多段多级AO工艺在屠宰废水处理中的应用吴春山

A/O121211234123121．3500072．3500073．3500074．350001A/O3500m3/d。《》GB13457—92COD、NH+4－N97．6%、94．1%93．8%A/O。A/O。A/OX703．1C1000－4602201710－0112－042014YZ0002－1、[e-mail]/OnProcessUsageforTreatmentofSlaughterWastewaterWUChun-shan12JIANGJuan12LIJi-wei1ZHENGYu-yi123LIUJian-wei4SUNQi-yuan123LIUWen-wei121．CollegeofEnvironmentalScienceandEngineeringFujianNormalUniversityFuzhou350007China2．InstituteofEnvironmentScienceFujianNormalUniversityFuzhou350007China3．InstituteofEnvironmentalTechnologyDevelopmentandDesignFujianNormalUniversityFuzhou350007China4．FujianWeibangMunicipalEnvironmentalEngineeringDesignandＲesearchInstituteGroupCo．Ltd．Fuzhou350001ChinaAbstractThemultiplesegmentandmulti-stageA/OprocessA/Onwasusedtoupgradeandreconstructapoultryslaughterwastewatertreatmentstationwithdesigncapacityas3500m3/d．ThemonitoringresultsoftheacceptancecheckshowedthatthefinaleffluentofmodifiedprojectcouldmeetthefirststandardspecifiedinDischargeStandardofWaterPollutantsforMeatPackingIndustryGB13457－92．TheremovalefficiencyofCODNH+4－Nanimalandvegetableoilwereupto97．6%94．1%and93．8%respectively．TheseresultsdemonstratedthatA/Onprocesshadgoodperformanceonnitrogenremoval．MeanwhilethecapitalconstructionengineeringinvestmentandtheoperationcostcouldbesavedtoagreatdealintheA/Onprocess．Thiscasecouldbeusedasreferenceforthewastewatertreatmentengineeringofslaughterhouse．KeywordsslaughterprocesswastewaterA/Ontechnologyprocessimprovementdeni-·211·331020175CHINAWATEＲ＆WASTEWATEＲVol．33No．10May2017trification、、、、、、、。“”。。A/O、A2/O。A/OA/On。A/On1。厌好氧氧池池厌好氧氧池池厌好氧氧池池厌好氧氧池池沉淀池进水回流污泥出水（A/O）n池1A/OnFig．1FlowchartofA/Onhighefficientnitrogenremovalprocess。+。。1。2、3。pH7．4～8．34。1、。2。格栅隔油池集水井调节池浅层气浮池UASB接触氧化池中沉池活性污泥池辐流式沉淀池消毒池总排口废水2Fig．2Flowchartoforiginaltreatmentprocess3500m3/d2500m3/dpH＜5．5。120d。1Tab．1Themonitoringresultsofeffluentfromoriginalmaintreatmentstructuresmg·L－1CODNH+4－N1750～438064～2551490～350058～226UASB520～88072～215142～30348～9654～7523～38≤80≤15《》GB13457—92COD。TN。2A/O3500m3/dCOD3000mg/LNH+4－·311·．watergasheat．comA/O3310N150mg/LCOD≤70mg/LNH+4－N≤15mg/L。———++A/On、。3。二级缺氧池一级好氧池一级好氧池一级缺氧池进水3500m3/d二级好氧池12三级好氧池三级好氧池三级好氧池三级缺氧池二沉池污泥回流出水二沉池3b.改造后进水3500m3/d中沉池污泥回流接触氧化池接触氧化池中间沉淀池中间沉淀池中沉池污泥回流二沉池污泥回流二沉池污泥回流活性污泥池活性污泥池出水污泥回流二沉池a.改造前3Fig．3Schematicplanoftreatmentprocessbeforeandafterimprovement、、、UASBA/OnAOClO2。HＲT=12h6300mmUASBHＲT=16h、2．0kgCOD/m3·dA/On3HＲT=14．6h5h、9．6h60、45、45m3/h、DO0．5～1．0mg/LDO1．4～1．8mg/LDO0．2～0．3mg/LMLSS3500～4500mg/L100%65、6590m30．75m3/m2·hClO2。3201412—2015220155、2。UASBA/On。80d、20165。3。《》GB13457—92COD、NH+4－N97．6%、94．1%93．8%。2。·411·3310．watergasheat．com2Tab．2TheacceptancemonitoringresultsofwastewatertreatmentstructurespHSS/mg·L－1COD/mg·L－1BOD5/mg·L－1/mg·L－1/mg·L－17．1～7．5235～5471540～3180863～130569～20762～18939123601084138125．56．84～7．0329～5742．8～68．810．3～16．14．95～11．423．14～12．464355．813．28．197．806～9≤60≤80≤30≤15≤154A/On。1000m3/d300A/On139161。①pHNaOH40g/m3140kg/d、3000/t15．33A/On。②A/OnDO30kW26．28×104kW·h0．8/kW·h21．02。A/On。5A/On《》GB13457—92。。1．J．200531288－92．2．J．2001152173－174．3．“—”D．2005．4．MSBＲJ．2011271871－75．1971－。[e-mail]2016－11－04·511·．watergasheat．comA/O3310