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Innovative Technologies for Innovative Technologies for Innovative Technologies for Innovative Technologies for Urban Waste Water Treatment Urban Waste Water Treatment
byM k h GROVER
4th March2013
Mukesh GROVERDegremont
Urban Waste Water Treatment Sewage – a complex waste water
URBAN WASTE WATER - SEWAGESource of • Foul odour• Infectious Diseases• Surface and Ground Water Pollution
(Organics, Detergents, Medicinal residues, Harmones, Bacteria, Pathogens, Virus, etc.)
• Eutrophication of Water Bodies• Huge volume of polluting water
Series of Treatment steps required to remove• Foul odour, Grit, Floating matter• Suspended Solids (TSS)• Suspended Solids (TSS)• Soluble Carbon - Organics (BOD)• Nutrients – Nitrogen, Phosphorus• Bacteria, Pathogens, Virus
-2-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Drivers for Innovative Technologies
Issues driving the technology progressionPopulation Growth, Development & Shrinking Urban space.
Growing realization to upgrade Urban Sanitation System.
Pollution of raw water resources.
“A t ” f th f t th t W t W t ld b t d i t “R ”“Acceptance” of the fact that Waste Water could be turned into “Resource”.
Statutory Standards & Monitoring for compliance getting stringent.
Growing acceptability to Recycle & ReuseGrowing acceptability to Recycle & ReuseUse for Horticulture / Urban Landscaping
Washing of vehicles / public transport
Raw water for Industrial application
And, possibility of INDIRECT Potable Use.
-3-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Its all aboutIts all aboutSustainable Sustainable DevelopmentDevelopment
Urban Waste Water Treatment Several possibilities for Innovation
PRE-TREATMENT
(PHYSICAL)
PRIMARY TREATMENT
(PHYSICAL / CHEMICAL / BIOLOGICAL)
SECONDARY TREATMENT
( BIOLOGICAL)
RAWRAW M di & Fi S iClarification
(PHYSICAL) (PHYSICAL / CHEMICAL / BIOLOGICAL) ( BIOLOGICAL)
MAIN TREATMENT LINEMAIN TREATMENT LINEActivated Sludge Process (CASP / BNR)
RAWRAW
SEWAGESEWAGEMedium & Fine Screening Grit Removal Oil & Grease Removal
Chemically Enhanced clarificationAnaerobic Treatment (Biological)
Submerged Media Aerobic Bio-FilterationMoving Bed Biological Reactor (MBBR) / (IFAS)
SLUDGESLUDGE TREATED EFFLUENTTREATED EFFLUENT
Disposal / ReuseDisposal / Reuse
SLUDGESLUDGEMANAGEMENTMANAGEMENT
Sludge ThickeningSludge Anaerobic Digestion/StabilisationDewatering / Solar Drying
Di l b d Filli
Sludge for Land Filling / Agriculture Manure
Bi f El t i l E P d ti
BYBY--PRODUCTSPRODUCTSDISPOSAL / REUSEDISPOSAL / REUSE
Activated Sludge Process (EA / BNR)Sequential Batch Reactor (SBR)Moving Bed Biological Reactor (MBBR / IFAS)Membrane Biological Reactor (MBR)
-4-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Disposal by Land Filling Biogas for Electrical Energy Production
Sludge Thermal Oxidation & Energy Recovery
Membrane Biological Reactor (MBR)
Urban Waste Water Treatment Innovative Secondary Treatment
Suspended Growth ProcessActivated Sludge Process (ASP / BNR)
Sequential Batch Reactor (SBR)
Immobilized media ProcessBiological Filtration Oxygenated Reactor (BIOFOR)
Micro/Ultra membrane Filtration Process
Membrane Biological Reactor (MBR)
-5-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment The beginning of Innovation
The 20th Century : The Birth of Activated Sludge ProcessYear 1908 : BOD Test recommended by The Year 1908 : BOD5 Test recommended by The Royal Commission on River Pollution (U.K.).
