通过光学索引跟踪整个城市供水系统中溶解有机物的变化
Jinjin Lin1, Liyang Yang1, Wan-E Zhuang2
1College of Environment and Safety Engineering, Fuzhou University, Fuzhou, Fujian, PR China.
Journal of environmental management
|April 17, 2024
概括
通过先进的臭氧生物活性炭处理,提高了溶解有机物 (DOM) 的去除. 在分配系统中,DOM质量保持稳定,次要供应影响有限,确保饮用水质量.
科学领域:
- 环境科学 环境科学
- 水的化学 水的化学
- 水处理工程水处理工程
背景情况:
- 溶解有机物 (DOM) 显著影响饮用水质量和处理效率.
- 在整个供水系统中对DOM的全面研究,包括二次供水效应,是有限的.
- 了解DOM动态对于确保安全和高质量的饮用水至关重要.
研究的目的:
- 在一个完整的供水系统中调查溶解有机物 (DOM) 的特性.
- 评估先进 (O3-BAC) 与传统饮用水处理方法在DOM去除方面的有效性.
- 评估二次供水对DOM成分和质量的影响.
主要方法:
- 使用溶解有机碳 (DOC) 分析,吸收光谱和光激发发射矩阵-并行因子分析 (EEM-PARAFAC).
- 确定了四个光DOM组件:类似于的 (C1-C2),类似于的 (C3) 和类似于铁的 (C4).
- 在臭氧生物活性炭 (O3-BAC) 和常规处理过程之间比较DOM去除效率.
主要成果:
- 与传统方法相比,先进的O3-BAC治疗显示出更好的DOC,C1和C3的去除.
- 吸收系数和光元件 (C1-C4) 与DOC有很强的相关性,表明它们在跟踪DOM变化中的实用性.
- 在分配系统中,DOM保持稳定,突出了处理水质的关键作用;光学指数区分了水源.
- 二级供水对整体DOM的影响很小,尽管有机碳和吸收的局部变化得到观察.
结论:
- 先进的O3-BAC处理更有效地去除对水质至关重要的特定DOM分数.
- 在分销网络中的DOM稳定性强调了初始治疗有效性的重要性.
- DOM的光学特性可以作为水源识别的指标.
- 二次供水对研究系统的DOM整体质量构成有限的风险.
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