A_O_混凝沉淀_O组合工艺处理印染废水中试_徐灏龙

A/O/混凝沉淀/O组合工艺处理印染废水中试徐灏龙,　白俊跃,　彭振华,　王付超(国家环境保护水污染控制工程技术<浙江>中心,浙江杭州310007)　　摘　要:　采用A/O/混凝沉淀/O组合工艺处理棉布印染废水,考察了不同水力停留时间下,对COD、色度的去除效果。结果表明:当兼氧段停留时间为14h、好氧段停留时间为10.5h时,该工艺对印染废水中COD和色度的总去除率分别达到90%和92%以上,出水水质完全符合印染废水一级排放标准。　　关键词:　印染废水;　悬浮生物滤池;　混凝沉淀中图分类号:X703　　文献标识码:C　　文章编号:1000-4602(2009)23-0099-03TreatmentofPrintingandDyeingWastewaterbyAnaerobic/Aerobic/CoagulationSedimentation/AerobicProcessXUHao-long,　BAIJun-yue,　PENGZhen-hua,　WANGFu-chao(StateEnvironmentalProtectionEngineering<Zhejiang>CenterforWaterPollutionControl,Hangzhou310007,China)　　Abstract:　Theanaerobic/aerobic/coagulationsedimentation/aerobicprocesswasusedtotreatprintinganddyeingwastewater,andtheremovalefficienciesofCODandcolorunderdifferentHRTwereinvestigated.TheresultsshowthatthetotalremovalratesofCODandcolorcanreachmorethan90%and92%respectively,whentheanaerobicHRTis14handtheaerobicHRTis10.5h.TheeffluentqualityreachestheⅠ-gradedischargestandardoftheprintinganddyeingindustry.　　Keywords:　printinganddyeingwastewater