Tambaram Corporation has invited tenders from contractors for the construction, operation and maintenance of plant to treat wet waste and generate bio-CNG.

The plant with a capacity to handle 150-tonne per day will be established in Vengadamangalam at a cost of Rs 44.43 crore.  

“The bio-CNG plant will be ready next year,” said the corporation’s chief engineer, K Pandurangan.

Tambaram produces around 400 tonnes of total waste daily, and wet waste forms half of it.

The latter will be sent to the bio-CNG plant for treatment, he added. "The bio-CNG generated will then be liquefied, bottled, and sold to restaurants and gas stations," said the engineer.

The five microcomposting centres' capacity to decompose wet waste is not sufficient. A couple of facilities in East Tambaram and Selaiyur are not working.