改性吸附材料处理水体中砷的研究进展

Research Progress in the Treatment of Arsenic in Water by Modified Adsorbent

对炭系、铁系和无机类等4类改性吸附材料除砷方法的研究进展进行了归纳总结。其中,碳系材料性质稳定,由于材料表面性质使得对砷吸附效果不佳;铁系材料对砷有较好亲和力,但由于颗粒小易团聚使得实际应用受限;无机类材料物理性质稳定,但砷吸附容量较小;废弃物类自身材料特性处理适用条件较广泛,但材料存在一些杂质或浸出液毒性。针对不同材料特点介绍材料吸附砷特性及根据材料性能的改性思路,总结材料除砷性能和特点。

In this paper,the research progress of arsenic removal methods for four kinds of modified adsorption materials,including carbon,iron and inorganic,is summarized.Among them,the carbon-based materials are stable in properties,the adsorption effect on arsenic is poor due to the surface properties of the materials,the iron-based materials have good affinity for arsenic,but the practical application is limited due to small particles and easy agglomeration,the inorganic materials are stable in physical properties,but the arsenic adsorption capacity is small,and the waste materials have a wide range of applicable conditions for material property treatment,but the materials have some impurities or leachate toxicity.According to the characteristics of different materials,the arsenic adsorption characteristics of the materials and the modification ideas according to the properties of the materials are introduced,and the arsenic removal performance and characteristics of the materials are summarized.