PAC与PAM复合絮凝剂处理泡菜废水_杨红梅
- 污水处理护水清
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2020-02-29 21:25:43
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doi:10.11835/j.issn.1674-4764.2017.04.015PAC与PAM复合絮凝剂处理泡菜废水杨红梅a,谷晋川b,张德航a,欧阳杰a,冉孟家a(西华大学a.建筑与土木工程学院;b.食品与生物工程学院,成都610039)摘要:采用絮凝法对泡菜废水进行了试验,分别考察了絮凝剂的种类、助凝剂的种类、PAM分子量、投加方式、pH值、温度、搅拌转速等条件对泡菜废水絮凝处理效果的影响,为泡菜废水的后期生化处理提供了帮助的同时也可为泡菜厂实际絮凝处理提供一定的参考。在含大量NaCl的泡菜废水中,利用PAM网捕、架桥功能完善了PAC单独作用下絮体细小松散的缺陷,改善了絮凝和沉降性能。研究结果表明:PAC用量150mg/L,PAM用量25mg/L,pH6,温度30℃,250r/min快搅2min,90r/min慢搅2min,静置30min后泡菜废水COD、浊度去除率分别达到了37.7%、96.7%。关键词:泡菜废水;絮凝剂;助凝剂;去除率中图分类号:X792文献标志码:A文章编号:1674-4764(2017)04-0095-07收稿日期:2016-10-31基金项目:西华大学研究生创新基金(ycjj2016075)作者简介:杨红梅(1993-),女,主要从事污染控制理论与技术研究,(E-mail)946259903@qq.com。谷晋川(通信作者),男,教授,(E-mail)gu6471@163.com。Received:2016-10-31Foundationitem:GraduateSchoolofXihuaUniversityInnovationFundProject(No.ycjj2016075)Authorbrief:YangHongmei(1993-),mainresearchinterest:pollutioncontroltheoryandtechnology,(E-mail)946259903@qq.com.GuJinchuan(correspondingauthor),professor,(E-mail)gu6471@163.com.AnalysisofflocculantPACandPAMinthetreatmentofpickledcabbagewastewaterYangHongmeia,GuJinchuanb,ZhangDehanga,OuyangJiea,RanMengjiaa(1.ArchitectureandCivilEngineering;b.InstituteofFoodandBiologicalEngineering,XihuaUniversity,Chengdu610039,P.R.China)Abstract:Withtheflocculationtestcarriedoutonthepickledcabbagewater,thetypeofflocculantandcoagulant,molecularmassofPAM,sequenceofaddition,pH,temperature,andstirringspeedareinvestigatedontheeffectofflocculationtreatmentofpicklewastewater,whichmakesthenextstagesofbiochemicaltreatmentmoreeasilyandprovidesareferencefortheselectionoftheflocculationparametersofkimchifactory.InthepickledcabbagewastewaterwhichcontainsalargenumberofNaCl,theflocculationandsedimentationperformanceareimprovedbytheadditionofPAMbecauseofitsbridgingfunctions.UndertheconditionofPACdosageof150mg/L,PAMdosageof25mg/L,pH6,atthetemperatureof30℃,by2minutesofamagneticstirrerstirring(250rpm/min)andaslowstirring(90rpm/min),static30min,thebestresultisobtained.TheremovalrateofCODandturbidityreaches37.7%,96.7%.Keywords:picklewastewater;flocculant;coagulant;removalrate近年来,四川泡菜行业蓬勃发展,泡菜产量位居全国之
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