南方某水库异味物质溯源及其成因分析
PDF下载 (153)王炎东,吕文洲,景 晓,钱欣聪,甘慧慧.南方某水库异味物质溯源及其成因分析[J].宁波大学学报(理工版),2025,38(1):82-90.DOI:10.20098/j.cnki.1001-5132.2024.0803
WANG Yandong,LÜ Wenzhou,JING Xiao,QIAN Xincong,GAN Huihui.Source identification and cause analysis of odorous substances in a reservoir in southern China[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(1):82-90.DOI:10.20098/j.cnki.1001-5132.2024.0803
| Title: | Source identification and cause analysis of odorous substances in a reservoir in southern China |
| 作者: | 王炎东, 吕文洲, 景 晓, 钱欣聪, 甘慧慧 |
| Author(s): | WANG Yandong, LÜ Wenzhou, JING Xiao, QIAN Xincong, GAN Huihui |
| 关键词: | 水库; 饮用水水源地; 嗅味物质; 溯源; 成因分析 |
| Keywords: | reservoir; drinking water source area; odorous substances; source identification; cause analysis |
| 分类号: | X524 |
| DOI: | 10.20098/j.cnki.1001-5132.2024.0803 |
| 文献标识码: | A |
| 摘要: | 随着水体富营养化的加剧, 以由丝状蓝藻大量繁殖引起的2-甲基异莰醇(2-MIB)为主的饮用水水源地水体嗅味问题频繁发生. 为确定南方某水库型饮用水水源地嗅味物质的来源及其成因, 自2023年1月至2023年12月对该水库进行了为期1a的水质监测, 分析了常见的嗅味物质种类、质量浓度以及藻类. 结果表明, 该水库主要嗅味物质为2-MIB, 其质量浓度呈现出季节性差异, 春末夏初最高可达144ng·L−1; 通过mic功能基因高通量测序技术确定了假鱼腥藻是该水库中2-MIB的主要生产者; 最后通过水质与嗅味物质的相关性分析, 表明了硝氨比、氨氮、水温及总磷是影响该水库2-MIB质量浓度的主要环境因子. |
| Abstract: | As the eutrophication of water bodies intensifies, the occurrence of odor in drinking water sources, primarily caused by the proliferation of filamentous cyanobacteria and resulting in the production of 2-methylisoborneol (2-MIB), has become increasingly frequent. This has led to numerous user complaints, significantly impacting the reputation of water utility companies. To identify the sources and causes of odor compounds in a reservoir-type drinking water source in southern China, a year-long water quality monitoring study was conducted from January 2023 to December 2023. The study analyzed common odor compounds, their concentrations, and the associated algae. The results indicated that 2-MIB was the primary odor compound in the reservoir, with its concentration exhibiting seasonal variation, peaking at 144ng·L−1 in late spring and early summer. High-throughput sequencing of the mic functional gene identified Pseudanabaena as the main producer of 2-MIB in the reservoir. Furthermore, correlation analysis between water quality and odor compounds revealed that the nitrate to ammonia ratio, ammonia nitrogen, water temperature, and total phosphorus were the main environmental factors influencing the concentration of 2-MIB in the reservoir. |
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| 备注/Memo: | 收稿日期: 2024−08−07. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 宁波大学可持续排水实验室开放课题; 企业委托项目（HX2023000403）. 第一作者: 王炎东, 硕士研究生, 主要研究方向: 饮用水安全与保障. E-mail: wyd18365049158@163.com *通信作者: 吕文洲, 博士/教授, 主要研究方向: 废水生物处理及资源化、水质安全. E-mail: luwenzhou@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
