1.2m

(LD) + 0.3 m FB

MS ( minimum 6 mm thickness with minimum FRP coating of 1 mm thickness)

MS should satisfy IS 2602 code

2. Anaerobic Digester

with Scum breaking

mechanism

3.6 Diameter x

3.6m LD +0.6

Gas space


MS should satisfy IS 2602 code.

Digester should be provided over Suitable concrete foundation

3. Gas Holder – Fully

enclosed

For a gas balloon

of 50m3 Capacity

Epoxy coated MS frame with

Galvalume sheeting of 0.45 -

0.5 mm thickness

must be provided over

Suitable concrete foundation.

Colour Coating of the Sheet:

Environmental Green

4. Digestate Collection

tank (with

removable cover)

1mx1mx1.2m

(LD) + 0.3m(FB)


MS should satisfy IS 2602 code

5. Supernatant

Collection tank (with

1m x 1m x 1.2m MS ( minimum 6 mm

thickness with minimum

Sl.

No

Unit Size /capacity MOC

removable cover) (LD)+0.3 m (FB) FRP coating of 1 mm

thickness)

MS should satisfy IS 2602

code

6. Gas Flare Platform To suit the gas

flare.

(Height: 6m

above GL)

Mild Steel platform with

hand rails, safety and access

arrangements, suitable

support structure and

concrete foundation should

be provided.

7. Pump Pads To suit the size of

the pumps

Suitable concrete platform

has to be provided.

Note:

For the above units, the bidder has to provide suitable foundation based on Self weight which includes Dead Load+ Live Load and weight due to loading of the waste every day. The foundation has to be designed based on Safe bearing capacity of the existing soil. For that, the contractor has to conduct soil testing and based on soil test report the foundation has to be designed. Contractor has to provide Soil test reports and design calculations to purchaser for their approval. Once after getting approval from purchaser only, the work has to be executed at site. The minimum thickness of the base above GL shall be of 0.3 m in order to avoid submergence of the units in rain water.

The units fabricated in MS with FRP coating shall be of corrosion resistance, leak proof, high strength and stable with changing weather conditions. Also these units shall be provided with suitable inlet, outlet and recirculation arrangement with suitable fixtures and piping arrangement.

All the MS Units / Structures ( External) shall be painted with 2 coats over a primer

with approved colour and quality

All the Civil units shall be coated with 2 coats of cement paint over a coat of primer

with approved colour and quality.

Overall List of Mechanical and Instrumentation Items

Sl.

No.

Mechanical Items Type Capacity

Head Nos.

1. Sorting table Sorting

table shall

be of MS

with Epoxy

and top

surface

shall be of

SS

1

2. Shredder/ Mincer

(To mince 500 kg/day)

250 kg/hr

minimum

capacity

1No

3. Agitator- Feed

Preparation Tank

Turbine - - 1 No

4. Agitator- Digestate

Collection Tank

Turbine - - 1 No

5. To pump feed from

Feed Preparation tank

to Digester

Submersible

Pumps

2 m3/hr

(minimum

capacity)

8 m 2

(1W+ 1S)

6. Digestate Withdrawal pumps

Centrifugal

Pumps

1m3/hr

( minimum

capacity)

5 m 2

(1W +

1S)

7. Chamber Filter press

with filter feed pumps

- - - 1

Sl.

No.

Mechanical Items Type Capacity

Head Nos.

and other accessories

8. Gas balloon for

collection of biogas

- 50 m3 - 1

9. Gas burners with

necessary piping for

connection to the

Kitchen for utilization of

biogas

- - - 1 Lot

10. Biogas Flaring System

with safety

arrangements

- - - 1

11. Pressure Gauges - - - 1 Lot

12. Pressure Relief Valves - - - 1 Lot

13. Gas Flow Meter 15 to 25

liters/min

1 Nos

Note : W – Working, S – Stand-by

4.2.1 Shredder/ Mincer

The tenderer has to quote shredder/mincer for size reduction of food waste including vegetables

and fruit peels with high fiber content, Banana peduncles, bones etc. generated from hostels/

hotels/ cafeteria/food courts. The Shredded waste has to be conveyed to feed preparation tank.

Accordingly the contractor has to provide suitable chute/ conveyance provision. The quantity of

waste to be shredded is 500 kg/day and particle size after shredding shall be minimum of 5 mm.

MOC shall be of:

Cutter Blades : Tool Hardened Steel

Impeller : Tool Hardened Steel

Teeth Ring : Tool Hardened Steel

4.2.2 Agitators

4.2.2.1 Technical Data Sheet for Agitators

Description Feed Preparation

Tank

Digestate

Collection tank

Tank Dia/ Size (m) 1.5 x 1.5 1.0 x 1.0

Tank Height (m) 1.5 1.5

Shaft Length-from Tank Top 1.2 1.2

Bottom Clearance (m) 0.3 0.3

Shaft Dia (mm) 40 40

Impeller Dia (mm) 450 to 500 mm 450 to 500 mm

Propeller Turbine

MOC Shaft, Propeller SS304 SS304

Agitator RPM(+/- 10%) 30- 50 30-50

Gear Box Type Worm or Helical

Motor HP 1.0 1.0

Motor RPM 1440 1440

No. required 1 1

Static Load 85 to 100 85 to 100

Dynamic Load 120 to 150 120 to 150

4.2.3 Pumps

Technical Data Sheets for Submersible Pumps

Item Specification

Purpose / Location To pump feed from Feed Preparation

tank to Digester

pH of the fluid to be handled 6 to 8

Temp deg C Ambient

Sp. Gr (kg/m3) 1.002

Total Head (m) maximum 8

Cap (m3/Hr) 1

NPSH (m) Required 8

BKW Water 0.32

Speed (rpm) 1450

Suc x Dis (inches) 2 to 2.5 inches * 2 to 2.5 inches

(Flanged)

MATERIALS; Casing/Cover CI / CI

Impeller / Type SS 304 / semi open

Shaft SS 304

Bearings Deep groove Grease

Driver 1.0 / 1450

Technical Data Sheets for Centrifugal Pumps

Item Specification

Location to be Provided Digestate Withdrawal Pumps

pH of the fluid to be handled

6 to 8

Sp. Gr (kg/m3) 1.002

Total Head (m) maximum 8

Cap (m3/Hr) 1

BKW Water 0.12

Speed (rpm) 1450

Suc x Dis (inches) 2” X 2”(Threaded)

MATERIALS; Casing/Cover CI / CI

Impeller / Type SS 304 / semi open

Shaft SS 304

Bearings Deep groove Grease

1.0 / 1450

4.2.4 Gas Holder

Balloon type gas holder with safety enclosure shall be provided for a capacity of 50 m3 needs to be

installed with safety arrangements and automatic release valve and alarm warning when 100 %

capacity of the gas holder is reached.

Biogas collection and flare system

Anaerobic digester after digestion of mixture of waste will generate methane rich biogas. The

expected gas composition would be 65% - 70 % of CH4 and balance 30% - 35 % consisting of CO2

and N2, with traces of H2S and NH3. The biogas production would be around 15- 20 cum per day.

