REUSE & RECYCLE OF TREATED SEWAGE : A SUCCESSFUL MODEL

Surat Municipal Corporation

5th June 2021 – World Environment Day

Background

SURAT 8th Largest City

4.46 million (2011 census)

~ 6 million (current estimates)

474.52 sq.km

Area under

jurisdiction

Fastest Growing City Globally

Oxford Economic’s Global Cities 2030 Report

Economic Capital of Gujarat

Hub of Diamond & Textile Industries

2

City Growth

60% to 80%

Decadal Growth

(since 4 decades)

• Surat dates back to 300 BC

• Municipality Established in 1852

• Municipal Corporation Formed in 1966

• Hazira Industrial Estate near the City

• An Environment with Peace, Alliance & Unity

• Admin Zones : 8

• Election Wards : 30

Surat also known as…

Diamond City

Textile City

Bridge City

Solar City

40% of nations total man-made

fabric & 28% of nation’s total

man-made fiber production

Declared as SOLAR CITY

by Ministry of New &

Renewable Energy

9/10 Diamonds in the world

are cut and polished in Surat

Over 113 bridges to ease

commute

Green City Over 200 public parks &

gardens along with Nature Park

& upcoming Biodiversity Park

Surat – One of the Best City

Declared 2nd Cleanest City of India in World’s

largest cleanliness survey of 4242

cities

5th best city of India based on EoL which evaluates the

quality of life

2nd Best City of India as per Municipal

Performance Index parameters

Best Performing City

2nd Cleanest City

5th Best City

2nd Best City

For showing great momentum in

Implementation of Projects under

Smart City Mission

EoL

2020 MPI

2020

Water Supply 8 WW, 36 WDS, 3600 km. T&D network,

1285 MLD gross water supply (98.85% Coverage)

Drainage 11 STPs, 61 SPS, 3 TTP & 1997 km. Sewerage Network

Storm Drainage 1020 km.

Roads Total 3988 kms

CC Road 241 kms

Asphalt Roads 3469 kms

Polymer Roads 170 kms

Micro Surfacing Road 86 kms

Plastic Waste Bituminous Road 22 kms

Bridges Total 113 (+8 WIP)

River Bridge 13 (+ 3 WIP)

Creek Bridge 61

Fly over Bridge 27 (+ 1 WIP)

Railway Over Bridge & Under Bridge 12 (+ 4 WIP)

Street Lights 1,44,468

Physical Infrastructure

Schools 329 (MSB) 1.6 lakh students 18 SUMAN 8300 students

Hospitals 2 [SMIMER-1520 beds with Covid Facility & Maskati-120 beds]

Health Centers & Maternity Homes 52 [7 Community Health Centers & 19 with maternity home]

Mobile Dispensaries 5

Medical College 1 [200 Undergraduate & 124 Postgraduate]

Aanganwadi 1092

Gardens 207

Swimming pools 16

Sports Facility 10

Community Halls & Party Plots 57

Library & Reading Rooms 3 Libraries & 106 Reading Rooms

Fire Stations 16

Social Infrastructure

Sewage Management

Surat Municipal Corporation

Sewerage System

• Coverage : 191 sq.km. (i.e. 94 % * of present habitable area of @ 204 sq.km.)

• Population catered : 99.5 % * of present population

• Sewage Collected & Treated : ~ 957 MLD

• Treated Waste Water Recycled & Reused : 204.68 MLD

• Length of sewer network : > 1997 km

• Sewage Pumping Stations : 61 Nos (2038.50 MLD)

• Sewage Treatment Plants : 11 Nos (1273 MLD)

• SCADA system for operations monitoring and efficiency enhancement

Liquid Waste Management Activities

Tertiary Sewage Treatment Plant

Recycle, Reuse of Sewage Water through Tertiary Treatment

• Tertiary treatment of secondary treated sewage and to generate Industrial Grade Water for supply

of Industrial Grade water to Sachin & Pandesara Industrial Estate.

OBJECTIVE

Recycle / Reuse of waste water

Contribution towards reducing the dependency on conventional resources of water.

TECHNOLOGY

• Sand / Disc Filtration

Ultra-filtration (UF)

Reverse Osmosis (RO)

Activated Carbon Filter (ACF)

PROJECT CONCEPT

Recycle, Reuse of Sewage Water through Tertiary Treatment – A Success Story

More than 450 dyeing & printing houses set up in and around Surat city.

Pandesara Industrial Estate is a major textile cluster with more than 125 dyeing & printing houses - bulk

water users.

Surat Municipal Corporation started supplying potable water for industrial purpose since 1998.

To meet the increasing water demand of Industry and to reduce the burden on water resources primarily

required for domestic purpose, SMC initiated the idea / option of using treated waste water to satisfy

industrial demand.

With the support of user industries and State Government, SMC had built 40 MLD Tertiary level Waste

Water Treatment Plant, which is in successful operation since 2014.

After success of first largest operational tertiary treatment plant, Pandesara Industries demanded

additional TTP water as process water for their industries and hence additional 40 MLD TTP has been taken

up as replica under SMART CITY MISSION at Dindoli.

