Mixed organic waste composting using rotary drum composter
by Ajay S. Kalamdhad, A.A. Kazmi
International Journal of Environment and Waste Management (IJEWM), Vol. 2, No. 1/2, 2008

Abstract: A combination of vegetable waste, cattle manure and saw dust was utilised for high rate composting in a household rotary drum composter. It was found that temperature remained above 55°C for a period of two days, Faecal Coliforms and Faecal Streptococci decrease from 7.5 × 10⁸ to 5 × 10² and 1.5 × 10⁷ to 5 × 10³ bacteria/g, respectively. Negligible VFAs production indicated full aerobic conditions. Nitrification occurred after sixth day i.e., when temperature dropped below 40°C. BOD/COD ratio decreased up to 12 days and remained stable thereafter, indicating the stability of compost in terms of biodegradation.

Online publication date: Sun, 03-Feb-2008

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