water treatment works site inspection proforma
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WATER TREATMENT WORKS PROFORMA
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Raw Water Quality
Parameter Units Min Average MaxTurbidityColourpHTempT. hardnessCa HardnessT. alkalinityECTDSIronManganeseSulphateChlorideNitrateNitriteAmmonia
Comments:
Treated Water Quality
Parameter Units Min Average MaxTurbidityColourpHTempT. hardnessCa HardnessT. alkalinityECTDSIronManganeseSulphateChlorideNitrateNitriteAmmoniaChlorine resid.
Comments:
Treatment Works Layout____________________________________________________________________
Treatment Works Flow Diagram
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WATER TREATMENT WORKS PROFORMA
Name of Works ………………………………………… Inspection Date ….. /…. /20
Location : … …………………………
Construction date: ….. ….
Raw Water Source : … …
Design Capacity : ………..m3/d Current Output :…………. m3/d.
Maximum Output : …………. m3/d
Brief description of works:
___________________________________________________________________
1. Raw water abstraction :
Location . …… …
Gravity Pumped
Description :
Bar screens spacing …….. mm
Raked screens spacing ……… mm
Rotary screens mesh size ……. mm
Pumps:
Type ( i ) ……………………… …No. of pumps …………..
Manufacturer ……………………..
Delivery ……………………………..@ Head ……
Pump motor : Fixed speed Variable speed
Manufacturer …………………….. Rating……… kw
Speed ……… rpm Voltage ……….….V
Control: local remote from ………………………………
Type ( ii ) …………………………..No. of pumps ……..
Manufacturer … ……………………………….
Delivery ………………………………@ Head………
Pump motor : Fixed speed Variable speed
Manufacturer …………………………….Rating……..…..kw
Speed ……… .rpm Voltage …… V
Control: local remote from ………………………………
Condition:
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2. Raw water storage :
Location:
No. of reservoirs ……..….. Type of storage reservoir(s) …………
Storage volume ( i )……..… m3
Outlet : Gravity Pumped
Condition:
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3. Raw water transmission :
Distance to treatment works inlet ……… m
Type of transmission system : ……….
Pipe diameter …………………mm
Condition:
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4. Treatment works inlet
Inlet flow control : none Valve manual set Valve remote set
Inlet Chamber :
Dimensions : L …… m, W ….… m, H ….… m , diameter…………m
Exit from chamber : Pipe Weir Channel
No of exits ……..
To ………………..
Condition:
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5. Aeration
Type ……………………………………………………..
Condition:
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6. Pre-Ozone :
Reason for ozone treatment ……
No. of ozonators ………….. Type …………….
Manufacturer …………
Min output …..……kg/h, Max output ………… kg/h
Ozone contact tank volume ……….m3
Type of Ozone destructor …………………………………………………..
Pre-ozone dose ……….. mg/l,
Post-ozone dose ……….mg/l
Type of post ozone destructor ………………………………………………..
Condition:
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7. Flash/rapid mixing
Type of mixing : Mechanical Hydraulic
No of units ……… No. of stages…………. Total residence time ………secs @ … .m3/h/stage
Description : …………………………………………………………………………...
……………………………………………………………………………………………………………………………………………………………………
Condition:
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8. Flocculation:
Type of flocculator : Mechanical Hydraulic
No. of stages………… …. Total residence time ……….… mins
Residence time /G value per stage : ( i ) ……...…min/…….…s-1
( ii ) ………. min/ ………s-1
( iii ) ……… min/ ………s-1
Description : …………………………………………………………... ……..…………………………………………………………………………………………………………………………………………
Condition:
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9. Clarification
Type ( i ), No. of tanks …………..
Manufacturer………………………………
Loading rate ……………m3/m2/h Dimensions ………………………...
Desludging system …………………….
Time between desludging operations …………… hrs.
Duration of desludging …………… mins.
Condition:
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10. Filtration
Type ( i ), No. of filters …………. Type……..
