期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2013-11-01 |
| 作品名稱 | Separation of three divalent cations (Cu2 +, Co2 + and Ni2 +) by NF membranes from pHs 3 to 5 |
| 作品名稱（其他語言） | |
| 著者 | Nguyen Cong Nguyen; Chen, Shiao-Shing; Hsu, Hung-Te; Li, Chi-Wang |
| 單位 | 淡江大學水資源及環境工程學系 |
| 出版者 | Nederland: Elsevier BV |
| 著錄名稱、卷期、頁數 | Desalination 328, pp.51-57 |
| 摘要 | Separation mechanisms for the three model divalent cations with very similar atomic weights (Cu, 63.5 Da; Co, 58.9 Da and Ni, 58.7 Da) by two nanofiltration (NF) membranes (Nitto Denko ESNA and GE Osmonics DK) were studied in a cross flow module from pHs 3 to 5. The results show that the rejection order for the two selected membranes was Ni2 + > Cu2 + > Co2 + from the conducted experiments, and the removal efficiency was increased as pH was decreased for all three metals. It was found that enthalpy of hydration and concentration polarization exerted the controlling effect on the membrane selective transport rather than atomic weight, Stokes radius and hydrated radius. Besides, the counterion of sulfate enhanced the removal efficiencies, but an increase of sulfate more than 0.01 M reduced the removal efficiencies. Moreover, the removal efficiency of DK membrane was better than that of the ESNA membrane due to the positive charge of DK membrane at low pH. |
| 關鍵字 | Nanofiltration;Divalent cation;Enthalpy of hydration;Pore radius;Concentration polarization |
| 語言 | en |
| ISSN | 0011-9164 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Chena, Shiao-Shing |
| 審稿制度 | 是 |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/100119 ) |