The biogas produced from the digester will be collected in the gas holder connected through the

moisture trap. For removal of CO2 and H2 S biogas purification system has to be provided. Bidder

can use iron pellet and Lime soda pellets to ensure scrubbing of both H2S and CO2 from biogas.

When the gas level in the gas balloon reaches about 80 % the valve in the gas line to flare will be

opened. One pressure release valve shall be provided at the top of the balloon, which will open

out when the levels reaches 100 % value. One high-level switch shall be provided at 95% to give

an audible alarm signal in the control room.

The main units in biogas collection and flaring shall consist of

1. Flare Burner Assembly

2. Flame Arrester

3. Control Panel (Weather Proof)

4. Ignition System

5. Control Valve Assly

6. Riser Pipe

7. Moisture Separator

8. Structure Assembly

9. Thermocouple (K Type)

10. TC Cable & HV Cable;

11. Biogas balloon 50m3 with biogas appropriate purification system

12 Gas Compressor (Inbuilt) receiver tank of capacity 150 to 200 liters; Flow rate: 12 to 15

cfm; HP : 3 Pressure rating upto 7 to 10 bar ; Make : ELGI/ ANESTIWATA/ LEINTZ

Technical data sheet for biogas flaring system is given below:

Sl.No. Category Parameter Unit

1. Gas flaring system

Quantity 1

Type Aspirated type open flare

Capacity 15–20 Cum/day

Flow rate 15-20 Cum/day

Working pressure 100-150 mm of wc

Height 6 Meters


Location As per layout

Duty To flare produced biogas

2. MOC of various parts

Flare burner assembly. SS 304

Pilot burner SS 304

Flame arrestor SS 304

Main gas line pipe SS 304

Control valve assembly SS 304

Control panel Weather proof

Ignition system

Gas line SS 304

Moisture separator SS 304

Derrick structure MS with epoxy coating

3 Flare burner

Type Aspirated type

Capacity 15-20 cum/day

Flow rate 15-20 cum/day

Working pressure 100-150 mm of wc

Location Flaring station – outdoor

Duty To flare the gas

4 Flare burner material of


construction

Flare burner SS 304

Flare pipe SS 304

Burner SS 304

Wind shield SS 304

Mounting flange SS 304

TC mounting SS 304

Pilot burner housing SS 304

5 Pilot burner & accessories

Quantity . 1 No

Type Premix with aspirator or Spark

Location Integrated with flare burner

Duty To provide the pilot flame for main

burner

MOC SS 304

6 Flame arrestor

Quantity 2 Nos

Type Inline flanged end

Capacity 15-20 cum/day

Size 25 nb


Duty To prevent flame flash back


Material to be handled Biogas

7 Material of construction

Body SS 304

Flame arrestor element SS 304

Gaskets EPDM & Teflon

End connection Flanged end

Nut & bolts SS 304

8 Ignition system ( consist of)

Ignition electrode Ceramic electrode

Hv transformer Brahma

Hv cable 10 kVA

Capacity 2 x 12 kVA

Hv transformer box Flame proof structure mounted

Location On structure

9 Control valve assembly

Ball valve Standard 1” Nb

Control valve (solenoid valve) Standard 1” Nb

Pressure gauge 0- 500 mm wc

Pilot burner gas line Standard 1” Nb

Drain valve Standard 4” Nb manual ball valve

10 Moisture separator


Type Cylindrical

Duty To remove moisture from the gas

Size 25nb

Pressure side connection Flanged


Drain type Manual

11 Material of construction

Body SS 304

Legs MS with epoxy coating

Gasket EPDM

Drain valve Standard ½” Nb manual ball valve

Flanges SS 304

Drain ball valve SS 304

12 Derrick structure

Height 6 Min. Meters

MOC MS

Painting Epoxy painting to all MS parts

Specifications for Biogas Balloon

Base Material shall be of Polyamide 1670 dtx; Weight in g/m2 1350 ; Breaking Strength Warp

500 kg min; 50 mm X 200mm; Weft 460 kg min; Peel off Adhesion; Warp 4.5 kg min;

Color; Outer- Black/ Grey Coating; Outer Coating- Hypalon; UV Resistantant Inside Coating-

Neoprene; Working pressure- 300 mm wc; Inlet & outlet nozzle and D ring Hook arrangement.

Technical specifications for Biogas Balloon is given below:

Balloon Capacity 50 m3

MOC Rubber coated (Outside Hypalon & Inside Neoprene)

Base Material Polyamide 1670 dtx

Weight in gms/m2 1350 to 1500

Breaking Strength Warp 500 kg min

Peel off Adhesion Warp 4.5 kg min

Coating Outer Coating- Hypalon, UV Resistant Inside Coating-

Neoprene

Working pressure 100 to 300 mm Water Column

Inlet & outlet nozzle To suit field requirement at the time of installation

Tying Arrangement D ring Hook arrangement

4.3 Filter Press

One filter press is to be supplied and the quantity of digestate to be filtered is 0.20 to 0.25 m3/day

of wet sludge. The equipment shall include filter press feed pump, filter press frame, hydraulic

closing system, filtrate tray, drip tray, polypropylene filter plates, filter cloth, manual plate

shifting device for cake discharging, light curtain and such other fittings or appurtenances

necessary for a complete operating installation. The digestate solids concentration may be 5 to 10

%. pH will range from 7 - 11. No provision has been made for chemical dosing to the sludge to be

dewatered by the filter press. The solid concentration of the cake shall be at least 28 %. The

percent recovery of suspended solids shall be at least 85 %. The total digestate volume has to be

dewatered in 8 hours shift time. Hence adequate numbers of filter plates has to be provided.

Technical specifications for Filter press is given below:

Basic Parameters

Flow rate 0.20 to 0.25 mᶟ/day

Number of filtration batches 1 in 8 hrs

No. of Filter Press 1

Solids consistency (inlet) 5 to 10 %

Expected Solids consistency (outlet) 35 to 30 %

Filter Press – skid Mounted

Type Sliding

Plate Size 470 mm x 470 mm

No. of Plates 5 Nos

No. of Chambers 4 Nos

Filtration Area 1.23 m² Approx

Chamber volume 25 Litres Approx

Operating pressure 7 bar

Plate closing Capstan Closing System

Plates Details

Size 470 mm x 470 mm

Type Recessed

Material Polypropylene

Thickness 57 ± 2 mm

Cake thickness 32 ± 2 mm

Feed Central

Discharge Open

Operating pressure 7 Bar

Plate shifting Manual

MOC of the structure MS, Fabricated & machined

Feed Pump Details

Type Progressive cavity pump

Capacity 1 cum /hr

Head 7 to 8 Bar

Drive Belt Driven or Direct Driven

Filter Cloth 1 Set

All fasteners and anchor bolts shall be SS304. In order to safeguard against overloads in the filter

press and / or the filter feed pump, adequate provisions shall also be made to manually override

the controls.

