中国给水排水杂志-2010年第15期

论述与研究A2O-MBR组合工艺处理城市污水的试验研究朱宁伟1,李激2,郑晓英1,羊鹏程2,陈豪2,武迪1(1.河海大学环境科学与工程学院,江苏南京210098;2.无锡市排水总公司,江苏无锡214023)摘要:采用A2O-MBR组合工艺处理南方城市污水,依靠膜分离技术强化传统A2O工艺对有机物和氮、磷的去除。试验结果表明,A2O-MBR组合工艺对南方城市污水具有良好的处理效果,MBR代替A2O工艺的沉淀池可以强化对BOD5、NH+4-N、TN和TP的去除,其中对NH+4-N、TN和TP的去除量分别占系统总去除量的12.14%、9.21%和12.23%。71d的监测结果显示,该组合工艺的平均出水COD、BOD5、NH+4-N、TN和TP分别为29.15、0.51、0.43、12.31、0.21mg/L,出水水质稳定达到5城镇污水处理厂污染物排放标准6(GB18918)2002)一级A标准和5太湖地区城镇污水处理厂及重点工业行业主要水污染物排放限值6(DB32/1072)2007)的要求。关键词:A2O-MBR组合工艺;城市污水;超滤膜中图分类号:X703文献标识码:A文章编号:1000-4602(2010)15-0001-04CombinedProcessofA2OandMBRforTreatmentofMunicipalWastewaterZHUNing2wei1,LIJi2,ZHENGXiao2ying1,YANGPeng2cheng2,CHENHao2,WUDi1(1.CollegeofEnvironmentalScienceandEngineering,HohaiUniversity,Nanjing210098,China;2.WuxiDrainageCompany,Wuxi214023,China)Abstract:ThecombinedprocessofA2OandMBRwasappliedtotreatmunicipalwastewaterinthesouthofChina.Theorganicmatter,nitrogenandphosphorusremovalintraditionalA2Oprocesswasenhanceddependingonthemembraneseparation.TheexperimentalresultindicatesthatthecombinedprocessofA2OandMBRhasagoodtreatmentefficiencyofthemunicipalwastewaterinthesouthofChi2na.MBRinsteadofsedimentarytankofA2OprocesscanenhanceremovalofBOD5,NH+4-N,TNandTP.TheremovalratesofNH+4-N,TNandTPaccountfor12.14%,9.21%and12.23%oftheirtotalremova.lTheaverageeffluentconcentrationsofCOD,BOD5,NH+4-N,TNandTPare29.15mg/L,0.51mg/L,0.43mg/L,12.31mg/Land0.21mg/Lrespectively.TheeffluentqualitymeetsthefirstlevelAcriteriaspecifiedinDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918-2002)andtherequirementofDischargeStandardofMainWaterPollutantsforMunicipalWastewaterTreatmentPlantandKeyIndustriesofTaihuArea(DB32/1072-2007).Keywords:combinedprocessofA2OandMBR;municipalwastewater;ultrafiltrationmem2brane基金项目:江苏省科技支撑计划项目(BE2008674)#1#第26卷第15期2010年8月中国给水排水CHINAWATER&WASTEWATERVo.l26No.15Aug.2010