The removal of dye colours from aqueous solutions by adsorption on low-cost materials

被引：351

作者：

McKay, G ^{[1
]}

Porter, JF ^{[1
]}

Prasad, GR ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong

来源：

WATER AIR AND SOIL POLLUTION | 1999年 / 114卷 / 3-4期

关键词：

dye sorption; equilibrium isotherms; fixed bed; low-cost sorbents;

D O I：

10.1023/A:1005197308228

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 five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g(-1) adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g(-1) adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.

引用

页码：423 / 438

页数：16

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