ABSTRACT

Increasing exposure to Arsenic pollution is one of the biggest concerns regarding public health, water quality and ecosystem conservation. Arsenic pollution, in particular, has recently attracted attention, due to the contamination of drinking water. In recent years, Chitosan-based adsorbents have been used in the treatment of contaminated water. However, there are some disadvantages that resist the practical applications of chitosan, such as low solubility in acidic media, mechanical strength, selectivity and adsorption capacity. Thus functional modifications on chitosan are carried out to improve its properties. This review provides information on As contamination in complex environmental settings. It mainly describes the applications of the radiation-induced grafted biopolymer in the removal of arsenic from contaminated water. It also highlights the adsorbent’s regeneration, disposal methods and its cost evaluation.

摘要

越来越多的砷污染暴露是公众健康、水质和生态系统保护的最大问题之一。尤其是砷污染，由于饮用水的污染，最近引起了人们的关注。近年来，壳聚糖基吸附剂已被用于污水处理。然而，壳聚糖的实际应用存在一些缺点，例如在酸性介质中的溶解度低、机械强度、选择性和吸附能力等。因此对壳聚糖进行功能修饰以改善其性能。本综述提供了有关复杂环境环境中砷污染的信息。主要介绍了辐射诱导接枝生物聚合物在去除污染水中砷方面的应用。