2种不同模块化填料组合的多级土壤渗滤系统的比较魏才倢

21,2,1＊,1,1(1.,　100871;2.,　100012):,2.,COD,50%.-,NH+4-N,1mgL.-MSL8∶1,,84%;,40%.-TN,68%,98%.3TN.4TP30%～90%,.,-(M1、M2),80%.,.:;;;;:X703.1　:A　:0250-3301(2009)06-1860-07:2008-07-28;:2008-11-27:(863)(2005AA601010-03);(2008ZX07102-003):(1984～),,,,E-mail:[e-mail]＊,E-mail:[e-mail]Multi-soil-layeringTreatmentSystemFilledDifferentPaddingsWEICai-jie1,ZHUQing2,WUWei-zhong1,LIChao1,GAOHang1(1.CollegeofEnvironmentalSciencesandEngineering,PekingUniversity,Beijing100871,China;2.ChinaNationalEnvironmentalMonitoringCenter,Beijing100012,China)Abstract:Twotypesofmulti-soil-layering(MSL)systems,eachofthemwasfilledwithdifferentpadding,includingboththelayersofmixturelayers(ML)andpermeablelayers(PL),whichdesignedforpurifyingpollutedriverwaterandforstudyingthedifferenceofthepollutantremovalefficiencybetweenthemunderdifferentoperationconditions.TheresultsindicatedthatthefoursystemsallhadgreatCODremovalefficiencyandtheremovalrateofeachofthemwasabove50%.Zeolite-lightweightceramicpelletsystem(Z-LCPS)hashighremovalefficiencyofNH+4-N,andtheconcentrationofthefinaloutflowisbelow1mgL.Whentheairandwaterratiois8∶1,ceramisite-redclaysystem(C-RCS)hashighNH+4-Nremovalratewhichisupto84%.However,theNH+4-NremovalrateofC-RCSisbelow40%undertheun-aeratedcondition.TheZ-LCPSunderun-aeratedconditionhasthebestTNremovalefficiencythattheaverageremovalrateofTNisabove68%andreachesthe98%atbest.Underthehighpollutantloading,theTPremovalefficiencyofZ-LCPS(M1,M2)isbetterthanC-RCS,andunderthestableperiod,theTPremovalrateisabove80%.Atlast,thedifferenceofthenitrogenremovalmechanismbetweenthefoursystemsisanalyzedthroughthechangesofnitrogenconcentrationalongtheflowdirection.Keywords:multi-soil-layeringtreatment(MSL);zeolite;ceramisite;redclay;nitrogenremovalefficiency　　2070,,.、、、.MSL(multi-soil-layeringtreatment)2090,(mixtureLayers,ML)、(permeablelayers,PL),,、[1].,PLML,.MSL、、、,、[2～4].Luanmanee[3]MSLCOD、TN、TP,,TN.Boonsook[4](PL)MSL.Sato[5]、Masunaga[6]、Chen[7]MSL、MSL.30620096　　　　　　ENVIRONMENTALSCIENCEVol.30,No.6Jun.,2009DOI:10.13227/j.hjkx.2009.06.006MSL、.、2MSL,2,,MSL.1　1.1　MSL1,4,MSL1、MSL2、MSL3、MSL4(M1、M2、M3、M4),2.M1M2,M3M4;M1M31,.,12,(2).1.2m,　　1　MSLFig.1　ProfilestructureofexperimentMSLsystem1.M1、M2PL(zeolote),ML(lightweightceramicpellet);M3、M4PL(ceramisite),ML(redclay).ML0.295m×0.215m×0.075m.1　MSLTable1　CompositionsandratiosofthematerialsfilledinMSLsystemM1M2M3M4ML(50%)、(35%)、(10%)、(5%)(30%)、(30%)、(20%)、(10%)、(10%)、(10%)PL1.2　MSL100d.,,,,,,,.100d5,4.52,2、4、5,1、3,.2　Table2　