Ammonium Removal from Aqueous Solution by Sintering Process Red Mud and the Acid-activated Sintering Process Red Mud

被引：0
|
作者：
Zhong, Xin [1 ]
Zhang, Huayong [1 ]
Zhang, Luyi [1 ]
Tian, Yonglan [1 ]
Xiong, Yuanwu [1 ]
机构：
[1] North China Elect Power Univ, Res Ctr Engn Ecol & Nonlinear Sci, Beijing 102206, Peoples R China
来源：
2015 4TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL PROTECTION (ICEEP 2015) | 2015年
关键词：
Adsorption; Acid-activated red mud; Ammonium; Red mud; Kinetic studies; Isotherms;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The adsorption behaviors of ammonium from aqueous solutions onto red mud were investigated in a batch system. The adsorption equilibriums reached after 20 min and 45 min for ASRM and SRM, respectively. The kinetic studies showed that the adsorption process of ammonium on sintering process red mud (SRM) and the acid-activated SRM can be better explained by pseudo-second-order model. Freundlich model gave a better fit (R-2>0.99) that predicted some heterogeneity in the surface or pores of adsorbents have significant effect in the adsorption processes.
引用
收藏
页码：2976 / 2979
页数：4
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