An investigation of phosphate ion adsorption from aqueous solution by fly ash and slag

被引：124

作者：

Agyei, NM

Strydom, CA

Potgieter, JH

机构：

[1] Univ Venda, Dept Chem, ZA-0950 Thohoyandou, South Africa

[2] Univ Pretoria, Dept Chem, ZA-0002 Pretoria, South Africa

[3] Pretoria Technikon, Dept Chem & Phys, ZA-0007 Pretoria, South Africa

来源：

CEMENT AND CONCRETE RESEARCH | 2000年 / 30卷 / 05期

关键词：

fly ash; slag; adsorption; Frumkin isotherm;

D O I：

10.1016/S0008-8846(00)00225-8

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The removal of phosphate ions from aqueous solution by fly ash and slag has been investigated. The chemical composition of each adsorbent has been determined by XRF and XRD, as well as some important physical characteristics such as BET surface area and mean particle size. The effect of contact time on the rate of PO43- removal has been studied, and slag was found to remove the solute faster than fly ash. The Frumkin isotherm was found to be the most appropriate equation for constructing adsorption isotherms from the experimental adsorption data. The values of the isotherm constants have been obtained. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：823 / 826

页数：4

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