土木与环境工程学报（中英文）2024，Vol.46Issue(6)：203-212,10.DOI:10.11835/j.issn.2096-6717.2023.049
电化学介导的氨氮回收:原理、现状与展望
Electrochemically mediated ammonium nitrogen recovery:Principle,progress,and perspective
摘要
Abstract
Under the background of promoting environmental function quality and carbon peak and carbon neutrality,the hidden problems of repeated consumption and low sustainability in artificial nitrogen fixation/nitrogen removal process come to prominence.Synthesizing the necessity and resource availability of ammonium-nitrogen in wastewater,research and development of ammonium-nitrogen resource recovery technology is receiving more and more attention in wastewater treatment.Among the existing techniques,electrochemical technology has become a hot research direction due to its advantages such as fast reaction,simple equipment,and convenient operation.In this paper,an overview of the research and development status of electrochemical-mediated ammonium recovery technology in recent years was reviewed.Focusing on the migration and conversion mechanism of different forms of ammonium-nitrogen in the electrochemical system,three main principles of recovery technology were introduced including electrochemical-driven migration and adsorption,cathode reaction-driven volatilization and anode reaction-driven precipitation.The enhancement effect of electrodes and membrane materials on the ammonium recovery performance was then highlighted and the energy efficiency of related processes including capacitive deionization and membrane-based processes(via cation-exchange membrane,gas-permeable membrane and bipolar membrane)was analyzed,leading to the conclusion that an integrated process toward ammonia recovery exhibits merits of low energy input and high removal/recovery efficiency.Finally,the inherent demand for technological innovation in a low-carbon background was discussed,the future efforts would hopefully be directed toward the development of high-performance system components,energy reduction,and functional expansion/smart operation to promote the high-quality and sustainable development of electrochemical-mediated ammonium recovery technology.关键词
电化学/氨氮回收/污水资源化/膜Key words
electrochemical/ammonia nitrogen recovery/wastewater utilization/membrane分类
资源环境引用本文复制引用
李依凡,张淏泉,周鹭,阳春,孔繁鑫,韩乐..电化学介导的氨氮回收:原理、现状与展望[J].土木与环境工程学报（中英文）,2024,46(6):203-212,10.基金项目
重庆市留学人员回国创业创新支持计划(CX2021121) （CX2021121）
国家重点研发计划(2022YFC3203402)Venture and Innovation Support Program for Chongqing Overseas Returnees(No.CX2021121) （2022YFC3203402）
National Key R&D Program(No.2022YFC3203402) （No.2022YFC3203402）
