pH对同步硝化反硝化生物膜内溶解氧分布的影响

99环境工程学报Vol．9No．920159ChineseJournalofEnvironmentalEngineeringSep．2015pH11*21．5100062．519000pH6.5～8.5pHSBBRTNpHpHpH=8.070%2000μm0A～FDOpH=8.5pHDOpH。pHX703.1A1673-9108201509-4233-06EffectofpHvalueondistributionofdissolvedoxygenDOduringsimultaneousnitrificationanddenitrificationSNDinbiofilmHuangShengjuan1RongHongwei1LinMengxia21．SchoolofCivilEngineeringGuangzhouUniversityGuangzhou510006China2．ZhuhaiUrbanDrainageCo．Ltd．Zhuhai519000ChinaAbstractThesequencingbatchbiofilmreactorSBBRwasusedtotreatwastewater．Toconfirmthepar-titionofmicroenvironmentduringSNDinbiofilmweinvestigatedtheeffectofpHvalueonTNremovalandDOdistributioninthesystem．TheresultsshowedthattheTNremovalrateincreasedwiththeriseofpHanditwas70%whenthepHwas8.0．AlsotheDOinbiofilmdeclinedwhilethedepthincreasedandtheDOwas0at2000μm．TheDOatA～FwasinfluencedsignificantlywhenpH=8．5andtheaverageDOatsamedepthun-derdifferentpHdecreasedslightlywiththepHincreasing．KeywordsSNDbiofilmpHmicroelectrodeDO5127813321477027S201301001394313C012015－04－162015－05－261992—。[e-mail]*[e-mail]、DO、、C/N12。。、3DO4。SND5-7。SBBR、8pHpHTN、SND。11.12SBBR9SBBR。SBBR14cm70cm10L1。1050mm。、、、2。SBBR26～28℃。SBBR2.56L16cm×16cm×10cm。1SBBRFig.1Schematicofexperimentalsystem2、3。UnisensePA2000。2Fig.2Microelectrodedetectionsystem1.2COD227～307mg/LTN21.5～29.6mg/LNH+4-N19.8～27.5mg/L3Fig.3MeasuringpointsinbiofilmNO－2-N0～0.4mg/LNO－3-N0.3～2.4mg/L。、NH4Cl、KH2PO4、CaCl、MgSO4、FeSO43g/10LNH4Cl1.2g/10LKH2PO40.25g/10LCaCl20.2g/10LMgSO40.3g/10LFeSO40.02g/10L。1.3CODNH+4-NNO－3-NNO－2-NN-1--9DOpHWTWUnisense。1.4SBBR。DO3mg/L8～8.5h2。25dCOD90%85%TN30%。SBBRNaHCO3pH6.5±0.17±0.17.5±0.18±0.18.5±0.1。TNSND3mm。22.1pH410dTN、SNDTNpH=870%pH=874%SNDpH=7.590%pHTNSND43249pH4pHFig.4EffectofpHoneffluent。5pHTN60%SND83%pH6.5～8.5SBBRpHTNSND。pHpH8.0～8.4pH7.0～8.010。pH11。pH＞8pHpH=8TNpH=7.512SBRSND。13pH7.5～8.0。2.2DOSBBRTN100μmDO=3.5mg/L。5a500μmDO2～2.8mg/L1000μmDO＞0.8mg/LDO0.2mg/L1500μmDO0.2mg/L＞1mg/L5DOFig.5Distributionofdissolvedoxygenindifferentdepths53249、2000μmDO0.1～0.3mg/L＞0.5mg/L。500、1000、15002000μm414。500～2000μm3mg/L0.2mg/L。2.3pHDO6pH63A～FDOpHDO＞3mg/L2000μm0、。152.0～2.5mm2000μm0。pHDOpH=8.5A～FDOCA、BE、FCCDO6pHDOFig.6EffectofpHondistributionofdissolvedoxygen63249pHpH=6.5D1200μm0pH=77.588.5CDO1600μm、1300μm、1400μm800μm0DOC、DA、BE、F。pH=8.5CDO800μm0pHpHpH=8.5CpHDO。6.5～8.5DOpHpHpHDO。31DO=3.5mg/LpH6.5～8.5TNSNDpH=8TN70%pH=7.5SND90%。2500～2000μm。3pH2mm0DOpH=8.5pHDOpH。1PochanaK．KellerJ．Studyoffactorsaffectingsimultane-ousnitrificationanddenitrificationSND．WaterScienceandTechnology199939661-682QiRongYangKunYuZhaoxiang．TreatmentofcokeplantwastewaterbySNDfixedbiofilmhybridsystem．Jour-nalofEnvironmentalSciences2007192153-1593．．2004273102-104YangLinLiXiaomingZengGuangmingetal．Forma-tivemechanismandimpactfactorsforsimultaneousnitrifi-cationanddenitrification．EnvironmentalScience＆Tech-nology2004273102-104inChinese4．．200114133-35LüXiwuLiCongnaYuheiInamori．EffectofDOconcen-trationandMLSSonsimultaneousnitrificationanddenitrifi-cation．UrbanEnvironment＆UrbanEcology200114133-35inChinese5．．2009355167-171PengZhaoxuPengYongzhenZuoJinlong．Studyofinflu-encefactorsonsimultaneousnitrificationanddenitrifica-tion．Water＆WastewaterEngineering2009355167-171inChinese6．．200828119-12RongHongweiPengYongzhenZhangChaoshengetal．Studyonthenitrogenremovalbysimultaneousnitrificationanddenitrificationinsequencingbatchbiofilmreactor．In-dustrialWaterTreatment200828119-12inChi-nese7．pH．20071910-14JiangTishengYangQiShangHaitaoetal．EffectsoftemperatureandpHonnitrogenandphosphorusremovalbyactivatedsludge．ChineseJournalofEnvironmentalEngi-neering20071910-14inChinese8．．200618132-35ZhouXiaohongShiHanchangCaiQiang．StudyProcessonmicro-profilesofbiofilmdeterminedbymicroelectrodes．TheAdministrationandTechniqueofEnvironmentalMoni-toring200618132-35inChinese9．4．200210．pH、．1994144308-313XuYatong．TheinfluenceofpHvaluesandtemperatureondenitrification．ChinaEnvironmentalScience1994144308-313inChinese11．．201038364-67ZhengQiaodongZhongLinaYaoShanjing．Biologicaldenitrificationbymixedcultureofnitrifyinganddenitrif-yingbacteria．ChemicalEngineering201038364-67inChinese12．pH73249．20087350-54FangQianZhangChaoshengZhangKefangetal．EffectofsludgeageandpHvalueonsimultaneousnitrifi-cationanddenitrificationSND．JournalofGuangzhouUniversityNaturalScienceEdition20087350-54inChinese13．pH．2014411972-74DuXinZhangChaoshengZhangYingminetal．StudyoneffectofsludgeageandpHvaluesimultaneousnitrifi-cationanddenitrification．GuangdongChemicalIndustry2014411972-74inChinese14．．2012325850-854SongHuiminZhouXiaohongZhangYongmingetal．Characterizationofbiofilmindenitrificationbiofilterbasedonmicroelectrodetechnique．ChinaEnvironmentalSci-ence2012325850-854inChinese15．．2005262113-116WuYingxiCaiQiangZhouXiaohongetal．Character-isticsofdynamicmembranebasedonoxygenmicroelec-trode．EnvironmentalScience2005262113-116inChinese8324