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Purification of High Salinity Brine by Multi-Stage Ion Concentration Polarization Desalination

Title
Purification of High Salinity Brine by Multi-Stage Ion Concentration Polarization Desalination
Author
곽노균
Keywords
ANION-EXCHANGE MEMBRANE; ELECTRODIALYSIS REVERSAL; DIVALENT IONS; SHOCK ELECTRODIALYSIS; SEAWATER DESALINATION; WATER; MONOVALENT; SEPARATION; REMOVAL; PLANT
Issue Date
2016-08
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v. 6, page. 1-12
Abstract
There is an increasing need for the desalination of high concentration brine (>TDS 35,000 ppm) efficiently and economically, either for the treatment of produced water from shale gas/oil development, or minimizing the environmental impact of brine from existing desalination plants. Yet, reverse osmosis (RO), which is the most widely used for desalination currently, is not practical for brine desalination. This paper demonstrates technical and economic feasibility of ICP (Ion Concentration Polarization) electrical desalination for the high saline water treatment, by adopting multi-stage operation with better energy efficiency. Optimized multi-staging configurations, dependent on the brine salinity values, can be designed based on experimental and numerical analysis. Such an optimization aims at achieving not just the energy efficiency but also (membrane) area efficiency, lowering the true cost of brine treatment. ICP electrical desalination is shown here to treat brine salinity up to 100,000 ppm of Total Dissolved Solids (TDS) with flexible salt rejection rate up to 70% which is promising in a various application treating brine waste. We also demonstrate that ICP desalination has advantage of removing both salts and diverse suspended solids simultaneously, and less susceptibility to membrane fouling/scaling, which is a significant challenge in the membrane processes.
URI
https://www.nature.com/articles/srep31850https://repository.hanyang.ac.kr/handle/20.500.11754/76110
ISSN
2045-2322
DOI
10.1038/srep31850
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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