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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 低碳氮比工业废水生物除氮试验研究赵硕伟
赵硕伟1,宋艳华2,聂颖2 (1.,212001;2.,212018) 研究了低溶解氧(DO)浓度条件下,生物脱氮工艺处理低碳氮比工业废水过程中的亚硝酸盐的变化规律。结果表明:在低溶解氧浓度条件下,该工艺能有效去除氨氮,同时能够实现长期稳定的亚硝酸盐富集。在工艺稳定运行阶段,DO=1.0mg/L时,好氧池亚硝化率平均可达80%以上,氨氮去除率大于90%。 低碳氮比;工业废水;生物除氮;低溶解氧 X703.1 A 0517-6611(2009)27-13216-02ExperimentalStudyonBiologicalNitrogenRemovalProcessofLowC/NIndustrialWastewaterZHAOShuo-weietal (ZhenjiangInstituteofEnvironmentalScience,Zhenjiang,Jiangsu212001)Abstract Thenitriteaccumulationwasstudiedontheconditionoflowdissolvedoxygen(DO)bybiologicalnitrogenremovalprocesstreatingindustrialwastewaterwithlowC/Nratio.Theexperimentalresultsindicatedthatthesystemcouldrealizelong-termstablenitriteaccumula-tionwithhighammoniaremovalrate.Duringthestableoperationstage,settingaDOconcentrationinaerobicreactorat1.0mg/L,itwaspos-sibletoachieveaaveragenitriteaccumulationratioover80%withtheammoniaremovalrateover90%.Keywords LowC/N;Industrialwastewater;Biologicalnitrogenremoval;LowDO 赵硕伟(1960-),男,江苏镇江人,高级工程师,从事环境科学研究。 2009-06-04 ,,、、、,(C/N),[1]。,,,。,,:,。/(A/O)SBR,,,。1 1.1 ,80mm×120mm×270mm(××),SBR120mm×120mm×270mm。、、SBR、。25~30℃,3000~3500mg/L,SRT15d,150%,SBR200%,8.4L/d,HRT28h。,SBR。SBR4h,2h(1.5mg/L),1h,1h。1。1.2 ,:NH4+-N19600~21900mg/L,COD2857~3216mg/L,SS354~406mg/L,pH7.21~7.44。。,,。pH,C/N=3.5~4.0。1.3 :1;2;3;4;5;6;7SBR;8。Note:1,Stirrer;2,Airpump;3,Automaticcontroldevice;4,Peri-stalticpump;5,Anoxicpond;6,Aerobicpond;7,SBRpool;8,Microporousaerator.1 Fig.1 Testinstallation[2],2。:、COD、NO2-N、NO3-N、(DO)pH。1 Table2 ItermsandmethodsofanalysisAnalysisprojectsAnalyticalmethodsandtestdeviceCODNO-2-NN-(1)-NO-3-NTN-DOORION835ApHHI98107pHMLSSSVXS-182 2.1 2.1.1 。,。,,SBR, 陈红红 傅真治,JournalofAnhuiAgri.Sci.2009,37(27):13216-13217,13220,,SBR,SBR,,,。COD350~550mg/L50~100mg/L,,,COD。2。COD2、3。2 CODFig.2 CODremovalefficiencyatthedomesticationstage3 Fig.3 Ammonianitrogenremovalefficiencyatdomesticationstage2.1.2 。,。4(NLR)。,NLRNH4+-N0.183kg/(m3·d)NH4+-N0.640kg/(m3·d)。NH4+-N280mg/L。NH4+-N20mg/L,88%。,DO3.0mg/L,。 5(MLSS)(SVI)。4,SVI,199ml/g103ml/g,。2.2 ,。(DO),7DO(mg/L):2.5、1.8、1.5、1.2、1.0、0.8、0.5。DO4d。,DO,4 (NLR)Fig.4 ThechangesofeffluentammonianitrogenandNLRatstartingphase5 MLSSSVIFig.5 ThechangesofMLSSandSVIatstartingphase。DO=1.0mg/L,88.3%,84.7%。,。,DO=1.0mg/L。2.3 DODO,。:DO=1.0mg/L。。Note:DO=1.0mg/L.Thesameasbelow.6 、Fig.6 Thechangesofinfluentammonianitrogen,effluentam-monianitrogen,nitritenitrogenandnitratenitrogen 61.0mg/L,、、。6(下转第13220页)1321737卷27期 赵硕伟等 低碳氮比工业废水生物除氮试验研究3 、CH4Fig.3 SeasonalvariationofCH4emissionratefromplants,overgroundpartandundergroundpartofplants-、CH4,[8]。3.2 CH4 Singh,CH4CH4[9]。CH4;,CH4。CH4[10-11]。“”-、、3,CH4Singh,CH4:-。“”,,CH4,,-、、CH4,CH4。-、CH4。[1]RASMUSSENRA,KHALILMAK.Atmosphericmethaneintherecentandancientatmospheres:Concentrations,trends,andinterhemisphericgra-dient[J].GeophysRes,1984,89:11599-11605.[2]SAARNIOS,SILVOLAJ.EffectofincreasedCO2andNonCH4effluxfromaborealmire:Agrowthchamberexperiment[J].Oecologia,1999,119:349-356.[3]LEMERJ,ROGERP.Production,oxidation,emissionandconsumptionofmethanebysoils:Areview[J].SoilBiol,2001,37:25-50.[4]马玉寿,郎百宁.建立草业系统恢复青藏高原“黑土型”退化高寒草地[J].草业科学,1998,15(1):5-9.[5]马玉寿,郎百宁,王启基.“黑土型”退化高寒草地研究工作的回顾与展望[J].草业科学,1999,15(2):5-9.[6]尚占环,龙瑞军.青藏高原“黑土型”退化草地成因与恢复问题的研究评述[J].生态学杂志,2005,24(6):652-656.[7]李希来.青藏高原“黑土滩”形成的自然因素与生物学机制[J].草业科学,2002,19(1):20-22.[8]胡启武,吴琴,李东,等.不同土壤水分含量下高寒草地CH4释放的比较研究[J].生态学杂志,2005,24(2):118-122.[9]SINGHSN,KULSHRESHTHAK,AGNIHOTRIS.Seasonaldynamicsofmethaneemissionfromwetlands[J].Chemosphere:GlobalChangeSc,2000,2:39-46.[10]BUBIERJL,MOORETR,BELLISARIOL,etal.Ecologicalcontrolsonmethaneemissionsfromanorthernpeatlandcomplexinthezoneofdis-continuouspermafrost,Manitoba,Canada[J].GlobalBio-geochemCycles,1995,9(4):455-470.[11]DISENB.MethaneemissionfromMinnesotapeatlands:Spatialandsea-sonalvariability[J].GlobalBiogeochem,1993,7:123-142.(上接第13217页)7 Fig.7 Thechangesofammonianitrogenremovalefficiencyandnitrosationefficiency,(NH4+-N20mg/L),NO-2-N200mg/L。5152(,SBR),(NH4+-N75.0mg/L),。,,, 。,。7。,NH4+-N280.1mg/L,NH4+-N12.3mg/L,90%,,75%,80%。DO(1.0mg/L),,。,DO。3 :DO(1.0mg/L)/SBR。NH4+-N280.1mg/L,NH4+-N12.3mg/L,90%。,DO,,80%,90%。[1]贾呈玉,李道棠,杨虹.低碳氮比废水生物脱氮新技术[J].上海环境科学,2003,22(5):349-352.[2]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.13220 安徽农业科学 2009
本文标题:低碳氮比工业废水生物除氮试验研究赵硕伟
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