Application of Biopolymer-based Adsorbents in Removal of Heavy Metals

作者：Xiao Min; Hu Jiancan; Liu Wenli; Nie Fengming

来源：ADVANCES IN TEXTILE ENGINEERING AND MATERIALS IV, 373-377, 2014.

DOI：10.4028/www.scientific.net/AMR.1048.373

<jats:p>Heavy metal pollution has raised a lot of concerns because of its bioaccumulation and non-degradability. A variety of methods have been applied in removal of heavy metals. This paper focused on the method of biosorption using biopolymer-based adsorbents in removing heavy metals from waster water. Cellulose and chitin/chitosan are abundant in supply and contain reactive functional groups. Cellulose-based adsorbents prepared from direct chemical modification or graft copolymerization are proved to show chelating ability to bind heavy metals. Chitin-and chitosan-based adsorbents have improved mechanical strength and better resistance to chemical conditions after physical or chemical modification. The regeneration and reusability of biopolymer-based adsorbents were also discussed in this paper.</jats:p>

• 出版日期2014