混凝气浮_生物接触氧化法处理机械加工业含乳化油废水5ea0975f46527d3e1d0

混凝气浮_生物接触氧化法处理机械加工业含乳化油废水���收稿日期:2005-07-18;修订日期:2006-05-16混凝气浮�生物接触氧化法处理机械加工业含乳化油废水叶�平,东俊玲,刘素珍,王文忠,王连生(天津市环境保护科学研究院,天津300191)��摘要:在混凝剂筛选、不同水质处理效果比较和生物处理实验的基础上,优化确定出混凝气浮�生物接触氧化组合处理工艺。工程实践证实:将含油乳化液与总排口水混合,混凝气浮的COD去除率可达52.4%;接触氧化的COD去除率为81%;处理出水达到国家排放标准一级指标要求。关键词:机械加工废水;乳化液;混凝沉淀;生物接触氧化中图分类号:X703.1��文献标识码:A��文章编号:(K)05259(原1002-1264)(2006)04-0020-03TreatmentoftheEmulsion-ContainingWastewaterinMachineandMetalworkingwithCoagulationFloatationandBiologicalContactOxidationYEPing,DONGJun-ling,LIUSu-zhen,WANGWen-zhong,WANGLian-sheng(TianjinAcademyofEnvironmentalSciences,Tianjin300191,China)Abstract:Basedonscreeningofcoagulant,experimentsofsedimentationandbiologicaloxidation,thetechnologicalpro-cessofwastewatertreatmentforthemachineandmetalworkingwereexperimentallyselectedandwasusedinpracticeofindustrialfield.Themixedliquorofwasteemulsionandeffluentwastreatedbythecombinedprocessofcoagulationfloatationandbiologicalcontactoxidation.Theeffluentconcentrationsmetthefirstlevelaboutnationalsewagecompre-