含铊酸性废水强化氧化混凝处理研究(英文)

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1、20131323beakersf500m1)wheresomeoxidantswereaddedwithat10，12，15，20，23withCa(ClO)2andbycoagulationme-wereadded．withtemperatureat20℃and25mIKMnO4(0．05kg／L)，respec—thod．When37mICa(CIO)2isadded，andDHat2．7．Afteroxidizationfor20tively．After0xidization．30mlcalciumthetreatmentefectisthebest．w

2、ithmin，coagulantswereaddedtokeepoxidesolution'(0．092kg／L)wasaddedlowercost．pHin8-9．Thecoagulationsedimenta—andplacedtherefor30mintocollectEfectsofcoagulanttiontestwasthenconductedwithasupernatanlandmeasurethalliumPotassiumpermanganateCalciumsix·shaftmixer．Specifically。thesolu-conten

3、t．AsshowninFig．1．within．oxidesolution(0．092kg／L)wasaddedtionwasstirredat140r／mjnfor2min．creaseofKMnO，thalliumcontentjnsixbeakerswithacidicwastewaterfollowedby70r／mInfor15min．Subse．wasdecreasingand,removaleficien—at12，15，20，25，and35ml，wherequently，thesolutionwasplacedtherecywasgrowin

4、gcOrrespOndIngIy．KMn04wasaddedat20ml；thesolu．for30minandsupernatantwascol··WhenKMnO4wasaddedal25m1．thetionwasthenplacedtherefor30minlectedtomeasurethalliumcontentandeficiencyofthalliumremovaIachievedtocollectsupernatantandmeasurewatchsupernatantchromaticity．ashighas99．98％．ithasbeend

5、emon—thalliumcontent．AsshowninFig．4．TestmethodstratedthatthalliumwastewaterbeingwhenCaOwasaddedat25ml，theIntheresearch．thalliumwastreatedbystrengthenedoxidationco·contentofthalliumwastheleastatmonitoredwithICP—MS．agulationwithKMnOsolutionisef．1．002iJg／LandtheremovaIeficiencyTestcond

6、itionsThalliumwasfective．WhenKMnO4isaddedto20achievedthemaximumat99．93％．measuredwithICP．MSfPEElan．ml，besttreatmentefecthasbeenWhenCaOwasaddedat35ml，how．6000)。whichjnstrumentparametersachivedwithIowercost．ever，theremovaIeficiencyfell，repre．wereoptimizedattheverybeginning．Efectsofhydr

7、ogenperoxideHy-Specifically，basedonstandardsolu—drogenperoxidesolution(30％1wastion．alfinstrumentparameterswereaddedintosixbeakerswithacidicadjusted，includingatomizerflowrate，wastewaterat1．4，1．6，1．8，2．0，2．2powerofradiofrequencyandauxiliaryand2．4ml，respectively．Afteroxidiza-hydrogenfl

8、owrate，withrecords．