Biogas Production from Kitchen Waste Using Flexible Balloon Digester

摘要

Flexible balloon biogas plant based on kitchen waste was designed and installed for environmental-friendly disposal of around 250 kg waste generated per day in the kitchen of student mess at Sainik School, Chittorgarh, Rajasthan. The digester balloonhaving volume of25 m3 was fabricated with high tenacity rubberized nylon fabric coated with hypalon on outer and neoprene on inner surface. A stirring unit was provided for mixing the digested slurry inside the digester with the compressed biogas. Average biogas generated was 0.0439 m3.kg~' dry matter having methane and carbon di-oxide about 67.70% and 32.30%, respectively.