混合电化学/膜合工艺,用于增强海水预处理和海水淡化
Anissa Aouni1, Rim Tounakti1, Badiaa Ait Ahmed2
1Laboratory of Water, Membranes and Environmental Biotechnology, CERTE, Soliman, Tunisia.
概括
混合电凝 (EC) 和膜过工艺有效预处理和淡化海水. 通过EC ((Al) /NF ((UTC60)) 组合,有机物得到了很高的去除,盐度降低,污染最小,回收高.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 水处理技术 水处理技术
背景情况:
- 海水淡化和预处理对水安全至关重要.
- 传统方法面临的挑战是效率和污染.
- 混合工艺为提高性能提供了潜力.
研究的目的:
- 通过电凝 (EC) 与超过 (UF) 和纳米过 (NF) 结合来加强海水预处理和海水淡化.
- 为了优化EC参数和评估不同的膜过后处理步骤.
- 评估有机物,离子的去除效率,以及对膜性能的影响.
主要方法:
- 优化电凝 (EC) 使用 (Al) 和铁 (Fe) 电极.
- 使用超过 (UF) 和纳米过 (NF) 膜进行研究后处理 (ES10B,UTC60,200).
- 基于去除速度,流量下降和膜污染的评估性能.
主要成果:
- 这种EC ((Al) /NF ((UTC60)) 组合实现了高的去除率:98%的COD,95%的TOC,68%的光,75%的OD600nm,70%的度和64%的导电性.
- 达到了高达55%的主要离子去除,减少了盐度和硬度.
- EC(Al) /NF(UTC60) 显示了最小的流量下降 (J/Jo = 0.9) 和高的污染可逆性 (93%的恢复因子).
结论:
- 混合EC/NF工艺在海水预处理和海水淡化方面非常有效.
- 该EC ((Al) /NF ((UTC60) 系统在污染物清除和膜寿命方面表现出卓越的性能.
- 优化的混合系统为盐水处理提供了有希望的解决方案,减少了污染和增强了回收.
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