Page 57 - HUDCO Award for Best Practices - 2024

THEME: SANITATION

infrastructure work.

The project design takes into consideration future demand of water and expansion to double plant capacity. All these points make
this project economically, environmentally & socially self-sustainable.

TRANSFERABILTY
Post-initiative scenario is as per the desired objectives of the project. After the initial trial-run period of 3 months, now plant has been
successful in delivering the desired quality and quantity of recycled & treated water supply for intended industrial reuse.

Revenue income from the water supply is also in line with the requirement. The rate of potable water is Rs.23/- per kl and the base
rate of tertiary treated water was Rs.18.20/- per kl with indexation base rise every year. The weighted average rate is now being
considered as per the actual consumption. Meter reading, checking, monitoring & surveillance activities are performed regularly
departmentally. Computerized bills are generated and issued bi-monthly.

The purpose of tertiary treatment is to provide a final stage of sewage treatment so as to raise the effluent quality before it is discharged
to the receiving environment (sea, river, lake, ground, industrial re-use etc.). More than one or in combination of several technologies,
tertiary sewage treatment process may be used at any treatment plant to achieve the desired treated effluent parameters.
Industrial growth is the need of our nation today and by recycle & reuse of tertiary treated water will not only be able to boost
the growth of water-based industries and thereby employment & GDP of our country but also contribute to maintain the green
environment for future generations.

LESSONS LEARNED

The motivation behind this initiative was:
1) To conserve the conventional water resources and use it for domestic purpose.

2) Reduce the quality of treated water to be discharged in to nearby water bodies.

There are certain points which we learned from establishment of this plant which are discussed as below:

1. The quality and quantity of sewage reaching to STP should not have much variation/fluctuation, particularly there should not be
any illegal discharge of industrial waste in to sewage and if it is found, it should be first addressed.

2. Inlet quantity to tertiary should be continues supply and for that the system of buffer tank is required.

3. There should be uninterruptible power supply to the plant for continuous functioning of the plant.

4. Operation & Maintenance of the plant (long term) should be with the agency who has set up the plant.

5. The proper treatment of rejected water after Tertiary Treatment shall be planned.
6. The secondary sewage treatment plant should be so operated that the outlet parameters of secondary treated water match with
the acceptable inlet parameters of Tertiary Treatment Plant and for that comprehensive Operation & Maintenance up to Tertiary
Treatment Plant should be given to single agency.

7. Staff training is must as on-site components like UF/RO are imported from other countries. So as to avoid dependency and
inhouse capability should be developed.
REFERENCES

Sr. No. Title of Article Publication title Date
1. Smart City Award Sandesh, Surat 26 August 2023
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2. India’s Smart City Award-2022 Sandesh, Surat 8 October 2023
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