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http://dx.doi.org/10.11001/jksww.2019.33.6.437

Comparison and application method of seawater desalination pre-treatment process  

Lim, Hwankyu (Civil Engineering Department, Kyungnam University)
Kim, Seunghyun (Civil Engineering Department, Kyungnam University)
Publication Information
Journal of Korean Society of Water and Wastewater / v.33, no.6, 2019 , pp. 437-446 More about this Journal
Abstract
Reverse osmosis seawater desalination facilities can extend the cleaning cycle and replacement time of the reverse osmosis membrane by pretreatment process. Selection of pretreatment process depends on water quality. It was attempted in this study to select approriate pretreatment process for the Masan bay, which was high in particles and organic content. For this purpose, performances of pretreatment processes such as filter adsorber (FA), pore controllable fiber (PCF), and ultrafiltration (UF) were compared based on the silt density index (SDI). The SDI value of the filtrate should be less than 3. The study results showed that UF can produce the filtrate quality satisfying the requirement. However, the transmembrane pressure (TMP) of UF increased quickly, reaching 0.6 bar within 4 days. In order to secure stable operation, FA and PCF were combined with UF. The study results showed that combination of PCF and UF was able to extend the filtration duration (more than 2 months) until to reach TMP of 0.6 bar.
Keywords
SDI; Pre-treatment; Filter absorber; Pore controllable fiber; Ultrafiltration;
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Times Cited By KSCI : 2  (Citation Analysis)
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