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电导膜蒸通过交替电流操作以实现零液体排放

Junghyun Kim¹, Leonard Tijing², Ho Kyong Shon²

¹Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), 15 Broadway, NSW 2007, Australia; Department of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.

|August 27, 2023

概括

电导膜蒸 (ECMD) 的交流电流 (AC) 操作可提高27%的水回收率. 这一进步提高了膜蒸 (MD) 的实用性,用于高盐度处理和零液体排放 (ZLD).

科学领域:

水处理技术水处理技术.
膜分离过程中的隔离过程.
电化学电化学电化学

背景情况:

膜蒸 (MD) 为海水淡化和零液体排放 (ZLD) 提供了低能耗和高水质.
由于污染和缩而导致的性能降低限制了MD的有效性,特别是在高回收条件下.
控制阳离子和阳离子对于有效减轻MD的缩放至关重要.

研究的目的:

引入和评估用于电导膜蒸 (ECMD) 的交流电流 (AC) 操作.
调查交流运行的潜力,以控制阳离子和阳离子,以减轻缩放.
提高MD过程中的水回收率,以改善海水淡化和ZLD应用.

主要方法:

在AC和直流 (DC) 操作下对ECMD进行系统的实验调查.
理论分析以了解离子控制和缩放缓解的机制.
对性能进行比较评估,重点是水回收和防腐/防.

主要成果:

与传统方法相比,ECMD中的AC运行显著增加了高达27%的水回收.
具有AC操作的ECMD显示了对阳离子和阳离子的增强控制,减少了缩放潜力.
该研究验证了AC操作在改善MD性能方面的有效性.

结论:

交替电流操作是电导膜蒸 (ECMD) 的一种新且有效的修改.
具有AC操作的ECMD大大提高了水回收,解决了高盐度处理的关键挑战.
这一进步增加了使用MD用于高回收淡化和实现零液体排放 (ZLD) 的可行性.

关键词:

交替电流操作交替电流操作电导膜 (ECM) 是一种电导膜.无机缩放缓解无机缩放缓解膜蒸 (MD) 是一种方法.零液体排放 (ZLD) 是指零液体排放.

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