工业水处理 ›› 2024, Vol. 44 ›› Issue (4): 170-178. doi: 10.19965/j.cnki.iwt.2023-0242

• 试验研究 • 上一篇    下一篇

一体式A2O-MBR系统处理高速公路服务区污水的研究

谭斌1(), 黄阳鹏1, 肖勇1, 林冰2, 张运杰2, 张倩2()   

  1. 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
  • 收稿日期:2023-12-20 出版日期:2024-04-20 发布日期:2024-04-17
  • 作者简介:

    谭斌(1981— ),高级工程师。E-mail:

    张倩,教授,博士。E-mail:

Research on integrated A2O-MBR reactor for wastewater treatment in expressway service area

Bin TAN1(), Yangpeng HUANG1, Yong XIAO1, Bing LIN2, Yunjie ZHANG2, Qian ZHANG2()   

  1. 1. CCCC Second Highway Consultants Co. , Ltd. , Wuhan 430056, China
    2. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China
  • Received:2023-12-20 Online:2024-04-20 Published:2024-04-17

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A2O-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A2O-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,A2O-MBR获得了最佳污染物去除效果,A2O-MBR工艺的COD、BOD5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NH4 +-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A2O-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。

关键词: A2O-MBR工艺, 生物脱氮, 服务区污水, 污染物, 水质标准

Abstract:

In order to solve the problems of high pollutant concentration and low treatment efficiency of sewage in expressway service area, an integrated A2O-MBR reactor was used to treat the target sewage. On the basis of successful start-up of the reactor, the pollutant removal performances of A2O-MBR process under the influence of different DO, nitrification reflux ratio and C/N were studied. The results showed that A2O-MBR could obtain the best pollutant 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 NH4 +-N and SS were about 4.2 mg/L and 4.5 mg/L, respectively. The effluent 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 A2O-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.

Key words: A2O-MBR technology, biological nitrogen removal, service area sewage, contaminant, water quality standard

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