AO脱氮工艺的控制策略和应用性研究马勇

A/O马　勇1　王淑莹2　王晓莲2　彭永臻1,2(1.,150090;2.,100022)　　A/O,DO、,、、,A/O。A/O。　A/O　　DO　ControlstrategiesandapplicationresearchofA/OnitrogenremovalprocessMaYong1　WangShuying2　WangXiaolian2　PengYongzhen1,2(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090;2.SchoolofEnvironmentalandEnergyEngineering,BeijingPolytechnicInstitute,Beijing100022)Abstract　AccordingtooperationstatusandeffectfactorsofA/Onitrogenremovalprocess,inthisarticle,im-portantcontrolstrategiesandideaswhichusingon-linesensorscontinuouslymeasuredissolvedoxygenconcentration,ammoniumconcentrationandnitrateconcentrationinaerationbasinandbasedonthemtoadjustaerationintensity,in-ternalnitraterecycle,substratedosingandtheratioofnitrificationvolumeanddenitrificationvolumetoprotectgoodef-fluentareintroduced.TheforeignrecentapplicationandresearchaboutA/Onitrogenremovalprocessarealsosimplypresented.Keywords　A/Onitrogenremovalprocess;on-linesensor;DOconcentration;automaticcontrol:(50138010):2002-11-27;:2003-01-14:(1976～),,,。　　、。A/O,,。,。,,。1　A/OA/O1。,、,,[1]。,:①:、;②:、、。:①:、、COD/N、COD;②:、、、。,,,,。,、,,,、,1.5—2.0mg/L,。410Vol.4,No.10200310TechniquesandEquipmentforEnvironmentalPollutionControlOct.20031　A/OFig.1　Flowchartandon-linesensorpositionofA/Onitrogenremovalprocess1.1　,:(1),,。(2),,DO2.5mg/L,,DO。(3),,。,,。1.2　(1)(),0.2—0.3,,0.5。,、。(2)C/N、、。(3),,,。,,,。0%—300%。(4),DO。DO。1.3　(1),,,。(2),,,,,,,;COD/N,。2　A/OA/O、,。(1)(2a)。。①。,,DO,,。②,A/O/(,)()。DO,1910　:A/O2　Fig.2　Ammoniaandnitratecontroller,,/;,/,。,(),。(2)DO。,DO,,DO2mg/L,,,DO2mg/L,A/O。,DO。,DO,DO,。DO,。(3)(2b)。。/,,。。,,,,;,,,,。3　A/OT.J.J.Kalker[2],,3:、/。,(low-levelcontroller),DO,DO;(high-levelFLC),DO。,、。e-NH4-NδNH4-N,T()δ。,(relaycontroller)(fixed-ratiocontroller),10%23%。P.Balslev[3]、,A/O。、,。、、,5:204(1)。:①,DO2mg/L;②,(DO0)。(2),DO,DO。(3),。(4)—。,,DO2mg/L。(5)。①+,400%。②DO,100%。③+DO,。,,,。S.A.Manesis[4]。、、DO、、BOD5,、,3,HI()、OK()LO();5,VH()、HI()、OK()、LO()VL()。50,27,11,12。Patras,,、,,。J.Suescun[5]Vitoria。,,DO;DO。,(),DO。,,,,;,,,,,。,,1mg/L。,,,2mg/L,8mg/L。M.K.Nielsen[6]、DO(supertuningandreporting,STAR)Sydkysten,STAR30%,,。STAR:①;②DO;③;④;⑤。,,。,STAR,,,。,,。K.Hoen[7]A/O。6,2,2,2,/。、,。:①,/。5mg/L,4;4.8mg/L,3;,1.8mg/L,,2;2mg/L,13。②,,。③。2110　:A/O16mg/L,;15.9mg/L,。,,,、。J.A.Baeza[8]A2/O。19L、328L160L,,。,,:(1)。()。(2)。0.5,,1。(3)1DO。1mg/L,(DO0);1mg/L,,30min(DO3mg/L),60min(DO0)。(4)2DO。0.3mg/L,(DO0);0.3mg/L,(DO3mg/L)。(5)3DO。1—2,DO3mg/L;4,DO1mg/L。:,11%,49%64%。4　　、DO,,,A/O。,,,,,。,。[1]E.J.Leeuw.Optimizationofnutrientremovalwithon-linemon-itoringanddynamicsimulation.Wat.Sci.Tech.,1996,33(1):203—209[2]T.J.J.Kalker,etal.Fuzzycontrolofaerationinanactivatedsludgewastewatertreatmentplant:Design,simulationandevaluation.Wat.Sci.Tech.,1999,39(4):71—78[3]P.Balslev,etal.Nutrientsensorbasedreal-timeon-linepro-cesscontrolofawastewatertreatmentplantusingrecirculation.Wat.Sci.Tech.,1996,33(1):183—192[4]S.A.Manesis,etal.Intelligentcontrolofwastewatertreatmentplants.ArtificialIntelligenceinEngineering,1998,12:275—281[5]J.Suescun,etal.Real-timecontrolstrategiesforpredenitrifi-cation-nitrificationactivatedsludgeplantsbiodegradationcon-trol.Wat.Sci.Tech.,2001,43(1):209—216[6]M.K.Nielsen,T.B.Onnerth.Strategiesforhandingofon-lineinformationforoptimizingnutrientremoval.Wat.Sci.Tech.,1996,33(1):183—192[7]K.Hoen,etal.Controlofnitrogenremovalinwastewatertreat-mentplantswithpredenitrificationdependingontheactualpu-rificationcapacity.Wat.Sci.Tech.,1996,33(1):223—236[8]J.A.Baeza.ImprovingthenitrogenremovalefficiencyofanA2/ObasedWWTPbyusinganon-lineknowledgebasedexpertsystem.WaterResearch,2002:36(10):2109—2123(责任编辑:郑晓梅)224