ELIMINATION OF Cr(VI) USING ACTIVATED CARBON PREPARED FROM MUSHROOM MEDIUM

被引：0

作者：

Xu, Lan-Shu ^{[1
]}

Fan, Fu-Li ^{[1
]}

Cai, Xiao-Xu ^{[1
]}

Jin, Xiao-Juan ^{[1
]}

机构：

[1] Beijing Forestry Univ, MOE Key Lab Wooden Mat Sci & Applicat, Beijing Key Lab Lignocellulos Chem, MOE Engn Res Ctr Forestry Biomass Mat & Bioenergy, 35 Qinghua East Rd, Beijing 100083, Peoples R China

来源：

CELLULOSE CHEMISTRY AND TECHNOLOGY | 2017年 / 51卷 / 1-2期

关键词：

activated carbon; mushroom medium; adsorption; Cr(VI); CROSS-LINKED CHITOSAN; AQUEOUS-SOLUTION; ADSORPTION; REMOVAL; CHROMIUM; BIOSORBENTS; ADSORBENTS; SORPTION; WATER; ACID;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Mushroom medium, which is mainly composed of wood flour, is a kind of waste largely obtained from the mushroom cultivation industry. The typical method of reusing it is by burning it to generate heat. In the present paper, mushroom medium-based activated carbon was prepared and the removal for Cr(VI) through it was explored. The combined effect of five process parameters, i.e. contact time, pH, adsorbent dosage, initial concentration and temperature, on Cr(VI) adsorption were studied. The maximum adsorption capacity of activated carbon towards Cr(VI) was found under the following conditions: pH 2, contact time of 3 h, temperature of 60 degrees C and adsorbent dosage of 0.1 g. The adsorbed amount of Cr(VI) decreased with an increase in the initial concentration. In addition, the kinetics of Cr(VI) adsorption followed the pseudo-second-order rate expression. As regards the adsorption isotherms, the data were fitted better by the Langmuir model than by the Freundlich model.

引用

页码：159 / 165

页数：7

共 29 条

[1] Transport of chromium(VI) through a Cyanex 921-supported liquid membrane from HCl solutions [J].