Development of a method employing chitosan to remove metallic ions from wastewater.

被引：23

作者：

Janegitz, Bruno Campos ^{[1
]}

Lourencao, Bruna Claudia ^{[1
]}

Lupetti, Karina Omuro ^{[1
]}

Fatibello-Filho, Orlando ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Quim, CP 676, BR-13560970 Sao Carlos, SP, Brazil

来源：

QUIMICA NOVA | 2007年 / 30卷 / 04期

关键词：

chitosan; metallic ions; adsorption;

D O I：

10.1590/S0100-40422007000400022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work a method was developed for removing metallic ions from wastewaters by co-precipitation of Cu2+, Pb2+, Cd2+, Cr3+ and Hg2+ with chitosan and sodium hydroxide solution. Solutions of these metallic ions in the range from 0.55 to 2160 mg L-1 were added to chitosan dissolved in 0.05 mol L-1 HCl. For the co-precipitation of metal-chitosan-hydroxide a 0.17 mol L-1 NaOH solution was added until pH 8.5-9.5. A parallel study was carried out applying a 0.17 mol L-1 NaOH solution to precipitate those metallic ions. Also, a chitosan solid phase column was used for removing those metallic ions from wastewaters.

引用

页码：879 / 884

页数：6

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