混凝微滤法处理制革废水_张萍

混凝微滤法处理制革废水_张萍收稿日期:1998-06-19修回日期:1998-09-07第一作者:女,1967年生,工程师混凝微滤法处理制革废水张萍朱淑琴古伟宏苏惠波(齐齐哈尔市环境保护科学研究所,齐齐哈尔161005)摘要对混凝微滤法处理制革废水进行了试验研究,通过大量试验,确定了最佳工艺条件。在最优控制的基础上,制革废水经混凝沉淀-微滤处理后,COD,BOD5,SS和色度的去除率分别为80%,87%,89%和92%左右,处理后废水可达到排放标准或回用于制革工艺。结果表明,在较低温度下,用硫酸亚铁作混凝剂仍能较好地完成混凝沉淀,验证了硫酸亚铁的低温混凝效果。因此,该工艺值得在北方寒冷地区大力推广。关键词混凝微滤去除率硫酸亚铁StudyonTreatmentofTanningWastewaterbyFlocculating-MicroFilteringProcessZHANGPingZHUShuqinGUWeihongSUHuibo(QiqiharEnvironmentalProtectionScienceInstitute,Qiqihar161005)AbstractInthisarticle,weproceedexperimentalstudyontreatingtanningwastewaterwithflocculating-microfilteringprocess.Bymeansofagreatamountofexperiments,wedefinetheoptimumtechnologycondition.Onthebaseofoptimalcontrol,tanningwastew-ateristreatedthroughflocculating-microfilteringprocess,theremovalratesofCOD,BOD5,SSanddecolorizationratearerespective-ly80%,87%,89%and92%orso.Thetreatedwastewatercanreachthewastewaterdischargestandardorbereusedintanningpro-cess.Theresultofexperimentshowsthatflocculatingsettlingcanproceedf