Year 1912 : Famous “30 : 20 + Full Nitrification“ Effluent standard was adopted which led to the development of treatment which led to the development of treatment processes capable of meeting the standards.
Year 1913 : Activated Sludge Process developed in Britain. The process not only improved the treated effluent quality but also resulted in over 4 treated effluent quality but also resulted in over 4 fold reduction in the size of the plant compared to the contemporary treatment systems.
Year 1916 : First full scale Activated Sludge Plant built in Worcester (U K )Plant built in Worcester (U.K.)
ACTIVATED SLUDGE PROCESS IS STILL THE DOMINANT SECONDARY TREATMENT PROCESS AND THE “ENGINE” AROUND WHICH MODERN SEWAGE
-6-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
TREATMENT PROCESS AND THE ENGINE AROUND WHICH MODERN SEWAGE TREATMENT PROCESSES ARE DEVELOPED.
Urban Waste Water Treatment Innovative Technologies - SBR
Suspended Growth Process- The Sequential Batch Reactor (SBR)
- CYCLOR® by Degrémont
-7-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - SBR
Biological Reactor + Secondary ClarifierContinuous Operation ASP
Biological Reactor + Secondary Clarifier
CYCLOR® SBR
Sequential Batch Operation
-8-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - SBR
In SBR, various stages of treatment are not seperated by units but by time.
DecantDecant
FillFillA tA t
77
0066
SS
Start~ 1 hr
AerationAeration--OFFOFF
AerateAerate 00
55
SettleSettle
AerationAeration--ONON11
55~ 2 hrs
~ 1 hr
SettleSettleFillFillAerateAerate
22 44
-9-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
2233
44
Urban Waste Water Treatment Innovative Technologies - SBR
CYCLOR® SBR
Reactor BasinDecanter
Decanter to evacuate treated
Pre-treated
Waste Waterevacuate treated
effluent
All SBR BASINS ith
Aeration SystemAll SBR BASINS with
Aeration system & Decanter TREATED
EFFLUENT
-10-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - SBR
-11-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - SBR
ADVANTAGES
Extensive biological treatment efficient removal of C N PExtensive biological treatment – efficient removal of C, N, P.
Good sludge settling conditions – good effluent quality (BOD<10,
TSS<15)TSS<15).
A simple system - easy to operate & needing little maintenance.
PLC based Automated Control system – minimum human intervention. y
A flexible process - treatment stability even in the case of a breakdown.
A reliable and optimised process.
-12-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - Biofilters
Fi d M di Att h d G th PFixed Media Attached Growth Process- The Submerged Aerobic Biological Filters
- BIOFOR® by Degrémont
-13-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - Biofilters
Attached Growth on submerged MediaCo-current and Up-flowpAerobic processBiological Process & Physical Filtration simultaneously in the same Unit,
Biofilter in operation Primary Treated Sewage channel
Biofilter under Backwashing
-14-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Treated effluent
Urban Waste Water Treatment Innovative Technologies - Biofilters
Submerged Media
Biomass film
Media
Treated Effluent
DirtyAirWater
Media WashWaterOutlet
Process(Oxygenation)
Air
y
Loosening(S )
Wash Water
Pretreated Sewage
Air and Sewage Flow Co-CurrentDiffused Aeration
TrappedParticulates
(Scour)Air
-15-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Air and Sewage Flow Co-Current
Delhi Gate Nalla STP Example of Innovative Technology
15 MIGD Capacity- sewage/wastewater from open drain.STP with Power Generation using Non-conventional Energy Source (Biogas)2.5 Ha Area used versus 8 Ha for Conventional.T ti St d d (BOD 10 /l TSS 10 /l)Tertiary Standards (BOD <10, mg/l, TSS < 10 mg/l)over 80% Energy Self SufficiencyLow Carbon FootprintOdour removal provision.
