热水解对北京城市污泥厌氧消化性能影响的研究  

Effect of Thermal Hydrolysis on Anaerobic Digestion of Sewage Sludge in Beijing

作　　者：韩玉伟[1] 马文瑾[2] 刘阳[3] 左壮[2] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京市污水资源化工程技术研究中心,北京城市排水集团有限责任公司,北京100044 [3]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京市污水脱氮除磷处理与过程控制工程技术研究中心,北京100124

出　　处：《中国沼气》2016年第6期9-17,共9页China Biogas

摘　　要：文章以北京城市污泥为研究对象,通过产甲烷潜力批式试验和完全混合反应器半连续小试和中试试验,结合国内外相关研究成果,从反应器的产气能力、有机物去除能力、系统稳定性和厌氧消化动力学等不同角度研究、评价热水解对北京城市污泥厌氧消化性能的影响。结果表明,污泥经过热水解后挥发性悬浮有机物溶解率达到26.4%,可溶性物质比例提高;在批式试验和半连续试验中,甲烷产率均有不同程度提升,最高达88.9%,有机物去除率均提高23%以上,同时消化系统稳定性得到增强。经厌氧消化动力学分析,复杂有机物的水解速率提高了37.2%,最大基质利用率提高了27%。In this study, the effect of thermal hydrolysis on anaerobic digestion of sewage sludge in Beijing was evaluated through batch experiment and lab, pilot-scaled semi-continuous complete mixed digester in view of the biogas production a- bility, the system stability, and the dynamic of anaerobic digestion. The result showed that, after the thermal hydrolysis, the dissolution rate of suspend volatile organic matter of the sewage sludge could reach 26.4%, and the soluble substance increased. In both batch and semi-continuous experiment, all had some extent of biogas production increase with highest in- creasing rate of 88.9%. Tthe organic removal rate increased over 23%, and the system stability was strengthened. The dy- namic analysis showed that the hydrolysis rate of complex organic compounds increased by 37.2%, the maximum substrate utilization rate increased by 27%.

关 键 词：污泥 热水解 厌氧消化 反应器运行评价 

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]