Removal of chromium(III) from aqueous solutions by adsorption on bentonite from Gaomiaozi, China

被引：49
作者：
Chen, Yong-Gui [1 ,2 ,3 ]
He, Yong [3 ]
Ye, Wei-Min [1 ,2 ]
Lin, Cui-hua [4 ]
Zhang, Xiong-Fei [4 ]
Ye, Bin [1 ,2 ]
机构：
[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China
[2] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China
[3] Changsha Univ Sci & Technol, Sch Civil Engn & Architecture, Changsha 410114, Hunan, Peoples R China
[4] Changsha Univ Sci & Technol, Sch Chem & Biol Engn, Changsha 410114, Hunan, Peoples R China
来源：
ENVIRONMENTAL EARTH SCIENCES | 2012年 / 67卷 / 05期
关键词：
Adsorption; Cr(III); GMZ bentonite; pH; Ionic strength; Isotherms; IONIC-STRENGTH; FOREIGN IONS; MX-80; BENTONITE; GMZ BENTONITE; PH; SORPTION; CADMIUM; MONTMORILLONITE; THORIUM(IV); KAOLINITE;
D O I：
10.1007/s12665-012-1569-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The adsorption behaviors of Cr(III) from aqueous solution by Gaomiaozi (GMZ) bentonite were studied using equilibrium batch techniques. The effects of shaking time, pH value, adsorbent dose, ionic strength and temperature on adsorption capacity of GMZ bentonite were investigated. The optimum pH value was defined to be 7.0 at temperature 293.15 K. Kinetic and isotherm experiments were carried out at the optimum pH. It was enough to reach the adsorption equilibrium at 2 h and the maximum adsorption capacity was 4.68 mg/g under the given experimental conditions. The equilibrium data were fitted to pseudo-second-order kinetic equation. The Freundlich adsorption isotherm models were conducted for the description of the adsorption process.
引用
收藏
页码：1261 / 1268
页数：8
相关论文
共 46 条
[1]   The effect of some operating variables on the adsorption of lead and cadmium ions on kaolinite clay [J].
Adebowale, Kayode O. ;
Unuabonah, Iyayi E. ;
Olu-Owolabi, Bamidele I. .
JOURNAL OF HAZARDOUS MATERIALS, 2006, 134 (1-3) :130-139
[2]   The adsorption of Cu(II) ions on bentonite - a kinetic study [J].
Al-Qunaibit, MH ;
Mekhemer, WK ;
Zaghloul, AA .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 283 (02) :316-321
[3]  
Atalay E, 2009, HAZARD TOXIC RADIOAC, V14, P132
[4]   Adsorption of chromate and molybdate by cetylpyridinium bentonite [J].
Atia, Asem A. .
APPLIED CLAY SCIENCE, 2008, 41 (1-2) :73-84
[5]   A mechanistic description of Ni and Zn sorption on Na-montmorillonite .1. Titration and sorption measurements [J].
Baeyens, B ;
Bradbury, MH .
JOURNAL OF CONTAMINANT HYDROLOGY, 1997, 27 (3-4) :199-222
[6]   Adsorption of cadmium from aqueous solution by phosphogypsum [J].
Balkaya, Nilguen ;
Cesur, Hasan .
CHEMICAL ENGINEERING JOURNAL, 2008, 140 (1-3) :247-254
[7]   Adsorption behavior of Cr(VI) on activated hazelnut shell ash and activated bentonite [J].
Bayrak, Y ;
Yesiloglu, Y ;
Gecgel, U .
MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 91 (1-3) :107-110
[8]   Adsorption of a few heavy metals on natural and modified kaolinite and montmorillonite: A review [J].
Bhattacharyya, Krishna Gopal ;
Sen Gupta, Susmita .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2008, 140 (02) :114-131
[9]   Adsorption of heavy metal ions on soils and soils constituents [J].
Bradl, HB .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 277 (01) :1-18
[10]   Adsorption of Ba2+ by Ca-exchange clinoptilolite tuff and montmorillonite clay [J].
Chavez, M. L. ;
de Pablo, L. ;
Garcia, T. A. .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 175 (1-3) :216-223
12345