金属基吸附剂除砷技术研究进展  

Progress in Research on Arsenic Removal Technology with Metal-based Adsorbents

作　　者：唐朝春[1] 朱蓓 许荣明[1] 黄从新 王顺藤 TANG Chaochun;ZHU Bei;XU Rongming;HUANG Congxin;WANG Shunteng(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013

出　　处：《环境科学与技术》2020年第10期221-228,共8页Environmental Science & Technology

基　　金：江西省自然科学基金项目(20132BAB203033)。

摘　　要：砷污染问题由于砷的高毒性、不可降解性的特点,一直是世界普遍面临的饮用水处理难题之一,并且受到广泛关注。吸附技术由于其低能耗、无污染、操作简便而被广泛应用于水中砷的去除,如何开发出高效、易回收的砷吸附剂是吸附除砷技术的主要研究内容。该文围绕吸附剂特性、除砷性能及吸附机制,综述了近年来的研究热点金属基吸附剂除砷研究进展,并展望了金属基吸附剂除砷技术未来的研究方向,认为金属基吸附剂结构优化、限域纳米吸附剂的制备以及吸附剂孔道大小的定向调控是未来的研究热点。Arsenic contamination has been a tough problem for long in drinking water treatment due to the severe toxicity and refractory degradation of arsenic.On the other hand,adsorption technology is widely used in the removal of arsenic from water due to its features of low energy consumption,no pollution and being easy to operation,and meantime developing arsenic adsorbents with more efficient and easy-to-regenerate features is the main research hotspot topic in this field for recent years.This article summarizes the progress in the research of the metal-based arsenic removal adsorbents with respect to the characteristics of adsorbents,arsenic removal performance and adsorption mechanism;in addition,futrue perspective of the metal-based arsenic removal adsorbents technology is prospected.It is considered that the optimization of the structure of metal-based adsorbents,the preparation of confined nano-adsorbents,and the directional tune of adsorbent pore size would be the future research hotspots.

关 键 词：除砷 吸附 金属氧化物 层状双金属氢氧化物 金属有机框架 

分 类 号：X503[环境科学与工程—环境工程]