[1]牛佳,黄怡婷,许薇,等.水滞留影响下不同供水末端的微生物群落对比[J].中国给水排水,2022,38(5):14-23.
　NIUJia,HUANGYi-ting,XUWei,et al.Comparison of Microbial Communities in Different Manners of Tap Water Supply as Affected by Water Stagnation[J].China Water & Wastewater,2022,38(5):14-23.
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水滞留影响下不同供水末端的微生物群落对比

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第5期 页码: 14-23 栏目: 出版日期: 2022-03-01
Title:
Comparison of Microbial Communities in Different Manners of Tap Water Supply as Affected by Water Stagnation
作者:
牛佳1， 黄怡婷1， 许薇1， 龚珑聪2， 吴玲婕1， 陈淑婷1， 史婷1， 陈晓晨3
（1.福建工程学院生态环境与城市建设学院 城镇给排水系统安全与节能工程技术中心，福建 福州 350118；2.福州市自来水公司，福建 福州 350001；3.福州大学环境与资源学院 福建省农村废弃物绿色循环技术工程研究中心，福建 福州 350108）
Author(s):
NIU　Jia1， HUANG　Yi-ting1， XU　Wei1， GONG　Long-cong2， WU　Ling-jie1， CHEN　Shu-ting1， SHI　Ting1， CHEN　Xiao-chen3
（1. Center of Safe and Energy?saving Engineering Technology for Urban Water Supply and Drainage System， School of Ecological Environment and Urban Construction， Fujian University of Technology， Fuzhou 350118， China； 2. Fuzhou Water Supply Company， Fuzhou 350001， China； 3. Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology， College of Environment and Resources， Fuzhou University， Fuzhou 350108， China）
关键词:
饮用水水质;  末端供水方式;  水滞留;  生物稳定性;  细菌群落结构;  古菌群落结构;  高通量测序
Keywords:
drinking water quality;  water supply manner;  water stagnation;  biological stability;  bacterial community structure;  archaeal community structure;  high?throughput sequencing
摘要:
针对龙头水滞留带来的水质生物稳定性问题，选取三种末端供水方式（集中式供水、二次供水、过滤器出水）的龙头水为研究对象，运用高通量测序技术全面探索和比较了水滞留导致的水中微生物群落结构的变化。结果表明：在细菌方面，滞留后三种末端供水方式的龙头水中均以假单胞菌属为主，一些条件致病菌属，如副衣原体属、军团菌属、分枝杆菌属等也被检出。三种供水方式中，二次供水表现出较低的物种丰富度和较高的生物多样性，且其群落结构与另外两种方式显著不同。在古菌方面，滞留前集中式供水以西藏嗜盐碱球菌属为主，二次供水主要为未鉴定菌属，过滤器出水主要为甲烷食甲基菌属；滞留后，仅集中式供水和过滤器出水的古菌群落结构发生改变，均以产甲烷古菌为主，而二次供水则以氨氧化古菌为主。该研究成果有助于掌握饮用水中微生物信息，并可为解决水滞留带来的饮用水生物安全问题和健康风险评估提供基础数据及参考。
Abstract:
An in situ study was carried out in order to investigate the problem of biological stability of tap water caused by water stagnation. Tap water from three types of water supply manner were selected, i.e. the centralized water supply, secondary water supply and water filter. High-throughput sequencing was applied to investigate and compare the changes of microbial community structures in the tap water caused by water stagnation. The results showed that Pseudomonas was the dominant genus of bacteria community after stagnation in all the three water supply manners. Meanwhile, some opportunistic pathogens, such as Parachlamydia, Legionella and Mycobacterium were detected. Among them, tap water of secondary water supply system showed the lowest species richness and highest biodiversity. Besides, the bacterial community structure in the tap water of secondary water supply system was different from those in the other two water supply manners. As for archaea, before stagnation, water from the centralized water supply system was dominated by Halalkalicoccus. However, water from secondary water supply was dominated by unclassified genus. And tap water after filter was dominated by Methanomethylovorans. After stagnation, archaeal community structure changed only in the tap water of the centralized water supply and filter effluent. And both of them were dominated by methanogens. On the other hand, tap water of the secondary water supply system was dominated by ammonia?oxidizing archaea. The outcome of this study is bound to enrich the scientific knowledge of microbial information in the tap water. It will provide the first?hand information and references for solving the problems of biological safety and assessing the health risk of drinking water stagnation.

相似文献/References:

[1]郭杨.江苏省城乡饮用水水质安全保障实践[J].中国给水排水,2023,39(4):36.
　GUOYang.Practice of Drinking Water Quality Security in Urban and Rural Areas of Jiangsu Province[J].China Water & Wastewater,2023,39(5):36.

更新日期/Last Update: 2022-03-01