Effects of organic acids on the adsorption of heavy metal ions by chitosan flakes

被引：29

作者：

Bassi, R

Prasher, SO

Simpson, BK

机构：

[1] McGill Univ, Dept Agr & Biosyst Engn, Ste Anne De Bellevue, PQ H9X 3V9, Canada

[2] McGill Univ, Dept Food Sci & Agr Chem, Ste Anne De Bellevue, PQ H9X 3V9, Canada

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 1999年 / 34卷 / 02期

关键词：

heavy metal ions; chitosan; adsorption; organic acids; citric; oxalic;

D O I：

10.1080/10934529909376836

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of two different organic acids, citric and oxalic, on the capacity of chitosan flakes to remove heavy metal ions, namely Zn2+, Cu2+, Cd2+, and Pb2+ from aqueous solutions were studied. A significant reduction in chitosan's adsorption capacity for heavy metal ions was observed in response to both organic acids, particularly when used at concentrations higher than 10(-2)M. The magnitude of reduction in response to citric acid was slightly greater as compared to oxalic acid.

引用

页码：289 / 294

页数：6

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