强化复合厌氧反应器处理农村生活污水的快速启动  

Rapid start-up of enhanced hybrid anaerobic reactor for rural domestic sewage treatment

作　　者：刘建伟[1] 刘雪丽 高柳堂 康心悦 胡明 王培京 LIU Jianwei;LIU Xueli;GAO Liutang;KANG Xinyue;HU Ming;WANG Peijing(Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Shijiazhuang Yiling Pharmaceutical Co.Ltd.,Shijiazhuang 050035,China;Beijing Water Science and Technology Institute,Beijing 100048,China)

机构地区：[1]北京建筑大学,北京市可持续城市排水系统构建与风险控制工程技术研究中心,北京100044 [2]石家庄以岭药业股份有限公司,石家庄050035 [3]北京市水科学技术研究院,北京100048

出　　处：《环境工程学报》2020年第9期2339-2345,共7页Chinese Journal of Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07102004-005)。

摘　　要：针对常规单一厌氧反应器处理农村生活污水启动时间长、处理效率低等问题,构建了一种集填料型厌氧折流和厌氧滤池技术为一体的新型强化复合厌氧反应器,并对该反应器的启动方法和运行特性进行了探究。采用接种污水厂活性污泥,并通过逐渐缩短反应器水力停留时间(HRT)的方法,进行反应器的启动。结果表明,在运行时间为25 d时,反应器出水COD降至65 mg·L^−1,COD去除率达70.7%;各格室pH和氧化还原电位(Eh)分别稳定在6.9~7.0和(−243±6)^(−289±6)mV;CH4产生量达365 mL·d^−1,反应器实现成功启动。其中,折流区单元对COD的去除占主导作用,折流区单元内污泥生长和填料挂膜状况良好。本研究构建的强化复合厌氧反应器能够成功实现快速启动,为其在农村生活污水处理中的实际应用提供了参考依据。In order to solve the problems of long start-up period and low treatment efficiency of conventional single anaerobic reactor for rural domestic sewage treatment,a novel enhanced hybrid anaerobic reactor which integrated anaerobic baffled reactor with packing and anaerobic filter was built,and its start-up method and operating characteristics were studied.The start-up of this hybrid reactor was performed by inoculating the activated sludge from wastewater treatment plant and gradually shortening its HRT.The results showed that after 25 days running,the effluent COD concentration decreased to 65 mg·L^−1 and the COD removal efficiency reached 70.7%,the pH and Eh in each compartment were stabilized at 6.9~7.0 and(−243±6)^(−289±6)mV,respectively,and the CH4 production was 365 mL·d^−1,indicating the successful start-up of the hybrid reactor.Of which the baffled unit played a dominant role in COD removal,and the sludge growth and biofilm formation in the baffled unit were good.The results showed that the enhanced hybrid anaerobic reactor for rural sewage treatment can achieve the rapid start-up,it can provide reference for the practical application of this hybrid reactor in rural domestic sewage treatment.

关 键 词：农村生活污水 复合厌氧反应器 厌氧折流板反应器 厌氧滤池 反应器快速启动 

分 类 号：X703[环境科学与工程—环境工程]