OAASBR生物脱氮工艺的抗冲击负荷性能李会东

OAA/SBＲ112231．0100512．0710013．061000OAA/SBＲ0．04～0．09kg-COD/kgMLSS·d0．25～0．63kgCOD/kgMLSS·d。OAA/SBＲ。OAA/SBＲTN88．8%97．1%TN5．872．15mg/LCOD90%COD39mg/L《》GB18918—2002A。OAA/SBＲX703C1000－4602201619－0080－04ZD201511NJZY16084ZD20131061Anti-shockLoadingPerformanceofOAA/SBＲProcessinBiologicalNitrogenＲemovalLIHui-dong1ZHANGLin12LIUJun-liang2GAOGui-zhi31．CollegeofCivilEngineeringInnerMongoliaUniversityofTechnologyHohhot010051China2．CollegeofUrbanandＲuralConstructionAgriculturalUniversityofHebeiBaoding071001China3．DepartmentofCivilEngineeringHebeiUniversityofWaterＲesourcesandElectricEngineeringCangzhou061000ChinaAbstractThenewOAA/SBＲprocesswasutilizedtotreatnitricwastewaterandthepollutantre-movalefficiencyatlowloadingrateof0．04to0．09kgCOD/kgMLSS·dandhighloadingrateof0．25to0．63kgCOD/kgMLSS·dwasinvestigated．TheresultsrevealedthatthelevelofloadingratehadinfluenceontheactivityofmicroorganismsintheOAA/SBＲsystemandunderdifferentloadsdifferentmicrobialstrainswouldobtaincompetitiveadvantageinthesamereactor．OAA/SBＲhadastrongcapa-bilityofanti-shockloadingandincreasingloadingratewasfavorableforthebiologicalnitrogenremovalinthesystem．UnderthetwokindsofloadingratesabovementionedtheremovalratesofTNwere88．8%and97．1%withtheeffluentTNconcentrationsof5．87mg/Land2．15mg/LrespectivelyandtheremovalratesofCODwerebothmorethan90%withtheaverageeffluentCODconcentrationofbe-low39mg/LwhichcouldmeetthefirstlevelAcriteriaspecifiedintheDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002．·08·3219201610CHINAWATEＲ＆WASTEWATEＲVol．32No．19Oct．2016KeywordsOAA/SBＲprocessbiologicalnitrogenremovalshockloadingstability1～4OAA/SBＲ///。OAA/SBＲ。OAA/SBＲ、。11.1OAA/SBＲ1。OAA/SBＲ90mm、2000mm190mm、1000mm190mm、1000mm400mm×800mm×400mm。、、、、、、。。、、。283794979786曝气混合液回流175897101进水79977979出水污泥排放1.蠕动泵2.预曝气池3.缺氧池4.厌氧池5.间歇曝气池6.空气压缩机7.阀门8.搅拌机9.取样口10.溢流口1OAA/SBＲFig．1FlowchartofOAA/SBＲprocess1.218．3～26．2℃。1～45d20．022m3、、、HＲT2、2、2、4h150%MLSS2．35～3．89g/L0．04～0．09kgCOD/kgMLSS·dDO1．0～2．3、3．1～4．1mg/L0．5h、1/3。46～90d20．022m3、、、HＲT2、2、2、4h150%SＲT30dMLSS4．21～5．08g/L0．25～0．63kgCOD/kgMLSS·dDO1．5～2．5、3．5～4．5mg/L0．5h、1/3。/、、。COD＜50mg/L、NH+4－N90%。1.3COD、NH+4－N、NO－3－N、TN、PO3－4－P72～180、40．1～75．2、0．8～1．5、42．5～78．5、1．5～2．3mg/LpH7．2～8．0COD、NH+4－N、NO－3－N、TN、PO3－4－P635～1500、52．5～83．5、0．9～1．5、54．0～85．0、1．8～2．9mg/LpH7．4～8．3。1.4NH+4－NNO－3－NNO－2－NN－1－－CODTN－pHPHB－5pHMLSS。22.1OAA/SBＲCOD·18·．watergasheat．comOAA/SBＲ32192。、COD。60%55%。CODCODCODCOD。CODDOCOD。1009080706050403020100ＣＯＤ去除率/%预曝气区缺氧区厌氧区间歇曝气区低负荷高负荷2CODFig．2ＲemovalrateofCODindifferentunitsCOD。CODCOD。CODCOD。、CODCOD、。CODCOD。COD。OAA/SBＲ。2.2OAA/SBＲTNNH+4－N3。TN88．8%97．1%93．2%98．3%TN5．872．15mg/LC/NNH+4－N96．6%97．6%。TNNO－x－N。DONO－3－NNO－2－N、TNNH+4－N。进水TN出水TNTN去除率进水ＮＨ４－Ｎ出水ＮＨ４－ＮＮＨ４－Ｎ去除率1009080706050403020100浓度/(mg·Ｌ－１)１０５１００９５９０８５８０去除率/%2468101214161820高负荷低负荷＋t/d＋＋3OAA/SBＲTN、NH+4－NFig．3ＲemovalefficiencyofTNandNH+4－NinOAA/SBＲ2.3、OAA/SBＲCODCOD90%TN85%。COD4．6～12．7mg/L8．7mg/LCOD34．8～47．6mg/L38．9mg/L。COD①COD·28·3219．watergasheat．com、5CODCODCOD②CODCODCOD③OAA/SBＲDO1．8、3．7mg/LDO2～4mg/LDOO2DO。、OAA/SBＲTN2．155．87mg/L。BOD5/TKN≥46。C/N27。DO。。C/NTN96%。OAA/SBＲ、TN。OAA/SBＲCODTN《》GB18918—2002A。OAA/SBＲ、。3①OAA/SBＲCOD。。②OAA/SBＲ。、TN93．2%98．3%TN5．872．15mg/L。NO－x－NNH+4－N。③OAA/SBＲ、CODTNA。1KhinTAnnachhatreAP．Novelmicrobialnitrogenre-movalprocessesJ．BiotechnolAdv2004227519－532．2．D．2013．3．J．200925983－86．4．A2/OJ．200925137－9．5．J．2008132－35．6．M．2009．7．C/NJ．2009292225－230．1974－、、。[e-mail]2016－03－21·38·．watergasheat．comOAA/SBＲ3219