REMOVAL OF RHODAMINE-B BY BIOGAS WASTE SLURRY FROM AQUEOUS-SOLUTION

被引：56

作者：

NAMASIVAYAM, C

YAMUNA, RT

机构：

[1] Environmental Chemistry Division, Department of Environmental Sciences, Bharathiar University

来源：

WATER AIR AND SOIL POLLUTION | 1992年 / 65卷 / 1-2期

关键词：

D O I：

10.1007/BF00482752

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The ability of biogas waste slurry to adsorb a basic dye (Rhodamine-B) has been investigated. The parameters include agitation time, initial dye concentration, pH and adsorbent dosage. The rate controlling step is mainly intraparticle diffusion. The adsorption rate constant was found to be 2.9 X 10(-2) min-1 at 20 mg L-1 initial dye concentration. The adsorption conforms with Freundlich isotherm. Removal of the dye was at least 90% in the entire pH range from 2.3 to 11.2. Desorption of the dye in 50% (v/v) acetic acid to the extent of 69.7% indicates that most of the dye is held by the adsorbent by chemisorption.

引用

页码：101 / 109

页数：9

共 15 条

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