不同基质垂直流人工湿地对猪场污水季节性处理效果的研究丁晔

26720067ActaScientiaeCircumstantiaeVo.l26,No.7Ju.l,2006:(No.021103723)SupportedbytheH-itechResearchProgramofZhejiangProvince(No.021103723):(1980)),,;*(),E-mai:[e-mail]:DINGYe(1980)),male;*Correspondingauthor,E-mai:[e-mail],,,.2006.[J].,26(7):1093-1100DingY,HanZY,WuJY,etal.2006.Seasonalperformancesofthreevertica-lflowconstructedwetlandsfilledwithdifferentpackingmaterialsforpiggerywastewatertreatment[J].ActaScientiaeCircumstantiae,26(7):1093-1100丁晔,韩志英,吴坚阳,陈英旭,吴伟祥*浙江大学环境工程系,杭州310029:2005-09-20:2006-05-28:2006-06-02:3.,,;NH+4-N52%,-NH+4-N89.8%93.4%64.2%73.5%,80%.TN;3,-,-,TN.TN.TP,,TP,.:;;;;:0253-2468(2006)07-1093-08:X703,X713:ASeasonalperformancesofthreevertica-lflowconstructedwetlandsfilledwithdifferentpackingmaterialsforpiggerywastewatertreatmentDINGYe,HANZhiying,WUJianyang,CHENYingxu,WUWeixiang*DepartmentofEnvironmentalEngineering,ZheijiangUniversity,Hangzhou310029Received20September2005;receivedinrevisedform28May2006;accepted2June2006Abstract:Seasonalperformancesofthreevertica-lflowconstructedwetlands(VFCWs)filledwithdifferentpackingmaterialsforpiggerywastewatertreatmentwasinvestigated.ResultsshowedthattherewerenosomesignificantseasonaldifferencesintheCODCrremovalefficiencyamongthreetypesofVFCWs.BiodegradationoforganicmatterinallthreeVFCWswerefoundfollowingthefirstorderratemode.lTheNH+4-NremovalefficienciesinconventionalVFCWsindifferentseasonsconstantlymaintainedat52%.However,NH+4-NremovalefficiencieswerefoundfluctuatingoverseasonsinVFCWsfilledwitheitherzeoliteorzeolite-cinder,.ie.,89.8%and93.4%inautumn,64.2%and73.5%inwinter,andaround80%inspringandsummer,respectively.Totalnitrogen(TN)removalefficienciesofallVFCWsinwinterwereconsiderablylowerthanthoseintheotherseasonsduetorelativelyweakerprocessesofnitrification-denitrification.ThenitrificationactivityinVFCWsfilledwithzeolite-cinderwasthehighestamongallofVFCWs,whilethedenitrificationactivityinVFCWsfilledwithzeoliteorzeolite-cinderwasmoreintensivethanthatintheconventionalVFCWs,agreeingwiththeTNremovalefficienciesinthreeVFCWs.Aspackingmateria,lzeoliteisabletoacceleratetheprocessofdenitrificationaswellasTNremovalefficienciesofVFCWs.Nevertheless,therewasnoapparentdifferenceoverseasonsintotalphosphorus(TP)removalefficiency.Withsaturationofphosphorusadsorptioninpackingmateria,lTPremovalefficiencywasdeclinedobviouslyinallVFCWs.Keywords:vertica-lflowconstructedwetlands(VFCWs);packingmateria;lpiggerywastewater;seasona;ltreatmentefficiency(Introduction)()..26,(Hilletal.,1997;Rober,t2000).