The Delhi Jal Board (DJB) will rope in private firms to purchase raw biogas generated during sewage treatment, as the water utility looks to commercially utilise gas produced from sludge digestion rather than allowing it to be flared or left underutilised, senior DJB officials said.
The project covers the Keshopur Phase-I sewage treatment plant (STP), which is being upgraded from 12 million gallons per day (MGD) to 18 MGD, and the Yamuna Vihar Phase-II STP, which has a capacity of 15 MGD (68 million litres per day). DJB operates 37 Sewage Treatment Plants across Delhi. The city generates nearly 1,000 Million Gallons per Day (MGD) of sewage every day, while the Capital’s sewage treatment capacity currently stands at 814 MGD.
The agencies are likely to be hired by November, an official said.
To begin with, the DJB will initiate this process at two of its 37 sewage treatment plants for which expressions of interest have been invited.
