一个集成的MDC-FO膜配置,用于同时淡化,废水处理和能量回收
Mostafa Elnahas1, Abdelsalam Elawwad2, Ayat Ghallab1
1Chemical Engineering Department, Faculty of Engineering, Cairo University Cairo University St. Giza 12613 Egypt mostafa.nahas@eng.cu.edu.eg.
RSC advances
|June 8, 2023
概括
这项研究引入了一种具有前透透膜 (FO) 的新型微生物海水淡化细胞 (MDC),可从废水中获得高淡水回收并降低盐水的盐度. 创新的设计提高了水处理和资源回收效率.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 可再生能源可再生能源是可再生能源.
背景情况:
- 微生物海水淡化电池 (MDC) 提供了一种可持续的水淡化方法.
- 整合前透 (FO) 与MDC可以增强淡水回收和盐分去除.
- 废水处理和海水淡化仍然是全球面临的关键挑战.
研究的目的:
- 开发和评估一种新型的MDC配置,其中包含一个FO膜,用于增强淡水回收和盐水淡化.
- 调查不同废水和盐溶液度对性能的影响.
- 评估化学氧气需求 (COD) 清除和盐度降低的效率.
主要方法:
- 设计了一种新的MDC配置,用于FO吸水解决方案的额外腔室.
- 废水通过阳极和阴极室顺序处理.
- 三个相同的电池在不同的度条件下以循环批量流模式运行.
- 通过测量淡水回收,盐度降低和COD去除来评估性能.
- 扫描电子显微镜 (SEM) 用于分析膜污染和生物膜形成.
主要成果:
- 从废水中回收了高达84.8%的淡水.
- 盐水的盐度降低了高达69.6%.
- 碳氧化物去除效率达到了94.4%.
- 性能受到透压差异和COD度的影响.
- SEM分析表明膜污染和生物膜的发展.
结论:
- 新的MDC-FO配置有效地从废水中回收淡水,并淡化盐水.
- 优化操作条件,如盐和COD度,对于最大限度地提高效率至关重要.
- 建议对减轻污染和生物膜形成进行进一步的研究,以确保长期的性能.
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