Sespl capablity and technology options for reuse and recyle of seweage

Presentation by Sauber Environmental Solutions Pvt. Ltd

Ahmedabad

Comparison of Various Technology Options for Reuse and Recycle of Sewage

AhmedabadEmail: [email protected]

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