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Electrothermal hollow fiber membrane for convenient heat management in Joule vacuum membrane distillation
Li, Kuiling; Liu, Hongxin; Zhang, Yong; Hou, Deyin; Zhang, Yu; Wang, Jun
2022-09-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume443Issue:0Pages:136521
AbstractMembrane distillation (MD) for brackish groundwater desalination is a promising approach for alleviating water shortage in rural area. Conventional MD has very low single-pass water recovery leading to high energy consumption for hydraulic circulation. Heating the feed via electrothermal membrane at the interface diminishes the energy consumption for circulation, but the heat loss to the bulk feed and ambient environment critically needs to be managed to achieve higher Joule heat efficiency. An electrothermal hollow fiber membrane was prepared and employed in Joule vacuum membrane distillation (VMD). The narrow inner space of the luminal side of the membrane controlled the amount of feed and limited the heat loss to the bulk feed. The highest Joule heat efficiency of 78.0% was achieved when 0.27 W/cm2 of power was applied. In long-term operation for brackish groundwater desalination, the fluoride was effectively rejected and the single-pass water recovery of ~70% was achieved, which could critically decrease the energy consumption for circulation. The electrothermal hollow fiber membrane is convenient to conduct heat management in Joule VMD process.
Department中国科学院饮用水科学与技术重点实验室; 环境水质学国家重点实验室 ; 中国科学院饮用水科学与技术重点实验室; 环境水质学国家重点实验室
KeywordENERGY-CONSUMPTION FLUORIDE REMOVAL DESALINATION WATER GROUNDWATER PERFORMANCE RECOVERY PROVINCE IMPACT
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47844
Collection中国科学院饮用水科学与技术重点实验室
Corresponding AuthorWang, Jun
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, 18 Shuangqing Rd, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, 18 Shuangqing Rd, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Kuiling,Liu, Hongxin,Zhang, Yong,et al. Electrothermal hollow fiber membrane for convenient heat management in Joule vacuum membrane distillation[J]. CHEMICAL ENGINEERING JOURNAL,2022,443(0):136521.
APA Li, Kuiling,Liu, Hongxin,Zhang, Yong,Hou, Deyin,Zhang, Yu,&Wang, Jun.(2022).Electrothermal hollow fiber membrane for convenient heat management in Joule vacuum membrane distillation.CHEMICAL ENGINEERING JOURNAL,443(0),136521.
MLA Li, Kuiling,et al."Electrothermal hollow fiber membrane for convenient heat management in Joule vacuum membrane distillation".CHEMICAL ENGINEERING JOURNAL 443.0(2022):136521.
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