多段内循环厌氧反应器处理屠宰废水的中试
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2020-04-04 22:05:16
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2018年第21期第45卷总第383期广东化工www.gdchem.com33多段内循环厌氧反应器处理屠宰废水的中试段美娟,陈福明,2,,刘淑杰23,刘旭1,吴秉奇1,(1.深土¨J市清研环境科技有限公司深圳,广东深圳518057;2.深圳清华大学研究院,广东深圳518057;3.广东省环境微生物资源开发与应用工程技术研究中心,广东深圳518057)[摘要】多段内循环厌氧反应器设计三段反应室,分别进行废水厌氧反应的三个过程。为探索该反应器处理中、高浓度有机废水的实际运行效果,以屠宰废水为处理对象,考察反应嚣对COD的去除效果。结果表明,当温度为36-38℃,cOD容积负荷为0.5kgCOD/(m3·d时,反应器运行l6天实现反应器的快速启动。进水COD浓度为1000mg/L,通过缩短水力停留时Ih~](HRT)提高有机负荷,确定最佳的HRT为20h,对应的COD容积负荷为1.21kgCOD/(m·d),COD总去除率稳定达到93%。固定HRT=20h,在COD容积负荷由低至高的提升阶段,分别为1.68,2.40,3.12,3.60和4.00kgCOD/(m3.d),反藏器去除COD的总能力由94%降至80%,单位容积反应器产气率分别为0.9,1.4,1.0,1.9和2.1m/(m3.d),去除单位COD产生的气体体积分布在0.29~0.33m3/kgCOD之间。【关键词1多段内循环厌氧反应器;屠宰废水:c0D容积负荷[中图分类号]x5m【文献标识码1A『文章编号110071865(2018)21-0033—03Pilot-scaleStudyontheTreatmentofSlauterh0useWastewaterbyMulti..interna1..circleAnaerobicReactoDuanMeOuan,ChenFuming’’,LiuShujie·,LiuXu,WuBingqi(1.ShenzhenQingYanEnvironmentalTechnologyCo.,Ltd,Shenzhen518057;2.ResearchInstituteofTsinghuaUniversityinShenzhenShenzhen518057:3.ResearchInstituteofTsinghuaUniversityinShenzhen,Shenzhen518057,China)Abstract:Amulti—internal—circleanaerobicreactorwasdesignedwiththree—stagereactionchamberf0rthethree—stageanaerobicprocesses.Inordertoinvestigatetheoperationeffectforhighconcentrationorganicwastewater.thereactorwascarriedoattodea1withslaughterhOusewastewater.CODremovairatewasevaluated.Resultsshowedthatanaerobicreactorwhichoperatedattemperatureof36~38℃andatCODvolumeloadingof0.5kgCOD/(mdcouldbestarted.ubsuccessfullyduring16daysThehydraulicretentiontime(HRT)wasgraduallydecreasedataconstantinfluentCODconcentration0fl000mg/LTheCODremovalrateof93%wasrealizedbytheconditionofHRTof20handCODvolumeIoadingof1.21kgCOD/(m3·d1.AtHRTof20h.theCODremovalratewasstudiedatthestagesofdifferentCODvolumeloads1.68,2.4O,3.12,3.6Oand4.00k2COD/(md),respectivelyFromlowertohigher,thetotaIcapacityofremovingCODdecreasedfrom94%to80%AtthestagesofdifierentCODvolumeloads,thegasproductionrateperunitvolumereactorwas0.9,1.41.0,1.9and2lm/(md)respectively,andthevolumeofgasgeneratedbyremovingunitCODwasbetween0.2%0.33m/k
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