Park, Sanghun Kim, Namhyeok Kim, Youngsik Son, Moon Cho, Kyung Hwa 2024-01-19T13:01:28Z 2024-01-19T13:01:28Z 2022-04-03 2022-01 0959-6526 https://pubs.kist.re.kr/handle/201004/115838 As it is typically disposed of to the ocean, naturally produced brine water has been an avoidable issue in seawater desalination technology, particularly in the reverse osmosis (RO) process. To address this issue, a seawater battery-desalination (SWB-D) system was used to reduce the concentration of RO brine while also storing electrical energy by harvesting sodium ions from the brine. The SWB equipped with an anion exchange membrane (AEM) can lower the RO brine concentration to seawater levels, but the use of AEM for brine treatment is costly and the slow kinetics of salt transport require long operation times. In this study, we present a proof of concept for using RO membrane as an alternative to AEM in the SWB desalination system. Owing to its low cost and unexpected support for salt removal via diffusion across the RO membrane, using RO membrane is a viable application. The effect of diffusion enables SWB-D with RO membrane to reduce the charging time by 36.8% (up to-40.5% salt removal) compared with SWB-D with AEM. In addition,-52.5 kWh m(-3) of energy (assuming 80% energy recovery) was saved while lowering the concentration of brine to seawater levels (from 1.2 to-0.6 M). English ELSEVIER SCI LTD Seawater battery desalination with a reverse osmosis membrane for simultaneous brine treatment and energy storage Article 10.1016/j.jclepro.2021.130188 1 JOURNAL OF CLEANER PRODUCTION, v.333 JOURNAL OF CLEANER PRODUCTION 333 N scie scopus 000770314800001 2-s2.0-85121672760 Green & Sustainable Science & Technology Engineering, Environmental Environmental Sciences Science & Technology - Other Topics Engineering Environmental Sciences & Ecology Article Seawater battery Desalination Reverse osmosis membrane Brine treatment