文章基本信息

标题：Anaerobic treatment and methane production of two dairy wastes in a Moroccan cooperative
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作者：Lhanafi S. ; Et-taleb S. ; Elhaouti R. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：4
页码：1469-1475
出版社：University of Mohammed Premier Oujda
摘要：This study is focused on anaerobic treatment and methane production of two effluents generated by a dairy cooperative from Morocco: Pure Whey (PW) and Loss in Dairy Product (LDP). Physicochemical characterization showed the richness of these effluents in organic matter that reached 97% for LDP and 87% for PW. In addition microbiological analysis showed that the both effluents contained several microorganisms (total germs and lactic acid bacteria). However, the total coliforms were presented only in LDP and the Sulphate-reducing bacteria were absent in both substrates. The Biochemical Methane Potential (BMP) assay was done according to three organic loads (100%, 50% and 25% corresponding to 120, 60 and 30ml of substrate) at 38 ± 1°C. The results showed that the low loads (25% and 50%) gave respectively the most important CH4 yields for the two substrates PW: 25.546 mlSTP/gVS and LDP: 79.1 mlSTP/gVS. The reduction of the volatile solid (VS) and total solid (TS) was over than 80% for these two effluents. This reduction implicates a decrease of organic pollution contained in these wastes.
关键词：Pure whey; Loss in dairy product; Characterization; Methane production; Organic pollution