4.4 PIPING AND VALVES – SPECIFICATIONS

All pipes shall be of HDPE and Valves shall be of PP. All bots and nuts shall be SS 304. All pipes

and valves shall be as per B1 standards. For successful functioning of the Biogas plant, If

additional pipings are required in any locations, the same shall be provided by the contractor

without any additional financial implications.

4.4.1 RECOMMENDATIONS FOR PIPING

1) Make

(1) HDPE: Hasti / Manikya/ Reliance

(2) PVC : Finolex /ASTRAL/ ASHIRVAD/ SUPREME

2) UPVC or CPVC pipes and shall comply with ANSI class standards which can withstand

the pressure in the range of 12 kg/cm2 to 15 kg/cm2 pressure

3) Type - As per IS specification for HDPE pipes for Industrial effluent

4) Arrangements Piping work shall be carried out as per approved drawing.

5) Pressure - for all sizes of pipes : 6 Kgf/ cm2

6) Collar & Flanges - Collar & flanges shall be provided for every 6 meter length and for every Tee

and bend.

Stator Nitrile

Rotor Alloy Steel

Other Accessories required for operation of

Filter Press with necessary piping

arrangement

7) Testing of pressure

Pipes 1.5 times the rated pressure measured for one hour

( DIN 4 279)

Accessories Molded Tee, Bends, Elbows only should be used and not fabricated at site.

Lip formation Lip formation during HDPE welding shall be removed properly to avoid

build-up of scale. The collar ID and pipe ID should be same to avoid

restriction of flow at the flange joints, thereby avoiding sludge accumulation

at joints.

4.4.2 RECOMMENDATIONS FOR VALVES

(i) Make AUDCO/KSB/ CRI/AMCO/LEHREY/CALIBER

(ii) Type CI Gate Valve, Non raising spindle & NRV etc.,

(iii) Size Suitable size for Underflow pipe, recirculation line

(iv) Bolt, Nut & Washers SS All pulley and coupling guards shall be in FRP.

4.5 Electrical Works

The work involves complete electrification to demonstration plant including provision of power

feeding panels, distribution boards, UG cables, motor starters, etc., with required cabling, wiring

and connections. The scope includes obtaining mandatory approval from concerned authorities

including payment of required fees.

The plant shall be provided with power / motor control panel for feeding Agitators, Feed pumps,

Digestate withdrawal pumps, Sludge/feed preparation pumps, Filter press loads, Supernatant

withdrawal pumps, shredder/ mincer, small power outlets etc. This panel shall consist of all

required switches, fuses, motor starters, meters, push buttons, bus bar and cable chambers with

all required accessories.

The power supply to the plant shall be tapped from existing 3 phase, 415 V, 50 Hz power source

through an adequate size armoured underground cable. All the loads shall also be connected

through either armoured underground cable or with conduit wiring as per the plant

requirement.

The plant shall be provided with required power sockets, motor starters, push button stations,

suitable earthing system, etc. Any other item which is inadvertently omitted shall also form a

part in the scope of work

The work shall be handled by a qualified and competent electrical contractor.

4.5.1 Electrical equipment

The following constitutes a set of approved makes of equipment. The bidder shall be eligible to

propose alternative equipment provided the burden of proof of equivalency is taken upon by the

bidder. All the same, the employer reserves the right to specify and insist on his choice of makes

from a minimum of three mandatory optional makes which the bidder shall offer for each of

equipment or any one of the makes mentioned below.

Recommended Manufacturers List

DETAILS MANUFACTURER

Motors BB/ Kirloskar / Jyoti / ABB / Crompton Greaves

Cables Asian (RPG) / Incab / Omega / Torrent / Fort Gloster / Universal / Finolex/ Tropodur(CCI)/ ORBIT/POLYCAB

Lighting Fixtures Philips / Crompton Greaves/ Bajaj

Ammeter , Voltmeter, KWhr meter

Automatic Electric / Universal Electric / MECO Instruments Pvt. Ltd. / L&T/ ABB/SCHNEIDER

Relays English Electric / Jyoti / Universal Electric Ltd., / Hindustran Brown Bowery / MEI/ L&T/ ABB/SCHNEIDER

SFU / FSU Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

HRC Fuses (Power & Control) Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

MCB Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

OL / relays L & T / Siemens/ BCH/ Alstom

Terminal Elmex / Oesser

PBS with actuator & Elements L & T / Siemens / BCH

Local start / stop PB stn Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

Indication Lamp Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

DETAILS MANUFACTURER

Selector / Control Switches Alstom / L&T / Siemens / Standard/Contro& Switch gear/ ABB/SCHNEIDER

LT Bus duct KLK / Star Drive / Eltech

PT & CT KAPPA / AEP

4.6 RECOMMENDED MANUFACTURERS/ SUPPLIERS LIST FOR OTHER UNITS

Sl. No. Equipment RECOMMENDED MAKE

1. Agitators Remi/ SHINE

2. Pumps Kirloskar/KSB/ Grandfos/ Crompton

Greaves/CRI

3. Filter Press Hydropress Industries/Andriz

4. Biogas Flaring

System

Super Combustion Technologies/ Ashish Engineering Works, Pune/ Petroman Marketing (d) Pvt. LTDL, New Delhi

Important Information:

Makes other than these listed above too are acceptable, provided the bidder encloses reference of successful installations of similar application in not less than three cases.

The successful tenderer should submit detailed design calculations, GA drawings for each

unit, specifications and data sheets of each of mechanical, instrumentation and electrical

items, hydraulic flow diagram, piping layout, Plant layout, P & I diagram for the approval

before implementation. The purchaser will scrutinize and approve if they are suitable

otherwise insist for modification and resubmission. For civil units the structural drawings

with detailed design calculations have to be provided for approval. Only after the

approval, the successful tenderer should carry out the works. The contractor is responsible

for the structural stability of all the units mentioned in the tender document. In addition to

the items mentioned in the tender document, any additional arrangements required for

the successful implementation and O & M of the plant, the contractor has to provide those

items/ services without any further financial implications.

Note:

Turnkey and Two bid system will be followed.

After Supply, Erection , Installation and testing of the plant, the bidder has to carry

Commissioning and Stabilization activities for a period of 3 months and Operation and

maintenance of the plant for a period of 3 months

The technical specifications and data sheets all units shall be submitted with the technical

bid

List of critical spares such as gaskets shall be provided by the bidder

Minimum One year warranty shall be provided for all the equipment in the plant

Any item which is necessary but inadvertently omitted shall be included at any stage of

work within the total quoted tender cost. Hence, the tendered price shall be deemed to

include all items which are mandatorily required for the comprehensive physical and

functional completion of the offered items in all respects to meet the scope of work as

mentioned in this tender document.

The bidders are requested to visit the site to take care of the site specific requirements.

Power and water supply will be provided by beneficiary during Supply, Erection,

Installation of the plant.

Proper labeling of all tanks and equipment with name, dimension and other details should

be done by the contractor.

