Effects of disinfectants and particles on the occurrence of different microorganisms in drinking water distribution systems
文献类型：期刊论文
| 作者 | Huo, Lixin; Pan, Linlin; Chen, Ruya ; Shi, Baoyou; Wang, Haibo; He, Shouyang
|
| 刊名 | ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 7期号:5页码:983-992 |
| ISSN号 | 2053-1400 |
| 英文摘要 | The effects of disinfectants and particles on the occurrence of different bacteria, including total coliforms, heterotrophic plate count (HPC), different opportunistic pathogens (OPs) and amoeba hosts, were investigated in drinking water distribution systems (DWDSs) from five drinking water treatment plants. Total coliforms were not detected in all samples. HPCs were all below 500 CFU mL(-1) when the free chlorine residual was higher than 0.05 mg L-1 and the total chlorine residual was higher than 0.35 mg L-1. HPC showed a good relationship with different OPs. Limiting HPC could also control OPs growth in DWDSs. However, Legionella spp., Pseudomonas aeruginosa and Hartmannella vermiformis were 100% positively detected, and Mycobacterium spp. and Legionella pneumophila were more than 90% positively detected in all samples, and pose a health risk to people. Maintaining the free chlorine residual at 0.15-0.20 mg L-1, and the total chlorine residual at 0.35-0.50 mg L-1 can control the OPs growth in DWDSs very well. However, apart from enhancing disinfectant residual concentration, controlling the particle number can also limit OPs growth. This investigation suggests that the particle number should be controlled below 300 in order to control Mycobacterium avium, Legionella pneumophila, and Acanthamoeba spp. growth. The corresponding turbidity should be controlled at 0.25-0.35 NTU. Therefore, there may be a trade-off in the selection of disinfectant residuals or particles to control the OPs growth in DWDSs. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46197]  |
| 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.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, 18 Shuang Qing Rd, Beijing 100085, Peoples R China 2.Guizhou Univ, Minist Educ, Key Lab Karst Georesources & Environm, Guiyang 550025, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huo, Lixin,Pan, Linlin,Chen, Ruya,et al. Effects of disinfectants and particles on the occurrence of different microorganisms in drinking water distribution systems[J]. ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,2021,7(5):983-992. |
| APA | Huo, Lixin,Pan, Linlin,Chen, Ruya,Shi, Baoyou,Wang, Haibo,&He, Shouyang.(2021).Effects of disinfectants and particles on the occurrence of different microorganisms in drinking water distribution systems.ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,7(5),983-992. |
| MLA | Huo, Lixin,et al."Effects of disinfectants and particles on the occurrence of different microorganisms in drinking water distribution systems".ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY 7.5(2021):983-992. |
入库方式： OAI收割
来源：生态环境研究中心
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