DOI: 10.1016/j.watres.2017.11.027
Scopus记录号: 2-s2.0-85034640104
论文题名: Intrinsic tradeoff between kinetic and energetic efficiencies in membrane capacitive deionization
作者: Wang L. ; Lin S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 394
结束页码: 401
语种: 英语
英文关键词: Capacitive deionization
; Energy consumption
; Kinetic efficiency
; Performance evaluation
; System optimization
; Tradeoff
Scopus关键词: Effluents
; Electrodes
; Energy utilization
; Mass transfer
; Capacitive deionization
; Design and operations
; Membrane capacitive deionization
; Performance evaluations
; Specific energy consumption
; System configurations
; System optimizations
; Tradeoff
; Kinetics
; water
; salt water
; sodium chloride
; adsorption
; electrode
; energy efficiency
; mass transfer
; membrane
; optimization
; performance assessment
; reaction kinetics
; trade-off
; adsorption
; Article
; capacitive deionization
; chemical modification
; current density
; energy consumption
; energy transfer
; kinetics
; priority journal
; quantitative analysis
; salinity
; theoretical model
; artificial membrane
; chemistry
; devices
; electrode
; procedures
; theoretical model
; water management
; Adsorption
; Electrodes
; Kinetics
; Membranes, Artificial
; Models, Theoretical
; Saline Waters
; Salinity
; Sodium Chloride
; Water Purification
英文摘要: Significant progress has been made over recent years in capacitive deionization (CDI) to develop novel system configurations, predictive theoretical models, and high-performance electrode materials. To bring CDI to large scale practical applications, it is important to quantitatively understand the intrinsic tradeoff between kinetic and energetic efficiencies, or the relationship between energy consumption and the mass transfer rate. In this study, we employed both experimental and modeling approaches to systematically investigate the tradeoff between kinetic and energetic efficiencies in membrane CDI (MCDI). Specifically, we assessed the relationship between the average salt adsorption rate and specific energy consumptions from MCDI experiments with different applied current densities but a constant effluent salinity. We investigated the impacts of feed salinity, diluted water salinity, diluted water volume per charging cycle, and electrode materials on the kinetics-energetics tradeoff. We also demonstrate how this tradeoff can be employed to optimize the design and operation of CDI systems and compare the performance of different electrode materials and CDI systems. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113114
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235-1831, United States; Department of Chemical and Bimolecular Engineering, Vanderbilt University, Nashville, TN 37235-1831, United States
Recommended Citation:
Wang L.,Lin S.. Intrinsic tradeoff between kinetic and energetic efficiencies in membrane capacitive deionization[J]. Water Research,2018-01-01,129