REMOVAL OF LEAD(II) BY ADSORPTION ONTO WASTE IRON(III) CHROMIUM(III) HYDROXIDE FROM AQUEOUS-SOLUTION AND RADIATOR MANUFACTURING-INDUSTRY WASTE-WATER

被引：40
|
作者：
NAMASIVAYAM, C
RANGANATHAN, K
机构：
[1] Environmental Chemistry Division, Department of Environmental Sciences, Bharathiyar University, Coimbatore-641 046, Tamil Nadu
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1995年 / 34卷 / 03期
关键词：
D O I：
10.1021/ie00042a019
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
''Waste'' iron(III)/chromium(III) hydroxide has been used as an adsorbent for the effective removal of Pb(II) from aqueous solution. The parameters-studied include agitation time,; Pb(II) concentration, temperature, and pH. The percent adsorption of Pb(II) increased with a decrease in concentration of Pb(II) and an increase in temperature and pH. Quantitative removal of Pb(II) was observed at pH > 7.0. The equilibrium data fit well with the Langmuir isotherm. The adsorption capacity (Q(0)) calculated from Langmuir isotherm was 126.55 mg/g at an initial pH of 3.5 at 30 degrees C. Desorption of Pb(II) from Pb loaded adsorbent was 56% at pH 4.0. Application of the adsorbent was successfully demonstrated using the radiator manufacturing industry wastewater.
引用
收藏
页码：869 / 873
页数：5
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