Coimbatore set to generate 200 lakh litres of water daily from sewage
Updated: May 01, 2013 01:58:12pm
Falling under the purview of the Jawaharlal Nehru Urban Renewal Mission (JNNURM), raw sewage from the city will be treated using modern technologies to generate water.
The technology is designed to provide the city with the option to reclaim water for reuse. At the treatment plant, water will be transformed into stream-quality, before it is released.
Although unfit for drinking purposes, it has been established that the treated water will be of a standard quality, fit to be used in industries, agriculture purposes, washing of clothes, vehicles and for development of greeneries.
The Corporation is now ready to sell treated water at the Sewage treatment plant at Ukkadam and has invited offers from firms, organizations and single entities to buy the treated water.
Built at a cost of Rs 55 crore under the JNNURM scheme, the Ukkadam plant has the capacity to treat 70 million litres of sewage a day.
Also, the Coimbatore Corporation has taken measures to address issues related to waste management. In fact it has approved in principle to establish a plant on a trial basis to covert waste into energy at its old dump yard in Kavundampalayam, according to media reports.
Speaking about the initiatives taken at the Arcot Municipality, the Commissioner for Municipal Administration who was directed to establish the plant suggested that municipalities and Municipal Corporation go in for plants with the capacity to process three metric tonne, five metric tonne or 10 metric tonne capacity waste.
The local bodies, he added could use the power generated to power their street lights and thereby save on electricity charges.
The Commissioner also said that in Arcot, a suburb in Vellore city, the local body collected waste from vegetable markets, restaurants, lodges, hospitals, abattoirs, fish, meat and poultry shops and other places and used the same in bio-gas plants, where by using the bio-methanation process, as many as 280 units of power were generated.
The Corporation could use a similar approach to gather degradable, wet waste from markets, restaurants, wedding halls, and other places to generate power.
Adapting a decentralised approach, the power generated from such plants could be used at the local level.
A rough estimate suggests that the 30 per cent of 800 tonnes which is 240 tonnes comprises vegetable/ wet/ degradable waste that the Corporation collects each day.
If the Corporation sends wet waste for power generation, only dry degradable/ non-degradable would reach transit stations in Vellore, where the contractor in charge of executing the solid waste management programme would find it easy to process the waste. This would go a long way to improve waste management.
According to sources, a 10 tonne bio-gas plant could cost around Rs 1.50 crore. (SD/KNN)





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