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A2/O张学洪 李金城 刘 荃 根据桂林市排水公司第四污水净化厂的实际运行情况,分析了影响A2/O工艺除磷效果的三个因素:溶解氧、硝酸盐氮、污泥龄。并采取了提高除磷效果的一些措施,实践表明这些措施对提高除磷效果具有明显的作用。 A2/O工艺 除磷 溶解氧 硝酸盐氮 污泥龄 ,BODSS,、,、,、,。,,、。A2/OBOD,A2/O,pH、、BOD5、TP,,(:、),,,。1 1.1 A2/O、,1。1 A2/O,BOD、SS。A2/O、。,,,;,,,。,,;,,,。BOD,。,。、、,,,。,,。,,。1.2 2 1996,10m3/d,A2/O,2。:BOD5=120mg/L,SS=220mg/L,=14 Vol.26 No.4 2000 DOI:10.13789/j.cnki.wwe1964.2000.04.00525mg/L,=8mg/L;:BOD520mg/L,SS20mg/L,15mg/L,1.0mg/L。19961997,(1)。1 (199612～19985) BOD5/mg/L1254.3SS/mg/L2004.4/mg/L256.3/mg/L158.02 A2/O2.1 A2/O,,。,,(DO2mg/L),,。2.1.1 ,,2.0mg/L,,,。2。2 TPMLSS/g/LTP/mg/L0h0.5h1h2h3h5h7h1#2.20410.95.174.593.513.643.512.422#4.6336.903.093.773.093.772.272.203#2.2427.563.641.892.701.091.481.224#2.29110.16.234.733.863.503.093.18 :1#5h+;2#+;3#5h+;4#1/3+2/3。2:(DO2mg/L),,1h。A2/O,1h,,/9h。,,5h,/,,。2.1.2 、、,,,。,,。,,;,,,,。20L20L,(),,,。3。3 TPMLSS/g/LTP/mg/L0h2h4h6h8h10h12h14h16h1#3.3201.483.486.489.7111.612.011.613.015.22#6.9164.277.9914.818.524.726.028.934.335.0 :1#;2#。3:,8h,,,,,。(HRT)8h,,。。/,,。,,。,,,。15 Vol.26 No.4 2000,,,,,TP。50mg/L,100mg/L。,TP。,。,。2.2 NO-3-NNO-3-N:,NO-3-N,。20L20L,NaNO3NO-3-N,(),,,4。4 NO-3-N 0h1h3h5h7h9h11h13h15h1# /mg/(g·MLSS)00.080.561.322.242.273.30NO-3-N/mg/L21.20.60.40.20.102# /mg/(g·MLSS)0000.090.130.410.691.161.9NO-3-N/mg/L9.89.89.84.01.01.00.50.30.3 :,NaNO3,1#NO-35mg/L,2#NO-310mg/L。4,NO-3-N,。NO-3-N,,,。,。NO-3-NN2,NO-3-N2mg/L,。,NO-3-N1mg/L,NO-3-N3mg/L,1∶1,,NO-3-N。2.3 ,A2/O。A2/O,,,,8d。,,8d。51998619995。5 1998.67891011121999.12345TP/%35.427.763.749.267.958.456.636.036.654.161.171.8PO3-4-P/%53.535.181.056.984.375.559.339.735.058.572.584.2/d15.415.69.710.28.68.47.912.711.38.58.410.6 5,19988、10、11、12,19993、410d,TP55%。19986、715d,TP35.4%27.7%。,,。。1998619995,NH3-N10mg/L,NH3-N25mg/L,PO3-4-P1mg/L,,8～10d。3 A2/O,:(1),,。(2)NO-3-N,/,10%。(3)8～10d,。16 Vol.26 No.4 2000 (4),,,。。,,,1.5mg/L。,(8.0-1.5)×100000×365=237250kg。,,,。参考文献1 RichardIS,etal.PhosphorusandNitrogenRenovalFromMunici-palWastewater.NewYork,Lew'sPublishes,1991.141～2012 ,..,1994,20(2):18～213 ..:,19964 .A+A2/O.,1998,24(3):18～225 ,..,1999,25(8):33～35⊙:541004 :(0773)1261855350,13707737123 :1999-12-29氨氮废水处理过程中的好氧反硝化研究吕锡武 李 峰 稻森悠平 水落元之 采用序批式反应器处理氨氮废水,试验结果验证了好氧反硝化的存在,好氧反硝化脱氮能力随混合液溶解氧浓度的提高而降低,当溶解氧浓度为0.5mg/L时,总氮去除率可达到66.0%。并结合理论分析,对好氧反硝化的机理进行了探讨。 氨氮 硝化 好氧反硝化 溶解氧 碳氮比0 :,,,,,。,(),A/O。,,;,,。,,,,。,。,,,(Aerobicdenitrification)[1～2]。30%[3]。。,,。1 1.1 ,100mm,700mm,5L。12h,5,0.5h,3h,7h,1h,0.5h。28℃,3L(2L),25mL85d。