乳状液膜系统稳定性的显微分析及对含cr（ⅵ）离子工业废水分离效率的研究

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1、北京化工大学硕士学位论文乳状液膜系统稳定性的显微分析及对含Cr（Ⅵ）离子工业废水分离效率的研究姓名：赵旻申请学位级别：硕士专业：化学工程指导教师：文利雄20060515北京化工大学硕士研究生学位论文关键词：乳状液膜，稳定性，废水处理，六价铬，微波，破乳北京化工人学硕士研究生学位论文MICROSCOPICSTUDYONSTABILITYOFEMULSIoNLIQUIDMEMBRANEANDEXTRACTIoNEFFICIENCYoFCr(Ⅵ)FRoMWASTV峭LTERABSTRACTUsingac印illaryVideomicroscopytec

2、hnique，theStabilityof7rBP—Span80-keroseneemulsionliquidmembralle(ELM)SystemwasinvestigatedbypreparingasingleW1／o，W2doubleemulsion910bule．Theef6ciencyofELMforremoVingCr(Ⅵ)wasalsostudied．CombiningtllesetwoeXpe血nents，theeffectsofpH，Span80，TI强aJldNaolHonbotllⅡlestabilitya11dCr(Ⅵ)

3、ex衄ctionefficiency、№reanalyzed．Itwas—foundmat＼廿1eoil-s01ublesurfactamwast11ekeyf如torfortheELMstabil耐andt11esystemstabili哆Ⅵ忸Se11llancedwithincfeasingsurfactantconcen舰tion．InordertoremoVeCr(Ⅵ)ef绝ctivelywitllELM，thesurfkt觚tconcentrationmustbeabovetlleminimumconce嘶ationrequiredfo

4、rtllestabil耐ofELM．AcidityreducesmestabilitybutitisrequiredfortheremoVingprocess，anditisf打orabletotlleoil-watersepamtionaRer也ereaction．TBPhaSnoremarlcableimpactontllestability，however，NaOHinmeintemalwatcrphasehasgreatef．fectonbo也stabili哆a11dCr(Ⅵ)extraction北京化工大学硕士研究生学位论文e伍cien

5、cy．Thereareoptimalvaluesforallmesefactorstoachievet11ebestCr(Ⅵ)remoVingperfomlance，aIldtheextractionefficiencyofCr(Ⅵ)canexceed99．3％aRerasingletreatlnentstepThedemulsificationofmeex缸actedW／OemulsionwasalsoinVes69atedbyamicrowavemdiationmettIod，basedonⅡ1emicrowavecharacteristic

6、s，suchasnuctuation，high丘-equency舭dperletration，etcThee)【perimentalresultsshowedtllatt王1emicrowavedemuls洒cationwasanefficientdemulsificationpmcessa11dand也esep删ionspeedwasdetemlinedbymemicrowaveintensit)，，也eradiatingtime，thesettlingtemper栅eandtime，indicatingt11atmemicrowaveradi

7、ationisapmmisingtechniqueforderrmlsification．KEYWoImS：emulsion1iquidglembrane，Stabilit)，，wasteWatertreatInent，Cr(Ⅵ)removal，demulsification，．microwave北京化工大学硕士研究生学位论文Cr(Ⅵ)SpaIl80TBPDPCIW1}o涮20、pWi02CoCl符号说明六价铬离子失水山梨醇单油酸酯(sorbit姐monooleate)磷酸三丁酯二苯基碳酰二肼水／油／水型双重乳液油／水，油型双重乳液废水中cr(Ⅵ

8、)的质量浓度，m叽分离tmin后废水Cr(Ⅵ)的质量浓度，mg，L北京化f丰篁赢军赢群掣亳庸蒋等稃羹蓄霾；i委；薹囊。蚕蚕萋鐾霉嚣囊篓耋