物化预处理_水解酸化_接触氧化法处理选矿废水_林梓河

物化预处理—水解酸化—接触氧化法处理选矿废水林梓河，宋卫锋，罗丽丽(广东工业大学环境科学与工程学院，广州510009)摘要:对某浮选厂浮选废水进行混凝沉淀+活性碳吸附预处理，然后进入生化系统，厌氧池、好氧池停留时间为10h。结果证明:进水COD为400～700mg/L，出水74～145mg/L，去除率达75．8%以上，首次成功地将生物法应用到铅锌选矿废水的处理，若对该工艺进行适当调整，完全可以使出水达到排放或回用标准。关键词:浮选废水;预处理;生物法;停留时间中图分类号:X703文献标识码:A文章编号:(K)11088(原1002－1264)(2011)03－0026－04TreatmentofFlotationWastewaterbyPhysicochemicalPretreatment－hydrolysisAcidification－biologicalContactOxidationProcessLINZi-he，SONGWei-feng，LUOLi-li(CollegeofEnvironmentalScienceandEngineering，GuangdongUniversityofTechnology，Guangzhou510009，China)Abstract:Flotationwastewaterwastreatedbythecombinedprocessesofphysicochemicalpretreatment－hydrolysisacid-ification－biologicalcontactoxidation．TheHRTofAnaerobicreactorandAerobicreactorwas10hours．TheresultsdemonstratedthattheconcentrationofCODdecreasedfrom400～700mg/Lto74～145mg/Lthroughthecombinedprocesses，theaverageremovalratewas75．8%．Thebiologicalmethodfirstsuccessfullyapplytothelead－zincflotationwastewater，iftheappropriateadjustmentwasmadefortheprocesses，thei