改性沉积物除藻对水质改善的效果研究

27120071ActaScientiaeCircumstantiaeVo.l27,No.1Jan.,2007:/0(No.2002AA60101);(No.2002CB412308)SupportedbytheNationalKeyTechnologiesR&DProgramme(No.2002AA60101)andNationalKeyProjectforBasicResearch(No.2002CB412308):(1979)),,;*(),E-mail:[e-mail]:ZHAGNMulan(1979)),female,Ph.D.candidate;*Correspondingauthor,E-mail:[e-mail],,,.2007.[J].,27(1):13-17ZhangML,PanG,ChenH,etal.2007.Studyoftheeffectonwaterqualityimprovementbyremovalofalgalbloomsusingmodifiedsediment[J].ActaScientiaeCircumstantiae,27(1):13-17张木兰,潘纲*,陈灏,田秉晖,高爽,袁宪正中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085:2006-07-11:2006-11-21:(1m@1m@1m),.,DOTNTPDINDIP.43mg#L-1,4h85%.2d,90%,70%80%,15d.2DO,DO.,DIN,DIP,DINDIP.,.,.:;;;DO;;;:0253-2468(2007)01-0013-05:X171.4:AStudyoftheeffectonwaterqualityimprovementbyremovalofalgalbloomsusingmodifiedsedimentZHANGMulan,PANGang*,CHENHao,TIANBinghu,iGAOShuang,YUANXianzhengStateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco-environmentalSciences,ChineseAcademyofSciences,Beijing100085Received11July2006;accepted21November2006Abstract:Theeffectsofflocculationandremovalofalgalbloomsusingmodifiedsedimentsanditsconsequentwaterqualityimprovementaftertheremovalwereinvestigatedthroughecologicalsimulationexperimentsin1m3boxessimulatingnaturallakeenvironment.Waterqualityparameters,suchasCh-la,turbidity,DO,TN,TP,DINandDIP,weremeasuredandanalyzedaftertheremova.lMorethan85%ofalgalcellswereremovedin4hourswhen43mg#L-1modifiedsedimentswereadded.Theturbidity,Ch-la,TNandTPweredecreasedby90%,90%,70%and80%respectivelyafter2daysofremova.lTheaboveparametersremainedrelativelystablewithinthe15daysofobservation.DOinbothexperimentalboxesdeclined,butDOinthetreatedboxwasobviouslyhigherthanthatofthecontro.lMoreover,DIPinthetreatedboxremainedatarelativelylowlevelwhileDINreduced,howeverDINandDIPintheuntreatedboxincreasedsubstantially,indicatingthattheremovalofalgalbloomsusingmodifiedsedimentcouldeffectivelyalleviateanaerobicconditionandrestrainthereleaseofnutrientsinshortterm.Theaboveresultssuggestedthatthewaterqualitycouldbeimprovedobviouslyaftertheremovalofalgalbloomsusingmodifiedsediment,whichcouldbeappliedintheprotectionofwatersource.Keywords:algalbloom;modifiedsediment;turbidity;DO;nitrogen;phosphorus;waterqualityimprovement1(Introduction),,,,.,.,.,27(Anderson,1997).(Panetal.,2006a)(Zouetal.,2006);/,(Panetal.,2006b),,,,.,,,.,,,,.2(Materialsandmethods)2.1实验材料:21m@1m@1m,.10cm(),25e14h,.,212h,(1),1,1.;;.1Table1Waterqualityinexperimentboxes/e/(LS#cm-1)DO/(mg#L-1)pHORP/mV/(mg#L-1)TN/(mg#L-1)TP/(mg#L-1)25.383247.178.412121.736.510.2825.023227.228.442151.516.510.282.2实验方法:100mg,10mLHCl(1%),100mL,1mg#mL-1.:,180,74Lm,100e.:,,.:,,.,10min20min,.10cm,a,.3d1.2.3分析方法a(ch-la):0.45Lm10mL(90%)4e24h,,Ch-la;(NTU):;:;DIP:0145Lm,;:4%,;NH+4-N:;NO-2-N:N)(1-));NO-3-N:;pHORP:YSI556.3(Results)1Fig.1Thekineticcurveofalgaeremoval3.1改性沉积物除藻效果分析43mg#L-1(3mg#L-1,40mg#L-1).015h70%,4h85%(1).1,141:,.3.2除藻后水体中叶绿素浊度和DO的变化情况,2.,,,.2Fig.2Ch-lavariationinexperimentalboxes3,,,,.,,,,,.3Fig.3Turbidityvariationinexperimentalboxes4-,,;2,2-,-7mg#L-11mg#L-1,-3~4mg#L-1,.,,,,.4Fig.4DOvariationinexperimentalboxes3.3除藻后水体中营养盐指标的变化情况5.,,.,TNTP.5Fig.5TPandTNvariationinexperimentalboxes(DIN)(DIP)(,1997;,2001;,2001).DINDIP.6a,1527DIN,,DIN,.(DIP)2,DIP,DIP,.6DINDIPFig.6DINandDIPvariationinexperimentalboxes4(Discussion)4.1改性沉积物除藻对水质改善的短期效果分析1,,.(3),,,(4);,,.,,TNTP6.50.28mg#L-12.00.06mg#L-1(5),.6,DINDIP,(1),DINDIP.,,,,,,,,DINDIP,DINDIP,.,.,,,,,,.,,PACPAM,,,(Hoehnetal.,1980).,,,,,.,..4.2改性沉积物除藻对水质改善的长期效果,,(,2005),,,.,;,,,.,,.5(Conclusions)1),161:,,,,.2),,.3),.:感谢国家十五重大科技专项(No.2002AA60101)和国家重点基础研究项目(No.2002CB412308)的资助.:潘纲,男,博士,研究员.主要研究方向是环境水化学与分子环境科学.References:AndersonDM.1997.Turningbacktheharmfulredtide[J].Nature,388:513)514HoehnRC,BarnesDB,ThompsonBC,etal.1980.Algaeassourcesoftrihalomethaneprecursors[J].AWWA,72:344)350PanG,ZhangMM,etal.2003.KineticsandMechanismofRemovingMicrocystisaeruginosaUsingClayFlocculation[J].EnvironmentalScience,24(5):1)10(inChinese)PanG,ZhangMM,ChenH,etal.2006a.RemovalofHarmfulcyanobacterialbloomsinTaihuLakeusinglocalsoilsI.EquilibriumandkineticscreeningontheflocculationofMicrocystisaeruginosausingcommerciallyavailableclaysandminerals[J].EnvironmentalPollution,141(2):195)200PanG,ZouH,ChenH,etal.2006b.RemovalofharmfulcyanobacterialbloomsinTaihuLakeusinglocalsoilsIII.Factorsaffectingtheremovalefficiencyandaninsitufieldexperimentusingchitosan-modifiedlocalsoils[J].EnvironmentalPollution,141(2):206)212TheCompilingCommitteeofStateEnvironmentalProtectionAdminstrationofChina.1998.MonitoringandAnalyzingMethodofWaterandWastewater(3rdedition)[M].Beijing:ChinaEnvironmentalSciencePress,98)99(inChinese)WangZS,LiuWJ.1999.DrinkingWaterTreatmentofMicropollutedWaterSources[M].Beijing:ChinaArchitecture&BuildingPress,175)177(inChinese)WuCH,WangXR,SunH.1997.Establishmentofmodelsbetweenthegrowthofselenastrumcapricornutumandseveralphosphorusfractionsinthelakewater[J].EnvironmentalChemistry,16(4):341)347(inChinese)XuM,ChengK,MengB,etal.2001.Studyonseveralenvironme