多级曝气-固定化优势微生物强化固定生物膜处理工艺的应用

广州白云山一峰污水处理工程采用了新型污水处理工艺-多级曝气-微生物制剂强化固定生物膜处理工艺,对该工艺的特点及设计体会进行了讨论。设计进水COD、BOD5、SS、NH3-N、TP、动植物油为400～600mg/L、300～400mg/L、250～400mg/L、20～30mg/L、3～5mg/L、70～100 mg/L,出水为90mg/L、20mg/L、10mg/L、10mg/L、0.5mg/L、10 mg/L。实际运行结果表明：主要出水指标COD、BOD5、SS、NH3-N、TP、动植物油的去除率分别可达到88.1%、94.4%、97.9%、88.6%、94.6%、91.5%。该工艺具有占地少、建设成本低、结构简单、施工容易、能耗低、噪声低、运行可靠、稳定达标、剩余污泥极少、运行成本底、维护简便等优点。

Application of Technology of Multi-Stage Aeration and Fixed Biofilm Enhanced by Immobilized Dominant Microorganisms

In Guangzhou Baiyun Mountain Yifeng Wastewater Treatment Project,the new technology for wastewater treatment of multi-stage aeration and fixed biofilm enhanced by immobilized dominant microorganisms was used.The process characteristics and the design experience were discussed.The design influent water COD,BOD,SS,NH3-N,TP,plant and animal oils are 400～600mg/L、300～400mg/L、250～400mg/L、20～30mg/L、3～5mg/L、70～100 mg/L and effluent water are 90mg/L、20mg/L、10mg/L、10mg/L、0.5mg/L、10mg/L.It is indicated by the practical operation project that the removal rates of main effluent indexes,such as COD,BOD,SS,NH3-N,TP,plant and animal oils reached to 88.1%、94.4%、97.9%、88.6%、94.6%、91.5%,respectively.The process has the characteristics such as less land occupied,low construction cost,simple structure,easy construction,low energy cost,low noise,high reliability,reaching the standard steadily,low excess sludge production,lower cost of running and convenient management.