Abstract
Reverse osmosis (RO) process is the most popular seawater desalination technology to solve global water crisis. However, the effluent of concentrated brine from RO plant could induce severe damage to marine ecosystems, especially for closed continental areas. Electrodialysis (ED) as an excellent technology has been used to treat RO effluent. An electrodialyzer which consisted of five pieces of cation-exchange membranes (CEMs) and four pieces of anion-exchange membranes (AEMs) was used to treat concentrated brine of RO plant. The effect of operation parameters such as current density, operating mode, type of membranes and initial brine concentration was investigated to measure a Lab-scale device. The results indicate that water transportation phenomenon through ED process are mainly induced by electro-osmotic rather than osmotic water transfer due to concentration difference. The ED process of RO concentrated brine can produce both refresh water and highly concentrated brine (ca. 27.13% (m/v)) for producing coarse salt via further crystallization.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
