臭氧化处理含溴水时溴酸盐的生成特性

4212201012JOURNALOFH[e-mail]2．450000．10minpH8pH710μg/L．40mg/L10μg/L．TU991A0367－6234201012－1883－04StudyonformationCharacteristicsofbromateinbromidewatertreatmentbyozoneLIUdong-mei1YUming-xue12CUIfu-yi1ZHUqi1ZHAOzhi-wei11．StateKeyLaboratoryofUrbanWaterResourc[e-mail]tPlanning＆Designco．ltdZhengzhou450000ChinaAbstractTocontroltheformationofbromateinthetreatmentofdrinkingwaterwithbromidebyozonetheinfluencingfactorsonbromateformationwerestudiedindetail．Resultsofpilottestandpilotscaletestshowthatmostofbromatearegeneratedinthefirst10minutesofozonationandwhenpH＞8thebromatefor-mationisincreasedevidentlywhenpH＜7thebromateformationislimitedunder10μg/L．TheexistenceofNH3－NandNOMcouldinhibitthegenerationofbromate．WhentheconcentrationofNOMgetsto40mg/Ltheamountofbromatewillbeunder10μg/L．Keywordsozonationbromatebromideformation2009－05－25．508080522010TS08E201007．1973—1958—．1．USEPA10μg/L2．2004《》25μg/L10μg/L3．2005CJ/T206－2005《》0.01mg/L4．56．pH7、89、H2O21011、7、12．．．11.1．10～20min5L3L21．280mm3.5m2.5m20～40μm35.4m3/d1.50m3/h15min．3571015min．．0.5m．5．463280791105300200100081—进臭氧管（硅胶管）;2—出水龙头;3—有机玻璃柱（外径10cm，内径8cm）;4—出臭氧管（硅胶管）;5—穿孔布气板;6—盖板（有机玻璃板，要求密封，可开启）;7—石英砂粒（粒径约2mm）;8—进水弯头（带阀门）;9—放空管（带阀门）;10—曝气头.11234551—2—3—4—5—21℃NTUpHCODMnmg·L－1TOCmg·L－1ρmg·L－1UV254cm－1ρCaCO3mg·L－13.0～7.00.3～0.57.10～7.454.2～4.63.0～3.50.8～1.00.06856～641.2BrO3－DIONEXDX－30002μg/LTOCTOC－VCPHUV254T6751G．22.1pH3Br－=200μg/L、4mg/L、10min、pH6～9pH．pHO3O3pH．pHpH．pH6.510μg/LpH8．pH7.2pH·4881·42pH．9.08.07.06.05.0臭氧氧化前调节pH臭氧氧化后调节pH有机物含量不同时020406080100120籽（溴酸盐)/（滋g·L-1)pH403020100籽（腐殖酸）/(mg·L-1)Br－=200μg/Lt=10min3pH2.23Br－=200μg/L、4mg/L、10min、pH7.23．20mg/L．20mg/L．2.3Br－=200μg/L、4mg/L、pH7.23410min10min10min．pH7.3Br－=200μg/L、4mg/L40～15min、．6min10μg/L．161412108642020406080100籽（溴酸盐)/（滋g·L-1)小试，不同臭氧氧化时间中试，不同臭氧氧化时间中试，不同溴离子浓度小试，不同溴离子浓度6005004003002001000籽（溴离子)/（滋g·L-1)臭氧氧化时间/min42.410min、4mg/L、pH7.23418.3%．pH7.34mg/L49.8%400μg/L400μg/L400μg/L400μg/L．100μg/L10μg/L．2.5pH5Br－=200μg/L、·5881·124mg/L、10min、pH．1．00.5mg/L．pH．．5pH．30252015105NH3-N∶0.5mg/LNH3-N∶1mg/L6.56.97.37.78.18.5pH籽（溴酸盐)/（滋g·L-1)Br－=200μg/Lt=10min531Br－50～500μg/LBrO3－Br－．Br－100μg/LBrO3－10μg/LBr－．2pH5.5～9．0BrO3－pH．pH710μg/LpH8pH8.56.557.83%．310min．4．40mg/L10μg/L．5．1KUROKAWAYMAEKAWAA．CarcinogenicityofpotassiumbromateadministeredorallytoF334ratsJ．JounaloftheNationalCancerInstitute198371965－972．2BONACQUISTITP．Adrinkingwaterutility’sper-spectiveonbromidebromateandozonationJ．Toxicology2006221125－148．3．J．2006166677－678．4．CJ/T206－2005J．2005．5GUNTENvonU．OzonationofdrinkingwaterPartIIDisinfectionandby－productformationinpresenceofbromideiodideorchlorineJ．WaterResearch2003371469－1487．6．J．200829199－103．7SIDDIQUIMSAMYGLRICERG．BromateionformationAcriticalreviewJ．AWWA1995871058－70．8GUNTENvonUHOIGNJ．Bromateformationduringozonationofbromide-contaniningwatersInteractionofozoneandhydroxylradicalreactionsJ．EnvironSciTec19942871234－1235．9SIDDIQUIMSAMYGL．FactorsaffectingDBPfor-amtionduringozone－bromidereactionsJ．AWWA199385163－72．10．J．200018341－45．11WESTERHOFFPSONGRAMYGLetal．NOMsroleinbromideandbromateformationduringozonationJ．AWWA1998891182－94．12．J．20052141－4．·6881·42