自由水面建造湿地:对污染物清除性能和建模方法的审查
Mohamed S Gaballah1,2, Hooshyar Yousefyani3, Mohammadjavad Karami4
1School of Engineering and Technology, Central Michigan University, Mount Pleasant, MI, 48859, USA. awad1m@cmich.edu.
概括
自由水面建造湿地有效地从废水中去除营养素,重金属,抗生素和农药. 优化设计参数,如液压保留时间和水深,是这些系统有效去除污染物的关键.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 湿地系统 湿地系统
背景情况:
- 自由水面建造湿地 (FWSCWs) 越来越多地被认为具有成本效益的废水处理.
- 这些系统面临着越来越多的全球兴趣,因为它们的环境效益.
- FWSCW可以同时解决废水流入中的多种共存污染物.
研究的目的:
- 审查最近关于FWSCWs污染物清除能力的文献.
- 分析FWSCW在去除营养素,重金属,抗生素和农药方面的效率.
- 讨论FWSCW中的液压和污染物清除过程的模拟方法.
主要方法:
- 对最近的科学出版物进行图书统计分析.
- 对各种污染物的FWSCW性能数据进行系统审查.
- 对设计参数和建模方法进行比较讨论.
主要成果:
- FWSCW的平均去除效率为营养素61.6%,重金属67.8%,抗生素54.7%,农药72.85%.
- 特定的设计参数优化了去除:重金属的低HRT,农药的浅水深,以及营养素的较大系统.
- 植物,特别是Typha spp. 的植物. 和Phragmites spp.,显著提高了FWSCW的性能.
结论:
- FWSCW在从废水中去除各种各样的污染物方面非常有效.
- 优化设计参数和了解植被作用对于最大限度地提高处理效率至关重要.
- 需要进一步的研究和现场验证,以进行FWSCW的先进的基于过程的建模.
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