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| DOI | 10.1016/j.watres.2024.121241 |
| Removal of strontium by nanofiltration: Role of complexation and speciation of strontium with organic matter | |
| 发表日期 | 2024 |
| ISSN | 0043-1354 |
| EISSN | 1879-2448 |
| 起始页码 | 253 |
| 卷号 | 253 |
| 英文摘要 | Strontium (Sr) removal from water is required because excessive naturally occurring Sr exposure is hazardous to human health. Climate and seasonal changes cause water quality variations, in particular quality and quantity of organic matter (OM) and pH, and such variations affect Sr removal by nanofiltration (NF). The mechanisms for such variations are not clear and thus OM complexation and speciation require attention. Sr removal by NF was investigated with emphasis on the role of OM (type and concentration) and pH (2-12) on possible removal mechanisms, specifically size and/or charge exclusion as well as solute -solute interactions. The filtration results show that the addition of various OM (10 types) and an increase of OM concentration (2-100 mgC.L-1) increased Sr removal by 10-15%. The Sr -OM interaction was enhanced with increasing OM concentration, implying enhanced size exclusion via Sr -OM interaction as the main mechanism. Such interactions were quantified by asymmetric flow field -flow fractionation (FFFF) coupled with an inductively coupled plasma mass spectrometer (ICP-MS). Both extremely low and high pH increased Sr removal due to the enhanced charge exclusion and SrOM interactions. This work elucidated and verified the mechanism of OM and pH on Sr removal by NF membranes. |
| 英文关键词 | Physico-chemical water treatment; flow field -flow -fractionation; cation -organic matter interaction; membrane technology; water quality; solute -solute interactions |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS类目 | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| WOS记录号 | WOS:001192279500001 |
| 来源期刊 | WATER RESEARCH
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/296774 |
| 作者单位 | Helmholtz Association; Karlsruhe Institute of Technology |
| 推荐引用方式 GB/T 7714 | . Removal of strontium by nanofiltration: Role of complexation and speciation of strontium with organic matter[J],2024,253. |
| APA | (2024).Removal of strontium by nanofiltration: Role of complexation and speciation of strontium with organic matter.WATER RESEARCH,253. |
| MLA | "Removal of strontium by nanofiltration: Role of complexation and speciation of strontium with organic matter".WATER RESEARCH 253(2024). |
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