Sespl capablity and technology options for reuse and recyle of seweage
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Presentation by Sauber Environmental Solutions Pvt. Ltd
Ahmedabad
Comparison of Various Technology Options for Reuse and Recycle of Sewage
AhmedabadEmail: sauberenv@gmail.com
Agenda Agenda
Capability of M/s Sauber Environmental Solutions Pvt Ltd
AHMEDABADAHMEDABAD
§ M/s Sauber Environmental Solutions Pvt Ltd. is a complete project management & Consultancy organization
providing services in the field of Environmental engineering ranging from Design, Engineering & consultancy to
full fledge construction, operation & project management on Turnkey basis.
§ We are pioneer in providing eco-friendly, low cost treatment solutions for water & municipal wastewater
treatment, industrial effluent treatment, Biogas generation and recycle & reuse of treated
wastewater/effluent.
§ We have 20+ years of experience in this filed and having diversified human and technical resources, the depth
of know-how to help clients achieve success in handling all their environment related issues whether municipal
Overview at Glance
or industrial.
§ We have 15+ years of experience on 24x7 water services, NRW management, DMA management, Active leakage
management and overall operation management for water and waste water utilities in various cities in India
like Jamshedpur, Mysore, Haldia, Kolkata Salt Lake, etc
§ We consistently work hard to add value for our customers by understanding their business needs, their culture
and the risks they face so that we can meet their requirements in the most effective way – Helping them
achieve more for less.
Vision
• We shall be the highly respected professionally managed company inenvironmental segment operating worldwide & providing services bothin the EPC & Service sector of water & wastewater treatment, recycle& Reuse business.
• We shall be fully committed to provide a clean, healthy and wellprotected environment to all, supporting a sustainable society andeconomy.economy.
• We, shall continuously strive, develop & work consistently to offerbest treatment solutions so as to save & preserve most precious giftsof nature i.e. environment (air, land & water), enrich our globalenvironment, to make world a beautiful, better & more sustainable tolive and make a difference in the lives of others.
Our Core Strength & Competencies • Process technology selection as per the input & desired output standards of any
treatment facility
• 24x7 water services, NRW management, DMA Management
• Detailed Design & Engineering Knowledge
• Research & development/ treatability studies including set up of pilot plants
• Cost estimation & procurement capabilities• Cost estimation & procurement capabilities
• Project Management in total including design, supply, construction, erection,
commissioning, O & M, treated water Recycle & reuse
• In House Capability to execute projects on Turnkey basis
• Operation & Maintenance of whole plant
• 360 degree treatment solutions for every segment
Services We Offer in Consultancy At Sauber, we provide fully integrated array of key services for India’s major markets in the
field of environment– ranging from project concept, planning, Bid Management, consulting,
design, engineering, construction, supply, testing, commissioning, operation &
maintenance.
– Preparation of Concept note, Pre Feasibility Report, Detailed Project Report, RFQ
Documents
– Basic and Detailed Design & Engineering
– Bid Process Management
– Project Management consultancy – Monitoring & Supervision
– Existing treatment facility upgradation
– Research & development/ treatability studies including set up of pilot plants for
treating any industrial effluents.
– Environmental Studies – EIA, EMP
– Environment Management and Compliance
Services We Offer On EPC & Project Management
WTP - Conventional &Modern Technologies • Intake well• Rising Main• Water Treatment plant• Clear water pumping main• Distribution Network
Raw Water Intake Raw
Water Supply Mains
Water Treatmen
t Plant
Water Metering & billing
Operation &
Maintenance
Water Treatment • Distribution Network
• Elevated Service Reservoirs
• GSR, CSR, UGR etc• Metering System
t Plant
Clear water
Reservoir &
Pumping Station
Clear Water Supply Mains
ESR
Distribution
network
& billingTreatment
works
Services We Offer On EPC in Municipal Segments
Services We Offer On EPC in Industrial Segments
Technologies we offer • Conventional water treatment plant based
on flash mixing, clariflocculation followed
by gravity operated Rapid Sand filtration• Non conventional water treatment plants
based on tube settlers
• Pressure sand filtration
• Water softening
• Demineralization (DM)
• Ultra filtration (UF)
• Reverse osmosis (RO)
• Ultra-violet (UV) disinfection
• Ozonation
Technologies we offer…
• Activated sludge process (ASP)
• Sequential Batch • Sequential Batch Reactor (SBR)
• Membrane Bio Reactor (MBR)
Technologies we offer..
