REMOVAL OF ZN(II) FROM AQUEOUS SOLUTION BY USING SMECTITE-BEARING SOIL

被引：0

作者：

Asci, Yeliz ^{[1
]}

机构：

[1] Eskisehir Osmangazi Univ, Dept Chem Engn, Eskisehir, Turkey

来源：

SGEM 2008: 8TH INTERNATIONAL SCIENTIFIC CONFERENCE, VOL II, CONFERENCE PROCEEDINGS | 2008年

关键词：

Adsorption; Zn(II); smectite-bearing soil;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, removal zinc from aqueous solution was studied using smectite-bearing soil. The effects of initial Zn(II) concentration, pH, adsorbent dosage, and contact time were investigated. When the initial concentration of Zn(II) was increased from 0.7 to 3.77 mM, the Zn(II) removal efficiency decreased from 100% to 90.7%. To determine the effect of pH on the adsorption efficiency of Zn(I I), pH was varied between 3.0 and 7.0. The sorption efficiency of Zn(II) onto soil seems to be independent of pH with in studied pH range and initial Zn(II) concentration. When soil was treated with 1.23 mM Zn(II) solution, the sorption efficiency was determined as 96% at all pH values tested. As the dosage of soil was increased from 0.3 g to 1.5g, the Zn(II) removal efficiency was almost constant at higher dosages than 0.5 g. Finally, the ability of soil to remove Zn(II) from aqueous solutions has been investigated in batch reactor with a maximum contact time of 180 min.

引用

页码：407 / 411

页数：5

共 8 条

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