DOI: 10.1016/j.watres.2018.10.054
Scopus记录号: 2-s2.0-85055688618
论文题名: Assessing the behavior of the feed-water constituents of a pilot-scale 1000-cell-pair reverse electrodialysis with seawater and municipal wastewater effluent
作者: Nam J.-Y. ; Hwang K.-S. ; Kim H.-C. ; Jeong H. ; Kim H. ; Jwa E. ; Yang S. ; Choi J. ; Kim C.-S. ; Han J.-H. ; Jeong N.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 148 起始页码: 261
结束页码: 271
语种: 英语
英文关键词: Power generation
; Reverse electrodialysis
; Salinity gradient
; Seawater
; Wastewater effluent
Scopus关键词: Cathodes
; Dissociation
; Electrodialysis
; Ion exchange
; Ion exchange membranes
; Pilot plants
; Power generation
; Renewable energy resources
; Seawater
; Hydrophobic properties
; Low molecular weight
; Municipal wastewaters
; Renewable energy source
; Reverse electrodialysis
; Salinity gradients
; Specific uv absorbance
; Wastewater effluents
; Effluents
; calcium ion
; magnesium ion
; sea water
; effluent
; electrochemical method
; electrode
; hydrophobicity
; power generation
; salinity
; seawater
; wastewater
; water treatment
; Article
; dissociation
; effluent
; electrodialysis
; hydrophobicity
; ion exchange
; ion transport
; membrane
; molecular weight
; pressure
; priority journal
; renewable energy
; ultraviolet radiation
; waste water recycling
英文摘要: Reverse electrodialysis (RED) has vast potential as a clean, nonpolluting, and sustainable renewable energy source; however, pilot-scale RED studies employing real waters remain rare. This study reports the largest RED (1000 cell pairs, 250 m 2 ) with municipal wastewater effluent (1.3–5.7 mS/cm) and seawater (52.9–53.8 mS/cm) as feed solutions. The RED stack was operated at a velocity of 1.5 cm/s and the pilot plant produced 95.8 W of power (0.38 W/m 2 total membrane or 0.76 W/m 2 cell pair ). During operation of the RED, the inlet design of the stack, comprising thin spacers, and the water dissociation reaction at the cathode were revealed as vulnerabilities of the stack. Specifically, pressure drops at the fluid inlet parts had the most detrimental effects on power output due to clogged spacers around the inlet parts. In addition, precipitates resulting in inorganic fouling were inevitable during the water dissociation reaction due to significant potential generated by the stack in the cathode chamber. Na + and Cl − accounted for the majority of ions transferred from seawater to wastewater effluent through ion exchange membranes (IEMs). Moreover, some divalent cations in seawater, Mg 2+ and Ca 2+ , were also transferred to the wastewater effluent. Some organics with relatively low molecular weights in the wastewater effluent passed through the IEMs, and their hydrophobic properties elevated the specific UV absorbance (SUVA) level in the seawater. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122210
Appears in Collections: 气候变化事实与影响
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作者单位: Jeju Global Research Center, Korea Institute of Energy Research, 200 Haemajihaean-ro, Gujwa-eupJeju 63359, South Korea; Water Resources Research Institute, Sejong University, 209 Neungdong-ro, Seoul, Gwangjin-gu 05006, South Korea
Recommended Citation:
Nam J.-Y.,Hwang K.-S.,Kim H.-C.,et al. Assessing the behavior of the feed-water constituents of a pilot-scale 1000-cell-pair reverse electrodialysis with seawater and municipal wastewater effluent[J]. Water Research,2019-01-01,148