CEPT曝气生物滤池低温下处理模拟灰水的应用研究陈广银

3　6环境工程学报Vol.3,No.620096ChineseJournalofEnvironmentalEngineeringJun.2009CEPT-陈广银　陈洪斌＊　何群彪　张小龙(,200092)　　(2～10℃),-(CEPT/BAF)。、BAF、COD、(LAS)NH3-N。:(PAC40mg/L),BAF40%～55%;COD、LAS1.2m,70%,;COD、,LAS23mg/L9mg/L,BAFNH3-N41%72%,LAS。/,NH3-N、CODLAS10、404mg/L。　　　　　X703　　　A　　　1673-9108(2009)06-1007-04StudyonCEPT-biologicalaeratedfiltertreatinggreywateratlowtemperaturesChenGuangyin　ChenHongbin　HeQunbiao　ZhangXiaolong(NationalEngineeringResearchCenterforUrbanPollutionControl,TongjiUniversity,Shanghai200092,China)Abstract　Thetreatmentofartificialgreywateratlowtemperaturesfrom10to2℃withtheprocessesofco-agulantpretreatmentandbiologicalaeratedfilterwerestudied.Therelationbetweeneffluentconcentrationandtheheightoffilter,theeffectofhydraulicloadingsonCOD,andinfluenceofLASonNH3-Nwerediscussed.TheresultsshowedthatCODandLASwereremovedmorethan70%inthefirstsectionof1.2meters,whichcanberegressedbyexponentialequation.NH3-NremovalefficiencywasinfluencedbyLAS.TheremovalefficiencyofNH3-Nwasincreasedfrom41%to72%whentheconcentrationofLASdroppedfrom23mg/Lto9mg/L,whichindicatedthatLAShadanegativeeffectonthenitrobacteria'sgrowth.TheconcentrationsofNH3-N,CODandLASineffluentfromCEPT-BAFdroppedto10,40and4mg/Lorbelow,respectively.Keywords　linearalkylbenzenesulfonate;biologicalaeratedfilter;artificialgreywater;coagulantpretreat-ment:(2006DFA92690);(2007DFB90280):2008-10-06;:2008-11-16:(1982～),,,:。E-mail:[e-mail]＊,E-mail:[e-mail]　　80%,1200t。30151100m3/,7500m3/[1]。、、,。,,,75%[2]。,,,。、。,326℃15℃,50%,5～10℃20～30℃,2℃,6℃50%[3,4]。BAF。-,-[5,6]。1　1.1　。,。1。1　Table1　Rawwaterqualityandwaterqualityaftercoagulation(mg/L)CODLASNH3-N153～19818.7～21.317.4～23.294～728.4～10.516.5～24.2　　:PAC40mg/L:2～10℃;pH6.7～7.9;5.3∶1;DO3～6mg/L;,1.5m3/h。1.2　。1.98m3,5.6m3。PAC((Al2O3)29%,80%),,()。:0.196m2;2.7m;。1.3　COD,NH3-N:,pH,(DO),SS,LAS[7]。2　2.1　COD、LASNH3-N、、,。1～3COD、LASNH3-N。1,1.2m,COD。,COD70%,,、、,。,COD。COD,,,。,10086:CEPT-[8],dh,dv,。,。:Qdc=(dc/dt)×dv(1):r=dc/dt=-kc(2)　　(1),(2):dc/dh=kca/Qdc/c=kadh/Q:c=c0exp(-kh):Q—,m3/h;c—,mg/L;c0—,mg/L;dc—,mg/L;dt—dv,h;r—,mg/(L·s);h—,m;a—,m2;k—,s-1。:c=c0e-0.6363h,0.94。,COD,,。2,0～1.2m,LAS9.55mg/L2.8mg/L,71%;1.2～2.8m,LAS2mg/L,25%,COD。LAS。c=c0e-1.09h,0.97,COD,LAS、、。COD,LASCOD,LAS,。NH3-NCOD、LAS。1.2m,NH3-N。1.2m,,。,,,,NH3-N。1.2～2.8m,NH3-N22mg/L9mg/L,60%。2.2　CODBAFCOD77.3～128.9mg/L,4。4　CODFig.4　EffectofhydraulicloadingonCODremoval45.1m/h3.8m/h,COD34.3mg/L25.7mg/L,4.8%。2.6m/h,COD23mg/L,12.6%。,COD。,,[9]。,5℃,COD80%,COD,Choi[10]。2.3　LASLAS3.8m/h,LASLAS5。5　LASLASFig.5　EffectofdifferentconcentrationsofLASonLASremoval5,LAS,,3.4mg/L0.9mg/L。LAS,85%89%。,LAS1009397%～99%[11,12]。,,10℃,,。2.4　LASNH3-N3.8m/hLAS6。6　LASNH3-NFig6　NH3-NremovalwiththedifferentconcentrationsofLAS6,LAS23mg/L,NH3-N13.5mg/L,41%。LAS18mg/L,NH3-N4mg/L;LAS9mg/L,NH3-N5mg/L,72%。,LASNH3-N,LAS。3　　(1)CODLAS,:c=c0e-0.6363h,c=c0e-1.09h。(2)(2～10℃),LAS、LAS。LAS23mg/L9mg/L,LAS0.8～3.6mg/L,85.3%～89.8%。10℃,LAS10mg/L,LAS1mg/L,,LAS20mg/L。(3)LASNH3-N。LAS23mg/L9mg/L,NH3-N30%。LASNH3-N。[1]HeP.J.PhanL.,GuG.W.,etal.Reclaimedmunicipalwastewater—ApotentialwaterresourceinChina.WaterSci.Technol.,2001,43(10):51～58[2]EvaEriksson,KarinaAuffarth,MogensHenze,etal.Char-acteristicsofgreywastewater.UrbanWater,2002,4:85～104[3],..,2004,20(7):1～5[4],,..,2004,24(2):233～236[5],,,.CEPT/.,2007,23(1):11～16[6].[].:,2007[7].(4).:,2002[8]..:,1997[9],,..,2003,19(5):48～50[10]ChoiE.,RhuD.,ZuwhanY.Temperatureeffectsonbi-ologicalnutrientremovalsystemwithweakmunicipalwastewater.WaterSci.Technol.,1998,37(9):219～226[11]BrunnerP.H.,CapriS.,MarcominiA.,etal.Occur-renceandbehavioroflinearalkylben-zenesulfonatesinsewageandsewage-sludgetreatment.WaterRes.,1988,22:1465～1472[12]PratsD.,LopezC.,VallejoD.,etal.Effectoftempera-tureonthebiodegradationoflinearalkylbenzenesulfonateandalcoholethoxylate.J.SurfactDet.,2006,9(1):69～751010