Contractor shall provide a color display board (A1 Size) indicating the features of the plant

and details of stake holders etc. The content shall be finalized in consultation with the

technical agency (CLRI).

Training of beneficiary personnel to be provided by the contractor

Operating manual of the plant including do’s and Don’ts for the operation of the plant to

be provided by the contractor

4.7 Scope of Supply

Supply, Erection, Installation and Commissioning, Operation and Maintenance of Co-Digestion plant for the Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels for Biogas Generation from Hotel Industry on Turnkey Basis

4.8 Inspection & Tests

4.8.1 General

1. The Supplier shall at its own expense and at no cost to the Purchaser carry out all such tests and/or inspections of the Goods and Related Services as are specified here.

2. The inspections and tests may be conducted on the premises of the Supplier or its subcontractor(s), at the point of delivery and/or at the Goods final destination.

3. Whenever the Supplier is ready to carry out any such test and inspection, it shall give a reasonable advance notice, including the place and time, to the Purchaser. The Supplier shall obtain from any relevant third party or manufacturer any necessary permission or consent to enable the Purchaser or its designated representative to attend the test and/or inspection.

4. Should any inspected or tested Goods fail to conform to the specifications, the Purchaser may reject the goods and the Supplier shall either replace the rejected Goods or make alterations necessary to meet specification requirements free of cost to the Purchaser.

5. The Purchaser's right to inspect, test and, where necessary, reject the Goods after the Goods' arrival at final destination shall in no way be limited or waived by reason of the Goods having previously been inspected, tested and passed by the Purchaser or its representative prior to the Goods shipment.

6. The Supplier shall provide the Purchaser with a report of the results of any such test and/or inspection.

7. With a view to ensure that claims on insurance companies, if any, are lodged in time, the bidders and /or the Indian agent, if any, shall be responsible for follow up with their principals for ascertaining the dispatch details and informing the same to the Purchaser and he shall also liaise with the Purchaser to ascertain the arrival of the consignment after customs clearance so that immediately thereafter in his presence the consignment could be opened and the insurance claim be lodged, if required, without any loss of time. Any

delay on the part of the bidder/ Indian Agent would be viewed seriously and he shall be directly responsible for any loss sustained by the purchaser on the event of the delay.

8. Before the goods and equipment’s are taken over by the Purchaser, the Supplier shall supply operation and maintenance Manuals together with Drawings of the goods and equipment’s built. These shall be in such details as will enable the Purchase to operate, maintain, adjust and repair all parts of the works as stated in the specifications.

9. The Manuals and Drawings shall be in the ruling language (English) and in such form and numbers as stated in the Contract.

10. Unless and otherwise agreed, the goods and equipment shall not be considered to be completed for the purposes of taking over until such Manuals and Drawing have been supplied to the Purchaser.

11. On successful completion of acceptability test, receipt of deliverables, etc., and after the Purchaser is satisfied with the working of the equipment, the acceptance certificate signed by the Supplier and the representative of the Purchaser will be issued. The date on which such certificate is signed shall be deemed to be the date of successful commissioning of the equipment.

ACCEPTANCE TERMS

12. Specifications should be strictly adhered to without compromise. At the time of supply, all the parts supplied should be the latest one i.e. should there be a new and improved version of the part(s) developed after the quote was furnished the improved versions should only be supplied and without any additional cost to the buyer. Parts that have become obsolete in the rest of the world (USA, Europe, Japan) should not be supplied here. Proper documents should be furnished to support this.

13. A simple step-by-step operating procedure (max 2 pages) which will be kept near the equipment indicating the precautions for eg. Safe pressures, dos and don’ts for safe and correct use of the entire equipment including software should be provided to help extend the life of the system.

14. With respect to the columns, specific maintenance and handling procedures including during operation as well as idling periods should be provided.

15. Demonstration of the equipment should be done at least for three standard proteins at the extreme ranges and one intermediate (flow rates)

16. The service manual to be given.

4.8.2 Pre-dispatch Inspection by CLRI

Applicable at factory premises

4.8.3 Manufacturer’s Inspection Certificate

After the goods are manufactured and assembled, inspection and testing of the goods shall be carried out at the supplier’s plant by the supplier, prior to shipment to check whether the goods are in conformity with the technical specifications. Manufacturer’s test certificate with data sheet shall be issued to this effect and submitted along with the delivery documents. The purchaser reserves the options to be present at the supplier’s premises during such inspection and testing.

4.8.4 Third Party Inspection

Not Applicable

4.8.5 Acceptance Test

The acceptance test will be conducted by the Purchaser, their consultant or other such person nominated by the Purchaser at its option after the equipment is installed at Purchaser’s site in the presence of supplier’s representatives. The acceptance will involve trouble free operation. There shall not be any additional charges for carrying out acceptance test. No malfunction, partial or complete failure of any part of the equipment is expected to occur.

The Supplier shall maintain necessary log in respect of result of the test to establish to the entire satisfaction of the Purchaser, the successful completion of the test specified. In the event of the ordered item failing to pass the acceptance test, a period not exceeding two weeks will be given to rectify the defects and clear the acceptance test, failing which, the Purchaser reserve the right to get the equipment replaced by the Supplier at no extra cost to the Purchaser.

Successful conduct and conclusion of the acceptance test for the installed goods and equipment’s shall also be the responsibility and at the cost of the Supplier.

4.9 TRIAL RUNS, COMMISSIONING, STABILISATION, OPERATION AND MAINTENANCE

GENERAL

After successful completion of works, pre-commissioning protocol, test run, trial runs shall be

done by the turnkey contractor. After satisfactory commissioning and stabilization for a period of

three months, the contractor shall operate and maintain the pilot scale biogas plant for co-

digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels for a

period of three months with the biogas generation with the wastes specified in the tender

document and all the parameters required for the final utilization/disposal of digestate.

Training of personnel of the beneficiary for the proper operation and maintenance of the pilot

scale biogas plant for co-digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels

and Fruit Peels shall be imparted by the contractor during this period of three months from the

successful commissioning of the plant.

Pre-commissioning activities

Before initiating the trial run and commissioning activities, the contractor shall satisfy the

purchaser that all activities related to the implementation of the pilot scale biogas plant for co-

digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels has been

satisfactorily completed by the contractor as stated in this tender. A written communication to

this effect shall be issued to the contractor by the Employer to commission the operation and

maintenance of the pilot scale biogas plant for co-digestion of Organic Fraction of Leftover Food

Waste, Vegetable Peels and Fruit Peels.

Before all installations are put into operation all construction litter shall be collected at the site

and shall be removed from the site and disposed safely.

Recruitment of all staff of the contractor required for the commissioning, stabilization and

training shall be completed at least one month prior to the commissioning of the pilot scale

biogas plant for co-digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and

Fruit Peels. The “purchaser” reserves the right to alter the composition of the team any time

during the project period.

The contractor shall make all consumables as required for Pilot scale biogas plant ready prior to

the start up.