OperatingconditionsandrangeofexperimentMSLsysteminfluentineachperioddHLRm3·(m2·d)-11)L·h-11)℃CODmg·L-1NH+4-Nmg·L-1TNmg·L-1TPmg·L-111～251254∶116～2414.5～25.10.9～4.02.9～5.20.3～0.4226～401254∶116～2413.5～37.75.6～10.48.1～12.30.4～0.9340～601254∶116～2423.4～88.40.1～2.91.5～6.00.3～0.4461～802508∶111～1438.7～74.75.1～18.38.2～19.00.4～1.7581～10021008∶111～1427.1～58.66.6～15.49.9～15.30.5～1.31)M1、M31.3　COD、TN、TP、NO-3-N、NH+4-N,3;、pH、(DO).COD18616:2,TN-,TP,NH+4-N,NO-3-N,、pH、DO[8].2　2.1　2.1.1　MSL、,[5].3,COD40%,80.6%.M1、M369.0%、66.4%,M2、M456.3%、54.5%,.MSLCOD,.4,-M4,DO1mgL,M4,,1DO0.69mgL-1.11mgL,.-(M3)COD.2.1.2　MSL,,,15%[9];,.2(a),,-M1、M2NH+4-N1mgL,Ⅲ(GB3838-2002),,,,NH+4-N90%(4).M1、M2.3,NH+4-N1mgL,M2,-13.2%,.,M1.-M3,2(a),,5,,45.6%84.1%,M1、M2.M4,NH+4-N　　3　CODTable3　EfficienciesofeachMSLsystemsonCODremovalduringdifferentperiods12345g·(m3·d)-121.73±4.927.69±10.7248.76±23.28112.5±25.4673±24.28g·(m3·d)-1M115.8±4.924.4±11.732.7±20.975.3±36.142.2±13.1%71.6±8.980.6±6.960.8±17.669.4±19.960.6±20.4g·(m3·d)-1M211.8±5.620.4±13.828.4±18.870±33.239±13.3%51.5±17.355.5±17.851.4±16.867.6±15.755.8±21.3g·(m3·d)-1M317.1±4.322.4±9.429.7±22.269.4±28.637.3±16.5%74.1±17.173.0±7.762.5±12.363.2±15.259.5±23.0g·(m3·d)-1M413.6±2.321.1±9.427.8±22.447.6±28.330.2±11.7%54.9±9.465.6±11.160.3±11.249.2±9.042.4±15.14　Table4　EfficienciesofeachMSLsystemsonNH+4-Nremovalduringdifferentperiods12345g·(m3·d)-11.9±1.88.5±1.61.0±0.926.7±8.922.4±7.2g·(m3·d)-1M11.6±28.5±1.60.8±1.026.2±9.121.6±7.1%53±39.999.1±1.667.4±22.897.4±3.696.2±2.6g·(m3·d)-1M21.5±2.18.4±1.60.5±1.125.7±921±7.4%62.7±32.397.2±3.6-13.2±53.895.2±4.192.7±4.1g·(m3·d)-1M31.8±1.94.8±3.30.5±0.310.6±3.818.4±4.7%87.1±19.247.4±30.354.9±21.145.6±26.884.1±10.6g·(m3·d)-1M41.3±24.5±3.6-0.3±0.35.8±2.81.3±3.4%41±4238.3±34.9-32.6±40.727.7±25.53.5±11.81862　　　　　　30,1、2、425%～40%,3、5NH+4-N,M4-32.6%3.5%,NH+4-N.5,TN,M2,TN1mgL,68%,98.6%.,,,2(b),NO-3-N44.2mgL、4.5mgL59.6mgL、12.1mgL,TN,34.3%、1.5%..2　N、PFig.2　ConcentrationsofNH+4-N,NO-3-N,TN,TPinthewastewaterandinthetreatedwaterofthefourMSLsystemsindifferentperiods5　Table5　EfficienciesofeachMSLsystemsonTNremovalduringdifferentperiods12345g·(m3·d)-13.9±0.99.6±1.73.3±1.829.0±6.724.4±5.2g·(m3·d)-1M11.8±1.16±0.70.8±0.725±5.58.7±4.2%42.0±16.067.7±3.823.5±8.786.2±8.234.3±10.5g·(m3·d)-1M23.4±0.98.6±1.12.4±228.8±724±4.6%85.8±2.696.8±1.168.9±24.398.5±3.498.6±2.5g·(m3·d)-1M32.3±1.14±1.41±0.66.8±30.3±2.3%57.5±18.840.9±17.443.6±19.527.6±14.31.6±10.4g·(m3·d)-1M42.7±1.56.5±2.41.4±0.38.4±3.12.9±2.1%67.8±29.167.8±30.550.5±20.932.6±20.913.2±10.618636:2