Anaerobic handling has been used indefinitely, seemingly forever, to isolate various substrates, including sewage sludge. We agree that an Anaerobic Digester System is the best option because it generates electricity by burning methane in a gas engine. Anaerobic retention, which is theoretically possible in India, is most likely to occur at temperatures above 25°C. We are currently wo... https://woggroup.com/industrial-process-water.html