The contractor shall create a separate test protocol for each construction and each equipment,

including the tests of the electrical equipment, instrumentation and process control. The test

protocol will take into account the coherence with other process equipment. The test results of

the each item shall be described in a protocol and only accepted when approved by the

“purchaser”

The Contractor shall prepare a detailed commissioning protocol for operation of the pilot scale

biogas plant for co-digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and

Fruit Peels as per the specific terms & conditions. This protocol will be deemed as accepted

only when approved by the “ purchaser”.

A written approval to this effect is mandatory for starting the pilot scale biogas plant for co-

digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels

Trial run of pilot scale biogas plant for co-digestion of Organic Fraction of Leftover Food Waste,

Vegetable Peels and Fruit Peels

The trial run involves the following stages:

Leak testing of all Units

Checking of all electrical installations.

Wet running of all electro-mechanical equipment and hydro testing of pipes.

Arranging seed for start-up of the pilot scale biogas plant for co-digestion of Organic

Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels

The Contractor on his own resources will carry out all requirements for the trial run

In succession the following installations shall be tested with clear water:

4.9.1 COMMISSIONING AND STABLIZATION

First stage – Start-up of Pilot Scale Plant

Procurement of Seed Sludge and its characterization before feeding into the Anaerobic

Digester

Procurement of the Waste from the Beneficiary

Segregation of wastes

Size reduction of waste

Preparation of feed in the specified proportion by the purchaser

Pumping of feed into the Digester

Operation of Digester with biogas Collection and Flaring System and connecting for

cooking purpose in the kitchen

Frequent withdrawal of digestate and dewatering of the digestate

Drying of Dewatered digestate

Sieving and packing of Dried Digestate

Transportation and disposal of dewatered digestate to the place designated by the

Employer or beneficiary/ purchaser or its utilization.

Regular testing and treatability studies of biogas plant using the laboratory facilities to be

provided at various stages of treatment

The commissioning & stabilization of pilot scale biogas plant shall not take more than three

months’ time.

O & M OF THE PILOT SCALE BIOGAS PLANT

After successful stabilization, Contractor’s personnel shall operate the pilot scale biogas plant for

co-digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels using

his own resources for a minimum period of 3 months, in which the performance of the pilot

scale biogas plant should be satisfactory in all respects, including but not limited to, achieving

the performance in terms of biogas generation and meeting the quality requirements of

digestate.

It is necessary to operate and maintain the pilot scale biogas plant during the minimum 3 months

period with full load. While failure to provide this designed quantity shall not be taken as a reason

for providing required performance of the plan.

Training of Purchasers and Beneficiary Personnel

The Contractor, using the Pilot scale biogas plant for co-digestion of Organic Fraction of Leftover

Food Waste, Vegetable Peels and Fruit Peels Facility operation team, as well as utilizing external

expertise, shall train the staff of the beneficiary in O & M aspects during commissioning and

stabilization and minimum 3 month’s period of operation and maintenance.

Resources for test run, commissioning, stabilization, operation and maintenance and training

The Contractor’s scopes include, but are not limited to:

Expenses related to trial run, test run and commissioning of pilot scale biogas plant for co-

digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels

including making arrangement for procurement of seed to start the anaerobic digester

Supply of all spares, Supply of manpower, maintenance facilities and any other

requirements for running the pilot scale biogas plant

All resources required for the said operation of the pilot scale biogas plant for co-digestion

of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels for the total

period of 3 months (after 3 months trial runs and stabilization ) after successful

commissioning shall be in the Contractor’s scope.

Transportation and disposal of dewatered digestate to the place designated by the

Employer or beneficiary.

Handing Over of the Pilot Scale Biogas Plant

Only if all the criteria mentioned in the above sections are fulfilled to the complete satisfaction of

the “purchaser”, the plant will be taken over by the purchaser. A proper handing over document

shall be prepared by the ”Purchaser for the transfer of possession of the pilot scale biogas plant

for co-digestion of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit Peels

from Contractor to the purchaser.

Process Flow diagram and typical diagram for Digester is enclosed at the end of the Tender

document

PERT chart for Execution of Work

Supply, Erection, Installation, Commissioning, Operation and Maintenance of Co-Digestion Plant of Organic Fraction of Leftover Food Waste, Vegetable Peels and Fruit

Peels for Biogas Generation on Turnkey Basis

Activity Duration in Months

1 2 3 4 5 6 7 8 9 10 11 12 13

Implementation Period

(4 months)

Trail runs,

Commissioning and

Stabilization Period

(3 months)

Operation and

Maintenance

( 3 months)

Issue of Commissioning

Certificate

Defects Notification

Period

Issue of Performance

Certificate

Technology

Dissemination

CLARIFICATIONS

Firm Name: M/s. Kankyo Group of Companies.

Question 1

We have udyog Aadhaar Registration Certificate with MSME doing major activity of manufacturing and Micro Enterprise type. We enclose herewith the proof of Registration certificate and we are seeking clarification for exemption from payment of Bid Security. Kindly clarify.

Answer Yes, Bid security is exempted. If you are a Micro or small enterprise as evidenced from your certificated submitted.

Question 2

20% of the work order against completion of detailed engineering and proof of ordering the equipment against equivalent bank guarantee

Answer Payment terms have been mentioned in the Tender Document Page No. 53. However, an amendment to special conditions of contract header “Payment for Goods and services supplied from India” is issued below. Please go through it.

Question 3

Kindly clarify the timeline of BG Submission and when shall it be released.

Answer Performance Bank Guarantee for 10% should be submitted within 14 days from the date of Purchase Order and should be valid for a period covering the warranty of the plant and 60 days.

Question 4

Can we follow the timeline as specified in the PERT Chart for Execution of work.

Answer Implementation period is 4 Months Trail Runs and Stabilization period is 3 months Operation and Maintenance period is 3 months

Question 5

It has been specified that Bidder has to provide suitable foundation, Kindly clarify whether the foundation has to be provided for specific equipment’s or whole plant area.

Answer Foundation has to be provided for all the Units mentioned in Page no 57 and 58 of the Tender Document.

Question 6

It has been specified that contractor has to conduct soil testing and based on soil test report the foundation has to be designed, Contractor has to provide soil test reports and design calculation to purchaser for their approval, We request to waive of this clause from the scope of supplier.

Answer Safe Bearing capacity of the Soil is approximately 12 tonnes/m2. However, the bidder has to confirm with testing at site before design of the foundation.

Question 7

The feedstock pumping can be progressive cavity screw pump instead of the submersible pumps. This will have a better performance than submersible pumps.

Answer Bidder has to quote for submersible pumps only. No deviation is allowed.

Question 8

Horizontal plug flow digester are efficient compared to the vertical CSTR. This can handle more solids and reduces water consumption. We have an advance in-house design. Plug flow digestors don’t require scum breakers as scum will not be formed. Can we suggest this

Answer Bidder has to quote as per the specifications and unit sizes mentioned in the tender document.

Question 9

Mixing in the digester is very important to improve the interface between feedstock and microbes. This will enhance the gas outputs and consistent output.

