植木鉢と園芸土を利用した生物学的簡易生ゴミ処理

概要

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A simple composting system for the disposal of household organic waste was developed using commercially available flowerpots and garden soil. The system consisted of three flowerpots(14.3-l capacity each)packed with garden soil as the primary treatment reactors and one flowerpot(20.2-l capacity)as the secondary reactor. When the primary reactors were operated in sunlight at a waste loading rate of 0.2-0.3 kg・d^<-1>・reactor^<-1> the amount of biowaste added was reduced to approximately 10% on a wet-weight basis over a period of one month. The moisture content of the compost soil under this condition was 40-50% and the average core temperature in the reactors was 44℃ in summer and 32℃ in winter. The total direct count, plate count of aerobic chemoorganotrophs, and biomass-carbon in the primary reactors were 3.8-8.4×10^<-11>・g(dry soil)^<-1>1.4-5.7×10^<-11> CFU・g^<-1>and 75-121 mg C・g^<-1> respectively. Quinone profiling revealed that gram-positive bacteria with a high G+C content, i.e., members of the class Actinobacteria, constituted a significant proportion of the total microbial population in the primary reactors. The results indicate that this biowaste treatment system utilizing flowerpots may be useful for disposing of the organic waste from a family of 3-4 people.
公益社団法人日本生物工学会の論文
1999-12-25