Recycle, Reuse of Sewage Water through Tertiary Treatment – A Success Story Looking to assured Quantity & Quality of Treated Waste water, Industrial setup adjacent to the city has also

come forward to get 35 MLD Treated waste Water from SMC by inspiring from successful implementation

of Tertiary Treatment Plant for Pandesara-Industries.

The project is successfully commissioned & 35 MLD Treated Waste Water to Sachin GIDC is being supplying

to Sachin GIDC since November 2020.

1 MLD capacity TTP is taken up as pilot project at Kavi Kalapi Garden, West Zone of Surat.

1 MLD capacity TTP at Kansa Nagar Lake Garden.

Treated sewage of about 9 to 10 MLD is being reused for different purposes like Gardening, Road Divider

Plantation, Land Fill Site, Dual Flushing System etc.

Government Policy on Recycle and Reuse of Treated Waste Water To promote the reuse of Treated sewage for different purposes of Gardening, Industrial Reuse, Tanker

Filling, Lake restoration, Flushing, Construction reuse policy Government of Gujarat introduced policy for

Treated Waste Water reuse.

vision to maximize the collection & treatment of generated sewage and reuse of treated wastewater on a

sustainable basis, thereby reducing dependency on freshwater resources.

The reuse of treated wastewater can become a source for revenue generation. The policy aims to achieve

ultimate goal of reuse of treated wastewater fully by the year 2030.

Objectives of Policy

• To reach minimum 80% coverage and collection of sewage in all municipal towns.

• To reach a level of 100% treatment of collected sewage as per the prescribed standards.

• To reuse at least 25% of total freshwater consumption from TWW within the time limit set under

policy by every municipal body.

• To reuse 70% of TWW by 2025.

• To reuse 100% of TWW by 2030.

Tertiary Sewage Treatment Plant - Waste water Recycle - Reuse Project

• Reduced diversion of drinking water for non-potable purposes.

• Conserve valuable ground water resources for future generation.

• Facilitates recycling of wastewater - an environmentally sound and progressive advance practice.

• Assured resource for Pandesara Industrial Estate.

• Enabled SMC to reduce pressure on conventional water resources in the city.

• Guaranteed revenue generation for Surat Municipal Corporation.

BENIFITS

Tertiary Sewage Treatment Plant : Successful Financial Model

Capacity of the plants : 115 MLD

Commercial Operation : Year 2014 (Phase – I) – 40 MLD

: Year 2020 (Phase – II) – 75 MLD

Capital Project Cost : Rs. 314.39 crores

[Financial support under Swarnim Jayanti Mukhya Mantri Sherhri Vikas Yojna (GoG), SMART CITY MISSION

(GoI) & Contribution from Industries]

• Operation & Maintenance Cost : Rs. 300 crore (For 10 Years)

Total Revenue Generated till May 2021 : Rs. 213.77 Cr

Total Recycle water Supply to Industries till May 2021 : 83946.31 ML

Total Tertiary Treatment Plant Capacity : 115 MLD (40+35+40) plus 10% additional capacity on demand.

Started with Rs. 18.20 per KL in year 2014, rate increased yearly based on actual increase in O & M cost &

RBI indexation, present rate of Treated Waste Water is @ Rs.32 per KL.

Expected Revenue Generation (2021-22) : @ Rs. 140 Cr.

Replicability of SMART Initiative

Considering the amount of sewage that is being currently treated and based on the recent

Policy of Government of Gujarat on ‘Reuse of Treated Waste Water’, The Surat Municipal

Corporation has proposed to replicate the project to supply industrial grade water to industries

located nearby Surat City.

The plan is to reuse the treated wastewater for the industrial use for non-potable water.

Based on the location of industries in and around Surat City and location of various sewage

treatment plants in the city, the complete area has been zoned into mainly three clusters viz.

Bhesan Cluster, Dindoli Cluster and Bamroli / Karanj Cluster.

Details regarding the demand of various industries have been collected from the industries and

accordingly, Detailed Project Report & Proposal has been submitted to Government of Gujarat

for approval.

Presently more than 20% of sewage quantity generated from the city is being recycled &

reused and planned to reuse 70% of total sewage by year 2025.

Reuse & Recycle of Treated Waste Water

Sr. No. Name of STP/TTP Reused/ Recycled

(MLD) Type of Use

A Projects under planning

1 Bhesan - Asarma - Variav

Kosad STP

313 Hazira industries (Bhesan Cluster)

17 Utran Gas Based Power Plant, GSECL.

2 Bamroli - Bhatar STP 125 Industries in Palsana

3 Sheth Navinchandra Mafatlal

Garden, Udhana Zone 1.0

Gardening

4 Sidhdharaj Jaysingh Garden,

South west Zone 1.0

Gardening

Total : 457 MLD

B Present sewage quantity

being recycled 204 MLD

Industrial, Land fill Site, Tanker Filling

Station, Gardening etc.

Grand Total (A + B) : 661 MLD

Planned to reuse 70% of total sewage by year 2025.

Thank You …

Surat Municipal Corporation