Emerging Ion Exchange Membrane Process-Based Zero Liquid Discharge Technology for Saline Wastewater
Qingbai Chen , Yu Liu , Jinli Zhao , Pengfei Li , Jianyou Wang
Progress in Chemistry ›› 2019, Vol. 31 ›› Issue (12) : 1669 -1680.
As a continuous ion exchange process, ion exchange membrane(IEM) process has many advantages in terms of green, sustainability, cost and pollution free. The latest applications and current progress of emerging ion exchange membrane process-based zero liquid discharge(ZLD) technology for saline wastewater, such as selectrodialysis, electrodialysis metathesis and reverse electrodialysis, are summarized from the view of some elementary factors(configurations, working mechanism, etc.), by considering the key issues of ZLD process, i.e., huge energy waste, easy scaling and difficult salts separating. The integrations with other separation technologies are introduced and summarized specifically. The review has made a generalization and summarization of the previous works in order to provide some reference for the future works in ZLD progress.
emerging ion exchange membrane process / saline wastewater / zero liquid discharge
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