Analysis of influent water quality of municipal wastewater treatment plant and study on MBR membrane biological treatment process
In order to improve the treatment efficiency of urban sewage,based on the analysis of the influent water quality indicators of a municipal sewage treatment plant,the MBR membrane biological treatment technology was studied for the target urban sewage,and its treatment effect was analyzed.The results showed that the concentration of pollutants in the influent water sample of the target urban sewage treatment plant was relatively high,in COD was 202.8mg·L-1,ammonia nitrogen was 38.3mg·L-1,TN was 50.8mg·L-1,TP was 6.1mg·L-1,and SS was 261.6mg·L-1.After the MBR membrane biological treatment process was adopted to treat the target urban sewage,the pollutant content in the effluent water quality in 12 months had been significantly reduced,including the average COD concentration of 9.82mg·L-1,the average ammonia nitrogen concentration of 0.94mg·L-1,TN 8.41mg·L-1,TP 0.35mg·L-1,and SS 1.93mg·L-1.All indicators can meet the requirements of Class I A standard in the national standard GB 18918-2002.The results show that MBR membrane biological treatment process has a good treatment effect on the target urban sewage,which can provide some reference for the efficient treatment of similar urban sewage.
NETL
NSTL
万方数据
维普