(,1993;,2002a),,.,(vertica-lflowconstructedwetlands,VFCWs),,.1(Experimentalsection)1.1基质及装置设计(),4~8mm.:(1)0.5m@0.5m@0.7m,.,3,-.3,(20g#m-2).1.1Fig.1Flowdiagramoflab-scalevertica-lflowconstructedwetlandsystem1.2垂直流人工湿地季节性运行试验,,.,6h,PLC.CODCr1200~1400mg#L-1,NH+4-N540~720mg#L-1,TN600~800mg#L-1,TP28~30mg#L-1.1Table1Matrixmaterialsandthefillingmodel-10cm0~2mm0~2mm0~2mm30cm4~8mm4~8mm+(1B1)4~8mm+(1B1)20cm16~32mm16~32mm16~32mm:4,10()5()4()2(),()1B1.,20056.12.:3,.7.5cm#d-1,6#d-1,1h,PLC,64h,36~48h,4d.:(),()2..2Table2Airandwatertemperatureindifferentoperationstages/e/e2004-05-20~2004-06-2624~3017~242004-06-29~2004-08-0226~3721~312004-08-05~2004-09-1225~3621~282004-09-15~2004-11-0316~3115~252004-11-06~2005-01-06-4~212~142005-02-20~2005-04-1515~228~162005-05-10~2005-06-1523~3116~2510947:1.3基质硝化和反硝化强度分析1.3.1基质硝化强度测定310cm20cm30cm40cm,100g250mL,100mL,,25e24h(,2003)..0.2mol#L-1KH2PO40.2mol#L-1K2HPO40.050mol#L-1(NH4)2SO41B2.33B10,NaOH(0.1mol#L-1)pH7.2.(1):X1=(C2-C1)@(V1+V2)/(t@m@k)(1),X1,mg#g-1#h-1;C1,mg#L-1;C224h,mg#L-1;t,h;V1,0.100L;V2,L;m,g;k().1.3.2基质反硝化强度测定,310cm20cm30cm40cm,100g250mL,100mL,,,25e24h,(,2003).150mg#L-1NO-3-N+450mg#L-1.(2):X2=(C1-C2)@(V1+V2)/(t@m@k)(2),X2,mg#g-1#h-1,(1).1.4测试方法及数据分析,8~10(4d,4d1),..CODCrNH+4-NNO-3-NTNTP,(,2002).Excel,SPSS13.0.2(Results)2.1CODCr的去除效果2.,,CODCr660~800mg#L-1,1500mg#L-1,.,2,.,-,,68.4%~7310%;,64.9%~68.6%,60.4%~63.2%.,10e,,-61.8%,256%,10%.)).2CODCrFig.2VariationofCODCrremovalefficiencyinVFCWsoverseasons(Mitchelletal.,2001;,2002;Mitchelletal.,1998).:Cout=Cinexp(-k1,v#S)(3)r1=QCin(1-exp(k1,v#S))(4),CoutCODCr(mg#L-1);CinCODCr(mg#L-1);k1,M(d-1);S(d);r1(mg#d-1);Q(L#d-1)(3):lnCout=lnCin-k1,v#S(5)(5)33.1095263Table3FirstordersimulationequationsoforganicmatterremovalinVFCWsk1,MR2pnCout=Cinexp(-0.4421S)0.44210.80311.81814@10-1232Cout=Cinexp(-0.3830S)0.38300.84703.54567@10-1432-Cout=Cinexp(-0.5011S)0.50110.73012.51886@10-1032:p0.01;3Fig.3SimulationmodelsoforganicmatterremovalinVFCWs2.2NH+4-N的去除效果,NH+4-N330~440mg#L-1,NH+4-N.NH+4-N(4),NH+4-N(54.8%,53.7%,47.6%,5411%),-,89.8%9314%64.2%73.5%;,78%,82.7%87.4%.,-NH+4-N.4NH+4-NFig.4ChangesofNH+4-NremovalefficiencyinthreeVFCWsoverseasons5TNFig.5VariationofTNremovalefficiencyinthreeVFCWsoverseasons2.3TN的去除效果5,TN.3TN.NH+4-N,,-TN,75.2%61.7%44.0%37.5%.22.7%10967:1418%.TN,TN20.7%~24.2%,-59.9%~64.7%56.9%~63.3%.1a,20056103,4.4,3,-,,.,,-.4VFCWsTable4NitrificationanddenitrificationactivitiesindifferentlayersofVFCWsX1/(10-3mg#g-1#h-1)-X2/(10-3mg#g-1#h-1)-10cm3.38(0.20)1.64(0.08)4.08(0.18)0.15(0.03)2.92(0