反硝化除磷工艺效能与运行控制王春英

　:2008-10-23　:,,,。,,。反硝化除磷工艺效能与运行控制1,　2(1.,　　514015;2.,　　510060)　:采用反硝化除磷工艺进行生产性试验处理城市污水,结果表明:该工艺处理城市污水可以达到GB18918—2002一级标准,DPB污泥沉降性能良好,污泥浓度控制在4500～5500mg/L时确定的污泥回流比为20～35%,最佳水力停留时间为:厌氧段0.5～1h,缺氧段1.5～2h;缺氧段后面的再曝气段有利于污泥沉降并可保证除磷效果。:反硝化除磷;除磷脱氮;工艺参数;运行控制:X703　　:A　　:1673-9655(2009)03-0084-03　　《》(GB18918-2002),。COD,。,———。、[1～7],,。,,[8]。,,。1　1.1　,1。,4.1m3;1.8m2;,,,,7.6m3;,7.6m3;,,0.8m3;3.2m2。1　1.2　、,。、,,。,,(COD)PHA,PO3-4;;;,()、,;。5～15min,,。,,COD-。1.3　,1。—84—环境科学导刊　2009,28(3):84-86　　　　　　　　　　　　　　CN53-1205/X　ISSN1673-9655DOI:10.13623/j.cnki.hkdk.2009.03.020,(、),,。3,,。　　　　　1　　　　　　(mg/L)pH7.2～7.67.4COD40～226127BOD13～8948NO-3-N0.21～1.450.71NH+4-N9.51～22.4016.07TN11.90～25.5219.04PO3-4-P1.12～2.331.82TP0.96～2.262.111.4　2　BODBODCODTPTNPO3-4-pNH+4-NNO-3-NpHpHTDO2　2.1　,COD89～173mg/L,20.5～21.3mg/L,18.2～20.6mg/L,1.68～2.51mg/L,COD≤22mg/L,≤5.22mg/L,≤3.97mg/L,≤0.2mg/L。73%,95%。A。(),。817COD40mg/L、9.35mg/L、0.95mg/L,COD16mg/L,2.93mg/L,0.99mg/L。,COD,,,,;,。,。,;。2.2　(HRT),,。,HRT,,HRT1.5～2h;COD,,,。HRT:0.5～1h,1.5～2h。2.3　,(MLSS)。MLSS、,;MLSS,、。,,—。,(DPB),SVI34～43。Kuba(1993)A2SBRA/OSBRA2SBRSVI50%,;A/OSBRSVI100%[9]。DPB,4400～5800mg/L,,30minSV(%)18～23,。DPB:4500～5500mg/L,。2.4　,,SBR、Unitank,。,,()。,。,()。:—85—反硝化除磷工艺效能与运行控制　　王春英NH+4-N24.72mg/L5.54mg/L,78%,NH+4-N15.6mg/L。NH+4-N,NH+4-NNH+4-N,。,。20～25%,()30～35%。20～25%,。,,。。2.5　,0.8m3,5～15min。Kuba(1993)Wanner,1996[9,10]。COD。,,。,,,。,、,100mlSV,0ml～25ml、75ml～100ml(75-100ml),,。,SV20～25%。,,,。DPBO2NO-3,NO-3,O2。3　(1)COD、,。20～35%,,。(2)DPB,4500～5500mg/L,HRT:0.5～1h,1.5～2h。(3):;NO-3-N,。,PO3-4。:[1]　,,,.[J].,2007,38(5).[2]　.[J].,2006,26(13).[3]　,.[J].,2002,3(6).[4]　,.[J].,2007,26(3).[5]　,,,.[J].(),2007,35(6).[6]　,,.[J].,2008,26(1).[7]　.[A].[C].2005.[8]　JenkineD,TandoiV.Theappliedmicrobiologyofenhancedbio-logicalphosphateremovalaccomplishmentsandneeds[J].Wat.Res.,1996,25(12).[9]　KubaT.,vanLoosdrechtM.C.M,HeijnenJ.J.Biological.Phosphorusremovalfromwastewaterbyanaerobicanoxicsequencingbatchreactor[J].Wat.Sci.Tech.,1993,27(5-6).[10]　KubaT.,vanloosdrechtM.C.M.,HeijnenJ.J.PhosphorusandnitrogenremovalwithminimalCODrequirementbyintegra-tionofnitrifyingdephosphatationandnitrficationinatwo-sludgesystem[J].Wat.Res.,1996,30(7).(92)—86—环境科学导刊　第28卷　第3期　2009年6月2　3[5]19981999200020012002　　(1)2,1998、、,。,。(2),、。,,。,。:[1]　,,.TOPSIS[J].,2007,23(2).[2]　,,.[J].,2007,25(1).[3]　.[M].:,2002.[4]　,.[J].,2004,22(5).[5]　,.[J].,2006,24(6).ApplicationofMultiobjectDecisionModelBasedonEntropyWeighttoEvaluatetheWaterEnvironmentalQualityQIANQi-suo1,RAOQing-hua2(1.YunnanNewCenturyInstituteofEnvironmentalProtection,KunmingYunnan650032China)Abstract:Theconceptsandcharactersofentropyandentropyweightareintroduced.Themultiobjectdecisionmodelbasedonentropyweightsisestablishedbycombiningtheentropyweightandmultiobjectdecisionmodel.Themodelisusedtoevaluatethewaterenvironmentalquality.Theassessmentresultsarecomparedtothatfrommatterelementmodelandtheattributeidentifymodelandthefuzzyadministeringfunction.Usingthemultiobjectdecisionmodelbasedonentropyweighttoevaluatethewaterenvironmentalqualityisfeasible.Keywords:entropy;entropyweight;multiobjectdecision;evaluationmethod(86)StudyonEffectivenessandControlofDenitrifyingPhosphorusRemovalProcessWANGChun-ying1,SUIJun2(1.DepartmentofChemistry,JiayingUniversity,MeizhouGuangdong514015China)Abstract:Studyondenitrifyingphosphorusremovalprocessusedtotreatmunicipalwastewaterinafull-scaleex-perimentalsystemisconducted.Theresultsshowthattheeffluentqualitycanreachthefirstclassdischargestand-ardofGB18918-2002,andtheDPBsludgehasgoodcapabilitiesinsettling.Whentheconcentrationofsludgevariedfrom4500mg/Lto5500mg/L,therefluxratiowascontrolledfrom20%to30%,andtheoptimumHRTis0.5to1hforaerobicprocessand1.5to2hfroanoxicprocess.Thesecondaerationprocessispropitioustoprecipi-tatethesludgeanditcouldguaranteephosphorusremovingeffectiveness.Keywords:denitrifyingphosphorusremoval;nitrogenandphosphorusremoval;technologicalparameter;opera-tionalcontrol—92—环境科学导刊　第28卷　第3期　2009年6月