Adsorption Studies of Cr (VI) on Rice Husk Ash (Rha)

被引：0
|
作者：
Naeem, Sumra [1 ]
Zafar, Uzma [1 ]
Altaf, Arifa [1 ]
Inayat, Asma [1 ]
机构：
[1] Mat Sci Res Ctr, Lahore, Pakistan
来源：
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN | 2009年 / 31卷 / 03期
关键词：
CR(VI);
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In the present investigation, the adsorption of Cr (VI) was studied by making use Of batch-technique. Percentage adsorption was calculated for RHA-Chromium solution system as a function of i) contact time, ii) pH, iii) adsorbate concentration and iv) temperature. Adsorption is interpreted in terms of Freundlich and Langmuir equations. The value of Delta H-0 was found to be-16.4708 KJ/mole. The desorption studies especially with 0.1M CaCl2 and 10% HCl at given Chromium loadings on RHA give significant percent desorption of Cr (VI).
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收藏
页码：379 / 382
页数：4
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