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标题：Eﬀect of Passive Aeration on Fed Batch Composting of Organic Waste in Compost Bioreactors
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作者：Isara Prohmdetbun ; Thares Srisatit
期刊名称：EnvironmentAsia
印刷版ISSN：1906-1714
出版年度：2020
卷号：13
期号：1
页码：140-149
DOI：10.14456/ea.2020.13
语种：English
出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：The objective of this research is to determine the eﬀect of air on the degradation of food wasteusing compost bioreactors with diﬀerent passive aeration. The bioreactor was made of 200LPE plastic container. There were 5 bioreactors identifed by diﬀerent ratios of air volume as0%, 2.3%, 3%, 4.3% and 5.7% of bioreactors volume or 0, 1, 2, 4 and 6 PVC pipes of diameter1¼”, respectively. The Fed Batch Composting (FBC) method was used, adding for once pera bioreactor at amount 85 kilograms of materials. The experiment was also subdivided into 2types: bioreactors with microbes (PD2); and those without microbes. Temperature, moisturecontent, and pH were measured. Compost samples were analyzed for their germination index(GI) and quality, then compared with the Thailand compost standards. The research outputshowed that the optimum air volume for composting was 4.3% of bioreactor volume, or 4pipes. The composting time was 9 days with the highest temperature of 58-59 °C and thetemperature was held constantly for 18 days. The organic waste decomposition and curingtook a total of 30 days, with a GI value between 85% and the quality of the fertilizer outputcomplied with the Thailand compost standard. The main minerals of the compost were N, Pand K, which were 1.57%, 0.87% and 0.75%, respectively. There was no statistically signifcantdiﬀerence between the outputs generated from the compost with and without addition of PD2.
关键词：Food waste composting; Passive aeration; Fed batch composting