Answer For mixing of the digester contents, pipeline arrangements have to be made for recirculation of supernatant, digestate and biogas.

Question 10

All agitators and pump wetted parts can be in SS 304 instead of SS 316.

Answer Yes acceptable. All agitators and pump wetted parts shall be of SS 304 instead of SS 316 given in the Tender Document

Question 11

Feed and digestate collection tank thickness is more. Can this be optimized to have cost economics.

Answer No deviation is allowed. bidder has to follow the specifications given in the tender document

Question 12

Agitators are not required in the digestate tanks. The tanks can have a hopper bottom to concentrate the solids from where it could be pumped to the filter press. Chemical coagulants are not recommended, however organic coagulants are acceptable

Answer No deviation is allowed. It is under the scope of the bidder without any financial implications

Question 13

Gas pressure in the gas holder can be measured using a pressure switch in the gas feed line.

Answer Pressure Transmitter

Question 14

The tender does not specify clearly of the H2S scrubbing system. However we can provide iron pellet based dry scrubber for scrubbing the H2S. There is no need to remove CO2 as the biogas is used only for gas stove.

Answer Bidder can provide iron pellet and Lime soda pellets to ensure scrubbing of both H2S and CO2from biogas.

Question 15

Gas balloon capacity is high, hence sufficient pressure will not be maintained. Ideal volume will be 20 m3. The gas generation will be 40 to 50 m3/day based on the quality of feedstock.

Answer No deviation is allowed.

Question 16

Kindly specify the distance between the biogas plant and the utility point to design the gas compressor.

Answer Around 75 metres

Question 17 Since agitators are custom built and produced by us, we cannot source it from Remi. Can we supply our own product.

Answer No deviation is allowed. Make : REMI or SHINE can be provided

Question 18

Drawing specifies recirculation pumps but not captured in the specifications. Kindly brief on this.

Answer For recirculation of digestate as reply mentioned in the Point No 9, digestate withdrawal pumps can be used. Necessary valve arrangements may be made.

Question 19

Biogas flaring systems are manufactured by us and hence we will provide the same.


Question 20

We assume that the drying is by natural means.

Answer For dewatering of Digestate, Filter press has to be provided. No deviation is allowed.

Question 21

The sorting table can be in FRP instead of SS 304. The structure can be MS with FRP lining. This will have better life than SS 304.


Question 22

Vacuum pumps for gas holder is not required as we have gas compressor to pump the gas to the utility point.

Answer Yes. Vacuum Pump mentioned in page no 65 of the Tender Document is not necessary. Biogas Compressor is sufficient.

Question 23

Filter press is not a suitable system considering the consistency of the biosludge and low quantity. Either we can go for a simple drying bed or a gravity sludge bag dewatering system.

Answer No Deviation is allowed.

Firm Name: M/s. Mailhem IKOS Environment Pvt. Ltd.

Question 1

Is hard copy submission required? If yes, please provide address and addressee details with the pin code.

Answer No. However, all documentation as requested with the technical bid and commercial

bid in appropriate format needs to be uploaded online.

Question 2

Please clarify the Annexures required to be submitted along with the technical bid

Answer Please refer to Chapter – 1 – Instruction to Bidders - 1.10 Documents comprising the bid (Page No.13) – Please include chapter 7 – Annexure – XI – Format for Affidavit of Self Certification regarding local content in a R & D Equipment to be provided on Rs. 100/- Stamp paper.

Question 3

Please clarify Annexures to be submitted by the successful bidder post project awarding.

Answer Chapter – 6 – Contract Form, Chapter – 7 – Annexure – XII – Acceptance Certificate Form, Annexure – XIII – Performance Security.

Question 4

Please clarify – definition of the incoterm 'FOR' basis and is it at Beneficiary project site address?

Answer Yes, Delivery should be made at beneficiary’s site.

Question 5

What is total piping line distance from Biogas plant to end utilization point?

Answer Around 75 metres

Question 6

Power supply available at tapping point is 440 V / 220 V?

Answer It is 440 V – 3 phase

Question 7

Clause says - “Transportation and disposal of dewatered digestate to the place designated by the Employer or beneficiary.” Is to contractor scope as per clause – But Since the volume is very small, handling / disposal / utilization of the dewatered sludge to be considered in client scope.

Answer It is in the purview of the scope of contractor. However, the location of disposal / utilization of the digestate will be within the beneficiary campus and it will be identified by the beneficiary only.

Question 8

Disposal of excess liquid overflow from digester and filter press to be considered in client scope.

Answer To maximum extent it has to be utilized in the preparation of feed. Excess, if any, even after utilization for feed preparation, can be sent to the existing STP near the proposed site with an approximate distance of 20-30 m.

Question 9

What is the MANUFACTURERS' AUTHORIZATION FORM and why is it necessary? All equipment suppliers to fill this form? Please clarify.

Answer It is to be used if a dealer quotes for a manufacturer for the plant as a whole.

Firm Name: M/s. B-Sustain Energy Pvt Ltd

Question 1

In page :58 .,s.no 3., Gas holder enclosure, whether the balloon shed is fully enclosed or only the canopy and also we request you to mention the type of sheet has to used either Galvalume or polycarbonate or GI and also we request to mention the sheet thickness & colour coating of sheet, Please clarify.

Answer Gas holder is fully Enclosed. Type of Sheet: Galvalume Sheet Thickness: 0.45 - 0.5 mm Colour Coating of the Sheet: Environmental Green

Question 2

In page no : 60., s.no 13.,Gas flow meter flow rate mentioned is 15 to 25lit/min, but the actual flow meter unit reading is measured in m3/hr with total flow rate. Please confirm.

Answer Flow meter reading can be measured in liter/min or m3/hr. Bidder can convert the units mentioned in liter/min to m3/hr.

Question 3

In page no 60 ., (4.2.2.1) .,Agitator Shaft dia., 50mm is given, which is on higher side for the given tank size, we request you to consider the agitator shaft dia as 35 to 40mm. Please confirm.

Answer Bidder can provide Agitator Shaft dia. of 40 mm instead of 50 mm given in the tender document.

Question 4

For Feed collection tank Agitator Impeller dia., 667mm is given, which is on higher side for the given tank size, we request you to consider the impeller dia from 450 to 500mm. Please confirm.

Answer Bidder can provide impeller dia of 450 to 500mm instead of 667mm is given the tender Document.

Question 5

For digestate collection tank Impeller dia., 667mm is given, which is on higher side for the given tank size, we request you to consider the impeller dia from 330 to 360mm. Please confirm.

Answer Bidder can provide impeller dia of 450 to 500 mm instead of 667 mm is given the tender Document.

Question 6

Agitator RPM 50 is given, this speed causes vortex formation during agitation. So, we request you to consider the agitator RPM from 25 to 32 which is sufficient for this capacity of tank. Please confirm.

Answer RPM of the agitator shall be of 30 to 50

Question 7

Agitator Gear box type worm is mentioned, we requested you provide option for helical type also. Please confirm.

Answer Agitator Gear box type: Worm or helical type.

