[1]苏晓,韩正双,张楠,等.天津某水库2-MIB季节性变化规律及来源分析[J].中国给水排水,2020,36(19):39-45.
　SU Xiao,HAN Zheng-shuang,ZHANG Nan,et al.Seasonal Variation Rule and Source Analysis of 2-MIB in a Reservoir of Tianjin[J].China Water & Wastewater,2020,36(19):39-45.
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天津某水库2-MIB季节性变化规律及来源分析

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第19期 页码: 39-45 栏目: 出版日期: 2020-10-01
Title:
Seasonal Variation Rule and Source Analysis of 2-MIB in a Reservoir of Tianjin
作者:
苏晓1,2,3，韩正双4，张楠2，李荣2，闫慧敏4，胡建坤2，韩宏大2，季民1
(1.天津大学环境科学与工程学院，天津300054；2.天津水务集团有限公司，天津300042；3.天津市自来水集团有限公司，天津300040；4.天津市公用事业设计研究所，天津300100)
Author(s):
SU Xiao1,2,3,HAN Zheng-shuang4,ZHANG Nan2,LI Rong2,YAN Hui-min4,HU Jian-kun2,HAN Hong-da2,JI Min1
(1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300054， China; 2. Tianjin Water Group Co. Ltd., Tianjin 300042， China; 3. Tianjin Waterworks Group Co. Ltd., Tianjin 300040， China; 4. Tianjin Public Utility Design ＆ Research Institute， Tianjin 300100， China)
关键词:
2-MIB; 溶解态; 结合态; 假鱼腥藻; 相关性; 季节性变化
Keywords:
2-MIB; dissolved state; bound state; Pseudanabaena sp.; correlation; seasonal variation
摘要:
针对天津某水库2-甲基异莰醇（2-MIB）导致的饮用水源嗅味问题，分析了2019年3月—2020年2月2-MIB浓度的变化及优势藻的演变情况。结果表明，2-MIB在6月初、8月中旬和11月中旬出现3次峰值；2-MIB在夏季和秋初主要以结合态形式存在，而在秋末和冬季主要以溶解态形式存在；水库水中优势藻逐渐由春季的硅藻和绿藻演变为夏秋季的蓝藻，再演变为冬季的硅藻和隐藻，藻类数量呈现先升高后降低的变化趋势。相关性分析结果表明，水库水中溶解态2-MIB与假鱼腥藻的占比有极为显著的正相关性，假鱼腥藻与铜绿微囊藻具有极为显著的负相关性，由此可以推断水库水中2-MIB主要是由假鱼腥藻代谢产生的。
Abstract:
Aiming at the taste and odor problem in drinking water source caused by 2-methylisoborneol (2-MIB) in a reservoir of Tianjin, variation in 2-MIB concentration and evolution of dominant algae in the reservoir from March 2019 to February 2020 were analyzed. The 2-MIB had three peaks in early June, mid-August and mid-November. 2-MIB mainly existed as a bound state in summer and early autumn, while it mainly existed as a dissolved state in late autumn and winter. Meanwhile, the dominant algae in the reservoir gradually evolved from Bacillariophyta and Chlorophyta in spring to Cyanophyta in summer and autumn, and then to Bacillariophyta and Cryptophyta in winter. The quantity of algae increased firstly and then decreased during these periods. The results of correlation analysis showed that there was a significant positive correlation between the concentration of dissolved 2-MIB in the reservoir and the proportion of Pseudanabaena sp., and the latter had an extremely significant negative correlation with the proportion of Microcystis aeruginosa. It thus could be inferred that 2-MIB was mainly produced by metabolism of Pseudanabaena sp. in the reservoir.
更新日期/Last Update: 2020-10-01