O1/A/O2,,,,(,100043)[],CODCr、NH3-N。O1/A/O2(//)、、,。:O1/A/O2CODCrNH3-N95%89%;PAM,600~800mg/L1~2mg/L,CODCr50%,。、,《》。[];;;[]X703[]B[]1005-829X(2012)02-0089-04TreatmentofhighlyconcentratedcokingwastewaterbyO1/A/O2processMaXin,WuYunsheng,ZhangTao,KouYande,LiWei(BeijingShougangInternationalEngineeringTechnologyCo.,Ltd.,Beijing100043,China)Abstract:Thewaterqualityofthewastewaterfromcokingplantsiscomplex.ThemaindifficultyliesingettingridofthehighlyconcentratedCODCr,NH3-Nandcyanide,etc.O1/A/O2(pre-aeration/anoxic/oxic)treatmentprocesshasbeenusedasthecore,andpre-oilremovingpretreatmentandpost-positivecoagulationsedimentationasadvancedtreatmentprocessbythewastewatertreatmentprojectofacokingplantatShougang,obtainingprettygoodtreatmenteffectiveness.TherunningresultsindicatethattheremovingeffectofO1/A/O2ontheremovingratesofCODCrandNH3-Nareabove95%and89%,respectively.Intheprocessofcoagulationsedimentationprocess,polyferricsulfateasflocculantandPAMascoagulantaidareused.Whentheirdosagesare600-800mg/Land1-2mg/L,respective-ly,theirCODCrremovingratesareabout50%,andthedecoloringeffectivenessisgood.Afterthepretreatment,bio-chemicaltreatmentandadvancedtreatment,themainpollutantindexintheeffluentmeetthesecondclassrequire-mentsoftheIntegratedDischargeStandardofWastewater.Keywords:anaerobicprocess;aerobicprocess;denitrogen;cokingwastewater、、,。,、、、,〔1〕。、、,:、、。、〔2-4〕。A/OA/O/OA2/O〔5-9〕。,,,A/O。A/O,:(1)CODCr,,,,;(2),CODCr,,,CODCr。CODCr、、、,A/O,O1/A/O2,132220122IndustrialWaterTreatmentVol.32No.2Feb.,201289CODCr,2。11.1,、、。、,。1.2。,1,《》(GB8978—1996)。1:pH、(),mg/L。2O1/A/O2A/O,—,、,A/OCODCr6000~9500mg/L,。O1/A/O2A/O:(1),,AO2;,、,,。,,。、。(2),,,CODCr、NH3-N,。、,CODCr,CODCrNH3-N,。33.1,,、、4。12。1O1/A/O223.2>50mg/L,,,;,,,,。CODCr6000~9500≤150NH3-N50~400≤25550~1400≤0.5pH7.5~9.56~920~30≤1.010~20≤0.550~100≤10≤80150~350≤15012,HRT=3h,12,HRT=1.2h,12,HRT=31h,,,12,HRT=16h,,DO2~6mg/L,Na2CO3,pH=7~8,2,HRT=2h,0.88m3/(m2·h),113,HRT=20h,,DO0.5mg/L13,HRT=56h,,DO2~5mg/L,Na2CO3pH2,HRT=4h,0.79m3/(m2·h),1,31,HRT=0.33h,()、(PAM)(NaOH)2,HRT=3.2h,0.88m3/(m2·h),1,HRT=4h,0.79m3/(m2·h);2012-02,32(2)90,3h。,1.2h。3.3〔10〕,O1/A/O2。,,,8h,16h,24h,,,。,。,,。、,,31h。,,16h。,,20h。,,56h。,、。3.4,CODCr、。,,PAM。20min,,NaOHpH。,0.88m3/(m2·h),3.4h。CODCr≤150mg/L,≤70。3.5,99%,12h。2,75%。4,,3。3mg/L3,,CODCr、、,。CODCr、、。600~800mg/L、1~2mg/LPAM,CODCr50%,。O1/A/O2CODCrNH3-N2、3。2O1/A/O2CODCr3O1/A/O2NH3-N2,CODCr3500~5800mg/L,CODCr280mg/L,O1/A/O2CODCr93%。,CODCr150mg/L,《》CODCrNH3-N7200180102016300460012570013250117080143220230143.60.8120120120.20.4602012-02,32(2),:O1/A/O291。3,CODCr,70%98%,,。2O1/A/O2,CODCr,CODCr。3,36~285mg/L,O1/A/O2NH3-N89%,NH3-N<25mg/L。O1/A/O2,,,。O1/A/O2。O1,,A。O2,A,CODCrNH3-N。:,,,,;,,,R=3~5,O1/A/O2。CODCr、NH3-N,CODCr、NH3-N95%89%。O1/A/O2,,,,,,。CODCr,,,。,,,、,。5(1)O1/A/O2,、,《》,。(2),。(3)O1/A/O2,,。CODCr3500~5800mg/L,NH3-N36~285mg/L,CODCrNH3-N95%、89%。(4)O1/A/O2CODCr70%、98%,。(5)PAM,600~800mg/L、1~2mg/L,CODCr50%,。[][1],.[J].,2001,17(4):97-99.[2],,,.[J].,2002,18(7):20-22.[3]KargiF,UygurA.Nutrientremovalperformanceofasequencingbatchreactorasafunctionofthesludgeage[J].EnzymeandMicrobialTechnology,2002,31(6):842-847.[4]BaezaJA,GabrielD,LafuenteJ.Effectofinternalrecycleonthenitrogenremovalefficiencyofananaerobic/anoxic/oxic(A2/O)wastewatertreatmentplant(WWTP)[J].ProcessBiochemistry,2004,39(11):1615-1624.[5],,.A2/O[J].,2007,23(14):4-7.[6],,,.A2/O2[J].,2008,28(1):30-33.[7].——[D].:,1996.[8],,,.//[J].,2011,27(1):16-19.[9],,.:,101514069[P].2009-08-26.[10],.[M].:,1999:531.[](1968—),1994,。:,:010-88298642,E-mail:wys_886@163.com。[]2011-09-15()2012-02,32(2)92