Kinetics of color removal by adsorption from water using activated clay

被引：59

作者：

Wu, FC ^{[1
]}

Tseng, RL

Juang, RS

机构：

[1] Yuan Ze Univ, Dept Chem Engn, Chungli 320, Taiwan

[2] Lien Ho Inst Technol, Dept Chem Engn, Miao Li 360, Taiwan

[3] Lien Ho Inst Technol, Dept Safety Hlth & Environm Engn, Miao Li 360, Taiwan

来源：

ENVIRONMENTAL TECHNOLOGY | 2001年 / 22卷 / 06期

关键词：

kinetics and mechanism; color removal; adsorption; activated clay;

D O I：

10.1080/09593332208618235

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Kinetics and mechanism of adsorption of one commercial basic dye (BB69) and one direct dye (DR227) from aqueous solutions using clay were studied in the temperature range 15 similar to 75 degreesC. The clay was activated by treatment with sulfuric acid. Two simplified kinetic models, pseudo first- and second-order equations, were tested. it was shown that the adsorption of both dyes could be well described by the pseudo second-order equation Rate constants of the best-fit model were calculated, and the related apparent activation energies wee also evaluated and discussed.

引用

页码：721 / 729

页数：9

共 30 条

[1] A review of potentially low-cost sorbents for heavy metals [J].