Waste management is a serious concern globally, and Bengaluru is no exception. To mitigate the waste menace, and, the same put to good use, the Bruhat Bengaluru Mahanagara Palike (BBMP) has started generating electricity from waste. The corporation’s Yediyur area is setting a positive example for the city and others with a fully- functional biogas electricity production unit in place, that generates electricity from waste. The plan is to use this electricity to light up the lake area, seven parks in the ward, and other spots.
Hence, all the seven parks—Ranadheera Kanteerva, Sanjeevani Vana, Dhanmantri, Chandavalli Thota, Ambedkar, Chaitanya and Kalikamba—are now self-sufficient and being lit by the bio-electricity produced atthe ward.
At this point, BBMP generates 50 KW of electricity, which is being used to light up the seven parks and have plans to increase the generation to 250 KW which will be used to light up major spots of the area, including the model footpaths and 17 BBMP buildings, likecorporation schools, shopping complex, dialysis centre, etc. These model footpaths, stretched across more than a kilometre, have been equipped with catchment structures for rain-water harvesting.
On a regular basis, BBMP collects as much as five tonne of garbage every day, which is being used for this. The corporation also collects cow dung from several cattle-owners for an exchange of Rs 1,000 daily, and that is also used to produce electricity.
So, as per the process, the wet waste is segregated, and along with the cow dung, it is sent to the mixer machine. Later, the same is to a recycle chamber, slurry tanks, balloon digester and eventually intothe bio-gas container, where it is processed to create electrical power. The officials say that owing to this method, they have beenable to save almost Rs 15 lakh in power bills in the past few months.
The officials are hopeful that these few steps towards sustainable development will inspire the rest of the city to go green!