一体式A^(2)O-MBR系统处理高速公路服务区污水的研究  

Research on integrated A^(2)O-MBR reactor for wastewater treatment in expressway service area

作　　者：谭斌 黄阳鹏 肖勇 林冰 张运杰 张倩[2] TAN Bin;HUANG Yangpeng;XIAO Yong;LIN Bing;ZHANG Yunjie;ZHANG Qian(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430056,China;School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,湖北武汉430056 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《工业水处理》2024年第4期170-178,共9页Industrial Water Treatment

摘　　要：为解决高速公路服务区污水中污染物浓度高、处理设施普遍存在效能低下等问题,采用一体式A^(2)O-MBR反应器处理该目标污水。在反应器启动成功的基础上,研究了不同溶解氧(DO)、硝化液回流比和C/N下A^(2)O-MBR工艺对污染物的去除性能。结果表明,在控制DO为4 mg/L,硝化液回流比为300%,C/N为6时,A^(2)O-MBR获得了最佳污染物去除效果,A^(2)O-MBR工艺的COD、BOD_5和TP去除率分别为90.57%、93.75%和93.00%。反应器稳定运行时,出水NH_(4)^(+)-N和SS分别为4.2 mg/L和4.5 mg/L,出水指标均达到了《城市污水再生利用城市杂用水水质》(GB/T 18920—2020)中冲厕、车辆冲洗的要求。一体式A^(2)O-MBR在一定程度上可以降低膜组件的污染程度,从而降低系统的维护运行成本,可为高速公路服务区污水处理实际工程改造提供参考。In order to solve the problems of high pollutant concentration and low treatment efficiency of sewage in ex-pressway service area,an integrated A^(2)O-MBR reactor was used to treat the target sewage.On the basis of success-ful start-up of the reactor,the pollutant removal performances of A^(2)O-MBR process under the influence of different DO,nitrification reflux ratio and C/N were studied.The results showed that A^(2)O-MBR could obtain the best pollut-ant removal effect under the condition of DO mass concentration of 4 mg/L,nitrification reflux ratio of 300%and C/N of 6.The removal rates of COD,BOD5 and TP were about 90.57%,93.75%and 93.00%.When the reactor was stable,the effluent mass concentrations of NH_(4)^(+)-N and SS were about 4.2 mg/L and 4.5 mg/L,respectively.The efflu-ent indicators all met the requirements of flushing and vehicle flushing in the Reuse of Urban Recycling Water-Water Quality Standard for Urban Miscellaneous Use(GB/T 18920-2020).The integrated A^(2)O-MBR could reduce the pollution degree of membrane components,thus reducing the maintenance and operation cost of the system,and could provide a reference for the actual engineering transformation of sewage treatment in the service area of highways.

关 键 词：A^(2)O-MBR工艺 生物脱氮 服务区污水 污染物 水质标准 

分 类 号：X703.1[环境科学与工程—环境工程]