Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater
An integrated RO and RED hybrid process using lava seawater was evaluated in a pilot plant, confirming its effectiveness in reducing energy consumption and improving water quality. Two RO membrane modules were tested, LG SW 400 R and Vontron SW8040XLE-400, under varying operating pressures using bot...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398625002000 |
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| author | Jonghun Lee Kwang-Duck Park Hojung Rho Yun Chul Woo Joowan Lim June-Seok Choi |
| author_facet | Jonghun Lee Kwang-Duck Park Hojung Rho Yun Chul Woo Joowan Lim June-Seok Choi |
| author_sort | Jonghun Lee |
| collection | DOAJ |
| description | An integrated RO and RED hybrid process using lava seawater was evaluated in a pilot plant, confirming its effectiveness in reducing energy consumption and improving water quality. Two RO membrane modules were tested, LG SW 400 R and Vontron SW8040XLE-400, under varying operating pressures using both lava seawater and RED-treated water as feed. Lava seawater, naturally filtered through volcanic bedrock, exhibited lower salinity and a stable temperature, which contributed to reduced osmotic pressure compared to conventional seawater. Experimental results demonstrated that the RO process with lava seawater achieved comparable recovery and stable production TDS at relatively lower operating pressures and energy consumption than those of commercial RO processes. The hybrid RO process attained a flux recovery rate of approximately 40 %, with SEC values ranging from 2.412 to 3.062 kWh/m3, representing significant energy savings over stand-alone RO processes. Performance comparisons revealed that the LG SW 400 R module provided superior water quality with lower permeate conductivity, while the Vontron SW8040XLE-400 module delivered better energy efficiency. These findings indicate that the RO hybrid process not only reduces overall energy consumption but also improves operational stability and product water quality. |
| format | Article |
| id | doaj-art-4b390a8befdf4a4bbbba331404c51b0b |
| institution | OA Journals |
| issn | 1944-3986 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-4b390a8befdf4a4bbbba331404c51b0b2025-08-20T02:03:25ZengElsevierDesalination and Water Treatment1944-39862025-04-0132210118410.1016/j.dwt.2025.101184Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawaterJonghun Lee0Kwang-Duck Park1Hojung Rho2Yun Chul Woo3Joowan Lim4June-Seok Choi5Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of KoreaDepartment of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of KoreaDepartment of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Republic of KoreaDepartment of Environmental Engineering & Energy, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin-si, Gyeonggi-do 17058, South KoreaDepartment of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of KoreaDepartment of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Republic of Korea; Corresponding author at: Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Gorang-Daero 283, Ilsanseo-Gu, Goyang, Gyeonggi 10223, Republic of Korea.An integrated RO and RED hybrid process using lava seawater was evaluated in a pilot plant, confirming its effectiveness in reducing energy consumption and improving water quality. Two RO membrane modules were tested, LG SW 400 R and Vontron SW8040XLE-400, under varying operating pressures using both lava seawater and RED-treated water as feed. Lava seawater, naturally filtered through volcanic bedrock, exhibited lower salinity and a stable temperature, which contributed to reduced osmotic pressure compared to conventional seawater. Experimental results demonstrated that the RO process with lava seawater achieved comparable recovery and stable production TDS at relatively lower operating pressures and energy consumption than those of commercial RO processes. The hybrid RO process attained a flux recovery rate of approximately 40 %, with SEC values ranging from 2.412 to 3.062 kWh/m3, representing significant energy savings over stand-alone RO processes. Performance comparisons revealed that the LG SW 400 R module provided superior water quality with lower permeate conductivity, while the Vontron SW8040XLE-400 module delivered better energy efficiency. These findings indicate that the RO hybrid process not only reduces overall energy consumption but also improves operational stability and product water quality.http://www.sciencedirect.com/science/article/pii/S1944398625002000DesalinationReverse osmosisReverse electrodialysisLava seawaterEnergy consumption |
| spellingShingle | Jonghun Lee Kwang-Duck Park Hojung Rho Yun Chul Woo Joowan Lim June-Seok Choi Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater Desalination and Water Treatment Desalination Reverse osmosis Reverse electrodialysis Lava seawater Energy consumption |
| title | Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater |
| title_full | Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater |
| title_fullStr | Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater |
| title_full_unstemmed | Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater |
| title_short | Evaluation of operational performance in an integrated RO and RED hybrid desalination process using lava seawater |
| title_sort | evaluation of operational performance in an integrated ro and red hybrid desalination process using lava seawater |
| topic | Desalination Reverse osmosis Reverse electrodialysis Lava seawater Energy consumption |
| url | http://www.sciencedirect.com/science/article/pii/S1944398625002000 |
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