-16-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - Biofilters
ADVANTAGESADVANTAGES
Compactness, ModularityBiomass StabilityBiomass StabilityHigh Treatment ReliabilityEnergy savingsTertiary Quality effluent (BOD < 10 TSS<10)Tertiary Quality effluent (BOD < 10, TSS<10)No smell and Odour nuisance
-17-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - MBR
Suspended Growth Process- The Membrane Bioreactor (MBR)The Membrane Bioreactor (MBR)
- ULTRAFOR® by Degrémont
-18-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - MBR
In MBR, the Membrane forms a In MBR, the Membrane forms a Physical barrier for bioPhysical barrier for bio--sludge / sludge / mixed liquor from biomixed liquor from bio--reactorreactormixed liquor from biomixed liquor from bio--reactor.reactor.
The use of Membrane as a barrier for suspended solids / biomass The use of Membrane as a barrier for suspended solids / biomass enables the process designer to stretch the limits of activated sludgeenables the process designer to stretch the limits of activated sludge
-19-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
enables the process designer to stretch the limits of activated sludge enables the process designer to stretch the limits of activated sludge process and achieve extraprocess and achieve extra--ordinary results.ordinary results.
Urban Waste Water Treatment Innovative Technologies - MBR
Bi t
Biological Treatment Process
Physical Separation Process
Membrane Filter
Bioreactor
Membrane Bioreactor
Conventional TTP Process ULTRAFOR® MBR ProcessConventional TTP ProcessP iP i
ActivatedActivatedSludgeSludge
SecondarySecondaryClarifier Clarifier
SandSandFilt Filt
PrimaryPrimaryClarifierClarifier
Filter Filter
-20-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
SludgeSludgeDigestionDigestion To SludgeTo Sludge
Dewatering Dewatering
Urban Waste Water Treatment Innovative Technologies - MBR
MBR MEMBRANES MBR MEMBRANES –– SUBMERGED TYPESUBMERGED TYPE
Membrane Fibre CrossMembrane Fibre Cross--SectionSection
Fibre = 0 035 µFibre = 0.035 µ
Permeate
Sludge
-21-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Cassette = 30 - 60 Elements
Membranes in Operation
Urban Waste Water Treatment Innovative Technologies - MBR
ADVANTAGES
B t t ti lit ffl t i h t t t t t liBest tertiary quality effluent in shortest treatment line.
Compact (Smaller bioreactor, no clarifiers, no sand filters)
Reliable (Performance independent of sludge settling characteristics)
Entirely aerobic (no odors)
Readily adaptable for N & P removal
Ideal For Staged Expansion
Best choice to meet effluent quality for Hygienic REUSE
-22-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - Installations
Colombes (Paris), FRANCE1,035 MLD (DWF 240 MLD)
COMPACT FOOTPRINT3 2 h t (U/G)3.2 hectare (U/G)
1.3 hectare (O/G)
-23-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment Innovative Technologies - Installations
60,000 m3/day capacity TTP at V-Valley, Bangalore - Largest sewage TTP in India for Industrial Re-use of treated effluent
-24-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Designed & Built by Degremont
Urban Waste Water Treatment Innovative Technologies - Installations
1,500 m3/day Membrane Bioreactor at Cubbon park, Bangalore : - First MBR Plant in India for Urban Landscaping reuse of treated sewage
-25-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Designed & Built by Degremont
Urban Waste Water Treatment Innovative Technologies - The FUTURE
C ( f C )
Emerging Technologies in 21st Century
Microbial Fuel Cell (Biofuel Cell Technology)simultaneous treatment of waste-water and energy generation
Bio-membrane SystemsBio membrane Systemsextraction system / fixed film system / filtration system
Advanced Oxidation ProcessHeterogeneous Photocatalytic Processes to generate reactive hydroxyl group
(combination of special metal oxides (i.e TiO2) with UV system)
Nano Technology for pollution prevention treatment and remediationNano Technology for pollution prevention, treatment and remediationNanotech Membranes, Nanosorbents, Nanoreactors…
-26-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
Urban Waste Water Treatment A challenging activity
THANK YOU
-27-2013_CSE : Innovative Technologies for Urban Waste Water Treatment
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