多级A/O-电解除磷-生态净化组合工艺在变电站生活污水处理中的工程应用  

Engineering application of multi-stage A/O-electric dephosph-orizationecological purification combined process treatment domestic wastewater in transformer substation

作　　者：齐笑言 李响 佟勃霖 吴松羽 李成俊 QI Xiaoyan;LI Xiang;TONG Bolin;WU Songyu;LI Chengjun(Electrical Power Research Institute,State Grid Liaoning Electric Power Supply Co.,Ltd.,Shenyang 10006,China)

机构地区：[1]国家电网辽宁省电力有限公司电力科学研究院,沈阳110006

出　　处：《环境工程学报》2023年第9期3100-3107,共8页Chinese Journal of Environmental Engineering

基　　金：国网辽宁省电力有限公司科技项目(2022YF-77)。

摘　　要：辽宁省某变电站生活污水处理工程为研究对象,采用多级A/O-电解除磷-生态净化池组合工艺用于变电站实际生活废水处理;同时分析该组合系统在污染物去除、运行维护等方面的特点。实际运行情况表明:该工艺对COD、SS、NH_(4)^(+)-N、TP的平均去除率均达到了90%以上的较好效果,各项出水指标均满足辽宁省地方排放标准(DB 21/1627-2008《污水综合排放标准》)中的排放要求;电解除磷最优技术参数为电压24 V、极板间距4 cm、电解时间12 h。此外,该组合工艺运行成本低,吨水成本仅为0.62元,且自动化程度高,安装方式灵活,同样适用于北方寒冷地区。本研究结果可为变电站生活污水处理工程提供设计经验与工程案例参考。This paper taked a substation domestic wastewater treatment project in Liaoning Province as an example,adopting multi-stage A/O-electrolytic dephosphorization-ecological purification tank combination process for the actual domestic wastewater treatment of the substation;at the same time,analyzing the characteristics of this combination system in terms of pollutant removal,operation and maintenance.The operation results showed that the average removal rates of COD,SS,NH_(4)^(+)-N and TP of the process were more than 90%,all effluent indicators meeted the discharge requirements of the local discharge standards of Liaoning Province(DB 21/1627-2008“Comprehensive Sewage Discharge Standards”).The voltage of 24 V,the plate spacing of 4 cm,and the electrolysis time of 12 h were the optimal parameter combinations of the electro phosphorus technology under this combined process.In addition,the combined process had low operating cost,the cost of a ton of water was only 0.62 yuan,and the degree of automation was high,the installation method was flexible,and it was also suitable for cold areas in the north.The results of this study can provide design experience and engineering case reference for substation domestic sewage treatment project.

关 键 词：变电站生活污水 生化处理 生态处理 电解除磷 

分 类 号：X703[环境科学与工程—环境工程]