Question 8

Agitator Motor 1.5HP for both feed preparation tank and digestate collection tank is mentioned is on higher side for this tank capacity. We request you to consider agitator motor capacity as 1HP. Please confirm.

Answer Agitator motor capacity shall be of 1 HP instead of 1.5 HP

Question 9

In page no: 59. As per the tender technical data sheet Pump flow rate and Head for both submersible pumps and centrifugal pump is not available in the market, but the flow rate & head available in the market is on higher side. Please clarify

Answer Acceptable.

Question 10

In page no: 61. , (4.2.3) technical data sheet for submersible pumps. That suction and discharge flange 3 * 3 inches is not available. So we request you to consider from 2 to 2.5 inches. Please confirm.

Answer Acceptable. However, bidder has to ensure the proper functioning of the pumps without any technical/ operational difficulties during pumping of the waste.

Question 11

For Pump impeller and shaft SS316/SS304 is not readily available in the market. So we request you to consider CI also an option. Please confirm.

Answer MOC of Impeller and shaft of Submersible pumps and Centrifugal Pumps shall be of SS 304 instead of SS 316.

Question 12

In page :58 .,s.no 3., Gas holder enclosure, whether the balloon shed is fully enclosed or only the canopy and also we request you to mention the type of sheet has to used either Galvalume or polycarbonate or GI and also we request to mention the sheet thickness &colour coating of sheet, Please clarify.

Answer Gas holder is fully Enclosed. Type of Sheet: Galvalume Sheet Thickness: 0.45 - 0.5 mm Colour Coating of the Sheet: Environmental Green

Question 13

In page no: 62. Biogas collection and flare system. Here CO2 and H2S removal system is mentioned, we request you to mention the type of CO2 and H2S purification with the specification and the flow rate required for that. Please clarify.

Answer Bidder can use iron pellet and Lime soda pellets to ensure scrubbing of both H2S and CO2 from biogas.

Question 14

And for balloon direct mounted pressure release valve and high level switch are not necessary. Because AUTOMATIC RELEASES VALVE and ALARM WARNING already included is enough. Please confirm.

Answer For safety purpose it has been included in the Tender Document. However, the bidder can ensure safety with the help of AUTOMATIC RELEASES VALVE and ALARM WARNING. It is acceptable.

Question 15

In page no: 62. s.no 12, Gas compressor is mentioned and we request you to provide the specification, Flow rate, Motor capacity either flame proof or without flame proof (2HP or 3HP), pressure rating, receiver tank capacity (1m3 or 2m3), make (ELGI, ANEST IWATA, LEINTZ). Please confirm.

Answer Compressor in-built receiver tank of capacity 150 to 200 liters Flow rate: 12 to 15 cfm HP : 3 Pressure rating upto 7 to 10 bar Make : ELGI/ ANESTIWATA/ LEINTZ

Question 16

In page no: 63. s.no 2 ,technical data sheet for flaring system, in MOC of various parts (Pilot burner, flare burner assembly, flame arrestor, main gas line pipe, control valve assembly and gas line and moisture separator) For this SS316 is mentioned which is on higher side for this application and SS 304 will work for this same application. We request you to consider SS304 MOC for all the flaring unit parts apart from derrick structure. Please confirm.

Answer MOC of various parts mentioned in the Biogas Flaring System viz., Pilot burner, flare burner assembly, flame arrestor, main gas line pipe, control valve assembly and gas line and moisture separator shall be of SS 304 instead of SS 316.

Question 17

In page no: 63. S.no 4, flare burner material for construction, SS316 is mentioned. We request you to consider SS304 for the same application. Please confirm.

Answer MOC for flare burner shall be of SS 304 instead of SS 316

Question 18

In page no: 63. S.no 5, pilot burner, Flare using pilot ignition for this smaller capacity flaring unit is not required. We request you to consider Spark ignition system for flaring unit. Please clarify.

Answer Spark ignition system

Question 19

In page no: 64. S.no 7, material of construction, for flame arrestor element SS 316 is mentioned. We request you to consider SS 304 for the same application. Please confirm.

Answer MOC for Flame arrester element shall be of SS 304 instead of SS 316 mentioned in the Tender Document

Question 20

In page no: 65. S.no 11, material of construction, for moisture trap (body, flange, drain ball valve) SS316 is mentioned but we suggest SS304 will work for same application. Please confirm.

Answer MOC for moisture trap (body, flange, drain ball valve shall be of SS 304 instead of SS 316

Question 21

In page no: 65. Specification for gas balloon, 1350 gsm is mentioned. So we request you to provide option for 1050gsm with PVC coated fabric. Please confirm.


Question 22

In page no: 67.Filter press feed pump details, please mention pump make for filter press.

Answer Type: Progressive Cavity Type Make: Hydro Prokav

Question 23

Belt driven feed pump is given, we request you to consider direct driven pump also. Please confirm.

Answer Belt Driven/ Direct Driven

Question 24

We request you to confirm the stator and rotor MOC for filter press feed pump. Please clarify.

Answer Stator: Nitrile Rotor: Alloy Steel

Question 25

In page no: 67. (4.4.1) Recommendation for piping, we request to consider UPVC or CPVC for slurry & low pressure gas lines, these pipe fittings has flanges, bends and all other necessary items with ANSI class standards and the pipes are available from 12kg/cm2 to 15kg/cm2 pressure. Please confirm.

Answer UPVC or CPVC acceptable

Question 26

In additional to Finolex make PVC pipes, we request you to include ASTRAL, ASHIRVAD and SUPREME make. Please confirm.

Answer In addition to the recommended make given in the tender document, ASTRAL, ASHIRVAD and SUPREME makes can also be provided.

Question 27

We request you to mention MOC for gas pipe line. We suggest CPVC pipeline for low pressure gas line upto 500 millibar and MS seamless pipe or SS304 schedule pipe for gas pressure above 1bar. Please confirm.

Answer Yes Confirmed

Question 28

In page no: 68. (4.2) Recommendation for valve, valve make (AUDCO/KSB) is mentioned, in additional to AUDCO/KSB we suggested you to include optional makes (CRI/AMCO/LEHREY/CALIBER). Please confirm.

Answer In addition to the recommended make given in the tender document, CRI/AMCO/LEHREY/CALIBER makes can also be provided.

Question 29

In page no: 69. (4.5.1) Electrical Equipment, In addition to the recommended make please consider and add the below mentioned make also. Please confirm. Please consider and add ORBIT/POLYCAB makes for Electrical Cables. Please confirm.

Answer In addition to the recommended make given in the tender document, ORBIT/POLYCAB can also be provided.

Question 30

Please consider and add ABB/SCHNEIDER for Ammeter, Voltmeter, Relay, SFU, HRC Fuses, MCB, OL/Relays, Local Start/Stop PB Stn, Indication Lamp, Selector/Control Switch. Please confirm.

Answer In addition to the recommended make given in the tender document, ABB/SCHNEIDER may be considered

Question 31

In page no: 70. (4.6), Agitators make recommended REMI. We suggest/request you to give options which are equivalent to REMI or please mention as other equivalent make. Please confirm.

