A new indicator of ionic polymeric flocculants for the removal of heavy metals anions: Specific charge density
文献类型：期刊论文
| 作者 | Hou, Rong1,2; Zhao, He1; Cao, Hongbin1; Ning, Jingheng2 |
| 刊名 | WATER ENVIRONMENT RESEARCH
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 91期号:9页码:888-897 |
| 关键词 | Anionic pollutants Flocculation Ionic polymer flocculants PDADMAC Removal efficiency Specific charge density |
| ISSN号 | 1061-4303 |
| DOI | 10.1002/wer.1126 |
| 英文摘要 | Ionic polymeric flocculants, as useful and widely used technology, have been applied for heavy metal pollution control. However, although molecular weight is an important indicator, it is not a comprehensive indicator for evaluating flocculation efficiencies of ionic flocculants. Herein, specific charge density (SCD), defined as charge density of unit molecular weight, is a new indicator to evaluate the performance of ionic polymer flocculants. Polydiallyldimethylammonium chloride (PDADMAC) as coagulant aid is investigated to flocculate different anionic pollutants. The results indicate that PDADMAC with a high SCD value could benefit to the flocculation efficiency of anionic pollutants. According to statistical analysis, the average pollutants residual could decrease to 8.64%-32.27% by that with high SCD value, especially for high valence pollutants with a decrease from 58.97%-60.40% to 27.35%-32.27%. The indicator of SCD values not only could characterize the performance of polymer flocculants but also provide a new sight of the flocculation mechanism of polymeric flocculants. (C) 2019 Water Environment Federation |
| WOS关键词 | KRAFT LIGNIN-ACRYLAMIDE ; MOLECULAR-WEIGHT ; DIALLYLDIMETHYLAMMONIUM CHLORIDE ; CHAIN ARCHITECTURES ; WASTE-WATER ; HUMIC-ACID ; CLAY ; CYCLOPOLYMERIZATION ; COAGULATION |
| 资助项目 | Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402001] ; National Natural Science Foundation of China[51425405] ; National Natural Science Foundation of China[51378487] ; Youth Innovation Promotion Association, CAS[2014037] ; Natural Science Foundation of Hunan Province[2018JJ2424] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000480283200007 |
| 出版者 | WILEY |
| 资助机构 | Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Natural Science Foundation of Hunan Province |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30625]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhao, He; Ning, Jingheng |
| 作者单位 | 1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing, Peoples R China 2.Changsha Univ Sci & Technol, Sch Chem & Biol Engn, Changsha, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Rong,Zhao, He,Cao, Hongbin,et al. A new indicator of ionic polymeric flocculants for the removal of heavy metals anions: Specific charge density[J]. WATER ENVIRONMENT RESEARCH,2019,91(9):888-897. |
| APA | Hou, Rong,Zhao, He,Cao, Hongbin,&Ning, Jingheng.(2019).A new indicator of ionic polymeric flocculants for the removal of heavy metals anions: Specific charge density.WATER ENVIRONMENT RESEARCH,91(9),888-897. |
| MLA | Hou, Rong,et al."A new indicator of ionic polymeric flocculants for the removal of heavy metals anions: Specific charge density".WATER ENVIRONMENT RESEARCH 91.9(2019):888-897. |
入库方式： OAI收割
来源：过程工程研究所
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