Lublin University of Technology, Faculty of Environmental Engineering, Lublin, Poland.
Bioresour Technol. 2011 Feb;102(3):2563-71. doi: 10.1016/j.biortech.2010.11.105. Epub 2010 Nov 30.
This study examines the co-digestion of intermediate landfill leachate and sewage sludge from a municipal wastewater treatment plant. Application of leachate as a co-fermentation component increased the concentrations of soluble organic compounds (expressed as total organic carbon), ammonium nitrogen, and alkalinity in the digester influents. The biogas yield obtained from the co-fermentation of a 20:1 sewage sludge: intermediate leachate mixture was 1.30 m(3) per kg of removed volatile solids (VS), while that from a 10:1 mixture was 1.24 m(3) per kg of removed VS. These values exceeded the biogas yield for the sludge alone by 13% and 8%, respectively. The leachate addition influenced the proportion of methane to a minor extent. Increased methane yields of 16.9% and 6.2% per kg of removed VS were found for the two sewage sluge:intermediate leachate mixtures, respectively.
本研究考察了中间垃圾渗滤液与城市污水处理厂污泥的共消化。渗滤液作为共发酵成分的应用增加了消化器进料中可溶性有机化合物（以总有机碳表示）、氨氮和碱度的浓度。从 20:1 的污泥：中间渗滤液混合物共发酵中获得的沼气产量为每千克去除的挥发性固体（VS）1.30 立方米，而从 10:1 的混合物中获得的沼气产量为每千克去除的 VS 1.24 立方米。这两个值分别比单独的污泥的沼气产量高出 13%和 8%。渗滤液的添加对甲烷的比例影响很小。对于两种污泥：中间渗滤液混合物，每千克去除的 VS 分别发现甲烷产量增加了 16.9%和 6.2%。
