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《低濃度重金屬體系的edi處理過程-研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫。
1、萬方數(shù)據(jù)AbsrtactInrecentyears，thedischargeofwastewatercontainingheavymetalsgreatharmtotheenvironment，thedevelopmentofstableandefficientenrichmentofheavymetalionsisimportant，themonitoringtechnologyofheavymetalpollutionpreventionandcontrolisofgreatsignificance．However，duetothemixedheavymetalionshave
2、thesimilarcharacteristicproperties，theprocessofseparationandenrichmenthavealotofproblemsandtheseparationefficiencyisnothigh．Onlyalittleresearchontheenrichmentoftracemetalionwitllcontinuouselectricity．1eadingtotheperformanceofEDIcomponentcontainingalotofdeficiencies，includingtheseparationeffici
3、ency，energyconsumption，stability，whichrestrictedthedevelopmentoftheEDItechnologyinthetraceheavymetalconcentration．Inthispaper,theEDIoperatedindifferentconditions，inordertoclarifythevalidityofEDItoenrichthemixedheavymetalions，whichhass仃ongapplicationsignificance．Thisarticleuses也eself-madeEDImem
4、branereactor．desalinationindoorfillacertainmixingproportionofanionicandcationicionexchangeresin．Bychangingtheoperatingconditions，suchasthecurrent，feedflowrate，concentratedsolutionflowrateandelectrodewaterflowratetostudytheprocessofenrichmentwhichhassingleormixedheavymetalionsintherawwaterandex
5、ploretheeffectofvariousfactorsonthedegreeofseparationandenrichment．ComparethedifferencesseparationenrichmenteffectbetweenthemixedheavymetalionswhichWasadded．EDTAornot．Byanalyzingtheequilibriumconcentrationofheavymetalions，exploretheheavymetalionsmigrationinthedesalinationcompartment．Theresearc
6、hresultsshowthatwiththeuseofEDIenrichmentoflOWconcentrationofthesinglecopperionsinwastewater．undertheconditionofthefeedconcentrationof0．1mg／L，theconcentrationofCu2+inconcentratedsolutionreachmorethan8megL，theconcentrationeffectisremarkableandthestabilityisgood．Undertheexperimentconditiontherei
7、sabufferregioninthestack，whichhasabalanceinthisarea，theinfluenceofoperatingconditionschangetotheenrichmentratioissmall，inwhichtheoperationhasgoodstabilityandhighreproducibility．Andsinglecopperionsconcentrationisobtainedbyexperimentalstu
