Page 55 - HUDCO Award for Best Practices - 2024

THEME: SANITATION

MAIN FOCUS OF THE BEST PRACTICE

a) Reuse & Recycling of wastewater: an environmentally sound & advance practice.

b) Conservation of valuable ground water resources for future generation.

c) Guaranteed revenue generation for Surat Municipal Corporation.
ESTABLISHMENT OF PRIORITIES

The solution to the problem depicted in the “Situation before the initiative” was derived by implementation of project of Tertiary
treatment of secondary treated sewage and to recycle, generate and supply Industrial Grade Water to Pandesara Industrial Estate.

The Pandesara Industrial Estate is just 10 Km away from the Sewage Treatment Plant at Dindoli. Hence, SMC decided to set up
an additional 40 MLD capacity Tertiary Treatment Plant to treat secondary treated water from Bamroli as well as Dindoli Sewage
Treatment Plant to supply Industrial Grade Water to Pandesara Industrial Estate.

For the mutual benefit of SMC & Pandesara Industries, both the parties again executed MoU in year 2013-14 to supply blended
(tertiary recycled & treated plus potable grade of water mix) water for the Industrial use and potable grade of water for Industrial
Employees and workers etc.
MOBILISATION OF RESOURCES

Looking to the technical experience available with SMC, having experience of operating more than 1,655 MLD water and sewage
treatment plants and the financial model which can generate revenue for SMC in long terms, SMC decided to take up the project
by own funds and also operate the plant with own funds, whereas regular income from the industry emerged by selling tertiary
treated water to industries on agreed terms. However, the structural and process design was vetted through technical and academic
institutions in Surat. Third Party Inspection agency was also engaged for quality Control. The project was funded under SMART
CITY MISSION of Government of India.

THE PROCESS

The Water demand of Pandesara industries is approximately 90–100 MLD, comprising about 80 – 85 MLD of process water requirement
and 10-15 MLD of potable quality water demand. Of the total demand, nearly 55 MLD is met through SMC potable water supply. The
remaining demand is met through private sources including bore wells and water tankers. Furthermore, the Industrial units do not
require quality of water as pure as potable water for industrial use, hence considering the acceptable parameters for industrial grade
water, SMC had set up a 40 MLD capacity Tertiary Treatment Plant to treat secondary treated water from Bamroli and 40 MLD at
Dindoli Sewage Treatment Plant to supply Industrial Grade Water to Pandesara Industrial Estate.

Treated industrial grade water from the outlet of TTP is then supplied to existing underground storage reservoir of 450 Lakh liters
capacity at Pandesara water distribution station. The stored water blended with potable grade of water mix with required parameters
is then supplied to industries for non-potable use.

For this new system SMC has made some necessary changes in the existing pipeline network to cater to potable water supply of about
5-10 MLD for Industrial Employees and workers etc.

The Project:

Design, Build & Operate (for 10 years), 40 MLD capacity Tertiary Treatment Plant to treat secondary treated water from Dindoli
Sewage Treatment Plant to generate Industrial Grade Water for Pandesara Industrial Estate, Surat.

The Project Features:
• Capital Project cost : Rs. 139.07 Crore

• Operation & Maintenance Cost for 10 Years : Rs. 98.26 Crore
• Project duration : 24 Months

• Capacity of Tertiary Treatment Plant : 40 MLD

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