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消毒副产品的形成潜力,以应对溶解有机物和营养投入的变化:从一个 mesocosm 研究的见解

Angela Pedregal-Montes¹, Eleanor Jennings², Dolly Kothawala³

¹Catalan Institute for Water Research (ICRA), Carrer Emili Grahit 101, Parc Científic i Tecnològic de la Universitat de Girona, 17003 Girona, Spain; University of Girona, Plaça de Sant Domènec 3, 17004 Girona, Spain.

|June 3, 2024

概括

气候变化驱动的降雨改变了溶解有机物 (DOM) 流水,影响了饮用水的安全性. 我们的研究揭示了各种各样的排水事件如何影响消毒副产品在湖泊中的前体形成.

科学领域:

环境科学环境科学
水的化学水的化学
气候变化影响气候变化影响

背景情况:

气候变化改变了降雨模式,影响了溶解有机物 (DOM) 和营养物质运输到淡水系统.
DOM是消毒副产品 (DBPs) 的关键前体,给饮用水处理带来了挑战.
由于DOM度和成分的变化,预测DBP形成是复杂的.

研究的目的:

调查DOM组成和无机营养物质如何应对各种各样的排水事件.
评估不同排水场景 (极端,间歇,连续) 对湖泊DBP前体形成的影响.
为了比较不同DOM特征的北极湖泊中的DBP前体动态 (棕色与清水).

主要方法:

利用一种新的中宇宙方法模拟了三个不同的脉冲冲流事件场景.
在两个不同DOM成分和化物含量的北极湖中同时进行实验.
采用标准化的方法来分析DOM,营养素和DBP前体的形成.

主要成果:

DBP前体变化主要是特定于地点的,并受到流水变异性的影响.
清水中宇宙在间歇性/每日脉冲下显示出增加的酸酸 (HANs) 形成潜力,与新鲜DOM相关.
棕色水中宇宙中的三甲 (THM) 形成没有受到脉冲事件的显著影响,但化物水平影响了清水系统中的THM.

结论:

降水模式的变化对湖泊生态系统中的DBP前体动态产生重大影响.
特定地点的特征,如DOM组成和化物度,对于确定DBP形成至关重要.
结果为监测DBP前体动员和变化在变化的气候条件下流域和湖泊的变化提供了洞察力.

关键词:

气候变化气候变化气候变化在 DBP 形成潜在的 DBP 形成潜力.消毒副产品消毒的副产品溶解的有机物质是有机物质.淡水淡水的水是什么在中宇宙中,有中宇宙.

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