教師資料查詢 | 類別: 期刊論文 | 教師: 李柏青 PO-CHING LEE (瀏覽個人網頁)

標題:Compressed Air-Assisted Solvent Extraction (CASX) for Chromate Removal: Regeneration and Recovery
學年98
學期1
出版(發表)日期2009/12/01
作品名稱Compressed Air-Assisted Solvent Extraction (CASX) for Chromate Removal: Regeneration and Recovery
作品名稱(其他語言)
著者Lee, Po-Ching; Li, Chi-Wang; Chen, Shiao-Shing; Chiu, Hao-Chun
單位淡江大學水資源及環境工程學系
出版者Philadelphia: Taylor & Francis Inc.
著錄名稱、卷期、頁數Separation Science and Technology 44(16), pp.3911-3922
摘要Compressed air-assisted solvent extraction (CASX), was employed to remove Cr(VI) from synthetic wastewater and electroplating wastewater with the effects of pH, extractant=diluent ratio, solvent dosage, and competing anion concentration on Cr(VI) removal efficiency explored. The dosages required for Cr(VI) removal are dependent upon the speciation of Cr(VI) with molar ratio between Aliquat 336 and Cr(VI) of 1:1 and 2.8:1 for HCrO4- and CrO24-, respectively. Efficiency of Cr(VI) regeneration is influenced by pH and chloride ion concentrations. Based on the affinity order of HCrO4- > Cl- > CrO24- > OH- to Aliquat 336 concluded from this study, alternation of Cr(VI) species to CrO24- by raising solution pH up to 8 and addition of chloride (50 times more of Aliquat 336 dosage applied) can satisfy the Cr(VI) regeneration from the spent solvent phase.
關鍵字Aliquat 336; Cr(VI); recovery; solvent extraction
語言英文
ISSN0149-6395;1520-5754
期刊性質
收錄於
產學合作
通訊作者Li, Chi-Wang
審稿制度
國別美國
公開徵稿
出版型式紙本;電子版
相關連結
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