Karnataka - Bangalore   

Biogas conversion plant installed at Kodava Samaj

Special Correspondent

Bangalore: The Kodava Samaja, Bangalore, will now meet almost two-thirds of its cooking gas requirements from a new biogas conversion plant installed on its premises in Vasanthnagar.

"This plant can handle up to 150 kg of usable biodegradable waste each day and provide the equivalent of 6 kg of LPG. Both waste disposal and environmental concerns are met now," president of the Kodava Samaja K.M. Appaiah said on Saturday after demonstrating the biogas plant.

K.C. Achappa, general manager, Mail Hem Engineers Pvt. Ltd. of Pune, who made and commissioned the plant, said larger biogas plants fabricated by them were now in use at places like the Karnataka State Cricket Association, HAL Township and MTR Foods. The Maharashtra Government through its agency for renewable energy had promoted more such plants in Pune.

"In Vijayawada, we have installed biogas plants of 20 tonnes a day at the municipal vegetable market and a slaughterhouse. Because of the eco friendly biomethanation process, it is safe to be used in residential areas and unlike sewage treatment plants, it meets most local pollution control norms," Col. Achappa (Retd.) explained.

The biodegradable waste first goes through a shredding process, is then processed through a biogas digester and then comes out as usable gas. It has about 50 per cent energy as LPG. Research is going on to purify it further for possible use as CNG for automobiles, says Col. Achappa. One cubic ft of such biogas is normally equivalent in energy yield to 5 kg of LPG. The type of 150 kg/ day plant installed at the Kodava Samaja may cost Rs. 2.5 lakh, but the payback time may vary from 3 to 5 years depending on the capacity. With very few movable parts, maintenance is said to be minimal.

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