Adsorption studies on rice husk: removal and recovery of Cd(II) from wastewater

被引:347
作者
Ajmal, M [1 ]
Rao, RAK [1 ]
Anwar, S [1 ]
Ahmad, J [1 ]
Ahmad, R [1 ]
机构
[1] Aligarh Muslim Univ, Fac Engn & Technol, Dept Appl Chem, Environm Res Lab, Aligarh 202002, Uttar Pradesh, India
关键词
phosphate treated rice husk; Langmuir isotherm; adsorption dynamics;
D O I
10.1016/S0960-8524(02)00159-1
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Adsorption behaviour of Ni(II), Zn(II), Cd(II) and Cr(VI) on untreated and phosphate-treated rice husk (PRH) showed that adsorption of Ni(II) and Cd(II) was greater when PRH was used as an adsorbent. Sorption of Cd(II) was dependent on contact time, concentration, temperature, adsorbent doses and pH of the solution. The Langmuir constants and thermodynamic parameters have been calculated at different temperatures. It was found that recovery of Cd(II) from synthetic wastewater by column operation was better than a batch process. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:147 / 149
页数:3
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