Structural property and risk assessment of loose deposits in drinking water distribution systems
文献类型：期刊论文
| 作者 | Zhuang, Yuan; Qin, Xinyi; Li, Yongtong; Xu, Shuo; Yu, Ying; Gu, Yifan; Shi, Baoyou
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| 刊名 | AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY
 |
| 页码 | - |
| 关键词 | discoloration events drinking water distribution system loose deposits |
| ISSN号 | 2709-8028 |
| 英文摘要 | Discoloration events caused by loose deposits resuspension in drinking water distribution systems (DWDS) are main aspects of customer complaints across the world, but the understanding of the potential risks of loose deposits is insufficient. In this study, loose deposits in real DWDS were collected from regions frequently experiencing 'yellow water'. Cytotoxicity of healthy human liver cells was used to evaluate the toxicity risks of the particle samples. The results showed that the loose deposits would have a realistic discoloration risk (turbidity > 10 NTU) when their concentrations were higher than 10 mg/L. The water sample containing 1,000 mg/L loose deposits had dark yellow color (100-300 PCU) and cytotoxicity (viability of human liver cells during cytotoxicity tests 59.18-80.69%), while the water sample containing 1 mg/L loose deposits did not have obvious color (<15 PCU) and cytotoxicity (>97.00%). Particle size showed a stronger correlation with relative viability (r = 0.761) than other properties (specific area, metal content, contact angle, saturation magnetization and electron transfer number). However, it is interesting to notice that both turbidity and color had a low correlation with relative viability, thus the toxicity of the particles could not be properly judged using turbidity or color. This study gives an important guidance that though the loose deposits could be visualized during water discoloration, its toxicity risks could not be evaluated through aesthetic indicators. |
| WOS研究方向 | Engineering, Civil ; Water Resources |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46267]  |
| 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.Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhuang, Yuan,Qin, Xinyi,Li, Yongtong,et al. Structural property and risk assessment of loose deposits in drinking water distribution systems[J]. AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY:-. |
| APA | Zhuang, Yuan.,Qin, Xinyi.,Li, Yongtong.,Xu, Shuo.,Yu, Ying.,...&Shi, Baoyou. |
| MLA | Zhuang, Yuan,et al."Structural property and risk assessment of loose deposits in drinking water distribution systems".AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY |
入库方式： OAI收割
来源：生态环境研究中心
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