Manufacturer ………………………………………………………………………….
Filtration rate …… m/h, Dimensions L ….… m, W ……… m
Type(s) of media : …………… … Size…………mm Depth ……. m … ……………..Size…………mm Depth ……. m
Average run length …………….. hrs
Backwash initiation : time headloss turbidity […………. m ] [ ………..NTU ]
Underdrain :
Suspended floor Latterals
Type of nozzles …… …….. Nozzle spacing ………………m
Support media : Size …………..mm; Depth …………….m
Operation :
Constant rate Declining rate Constant head
Increasing head
Control :
Float Flow meter Level probes
Other
Describe …………………………………………………….
Condition:
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11. Backwash :
Air scour rate ………m/h, Duration……… mins.
water rate……… …..m/h, Duration ………mins.
Backwash flow rate compensation for water temp. : Yes No
Washwater supply : Elevated tank Pumps
Tank volume………….m3 Static head above filters …………..mNo. of pumps …………Type of backwash pump …………………..……
Manufacturer ………………………………………………………………..
Fixed speed Variable speed
Delivery…………………………..@ Head…………………m
Condition:
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11. Activated carbon
Reason for activated carbon treatment …………………………………..
Powdered carbon Granular carbon filters
Type of granular carbon ………….... Manufacturer …………….…….. ..
No. of carbon filters…….. Dimensions L……….m, W ………… m
EBCT …………… mins
Time between regenerations ……………….
Condition:
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12. Treated water storage
No. of reservoirs …………., Volume ( i ) …….… m3
Volume ( ii ) ……….m3
Separate chlorine contact tank; Yes No Volume ………….m3
Condition:
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13. Treated water forwarding
Gravity Pumps
Pumps: Type ( i ) Manufacturer ………………………… ……..
Type of pump …………………..…...
Delivery………….. l/s , @ Head …… m
Motor : Fixed speed Variable speed
Speed …………rpm, Rating ………… kw
Voltage ……………. kV
Type ( ii ), Manufacturer ………………..
Type of pump ………
Delivery ………… l/s m3 , @ Head ………… m
Motor : Fixed speed Variable speed
Speed …… …..rpm, Rating ………… kw
Voltage ….…kV
Condition:
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14. Chemical make-up and dosing
a) Primary coagulant :
Type ……………….……Produced by …………………..………...
Supplied in bags , Weight of bags……………kg
Supplied as liquid , Volume of container ………..m3 , Strength …………
Supplied in bulk , Per delivery…… .tonne, Strength …………...
Total storage capacity at treatment works …………… tonne
No. of storage tanks ……… . Volume per tank ………….. m3
No. of make-up tanks………………….Volume per tank ……………….m3
Strength of made-up solution …………………….
Solution dosing pumps :No. of pumps ………….. Min delivery …………….l/h
Max delivery …………….l/hManufacturer
…………………………………………………………………..
Automatic flow proportional dosing, Yes No
Carrier water, Yes No
Range of dose : ……………..mg/l to ……………….mg/l
Dosing point(s)………………………………………………………………
Rapid mix facility : mechanical Hydraulic static mixer
Residence time at design flow ………………mins
b) Polyelectrolyte :
Type……………. ….. Manufacturer …………………………. ……
Weight of bags ……… kg Storage capacity …………… kg
Type of make-up system ……………………………………………………………..
Carrier water, Yes No
Solution dosing pumps :
No. of pumps …………….. Min delivery …………….l/h
Max delivery …… l/hManufacturer ………………………………………………………………..
Automatic flow proportional dosing , Yes No
Range of dose, ………… mg/l to ………. mg/l
Dosing point(s) ……………………………………………… ………….
