Comparison of organic matter removals in single-component and bi-component systems using enhanced coagulation and magnetic ion exchange (MIEX) adsorption
文献类型：期刊论文
| 作者 | Chen, Yingying; Xu, Weiying; Zhu, Hongjian; Wei, Dong; Wang, Ning; Li, Mengting |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 210页码:672-682 |
| ISSN号 | 0045-6535 |
| 关键词 | Single-component system Bi-component system Coagulation MIEX resin Synergistic effect |
| 文献子类 | Article |
| 英文摘要 | Natural organic matter (NOM) in aquatic environments have a significant impact on NOM-organic compound interactions, which could strongly affect the distribution and transformation of organic compounds during water treatment. This study focused on the removals of NOM (humic acid, HA) and synthetic organic matter (ibuprofen, IBP) through enhanced coagulation and magnetic ion exchange (MIEX) resin adsorption in single and bi-component systems. Two coagulants, traditional aluminum sulfate (AS) and lab-prepared polyaluminum chloride (PACI), were employed. The charge properties, particle size distribution, and fractal dimension (D-integral) during organic matter removal were studied in both the single and bi-component systems to explore the purification behaviors and mechanistic effects of interactions between coagulants, MIEX, and organic matters. The experimental results indicated that the Al-based coagulants could remove over 80% of HA in both the single and IBP-HA combined systems, while the presence of HA could considerably improve the IBP removal rate. The aggregates formed during single-component coagulation were larger, but weaker and more loosely structured than those formed in the bi-component system under the same coagulation conditions. In the single-component system, the maximum removal efficiencies of IBP and HA by MIEX adsorption were 65% and 72%, respectively, at a resin dosage of 20.0 mL/L and mixing time of 60 min. Under the same conditions, the removals of these components in the bi-component system were improved to 68% and 98%, respectively. The reaction rate between IBP and MIEX resin was found faster than that between HA and MIEX resin. (C) 2018 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41333]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Chen, Yingying,Xu, Weiying,Zhu, Hongjian,et al. Comparison of organic matter removals in single-component and bi-component systems using enhanced coagulation and magnetic ion exchange (MIEX) adsorption[J]. CHEMOSPHERE,2018,210:672-682. |
| APA | Chen, Yingying,Xu, Weiying,Zhu, Hongjian,Wei, Dong,Wang, Ning,&Li, Mengting.(2018).Comparison of organic matter removals in single-component and bi-component systems using enhanced coagulation and magnetic ion exchange (MIEX) adsorption.CHEMOSPHERE,210,672-682. |
| MLA | Chen, Yingying,et al."Comparison of organic matter removals in single-component and bi-component systems using enhanced coagulation and magnetic ion exchange (MIEX) adsorption".CHEMOSPHERE 210(2018):672-682. |
入库方式： OAI收割
来源：生态环境研究中心
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