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Comparative analysis of organic and chemical fertilizer production energy consumption, input cost and environmental benefit:Sewage sludge composting as example
Author(s): LIU Hongtao, CHEN Tongbin, ZHENG Guozuo, GAO Ding, LEI Mei
Pages: 1000-
1003
Year: 2010
Issue:
4
Journal: Ecology and Environment
Abstract: 针对目前国内肥料生产和施用现状,分别从能耗、成本和污染物排放等三个方面对有机肥和化肥进行比较分析.化肥生产呈现高能耗和高污染排放,而有机肥则表现为低能耗、无污染的特点,同时还可消纳废弃物,减轻污染负荷.从投入成本上分析,化肥相对于有机肥具有一定优势,其单位面积和折纯养分投入分别是有机肥的53%和26%.有机肥相对于化肥,其污染物排放负荷很低.从节能减排和降低投入的角度,提出支持基于废弃物资源化的有...
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