北方某污水厂CASS工艺升级改造设计
|
摘要
以北方某污水处理厂升级改造工程为例,介绍了CASS反应池改造方案及实施效果,改造措施包括优化运行周期,新增缺氧区及MBBR区,增加内回流及碳源投加设施。反应池出水各指标优于《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。工程总投资为20 286万元,升级改造新增运行成本0. 201元/m~3。升级改造方案具有不停产施工、总氮去除率高、降低污水厂运行成本的特点,可为北方污水处理厂的升级改造提供借鉴。
Taking a sewage treatment plant in northern China as an example,the upgrading project and implementation results of CASS process were introduced,which included optimizing the operation cycle,adding anoxic zone,MBBR zone,internal reflux and carbon source dosing facilities. The effluent indexes were superior to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). The total investment of the project was 202. 86 million yuan,and operating costs of the upgrading project increased by 0. 201 yuan/m~3. The upgrading project had the characteristics of non-stop construction,high total nitrogen removal and lower operation cost of the sewage treatment plant,which could be used to provide reference for upgrading of sewage treatment plant in northern China.
Taking a sewage treatment plant in northern China as an example,the upgrading project and implementation results of CASS process were introduced,which included optimizing the operation cycle,adding anoxic zone,MBBR zone,internal reflux and carbon source dosing facilities. The effluent indexes were superior to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). The total investment of the project was 202. 86 million yuan,and operating costs of the upgrading project increased by 0. 201 yuan/m~3. The upgrading project had the characteristics of non-stop construction,high total nitrogen removal and lower operation cost of the sewage treatment plant,which could be used to provide reference for upgrading of sewage treatment plant in northern China.
引文
[1]任明华.CASS工艺的性能和优化运行研究[D].上海:同济大学,2007.Ren Minghua.Study on Performance and Optimum Operation of CAST Process[D].Shanghai:Tongji University,2007(in Chinese).
[2]严俊泉,焦建文,陆晓岚,等.CAST工艺运行优化和控制研究[J].中国给水排水,2010,26(9):46-49.Yan Junquan,Jiao Jianwen,Lu Xiaolan,et al.Study on operational optimization and control of CAST process[J].China Water&Wastewater,2010,26(9):46-49(in Chinese).
[3]邓伟斌.南方某污水处理厂CAST工艺提标改造[J].中国给水排水,2016,32(16):77-79.Deng Weibin.Upgrading of cyclic activated sludge technology in a wastewater treatment plant in southern China[J].China Water&Wastewater,2016,32(16):77-79(in Chinese).
[4]吴迪,李闯修.北方某污水处理厂Bardenpho-MBBR改造运行分析[J].中国给水排水,2018,34(9):106-110,115.Wu Di,Li Chuangxiu.Operation analysis of BardenphoMBBR upgrading and retrofitting in a northern wastewater treatment plant[J].China Water&Wastewater,2018,34(9):106-110,115(in Chinese).
[5]杨宇星,吴迪,宋美芹,等.新型MBBR用于类地表Ⅳ类水排放标准升级改造工程[J].中国给水排水,2017,33(14):93-98.Yang Yuxing,Wu Di,Song Meiqin,et al.Application of new MBBR in WWTP upgrading to meet classⅣsurface water standard[J].China Water&Wastewater,2017,33(14):93-98(in Chinese).
[2]严俊泉,焦建文,陆晓岚,等.CAST工艺运行优化和控制研究[J].中国给水排水,2010,26(9):46-49.Yan Junquan,Jiao Jianwen,Lu Xiaolan,et al.Study on operational optimization and control of CAST process[J].China Water&Wastewater,2010,26(9):46-49(in Chinese).
[3]邓伟斌.南方某污水处理厂CAST工艺提标改造[J].中国给水排水,2016,32(16):77-79.Deng Weibin.Upgrading of cyclic activated sludge technology in a wastewater treatment plant in southern China[J].China Water&Wastewater,2016,32(16):77-79(in Chinese).
[4]吴迪,李闯修.北方某污水处理厂Bardenpho-MBBR改造运行分析[J].中国给水排水,2018,34(9):106-110,115.Wu Di,Li Chuangxiu.Operation analysis of BardenphoMBBR upgrading and retrofitting in a northern wastewater treatment plant[J].China Water&Wastewater,2018,34(9):106-110,115(in Chinese).
[5]杨宇星,吴迪,宋美芹,等.新型MBBR用于类地表Ⅳ类水排放标准升级改造工程[J].中国给水排水,2017,33(14):93-98.Yang Yuxing,Wu Di,Song Meiqin,et al.Application of new MBBR in WWTP upgrading to meet classⅣsurface water standard[J].China Water&Wastewater,2017,33(14):93-98(in Chinese).