Evaluation of enhanced coagulation coupled with magnetic ion exchange (MIEX) in natural organic matter and sulfamethoxazole removals: The role of Al-based coagulant characteristic
文献类型：期刊论文
| 作者 | Xu, Jie; Xu, Weiying; Wang, Dongsheng; Sang, Guoqing; Yang, Xiaoshuai |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2016-07-14 |
| 卷号 | 167期号:0页码:70-78 |
| 关键词 | Enhanced coagulation Aluminum species MIEX Organic matters |
| 英文摘要 | The removals of humic acid (HA) and a kind of antibiotic compound by enhanced coagulation (EC) employing various Al-based coagulants with, and without MIEX resin pre-treatment were systematically investigated in this study. A range of techniques were used to evaluate the purification behaviors and mechanisms of the coagulation and MIEX adsorption processes. The experimental results indicated that sufficient dose of Al-based coagulants removed 60-70% of HA, while traditional Al-2(SO4)(3) (AS) coagulant with low dose of 1.0-5.0 mg/L coupled with MIEX contributed to a removal rate of 85%. For sole coagulation, Al-13 (Al13O4(OH)(24)(H2O)(12)](7+)) only removed 11% to <23% of SMX, while AS and polyaluminum chloride (PACl) contributed to comparable removal of about 40%, indicating charge neutralization was not the major mechanism in SMX removal. The SMX removal could be improved to 68-78% by MIEX pre-treatment. Dynamic floc sizes during coagulation processes were studied using a laser diffraction particle sizing device. The results demonstrated Al-13 led to the smallest flocs, while the adsorption and sweep mechanisms in AS and PACT coagulation processes resulted in larger aggregates. Besides, the pretreatment of MIEX could evidently decrease the floc sizes for all the coagulants. (C) 2016 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36041]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Jie,Xu, Weiying,Wang, Dongsheng,et al. Evaluation of enhanced coagulation coupled with magnetic ion exchange (MIEX) in natural organic matter and sulfamethoxazole removals: The role of Al-based coagulant characteristic[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2016,167(0):70-78. |
| APA | Xu, Jie,Xu, Weiying,Wang, Dongsheng,Sang, Guoqing,&Yang, Xiaoshuai.(2016).Evaluation of enhanced coagulation coupled with magnetic ion exchange (MIEX) in natural organic matter and sulfamethoxazole removals: The role of Al-based coagulant characteristic.SEPARATION AND PURIFICATION TECHNOLOGY,167(0),70-78. |
| MLA | Xu, Jie,et al."Evaluation of enhanced coagulation coupled with magnetic ion exchange (MIEX) in natural organic matter and sulfamethoxazole removals: The role of Al-based coagulant characteristic".SEPARATION AND PURIFICATION TECHNOLOGY 167.0(2016):70-78. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。