Residence time ………mins.
c) Lime dosing :
Pre-lime Post lime
Delivered in : Bags Bulk
Weight per bag ………..kg, Bulk delivery ………………tonne
No. of silos ……………… Silo capacity ………………tonne
No. of make-up tanks …………… Volume per tank ………………m3
Slurry strength ……………..%
Slurry dosing pumps :No. of pumps ……………. Min delivery……………..l/h
Max delivery …………….l/h
Automatic flow proportional dosing Yes No
Automatic via pH monitor Yes No
Carrier water, Yes No
Saturator; Yes No
Max capacity …………………………..
Range of lime dose; Pre-lime ………………..mg/l to ………………mg/lPost-lime ……………….mg/l to ………………mg/l
Dosing point(s) ………………………………………………………………………...
Rapid mix facility; Pre-lime ………………………………………………….
Post-lime …………………………………………………
d) Chlorination :
Gas Hypochlorite On-site generation
Gas :Delivered in : Cylinders Drums
Cylinder capacity ……………..kg Drum capacity ……………….kg
No. of containers in store ………………….
No of containers on-line …………………..
Abstaction from containers; Gas Liquid
No of evaporators ……………… Capacity …………………..kg/h
Chlorinators :No. of chlorinators; duty ………standby…….. Max delivery
……….kg/hTurn-down ratio …………….Manufacturer
………………………………………………………………….Type ………………………..
Hypochlorite :Sodium hypochlorite Calcium hypochlorite
Storage capacity on site ………….m3
No. of dosing pumps ……………, min. delivery ………..l/hMax delivery ………..l/h
On-site generation :No. of units ……………. Max capacity ……………kg Cl2/hNo. of dosing pumps ……………, Min. delivery ………..l/h
Max delivery ………...l/h
Flow proportional dosing residual control
Range of chlorine dose; …………………. mg/l to ………………mg/l
Required chlorine residual in treated water ……………….mg/l Dosing point location(s) …………………………………………………………
……………………………………………………………………………..
e) Other chemicals :
Condition:
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15. Instrumentation :
a) FLOW METERS
( i ) Location………………………………………………………………………………….Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………
Monitor Recorder Controller for ………………………………..
…………………………………………………………………………………………………
Local display Remote display at ………………………………………….
( ii ) Location…………………………………………………………………………………. Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………
Monitor Recorder Controller for ………………………………..
…………………………………………………………………………………………………
Local display Remote display at ………………………………………….
( iii ) Location………………………………………………………………………………… Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………
Monitor Recorder Controller for …………………………………
…………………………………………………………………………………………………..
Local display Remote display at ………………………………………….
( iv ) Location ………………………………………………………………………………… Manufacturer ……………………………Model ………………………………………………
Type …………………………………………………………………………………………….Range ………………………… to ……………………………
Monitor Recorder Controller for …………………………………
………………………………………………………………………………………………….
Local display Remote display at ………………………………………….
( v ) Location …………………………………………………………………………………. Manufacturer ……………………………Model ………………………………………………Type …………………………………………………………………………………………….Range ………………………… to ……………………………
Monitor Recorder Controller for …………………………………
…………………………………………………………………………………………………..
Local display Remote display at ………………………………………….
Condition:
b) TURBIDIMETERS
( i ) Location …………………………………………………………………………………..Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
( ii ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model
…………………………………...Range ……………………………… NTU to …………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
( iii ) Location …………………………………………………………………………………Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
( iv ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
( v ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model …………………………………...Range ……………………………. NTU to ………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
( vi ) Location ………………………………………………………………………………...Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU
Monitor Recorder
Local display Remote display at …………………………………………..
Condition:
c) pH METERS
( i ) Location …………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( ii ) Location ………………………………………………………………………………….Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( iii ) Location …………………………………………………………………………………Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( iv ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
Condition:
d) CHLORINE RESIDUAL METERS
( i ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2
Free chlorine Total chlorine
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( ii ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2
Free chlorine Total chlorine
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( iii ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2
Free chlorine Total chlorine
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
( iv ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2
Free chlorine Total chlorine
Monitor Recorder Triple validation
Controller for …………………………………………………………………….
Local display Remote display at ………………………………………….
Condition:
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16 Sludge and Wastewater Treatment/disposal
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