二溴海因对水体中微囊藻毒素去除效果的研究

20131301JEnvironHealth,January2013,Vol．30,No．1··0.46mg/m35mg/m3。。2。3DB-6243d。、。1．13－J．1996234223－226．2．N－J．200825121086－1087．3．J．2008259817－819．2012－08－14HD2008651954-。[e-mail]。0.050～0.30mg/L、0～120min、20～35℃、pH6.5～9.50.30mg/LMC-LR、MC-RR。[0.30mg/L25℃、pH7.060min]MC-LR、MC-RR93.6%96.7%。MC-LRMC-RR。R123.6A1001-5914（2013）01-0066-03Removalofmicrocystininwaterby1，3-dibromo-5，5-dimethylhydantoinNIUWei-min*，HEEn-qi，DINGXin-liang，YURui-peng，TAOGuan-jun，YANZhen-kun.*DepartmentofInspection，WuxiCenterforDiseasePreventionandControl，Wuxi，Jiangsu214023，ChinaCorrespondingauthor：YURui-peng，E-mail：[e-mail]dytheremovalofmicrocystin（MC）by1，3-dibromo-5，5-dimethylhydantoin（DBDMH）.MethodsTheremovalofMCinwaterwiththeconcentrationof0.30mg/Lwasexploredunderdifferentconditions,includingmassconcentrationofDBDMH（0.050-0.30mg/L）,reactiontime（0-120min）andtemperature（20-35℃）.ResultsDBDMHwasaddedintothewatersampleundertheoptimizedconditions[equalvolumeofDBDMHwithconcentrationof0.30mg/L（25℃,pH7.0）for60min],theremovalratestoMC-LRandMC-RRinwaterwere93.6%and96.7%,respectively.ConclusionDBDMHcaneffectivelyremoveMC-LRandMC-RRinwater，andthechemicaloxidationtechnologycanbeappliedintheremovalofMCindrinkingwatertreatmentinwaterplant.Keywords：1，3-dibromo-5，5-dimethylhydantoin；Microcystin；RemovalmicrocystinsMC。70MC-LR、MC-RR[1]。[2]。[3]、2··6620131301JEnvironHealth,January2013,Vol．30,No．1··MC-LRMC-RR0.30mg/L。℃202530352MC-LR、MC-RRn=3mg/L0.01560.00960.01060.0202％89.693.692.986.5mg/L0.00900.00490.00570.0127％94.096.796.291.5MC-LRMC-RR、、[4]。。DBDMH13--55-13-dibromo-55-dimethylhydantoin。、[5-6]。55’-、、“、、”、、、、。MC-LR、MC-RR。11.1仪器与试剂--ultraperformanceliquidchromatography-quadrupole-timeofflightmassspectrometry,UPLC-Q-TOF-MSWatersMilli-QMillipore。、MC-RR、MC-LR95.0%Alexis。。1.2测定方法-MC-LR、MC-RR[7]。(3)0.0010mg/L85.2%～97.9%RSD0.20%～5.6%。1.3实验条件的优化MC-LR、MC-RR12.3、17.7μg/L[8-9]。MC-LR、MC-RR0.30mg/L。1.3.125℃、pH7.00.30mg/LMC-LR、MC-RR0.050、0.075、0.10、0.15、0.30mg/L60min1mol/LMC-LR、MC-RR[=/2-//2×100%]。1.3.225℃、pH7.00.30mg/LMC-LR、MC-RR0.30mg/L0、2、5、10、15、30、60、90、120min1mol/LMC-LR、MC-RR。1.3.320、25、30、35℃0.30mg/LMC-LR、MC-RRpH7.00.30mg/L60min1mol/LMC-LR、MC-RR。1.3.4pH25℃0.30mg/LMC-LR、MC-RRpH6.5、7.5、8.5、9.50.30mg/L60min1mol/LMC-LR、MC-RR。1.4水样的测定25℃、pH7.00.30mg/L60min1mol/LMC-LR、MC-RR。22.1二溴海因投加量对去除效果的影响MC-LRMC-RR。0.30mg/L93.6%96.7%。1。0.30mg/L。2.2温度对去除效果的影响MC-LRMC-RR25℃MC-LRMC-RR93.6%96.7%。2。25℃。MC-LRMC-RR0.30mg/L。mg/L0.0500.0750.100.150.301MC-LRMC-RRn=3mg/L0.12600.09750.06900.03170.0096％16.035.054.078.993.6mg/L0.12500.09510.06520.02820.0049％16.736.656.581.296.7MC-LRMC-RR6720131301JEnvironHealth,January2013,Vol．30,No．1··MC-LRMC-RR0.30mg/L。min02510153060901203MC-LR、MC-RRn=3mg/L0.15000.12800.11000.08550.06490.03170.00960.01050.0075％0.014.726.743.056.778.993.693.095.0mg/L0.15000.12300.10200.07950.05730.02820.00490.00450.0038％0.018.032.047.061.881.296.797.097.5MC-LRMC-RRMC-LRMC-RR0.30mg/L。pH6.57.58.59.54pHMC-LR、MC-RRn=3mg/L0.01320.00960.01000.0143％91.293.693.390.5mg/L0.00550.00490.00850.0115％96.396.794.392.3MC-LRMC-RR2.3反应时间对去除效果的影响MC-LRMC-RR。、。。2.4pH值对去除效果的影响pHMC-LRMC-RR。pHMC-LR、MC-RR。4。2.5二溴海因对水样中MC-LR、MC-RR的去除效果MC-LR、MC-RR0.10、0.20、0.300.30mg/LMC-LR、MC-RRMC-LR、MC-RR5。MC-LR、MC-RR0.10mg/L100.0%MC-LR、MC-RR。MC-LR、MC-RR0.30mg/L。MC-LR、MC-RR。。3、MC-LR、MC-RR。1MC-LR、MC-RR。2MC-LR、MC-RR。3、pHMC-LR、MC-RR。4。[0.30mg/L25℃、pH7.060min]MC-LR、MC-RR。1HunterPR．CyanobacterialtoxinsandhumanhealthJ．JApplMicrobiolSympSuppl19988435－40．2RossoDStenstromMK．ComparativeeconomicanalysisoftheimpactsofmeancellretentiontimeanddenitrificationonaerationsystemsJ．WaterRes2005393773－3780．3．J．200319836－39．4VirenderKSTheodorosMTMariaGAetal．DestructionofmicrocystinsbyconventionalandadvancedoxidationprocessesareviewJ．SeparaandPurificaTechnol2012913－17．5．J．2009316736－737．6．J．2003111413－14．7．－－J．201231180－83．8．J．200627101969－1973．9SongLRChenWPengLetal．DistributionandbioaccumulationofmicrocystinsinwatercolumnsasystematicinvestigationintotheenvironmentalfateandtherisksassociatedwithmicrocystinsinMeiliangBayLakeTaihuJ．WaterRes2007412853－2864．2012－05－315MC-LR、MC-RRn=3mg/L0.100.200.300.30％100.091.680.892.5MC-LRMC-RRmg/L00.0080.0290.011mg/L0.100.200.300.30％100.093.093.294.3mg/L00.0070.0100.00968