AO工艺处理混合化工废水的生产实践高兴波

生产调优,2000,8(1):39～43SCIENCE&TECHNOLOGYINCHEMICALINDUSTRY:1999-08-09;:1999-11-10:(1960-),(),,、,1983。,、、、,。《“”》《》。:1008-0511(2000)01-0039-05A/O高兴波1,谢　锐2,张立桅1,赫春玲1,王嘉君1,韩晓慧3(1.,　132021;2.,　132021;3.,　132021)　:混合化工废水成分复杂且多变。笔者针对某化工集团公司的水质特点,深入研究和探讨了生物脱氮机理、技术及其影响硝化和反硝化的各种因素。生产实践结果表明,A/O工艺处理混合化工废水的效果优于传统的活性污泥法,主要水质排放指标COD、BOD5、氨氮、SS等达到了国家一级排放标准,这一成功的生产实例为A/O工艺的广泛应用提供了必要的参考依据。:A/O工艺;化工废水;生产实践:TQ085　　:A　　(16t/d)、COD、、3～4,365825、、、、、,。1980,,,COD55%,COD200mg/L,8%,,。“”30t/a,,,,。。,,1。1　　　　　COD/(mg·L-1)100BOD5/(mg·L-1)30/(mg·L-1)25SS/(mg·L-1)70pH6～9/801　,,COD,[1]。、[2],:(1):RCH2NH2COOH+O2RCOOH+CO2+NH3(2):NH+4+3/2O2NO-2+H2O+2H++NO-2+1/2O2NO-3+NH+4+2O2NO-3+H2O+2H++(3):DOI:10.16664/j.cnki.issn1008-0511.2000.01.0206NO-3+2CH3OH6NO-2+CO2+4H2O6NO-2+CH3OHN2+3CO2+H2O+6OH-A/O80。,,。,,。1988,A/O,、、。A/O,。A/O,,COD,COD,,,A/O。A/O,,1。2　19969,3.8,,A/O24m3/d。A/O、、,A/O,。、,DCS,,,(0.45t/kt,0.38t/kt)、、。2。2　A/O　　　　　COD/(mg·L-1)BOD5/(mg·L-1)/(mg·L-1)/(mmol·L-1)pHSS/(mg·L-1)3651437879～6115100302519～670/%779079——66:10000m3/h;:BOD5/COD0.4;:A+O=4+12=16h;:20～30℃;:100%;:0;MLVSS:2100mg/L;:100;:0.05kg/kgvss·d;:0.05kg/kgvss·d。　　:pH=6.2,A/O,,COD,,A/O,3,4。3　(19988～10)　　　　　COD/(mg·L-1)BOD5/(mg·L-1)/(mg·L-1)/(mmol·L-1)pHSS/(mg·L-1)507.4223.353.24.49.8～7.3169.681.610.322.60.67.6～5.540.5425.8213.030.63.8—129.1/%83.995.457.5——76.1:6500m3/h;:BOD5/COD=0.44;:A+O=6+18=24h;:25～32℃;:70%;MLSS:(4500～5500)mg/L;MLVSS:65%～70%。·40·　　　　　　84　(19992～4)　　　　　COD/(mg·L-1)BOD5/(mg·L-1)/(mg·L-1)/(mmol·L-1)pHSS/(mg·L-1)459.6186.950.32.79.4～6.194.689.410.122.50.57.6～5.018.1370.2176.827.82.2—76.5/%80.194.655.3——80.1:6500m3/h;:BOD5/COD=0.41;:A+O=6+18=24h;:18～23℃;:70%;MLSS:(4500～5500)mg/L;MLVSS:65%～70%。3、42,COD507.4mg/L459.6mg/L,BOD5223.3mg/L186.9mg/L,365mg/L143mg/L,BOD5/COD0.440.41,,53.2mg/L50.3mg/L,,6500m3/h,A/O24h,:①COD81.6mg/L89.4mg/L,BOD510.3mg/L10.1mg/L,,A/OCOD83.9%80.1%,BOD595.4%94.6%,。②22.6mg/L22.5mg/L,,A/O57.5%55.3%,8%,。,。。2,7mmol/L,4.4mmol/L2.7mmol/L,。34,3.8mmol/L2.2mmol/L,1mg/L0.143mmol/L,26.6mg/L15.4mg/L,30.6mg/L27.8mg/L,,。:,0.6mmol/L0.5mmol/L,。,,。3　,,。3.1　CODA/OCOD,A/O,COD。CODA/O2。1,COD,,COD,,。A/O。2,COD,,CuⅠ-CuⅡ,,,A/O。,COD,2,。COD,。COD,COD,。,COD,。。,,,。,。3.2　。,,。·41·1,.A/O　　　,HCO3-,,,。1mg7.14mg(CaCO3)[2]。90%,7。,,。,。,。,(CaCO3)5,,。3.3　A/O,,、[3],、,,0.310.49,COD153.3mg/L100mg/L,。COD15%,A/O12.6%64.6%,ACOD30.1%60.9%,0COD63.2%34.7%。A/O、AO,。A/O。3.4　,,,,,,。1,,,,。,2:①,,(nvss),(VSS),(MLVSS),、,。②,,,,,,,。2,,,、、、,。,,,,,。,,,。4　A/O,,,,COD,COD,COD,A/OCOD、,。,,A/O,A/O,,,。[　　　][1]　.[M].1.:·42·　　　　　　8,1993.[2]　.,[M].1.:,1996.[3]　,.[J].,1994,1.PRODUCTIONPRACTICEOFTREATINGMIXEDCHEMICALWASTEWATERBYANOXIC/OXICTECHNOLOGYGAOXing-bo1,XIERui2,ZHANGLi-wei1,HAOChun-ling1,WANGJia-jun1,HANXiao-hui3(1.SewageTreatmentPlantofJilinChemicalIndustryStockLimitedCompany,Jilin　132021,China;2.ResearchInstituteofJilinChemicalGroupCorporation,Jilin132021,Chi-na;3.JilinChemicalGroupCorporation,Jilin132021,China)Abstract:Thecompositionofmixedchemicalwastewateriscomplexandvariable.Writerresearchesandde-velopsmechanismandtechnologyofbiologicaldenitrificationandallsortsoffactorsinaffectingnitrificationanddenitrificationdeeplyinaccordancewithwastewaterqualitycharacteristicsofonechemicalgroupcom-pany.Theresultofproductionpracticestate:resultofAnoxic/Oxictechnologyexceedstraditionalactivatedsludgemethodintreatingmixedchemicalwastewater.ThemainwastewaterqualitydischargeindicesCOD、BOD5、NH3-N、SSetc.Canmeetnationalonegradewastewaterdischargingstandard.Thesuccessfulproduc-tionexampleprovidesnecessaryreferencebasisforAnoxic/Oxictechnologyextensiveuse.Keywords:Anoxic/Oxictechnology;Chemicalindustrywastewater;Productionpractice　。1500t/a、。,。:,。。,1500t/a,。,,、,。(),Q/JH2139-1997;,,。、,,,,。(石明霞)·43·1,.A/O