減壓膜蒸餾法分離含鉻水溶液的研究.pdf_第1頁
已閱讀1頁，還剩46頁未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

1、重慶大學(xué)碩士學(xué)位論文減壓膜蒸餾法分離含鉻水溶液的研究姓名：劉作華申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：物理化學(xué)指導(dǎo)教師：陶長(zhǎng)元20000601重慶大學(xué)碩士學(xué)位論文AbstractABSTRACTPoly(vinylidenefluoride)(PVDF、resinisaIlidealmembranematerialformembranedistillationwiththepropertiesincludingeasypreparationand90

2、0dhydrophobicityThemechanismandthepreparationprocessofthePVDFmicroporousmembranebyphaseinversionwerestudiedinthispapernlemechanismsofheatandmasstransfersinmembranecastingprocessaswellasthefactorsassociatedwiththemembrane

3、qualitywereinvestigatedTheresultsdenotedthattheoptionalprocessformembranepreparationwerethatcastingsolutionsmaturingat6080“Cfor懶castingontheplainglassthenimmersingintothecoagulationsolutionsimmediatelytoformmembranenlepo

4、rosiliesofpreparedandcommercialmembranesweredeterminedbywetmembranemethodthecharacteris6csofthemembranesincludingmaxilnutrlporesizeaverageporesizeandtheporesizedistributionweremeasuredonGTLDMembranePoreDeterminationInstr

5、umentTheresultsindicatedthatthemaximumporesizeandtheporosityofthecommercialmembraneswereapproximatetothoseofpreparedmembranesrespectively帆iletheporesizedistributionsofthecommercialmembraneswlrebetterthanthatoftheprepared

6、onesinthattheseparationperformancesofthecommercialmembranesWelesuperiortothatofpreparedonesAsetofvacuummembranedistillationf~W皿1experimentalapparatuswagassembledtoseparatetheaqueouschromiumsolutionsTheprocessconditionswe

7、reinvestigatedandtheop缸mlseparati_【3nconditionsweredbIa嘲Undertheoptimalprocessconditions，intheseparationofCr3solutions，therejectionratiosofthepreparedmembraneswereover50％whilethemembranefluxesofthetwokindsofmembraneswere

8、over40kgm。血1IntreatingtheaqueousC，solutionstherejectionratioswereover9925％，whilemembranefluxesgett03452kgm2h’At諳trealrnentofCr“aqueoussolutionsrangingfrom50mgZLto100mg／L，thedischargesCallreachthecriteriacontrollingopnlee

9、xlx：aimentalresultsshowedthatwiththeincreasingofthefeedratethelaminarlayerbecomesthinnertheconcentrationandtemperaturepolarizationgetssmallerwhichcouldconlributetotheheatandmasstransferSOmembranefluxesandrejectionratiosw

10、eiebothimprovedThedrivingforceinVMDincludestemperatureandpressuredifferencesofllansmembraneV●Ⅱ)isanewkindofseparationtechnologyItisofgreatapplicationresearchvalueKeywords：vaCllHID_membranedistillation(VMD)，PVDF，chromiuma

溫馨提示

  • 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論