1.2 ,17 Vol.26 No.4 2000WATER&WASTEWATERENGINEERINGVol.26No.4April2000CONTENTSWaterSupplyforMulti-StoryBuildingwithoutRoofWaterTankinHangzhouHongJueminetal(1……………………)Abstract:Thechangeofhydraulicstatuswasinvestigatedinthewatersupplysystemofmulti-storyresidentialbuildingswheretheroof-locatedwatertankhasbeenabandoned.Thestartingplantobuildsuchasystemisdescribed.Theneededinvestmentandoperatingfeearealsoestimated.DEOxidationDitchTreatingUrbanWastewaterYuanHonglinetal(6……………………………………………………)Abstract:ThetreatmentefficiencyoftheDEoxidationditchwasinvestigatedinBeishiqiaoWastewaterTreatmentCenterinXi'an.TheresultshowsthatthesystemhasachievedaremovalofCOD,TNandTPashighas87.5%～91.6%,63.6%～66.9%and85.0%～93.4%respectivelyandtheeffluentqualityisbetterthantheclassIIoftheNa-tionalStandard.Oneoftheprincipalfeaturesofthissystemisutilizingthehighadsorptionabilityofsludgeintheselec-tivebasinandthedecompositionabilityofbacteriaintheoxidationditchtoachievehighremovaloforganicandnutrientmatters.ApplicationofKMnO4-PACProcessforWaterPurificationZhaRenguangetal(9…………………………………………)Abstract:TheoperatingpropertyofcompositeKMnO4-PAC(powderactivatedcarbon)processwasevaluatedandtheireffectstoremovethecolority,tasteandturbidityofslightpollutedrawwaterandtoreducethealumconsumptionhavebeenprovedevidently.Thisprocesswillbeaneconomical,simpleandconvenientalternatetoimprovetheefficien-cyofoldwaterworks.Fe-MnRemovalandHardness-TSSReducinginWaterLiJizhenetal(12……………………………………………………)Abstract:Theresultsofjartest,benchscaleexperimentandpilotplantoperationshowthattheAeration-LimeAl-kalizationprocesscanreducetheTHandTSSlevelsimultaneouslywiththeremovalofFeandMn.Thetreatedwaterisquitegoodtomeettherequirementofnationaldrinkingwaterstandard.PracticeonBiologicalPRemovalbyA2/OProcessZhangXuehongetal(14…………………………………………………)Abstract:TheeffectsofthreefactorswhichinfluencethephosphorusremovalbyA2/Oprocessnamelydissolvedoxygencontents,NOx-N,andactivatedsludgeageareanalyzedfromtheviewofengineeringpracticeatThe4thWastewaterTreatmentPlantinGuilin,GuangxiProvince.Somemeasureshavebeenadoptedtoforcetheefficiencyofphosphorusremoval.ThesucceededresultshowsthatthePremovalhasbeenimprovedevidently.StudyonAerobicDenitrificationduringtheAmmoniaWastewaterTreatmentLuXiwuetal(17……………………………)Abstract:Theexperimentalresultsofammoniawastewatertreatmentbysequentialbatchreactors(SBRsystem)showedthatdenitrificationhappenedevidentlyduringtheaerobicperiodanditcontributedaconsiderableparttothewholenitrogenremovalbytheprocess.Basedonexperimentalresultsandtheoreticalanalysis,thispaperalsomadesomeprobesintothemechanismofaerobicdeni