A pilot experiment was carried out to investigate effects of different aera- tion rates (A: 0.01, B: 0.02, C: 0.03, and D: 0.04 m~(-3).min～(-1)) on decomposition of organic waste and enzymatic activities during the composting process in a 100L bioreactor. Compared with lower aeration rates (A and B), higher aeration rates (C and D) could ef- fectively improve the composting process in terms of promoting temperature and oxygen consumption, lowering C/N ratio, and significantly increasing all enzyme activities includ- ing those for protease, urease, dehydrogenase, β-glucosidase, and cellulase during the composting period.
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