Revisiting the effect of boiling on halogenated disinfection byproducts, total organic halogen, and cytotoxicity in simulated tap water
文献类型：期刊论文
| 作者 | Zhao, Jiayan; Han, Liangliang; Tan, Suo; Chu, Wenhai; Dong, Huiyu ; Zhou, Qing; Pan, Yang
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2022 |
| 卷号 | 309页码:136577-1-8 |
| ISSN号 | 0045-6535 |
| 关键词 | Disinfection byproducts Drinking water Boiling Cytotoxicity |
| 英文摘要 | Boiling is a widely adopted household tap water treatment method because of its ability to inactivate chlorine -resistant pathogenic bacteria, and to reduce certain groups of disinfection byproducts (DBPs). From a more comprehensive point of view, this study revisited the effect of boiling on four groups of 17 aliphatic DBPs and six groups of 44 aromatic DBPs in both simulated chlorinated and chloraminated tap water samples, with a special focus on the changes of total organic halogen (TOX) and cytotoxicity. Results showed that the concentrations of aliphatic DBPs substantially decreased during boiling via volatilization (trihalomethanes and chloral hydrate) and hydrolysis (haloacetamides) in chlorinated and chloraminated tap water samples. The concentrations of aromatic DBPs during boiling generally followed an increasing trend due to decarboxylation of polycarboxylic precursors in chlorinated tap water samples, and showed a first increasing and then decreasing trend in chlor-aminated tap water samples. A sharp decreasing of TOX occurred in the heating process of tap water samples from room temperature to 100 degrees C, and a relatively gentle decreasing was kept in the prolonged boiling process till 5 min. The most abundant DBP group in the tap water samples without boiling was trihalomethanes, and was replaced by haloacetic acids with boiling for 5 min. Continuous boiling for 5 min substantially reduced the cytotoxicity of chlorinated and chloraminated water samples by 52.6% and 21.3%, respectively. Reduction of cytotoxicity matched well with the reduction of TOCl (r = 0.907, P < 0.01), TOBr (r = 0.885, P < 0.01) and TOX (r = 0.905, P < 0.01), suggesting that the cytotoxicity reduction during boiling was mainly ascribed to the reduction of halogenated DBPs. Therefore, boiling of tap water to 100 |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48575]  |
| 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.University of Chinese Academy of Sciences, CAS 2.Research Center for Eco-Environmental Sciences (RCEES) 3.Chinese Academy of Sciences 4.Tongji University 5.Nanjing University |
| 推荐引用方式 GB/T 7714 | Zhao, Jiayan,Han, Liangliang,Tan, Suo,et al. Revisiting the effect of boiling on halogenated disinfection byproducts, total organic halogen, and cytotoxicity in simulated tap water[J]. CHEMOSPHERE,2022,309:136577-1-8. |
| APA | Zhao, Jiayan.,Han, Liangliang.,Tan, Suo.,Chu, Wenhai.,Dong, Huiyu.,...&Pan, Yang.(2022).Revisiting the effect of boiling on halogenated disinfection byproducts, total organic halogen, and cytotoxicity in simulated tap water.CHEMOSPHERE,309,136577-1-8. |
| MLA | Zhao, Jiayan,et al."Revisiting the effect of boiling on halogenated disinfection byproducts, total organic halogen, and cytotoxicity in simulated tap water".CHEMOSPHERE 309(2022):136577-1-8. |
入库方式： OAI收割
来源：生态环境研究中心
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