Comparative investigation on removal characteristics of tetracycline from water by modified wood membranes with different channel walls
文献类型：期刊论文
| 作者 | Liu, Minmin; Zhao, Zhiying; Yu, Wenzheng
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-06-25 |
| 卷号 | 775页码:- |
| 关键词 | Wood membrane Tetracycline Wood structure Adsorption Water treatment |
| ISSN号 | 0048-9697 |
| 英文摘要 | The alkali-innocuous citric acid (CA) modified wood membranes (WMs) have been developed as facile, economical, and effective adsorption membranes to remove tetracycline (TC) from water. However, TC removal by modified WMs with different types of wood channel walls have rarely been compared. Therefore, in this study, modified WMs were prepared with pinewood (PW) and basswood (BW). The PW and BW WMs before and after modification were characterized by SEM, EDX, XRD, ATR-FTIR, TGA, contact angle and zeta potential. After modification, cellulose I in cellulose crystal structures of raw WM transformed to cellulose II and the contents of carboxylic groups for PW and BW were enhanced to make the hydrophilicity of WM surface increased. Compared with modified PW WMs, particles formed on the channel walls of modified BW WMs containing vessel pits to make more carboxylic groups introduced. The TC adsorption breakthrough curves showed that the 6 wt% alkali-CA modified BW had an effective filtration volume of 1968 bed volume (BV) compared with the 4 wt% alkali-CA modified PW of 1205 BV as the influent TC and breakthrough point were chosen at 2 and 0.5 mg/L, respectively. At low pH, TC complex with WM surfaces through Lewis acid-base interaction. Zwitterionic TC was shown to favor adsorption onto WM via hydrogen bonding at pH of around 5. With further increasing pH, TC adsorption efficiency decreased due to the electrostatic repulsion. The costs of modified BW and PW are about 0.0054-0.0126 US$/m(3) and 0.01-0.024 US$/m(3) for a low TC concentration effluent (0-0.5 mg/L), respectively. This work shed a new sight on how to develop economical and effective adsorption WMs for contaminants removal from water. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46181]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Northeast Forestry Univ, Coll Forestry, Harbin 150040, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Minmin,Zhao, Zhiying,Yu, Wenzheng. Comparative investigation on removal characteristics of tetracycline from water by modified wood membranes with different channel walls[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,775:-. |
| APA | Liu, Minmin,Zhao, Zhiying,&Yu, Wenzheng.(2021).Comparative investigation on removal characteristics of tetracycline from water by modified wood membranes with different channel walls.SCIENCE OF THE TOTAL ENVIRONMENT,775,-. |
| MLA | Liu, Minmin,et al."Comparative investigation on removal characteristics of tetracycline from water by modified wood membranes with different channel walls".SCIENCE OF THE TOTAL ENVIRONMENT 775(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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