Intensifying electrified flow-through water treatment technologies via local environment modification  

作　　者：Zheng-Yang Huo Xiaoxiong Wang Xia Huang Menachem Elimelech 

机构地区：[1]School of Environment and Natural Resources,Institute of Ecological Civilization,Renmin University of China,Beijing 100872,China [2]Institute for Ocean Engineering,Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China [3]Center of Double Helix,Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China [4]State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing 100084,China [5]Department of Chemical and Environmental Engineering,Yale University,New Haven,CT 06520-8286,USA

出　　处：《Frontiers of Environmental Science & Engineering》2024年第6期17-25,共9页环境科学与工程前沿（英文）

摘　　要：Removing high-risk and persistent contaminants from water is challenging,because they typically exist at low concentrations in complex water matrices.Electrified flow-through technologies are viable to overcome the limitations induced by mass transport for efficient contaminant removal.Modifying the local environment of the flow-through electrodes offers opportunities to further improve the reaction kinetics and selectivity for achieving near-complete removal of these contaminants from water.Here,we present state-of-the-art local environment modification approaches that can be incorporated into electrified flow-through technologies to intensify water treatment.We first show methods of nanospace incorporation,local geometry adjustment,and microporous structure optimization that can induce spatial confinement,enhanced local electric field,and microperiodic vortex,respectively,for local environment modification.We then discuss why local environment modification can complement the flow-through electrodes for improving the reaction rate and selectivity.Finally,we outline appropriate scenarios of intensifying electrified flow-through technologies through local environment modification for fit-for-purpose water treatment applications.

关 键 词：Point-of-use water treatment Electrified membrane Advection-enhanced mass transport Water decontamination and disinfection Emerging contaminants 

分 类 号：X703[环境科学与工程—环境工程]