Answer REMI or SHINE

Question 32

Minimum One year warranty for equipment’s is mentioned, please let us know it covers from which phase of the project.

Answer Warranty would run from the date of installation of the plant.

Question 33

Please clarify the stage-wise payment terms.

Answer 20% of the work order against completion of detailed engineering and proof of

ordering the equipment against equivalent bank guarantee

40% of the work order cost against factory inspection and the delivery of all

equipment in site

30% of the work order cost against the erection, testing, trial run,

commissioning and three months operation and maintenance of the plant

10% of the cost after the warranty period of One Year from date of installation

and commissioning

Question 34

In page no: 76. (4.9.1), Please mention the scope of waste (raw material) collection from the beneficiary’s place. Please confirm.

Answer Raw material: Leftover Food Waste, Vegetable and Fruit Peels only.

Question 35

Please let us know the scope of work for drying and is there any solar drying yard available or any new solar dryer has to be installed; please provide the technical data or specification for dryer. Please confirm

Answer Within the premises.

Question 36

Please let us know the scope of supply of Sieving mesh and Collection Bags to collect the filtered slurry cakes/powder. Also please let us know the scope of Liquid slurry disposal. Please confirm.

Answer Scope of supply of Sieving mesh and Collection Bags to collect the filtered slurry cakes/powder is Not Necessary. Beneficiary will provide bags to collect the dewatered cake.

Question 37

Laboratory facilities for testing and treatability studies of Biogas Plant should be arranged by the beneficiary at their own. Please clarify.

Answer Except analysis of the biogas composition, all other facilities required for testing and treatability studies of Biogas Plant can be arranged at CSIR-CLRI Campus. The selected contractor has to bring the samples to the CSIR-CLRI premises and can be tested by the contractor man power only

Question 38

We request you to permit and arrange for site visit. Please confirm.

Answer Site visit is permitted. Kindly contact Dr. K Sri Balakameswari, Email ID – [email protected], [email protected] Bidder shall visit the site

Question 39

During the pre-bid meeting, while discussing about the operation of filter press for food waste application and its ineffectiveness of solid separation because of slimy nature of the food waste digestate, the committee advised to use coagulant to filter the digestate using filter press. Please confirm and let us know the scope of supply of coagulants during the Plant Stabilization and Operation & Maintenance period.

Answer As mentioned in the tender document, during (i) Trail runs, commissioning and stabilization period and (ii) Operation & Maintenance period, necessary chemicals if required, manpower, spares etc. has to be arranged by the bidder.

Question 40

Please consider and mention the scope of providing enclosure/shed/room for Filter press, Gas Compressor and Electrical Panel.

Answer Electrical Panel has to be provided by bidder as mentioned in the Tender document.

mailto:[email protected]

CLRI Clarification to all bidders:

1. Time Schedule

Implementation period is 4 Months

Trail Runs and Stabilization period is 3 months

Operation and Maintenance period is 3 months

2. All the MS Units / Structures ( External) shall be painted with 2 coats over a primer


3. All the Civil units shall be coated with 2 coats of cement paint over a coat of primer


Amendment to Clause 1.10 of Chapter – 1 – Instruction to Bidders – Page No. 13

1.10. Documents Comprising the Bid

1.10.1 The bid prepared by the Bidder shall include documents as under:

A. Technical bid – COVER 1

(a) Bidder Information Form – Annexure – I (Chapter 7 – Page No. 85);

(b) Declaration abiding by the Code of Integrity and no conflict of interest for public

procurement – Annexure – II (Chapter 7 – Page No. 86);

(c) Manufacturer’s Authorization Form along with a certified copy of the Agency Agreement between

the bidders and the Indian Agent –Annexure – III (Chapter 7 – Page No. 87);

(d) Bid security as specified in the Invitation to Bids – Annexure – IV (Chapter 7 – Page No. 88);

(e) Bid Securing Declaration in Lieu of EMD - Annexure – V (Chapter 7 – Page No. 89)

(f) Performance Statement Form – Annexure – VI (Chapter 7 – Page No. 90);

(g) Deviation Statement Form – Annexure – VII (Chapter 7 – Page No. 91);

(h) Service support details form - – Annexure – IX (Chapter 7 – Page No. 93);

(i) Bid Form - Annexure – X (Chapter 7 – Page No. 94-95);

(j) Format for Affidavit of Self Certification regarding Local Content in a R & D Equipment to be

provided on Rs. 100/- Stamp paper – Annexure – XI (Chapter 7 – Page No. 96)

(k) Declaration of eligibility - ANNEXURE – XVI (Chapter 7 – Page No. 107 -108)

(l) Site inspection declaration - ANNEXURE – XVII (Chapter 7 – Page No. 109)

(m) Organization chart with (technical qualification)/ power of attorney of tenderer - Annexure –

XVIII (Chapter 7 – Page No. 110)

(n) Financial statement of the tenderer - ANNEXURE – XIX (Chapter 7 – Page No. 111 -112)

(o) Workplan & programme - ANNEXURE – XX (Chapter 7 – Page No. 113)

(p) Experience as contractor - ANNEXURE – XXI (Chapter 7 – Page No. 114)

(q) Documentary evidence establishing that the bidder is eligible and is qualified to perform the

contract if its bid is accepted;

(r) Integrity Pact, if required;

(j) Documents establishing goods eligibility and conformity to bidding documents; indicating the

Indian Customs Tariff Number (ICT & HSN No.)

(k) Schedule of requirements – Chapter 3 – Page No. 55;

(l) Purchase order copies or Installation and Commissioning reports in support of Minimum

eligibility criteria as specified in Chapter 4, Page No.56

(m) Warranty offered by the firm for the said goods. A statement regarding warranty offered should

be enclosed with the Technical Bid.

B Price bid – Cover 2 - Bill of Quantity (BoQ1.xls sheet)

Amendment to Special Conditions of Contract of Chapter – 2 – General Conditions of

Contract & Special Conditions of Contract – Page No. 53

Performance Security

The amount of the Performance Security shall be 10 % of the contract value. The Performance

Security should be valid for a period covering supply period + warranty period of plant and

60 days. The Performance Security should be submitted within 14 days of release of the Purchase

Order.

Payment for Goods and Services supplied from India:

The payment shall be made in Indian Rupees, as follows:

20% of the work order against completion of detailed engineering and proof of ordering

the equipment against equivalent bank guarantee

40% of the work order cost against factory inspection and the delivery of all equipment in

site

30% of the work order cost against the erection, testing, trial run, commissioning and

three months operation and maintenance of the plant

10% of the cost after the warranty period of One Year from date of installation and commissioning

The tender specification, instructions to bidders, General conditions of contract and

special conditions of contract would stand changed to the above extent.

Tender Due Date & Time: 16th July, 2019 at 3.00 P.M (IST)

Technical Bid Opening Date & Time: 17th July, 2019 at 3.00 P.M (IST)

STORES & PURCHASE OFFICER