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Effects of microbial inoculation on composting of household organic waste using passive aeration bin

Journal: International Journal of Recycling Organic Waste in Agriculture (Vol.3, No. 4)

Publication Date:

Authors : ; ;

Page : 113-119

Keywords : Household organic waste Passive aeration bin Inoculation Mature compost Commercial inoculants;

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Abstract

Background The effects of microbial inoculation with two commercial inoculants and mature compost on the composting of household organic wastes were investigated using five 200-L passive aeration compost bins. Food scraps and dry leaves (1.6 kg total) with a ratio of 1:0.14 (wet weight) were added to each bin once a day, for 60 days, and then further composted for an additional 94 days. The temperature in each bin was recorded daily. Weekly to biweekly, a composite sample of the compost from each bin was analyzed. Results The C/N ratios of composts in the un-seeded and seeded bins stabilized at 81 days and 67?74 days, respectively. The highest volatile solid mass reduction was achieved in the bin seeded with 5 % mature compost. Conclusions The study revealed that it might not be necessary to add commercial inoculants to facilitate composting of household organic waste. Mature compost can be used as a seed starter to improve composting.

Last modified: 2015-11-02 16:16:27