Hyderabad: With more emphasis being laid on recycling waste water and reducing the overexploitation of groundwater, efforts are being made to establish about 55 sewerage treatment plants (STPs) in areas extending up to Outer Ring Road (ORR) limits in Hyderabad city. A master plan has been drafted by a private consultancy recently and submitted to the Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB), which will be taken up with the State government for final approval.
The area of 1,451 sq.km in Hyderabad city has been divided into 10 catchment areas for setting up the STPs and priority has been given for preventing pollution of major tanks and other water bodies in these areas. “A detailed study has been conducted to identify sewage water being generated in each area and proposals have been mooted to establish the STPs accordingly. The location and capacity of the STPs besides requirement of necessary land, also has been submitted to the government,” an official of the Municipal Administration and Urban Development Department told Telangana Today.
At present, there are 20 STPs with a capacity of over 700 MLD in the city, treating about 50 per cent of the total sewage being generated in the city. The remaining waste water is let into drains and nalas without any treatment.
Hence, the State government plans to set up STPs with over 1,000 MLD capacity in addition to the existing 700 MLD capacity. Of the 20 STPs, majority of the water amounting to 592 MLD is treated at four facilities located at Amberpet, Nagole, Nallacheruvu and Attapur. Rest of the water is treated at Khairtabad, Begumpet, Mir Alam Tank and other treatment plants.
In addition to the conventional facilities, the report suggested setting up vertical STPs on nalas to treat the sewage water at sites. “The objective is to decentralise the treatment of dirty water which is otherwise emanating foul smell while being diverted to select STPs,” the official said.
The STPs will not only curb pollution at different locations, but also supply treated water to non-domestic purposes like industrial usage, development of greenery and construction work. The officials stated that the STPs will be developed into a sustainable model to generate revenue through supply of treated water to various purposes and use the income for their operations.
If successful, the State government wants to replicate the model in six other municipal corporations and 135 municipalities to reduce water pollution as well as usage of groundwater. At present, only five STPs are functional in the rest of the State, including one in Bhadrachalam, two in Ramagundam and two in Mancherial.