• Moving Bed Bioreactor (MBBR)
• Upflow Anaerobic Sludge Blanket (UASB)
• Electro coagulation Reactor• Electro coagulation Reactor
TECHNOLOGY OPTIONS FOR RESUE AND RECYLE OF DOMESTIC SEWAGE
Sr. No. Parameter Unit Generally observed in India
1 pH Value - 6.5 ~ 8.5
2 Total Suspended Solids (TSS) mg/l 200 ~ 300
3 Total Biological Oxygen Demand (BOD5 200C) mg/l 200 ~ 350
Raw Sewage Characteristics
3 Total Biological Oxygen Demand (BOD5 20 C) mg/l 200 ~ 350
4 Total Chemical Oxygen Demand (COD) mg/l 350 ~ 450
5 Oil and grease mg/l 10 ~ 30
6 Total Phosphorus (as N) mg/l 5 ~ 7
7 Total Kejeldal Nitrogen - 40 ~ 50
Treated water Characteristic
Sr. No. Parameter Unit
As per CPCB Norms
[Disposal Into Inland Surface
Waters – IS 2490]
Reuse/Recycle Norms
Reuse/Recycle
Norms as per US EPA*
1 Total Biological Oxygen Demand (BOD5 200C) mg/l < 30 < 5 < 10
2a Total Suspended Solids (TSS) mg/l < 100 <5 -
2b Suspended Solids (SS) NTU - - 2 NTU
3 Chemical Oxygen Demand (COD) mg/l < 250 <25 -
4 pH Value - 5.5 ~ 9.0 5.5 ~ 9.0 6.0 ~ 9.0
5 Oil and grease mg/l <10 <1 -
6 Ammonical Nitrogen (NH4-N) mg/l < 50 <1 -
7 Nitrate Nitrogen (NO3-N) mg/l < 10 < 1 -
8 Total Phosphorus (TP) mg/l < 2 < 1 -
PROSPOSED TECHNOLOGY SOLUTIONSSOLUTIONS
TECHNOLOGY OPTIONS
› Activated Sludge Process (ASP) followed by filtration &disinfection
› Moving Bed Bioreactor(MBBR) technology followed byfiltration & disinfection
› Sequential Batch Reactor (SBR) technology followed by› Sequential Batch Reactor (SBR) technology followed bydisinfection
› Membrane Bioreactor Technology (MBR) followed bydisinfection
ACTIVATED SLUDGE PROCESS FOLLOWED BY FILTRATION & DISINFECTION
Advantages
› Completely mixed aerobic system withSuspended growth of micro organisms(MLSS)
› Aeration tank followed by secondaryclarifier sedimentation unitclarifier sedimentation unit
› Settled sludge recirculation fromclarifier back to aeration tank
› Filtration
› Disinfection by Ozone, chlorine, UV etc.
MOVING BED BIO REACTOR (MBBR)Advantages of MBBR Technology
› Compact plant, consumes 50% of area required for ASP
› Employs specially designed & fabricated plastic neutrally buoyant media which remains in suspension/moving stage
› Bio film grows protected within engineered plastic carrierscarriers
› Media is 1% plastic & 99% Engineering
› Media life is long- 10-15 years, no media replacement required for 10-15 years
› High loading conditions can be tackled without any problems of clogging, No new construction required
› Suitable for both Industrial and Municipal wastewaters
SEQUENTIAL BATCH REACTOR (SBR) Salient Features of SBR Technology
› SBR is a cyclic ASP
› Provides highest treatment efficiency possible in a single step biological process with BOD < 10 mg/l & SS < 10 mg/l
› Operated in a batch reactor, eliminates drawbacks of continuous processes
› A batch reactor is a perfect reactor ensuring 100% treatment
› Modular forms ensures continuous treatment
› Complete process occurs in a single reactor, (all biological treatment steps sequential)
› Eliminates secondary clarifier need
STEPS IN SBR PROCESS
Step 1 : Fill & Aerate Mode Step 3 : Settling Mode
Step 2: Aerate Mode
Step 3 : Settling Mode
Step 4 : Decant Mode
MEMBRANE BIO REACTOR (MBR)
• Eliminate secondary clarification• Eliminate tertiary filtration• Reduced sludge production• Reduced footprint• Nutrient Removal• Absolute barrier to solids• Absolute barrier to solids• Easy to retrofit and expand existing
facilities• Easy to operate• Blend into surroundings
SCHEMATIC FLOW DIAGRAM FOR SEWAGE TREATMENT PLANT
Raw Sewage collection & Pumping Station
Coarse Bar Screen
Fine Bar Screen
DegrittingTank
Aeration Blowers
Was
ted
slud
ge
RawSewage
DegrittingChannel MBR
PreAnoxic
Process Aeration
Post Anoxic
Membranes
RAS
Parshall Flume
MBR BlowersDistribution
Chamber
& Pumping Station
Wasted Sludge sump
SBCFiltrate sump
Was
ted
slud
ge
Intermediate storage tank
Chlorinator
Cl2 gasCl2 gas Dew
ater
ed
slud
ge
Final Treated water
For REUSE
Sludge Thickener
TECHNOLOGY SELECTION CRITERIA
Technology proposed is based on following considerations:
› Lowest Foot print
› Greener technology, Low carbon emissions
› Easy to operate & maintain
› Flexibility of expansion in moduler form
› Lowest sludge generation & low sludge handling cost
› Expected Treated sewage quality with lowest capex & opex
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