A^(2)O-SBR工艺在城镇污水处理厂中的应用

Summary of Application of A2O-SBR Process in Urban Sewage Treatment Plant

A^(2)O-SBR工艺为A2O工艺与SBR工艺串联组合,为了探究A^(2)O-SBR工艺在城镇污水处理厂的应用效果,分析广西壮族自治区东兴市城东污水处理厂2021年运行情况,结果表明:厂区出水稳定达标排放,A^(2)O-SBR工艺脱氮除磷效果好;COD、NH_(4)^(+)-N、TP平均去除率为87.05%、97.23%、80.86%,最高去除率为97.55%、98.36%、91.21%;出水浓度相对稳定,A^(2)O-SBR工艺对上述三种污染物的去除率也相对稳定,对NH_(4)^(+)-N效果最好,全年去除率稳定达到95%以上;该污水处理厂平均处理成本0.53元/m^(3)。

The A^(2)O-SBR process is a series combination of the A^(2)O and SBR processes.In order to explore the application effect of the A^(2)O-SBR process in an urban sewage treatment plant,the operation situation of the Chengdong Sewage Treatment Plant in Dongxing City,Guangxi Zhuang Autonomous Region in 2021 was analyzed.The results show that the effluent of the plant is stable and discharged up to standard,and the A^(2)O-SBR process has a good nitrogen and phosphorus removal effect.The average removal rates of COD,NH_(4)^(+)-N and TP were 87.05%,97.23% and 80.86%,and the highest removal rates were 97.55%,98.36% and 91.21%.The effluent concentration is relatively stable.The A^(2)O-SBR process also has a relatively stable removal rate of the above three pollutants.The removal rate of NH_(4)^(+)-N is the best,and the annual removal rate is more than 95%.The average treatment cost of the sewage treatment plant was 0.53 yuan/m^(3).