溶解有机物度和组成的季节性变化在户外系统中的银行过模拟系统
Muhammad Zeeshan1, Omamah Ali1, Shamas Tabraiz2
1German Environment Agency, Section II 3.3, Schichauweg 58, 12307, Berlin, Germany; Technische Universität Berlin, Water Treatment, KF4, Str. des 17. Juni 135, 10623, Berlin, Germany.
Journal of environmental sciences (China)
|October 1, 2023
概括
表面水溶解有机物 (DOM) 季节性变化影响银行过 (BF). BF有效地去除了DOM,但不管环境因素如何,一个不变的不可降解的DOM分数仍然存在.
科学领域:
- 环境科学 环境科学
- 水的质量 水的质量
- 有机地化学 有机地化学
背景情况:
- 表面水中的溶解有机物 (DOM) 呈现出显著的季节性变化.
- 季节性因素,如降雨,紫外线辐射和温度影响DOM的特征和度.
- 了解DOM动态对于优化水处理过程至关重要,特别是银行过 (BF).
研究的目的:
- 为了研究地表水-BF系统中DOM度和组成的全年变化.
- 描述季节性变化在银行过过程中对DOM的影响.
- 确定影响BF中DOM删除效率的因素.
主要方法:
- 在一个循环的室外池及其连接的BF通道中全年监测DOM度和光.
- 对DOM成分的分析,重点是湿性物质和可降解/不可降解分量.
- 对DOM去除速率与影响DOM度,温度和氧化还原条件之间的相关性分析.
主要成果:
- 表面水中的DOM度在夏季 (八月) 与冬季 (十一月) 相比显著增加.
- 夏季DOM富含可降解分子,而冬季DOM则以不可降解分子为主.
- 通过BF去除DOM变化 (4-39%) 和与流入的DOM相关,但在废水中仍然存在恒定的不可降解的DOM.
结论:
- 银行过有效地去除了大量的DOM,特别是可降解的部分.
- 一个稳定的,不可降解的DOM分量始终通过银行过系统.
- 在BF中DOM的去除效率主要与影响DOM度有关,在研究系统内不受温度,氧化还原或紫外线辐射的显著影响.
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