预处理和菌种驯化对剩余污泥连续厌氧消化的影响  

Effect of Pretreatment and Inoculums Domesticating on Continuous Anaerobic Digestion of Waste Sludge

作　　者：唐治[1,2] 尹小波[1,2] 周正[1,2] 耿宇聪[1,2] 邓雅月 李强[1,2] 

机构地区：[1]农业部沼气科学研究所,成都610041 [2]农业部农村可再生能源开发利用重点实验室,成都610041

出　　处：《中国沼气》2016年第5期12-16,共5页China Biogas

基　　金：公益性行业(农业)科研专项经费(201303101-2A)

摘　　要：为了提高剩余污泥厌氧消化的转化效率,文章探讨碱/超声联合预处理和菌种驯化对污泥厌氧连续消化的影响。实验结果表明:碱/超声联合预处理可以提高污泥的可生化性,污泥的SCOD增加了9742.9 mg·L^(-1),在后续的厌氧消化中甲烷产量提高20%;与原始菌种相比,驯化菌种可提高产甲烷量6%;污泥连续厌氧消化的最适有机负荷可达到2.3 kg VS·m^(-3)d^(-1),水力停留时间缩短为20 d。In order to improve the anaerobic digestion efficiency of sludge, the effect of alkaline and ultrasonic pretreatment and inoculums domesticating on continuous anaerobic digestion of waste activated sludge were studied in this paper. It is demonstrated that the optimum organic load of sludge anaerobic digestion was 2.3 kgVS · m^-3d^- 1, and that of hydraulic retention time was 20 d. Alkaline and ultrasonic pretreatment could improve the biodegradability of the sludge, increasing the SCOD of the sludge by 9742.9 mg · L^-1 and the yield of methane by 20%. The domesticated strain could increase the amount of methane production by 6% comparing with the original strain.

关 键 词：污泥 碱/超声联合预处理 菌种驯化 连续厌氧消化 

分 类 号：S216.4[农业科学—农业机械化工程] X705[农业科学—农业工程]