Journal
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
Volume 113, Issue -, Pages 357-366Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2016.05.009
Keywords
Co-composting; Organic substrate; Vermicompost bin (VCB); Vermicomposting reactor (VCR); On-site prototype system
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Vermicomposting is a biotechnological process that converts organic materials into compost through the combined activities of red worms and microorganisms. This research investigation involved two stages of experiments. The initial stage was the experiment of co-composting using vermicomposting pile and the second stage was to develop the novel prototype vermicomposting reactor to enhance the biodegradation activity of the co-composting. The utilization of the municipal solid waste through conversion via vermicomposting practice was performed with the on-site system operation, using the earthworm Eudrilus eginiae. Here, various co-substrates were investigated for the vermicomposting practice. They were dry cow dung (CD), kitchen waste(KW), sewage sludge(SS) and vegetable-market waste(VW), respectively. The seven different mixture ratios of MSW were investigated in this study; CD as single control (Tr1), CD:KW in 20:80 (Tr2), CD:SS in 20:80 (Tr3), CD:VW in 20:80 (Tr4), CD:KW:SS:VW in 25:25:25:25 (Tr5), CD:KW:VW in 20:40:40 (Tr6), and CD:KW:SS in 20:40:40 (Tr7). Chemical changes of these MSW at different mixture ratios during vermicomposting were analyzed. Compost derived from this process contained higher nutrients than general compost. The developed prototype vermicomposting reactor could produce the compost as required by the compost standard. This reactor can be applied to the co-composting process and practically generate value-added benefits to residential areas due to its high efficiency of vermiprocess. (C) 2016 Elsevier Ltd. All rights reserved.
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