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工程科学与技术:2014,46(2):182-186
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厌氧生物滤池在生活污水厌氧-好氧组合处理工艺中的应用
(1.东南大学 能源与环境学院;2.无锡太湖水环境工程研究中心)
Anaerobic Filter Reactor in a Compact Treatment System for Rural Domestic Wastewater Removal
(1.School of Energy & Environment,Southeast Univ.;2.Eng.Research Center of Taihu Lake Water Environment)
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投稿时间:2013-10-24    修订日期:2014-01-08
中文摘要: 根据农村生活污水的特点及选择处理工艺应考虑的因素,构建了适应分散式生活污水处理要求的“厌氧消化—缺氧—好氧—人工湿地”组合工艺,通过示踪试验及物料衡算的方法研究了厌氧生物滤池的净化机理。在此基础上,系统阐述了厌氧生物滤池反应单元在“厌氧消化—缺氧—好氧—人工湿地”工艺去除化学需氧量(COD)的作用,着重分析了水力停留时间(HRT)对厌氧生物滤池处理效果、产气效能、运行特性的影响规律。研究结果表明,厌氧生物滤池单元经过65 d的中低温驯化后稳定运行,在HRT为72 h条件下,厌氧系统污水COD去除率约37.8%。与跌水接触氧化和人工湿地工艺联用后,平均出水COD 39.3 mg·L-1,平均去除率为86.2%,满足《城镇污水处理厂污染物排放标准》(GB18918—2002)中COD项目的一级A标准。
Abstract:A pre-production-scale investigation was accomplished to the combined “anaerobic digestion-anoxia-aerobic-constructed wetland”system.The mechanism of anaerobic filters was investigated through the tracer study and mass balance calculation,the CODCr removal efficiencies of anaerobic filter was analyzed, and the effect of hydraulic retention time (HRT) on the efficiency and operational characteristics of the large height-diameter ratio anaerobic filter reactor were evaluated.The results revealed that the anaerobic reactor started successfully after 65 days at medium-low temperature.During the stable running period,when the hydraulic retention time (HRT) was 72 h,the removal rate of COD(Cr) was remained about 37.8%.The combined process which consisted of aerobic digestion-anoxic regulation-waterfall aeration contact oxidation-vegetated constructed wetland to deal with decentralized domestic sewage could achieve good removal effect,the average concentration of the effluent were 39.3 mg/L,the average removal rate in turn were 86.2%,which reached the class A emission standard in the“urban sewage treatment plant pollutant discharge standard”(GB18918—2002).
文章编号:201301326     中图分类号:    文献标志码:
基金项目:国家水污染控制与治理重大专项资助项目(2012ZX07101-005);江苏省博士后基金资助项目(1102040C);东南大学博士后基金资助项目
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王永谦,吕锡武,郑美玲,杨子萱.厌氧生物滤池在生活污水厌氧-好氧组合处理工艺中的应用[J].工程科学与技术,2014,46(2):182-186.
Wang Yongqian,Lyu Xiwu,Zheng Meiling,Yang Zixuan.Anaerobic Filter Reactor in a Compact Treatment System for Rural Domestic Wastewater Removal[J].Advanced Engineering Sciences,2014,46(2):182-186.