低温下多模式AAO流程脱氮性能比较姚重华

4　11环境工程学报Vol.4,No.11201011ChineseJournalofEnvironmentalEngineeringNov.2010AAO姚重华1　王国华2　谭学军2　李池鸿1　张　辰2(1.,200237;2.,200092)　　AAOAAO,、TCOD、、、、。13℃,1B,AAO;,,AAO;10℃,,AAO,;,、,、、,。　AAO　　　　X703.1　　　A　　　1673-9108(2010)11-2509-06ComparisonbetweennormalandinverseAAOprocessforNremovalatlowtemperaturesYaoChonghua1　WangGuohua2　TanXuejun2　LiChihong1　ZhangChen2(1.SchoolofResourceandEnvironment,EastChinaUniversityofScienceandTechnology,Shanghai200237,China;2.ShanghaiMunicipalEngineeringDesignGeneralInstitute,Shanghai200092,China)Abstract　AcomparisonofNremovalbehaviorsbetweenthenormalAAOandtheinverseAAOprocessatlowtemperatureswasconductedthroughmodelingandsimulation.Theconditionsforthecomparisoncovertheflowrate,TCOD,ammoniaconcentration,totalphosphorusconcentration,sludgerecycleratio,mixedliquorre-cycleratio,dissolvedoxygenconcentrationinaerationtank.Theresultsshowthat,inordertomeettherequire-mentofgrade1Boftheeffluentstandard,at13℃forremovingammonia,theinverseAAOprocessisbetterthanthenormalAAOprocess,andforremovingtotalnitrogen,highmissedliquorrecycleratioshouldbeconsideredfortheinverseAAOprocess.Andat10℃,forremovingammonia,thenormalAAOwithniceselectionofsludgerecycleratioanddissolvedoxygenconcentrationisbetterthantheinverseAAO,andforremovingtotalni-trogen,thereisnodifferencewhentheinverseorthenormalAAOprocessisapplied,aslongasallconditionsa-bovereferredshouldbemonitoredandcontrolledcarefully.Keywords　multiplemodeAAOprocess;lowtemperature;nitrogenremoval;computersimulation:(072312003):2009-09-12;:2009-12-06:(1946～),,,、。E-mail:[e-mail]　　AAO2。,、,,、。,,,、。AAO,[1]。AAO。、[2～4],AAO。AAO,,,。,AAOAAO。1　1,,1～5、、、4,2800、11200、18800、5600037800m3。1.8×105m3/d。1　AAOFig.1　SchematicdiagramofAAOprocessCOD、、,ASM2D[5],CSTR,,Takács[6]。,MatLab/SimuLink,[7,8]。TCOD=140～340mg/L,SHN3=25mgN/L,=3.7mgP/L。2　2.1　AAO2。1B,13℃,10℃()。2(a),AAO13℃150000m3/d,AAO220000m3/d;AAO10℃170000m3/d,AAO170000m3/d。2(b),10℃13℃,AAOAAO,170000m3/d230000m3/d。,13℃,AAOAAO,10℃、AAO。,AAOAAO。2　AAOFig.2　InfluenceofflowrateonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocess2.2　TCODTCODAAO3。3(a),AAO13℃TCOD245mg/L,AAO315mg/L;AAO10℃TCOD250mg/L,AAOTCOD250mg/L。3(b),10℃AAOAAO,250mgCOD/L;13℃AAOAAO,340mgCOD/L。,,13℃251011:AAO3　TCODAAOFig.3　InfluenceofinfluentTCODonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocessAAOAAOTCOD,10℃、AAOTCOD。,AAOAAOTCOD。2.3　AAO4。4(a),AAO13℃21.5mgN/L,AAO29mgN/L;AAO10℃24.5mgN/L,AAO21.5mgN/L。4(b),13℃AAO,AAO27.5mgN/L;10℃AAO25mgN/L,AAO24mgN/L,。,,13℃AAOAAO;10℃,AAOAAO。,13℃AAO,10℃AAOAAO。4　AAOFig.4　InfluenceofammoniaconcentrationininfluentonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocess2.4　AAO5。5(a),3.7～4.8mgP/L,AAO13℃,AAO;10℃AAO,AAO。5(b),,10℃、AAO,13℃、AAO。,,13℃251145　AAOFig.5　InfluenceofTPconcentrationininfluentonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocessAAOAAO;10℃、AAO。,AAOAAO。2.5　AAO6。6(a),13℃AAO,AAO0.5,AAO0.58(0.58);10℃AAO0.9(0.9),AAO。6(b),,10℃、AAO,13℃、AAO。,,13℃AAOAAO;10℃AAO,AAO。,AAOAAO。6　AAOFig.6　InfluenceofinternalrecycleratioonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocess2.6　AAO7。7(a),13℃AAO,AAO0.5,AAO0.8;10℃AAO0.68,AAO0.53。251211:AAO7　AAOFig.7　InfluenceofexternalrecycleratioonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocess7(b),13℃AAOAAO;10℃AAO0.63,AAO0.52。,,10℃13℃AAOAAO。2.7　AAO8。8(a),13℃AAO1.4mgO2/L,AAO　;10℃、AAO。8(b),10℃AAOAAO;13℃AAODO1.2O2/L,AAO。,,13℃AAO,AAO;10℃,、AAO。8　AAOFig.8　InfluenceofDOconcentrationinaerobictankonconcentrationofammoniaandtotalnitrogenineffluentfromnormalorinverseAAOprocess251341　AAOTable1　AvailabilityofnormalorinverseAAOprocessunderdifferenttechnicalconditionsatlowtemperatures13℃10℃AAO√√√√√√√TCOD√√√√√√√√√√√√√√√√××√√√××√√√√√√××××3　　AAO,:(1)13℃,,AAO;,,AAO;(2)10℃,,AAO,　;,、,、、,。[1],..,2008,24(24):23-27[2],,,..,2006,32(8):18-21[3],,..,2001,21(5):569-572[4],,,..,2007,24(2):29-33[5]HenzeM.,GujerW.,MinoT.,etal.ActivatedSludgeModel,No.2d,ASM2D.WaterScienceandTechnology,1999,39(1):165-182[6]TakácsI.,PatryG.G.,NolascoD.Adynamicmodeloftheclarification-thickeningprocess.WaterResearch,1991,25(10):1263-1271[7].(2).:,2005.1-78[8],,,..,2009,29(10):1-82514