Evaluation of the sorption properties of a Mexican clinoptilolite-rich tuff for iron, manganese and iron-manganese systems

被引:44
作者
Garcia-Mendieta, A. [1 ,2 ]
Solache-Rios, M. [1 ]
Olguin, M. T. [1 ]
机构
[1] Inst Nacl Invest Nucl, Dept Quim, Mexico City 11801, DF, Mexico
[2] Inst Tecnol Toluca, Metepec 52140, Estado Mexico, Mexico
关键词
Iron; Manganese; Clinoptilolite-rich tuff; Kinetic; Isotherm; ION-EXCHANGE; NATURAL ZEOLITES; DRINKING-WATER; METAL-CATIONS; REMOVAL; EXPOSURE; PRETREATMENT; ZN2+;
D O I
10.1016/j.micromeso.2008.09.028
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
In the present work a Mexican clinoptilolite-rich tuff was characterized, modified in its sodium form, and its sorption properties for the removal of iron and manganese from aqueous solutions were determined. The removal behavior of iron and manganese by the zeolitic material was performed in batch system. Clinoptilolite, heulandite, mordenite and quartz were found as the main components of the zeolitic material, the specific surface area for the sodium modified zeolitic material was higher than for the unmodified material. The maximum iron and manganese removal was found at initial pH value of 6.0. Iron was higher removed from the aqueous solutions than manganese by the sodium modified zeolitic material in single systems, in binary systems iron and manganese compete for the active sites of the zeolitic material, decreasing the removal of both metals. Sodium, calcium, potassium and magnesium were determined in the different zeolitic tuffs and it was found that mainly the ion exchange mechanism is responsible for manganese removal and precipitation for iron removal at pH 6.0. The kinetic results were best adjusted to the pseudo-second order model equation and the isotherms to the Freundlich isotherm model. Sodium modified zeolitic tuff removed more manganese and iron from aqueous solution than the unmodified material. These results showed that the Mexican clinoptilolite rich tuff in its sodium form could be used efficiently for the removal of iron and manganese from aqueous solutions in single and binary systems. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:489 / 495
页数:7
相关论文
共 35 条
[1]  
[Anonymous], 1997, Theory and practice of water and wastewater treatment
[2]  
Baird C, 2001, ENV CHEM
[3]   Hair manganese and hyperactive behaviors: Pilot study of school-age children exposed through tap water [J].
Bouchard, Maryse ;
Laforest, Francois ;
Vandelac, Louise ;
Bellinger, David ;
Mergler, Donna .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2007, 115 (01) :122-127
[4]   Pesticides and Parkinson's disease - Is there a link? [J].
Brown, TP ;
Rumsby, PC ;
Capleton, AC ;
Rushton, L ;
Levy, LS .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2006, 114 (02) :156-164
[5]   Ion exchange properties of natural clinoptilolite:: lead-sodium and cadmium-sodium equilibria [J].
Çulfaz, M ;
Yagiz, M .
SEPARATION AND PURIFICATION TECHNOLOGY, 2004, 37 (02) :93-105
[6]   Removal of toxic metals from wastewater by Brazilian natural scolecite [J].
Dal Bosco, SM ;
Jimenez, RS ;
Carvalho, WA .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 281 (02) :424-431
[7]   The removal of victoria blue from aqueous solution by adsorption on a low-cost material [J].
Demirbas, O ;
Alkan, M ;
Dogan, M .
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, 2002, 8 (04) :341-349
[8]   Characterization and improvement of ion exchange capacities of Mexican clinoptilolite-rich tuffs [J].
Díaz-Nava, MC ;
Olguín, MT ;
Solache-Ríos, M ;
Alarcón-Herre-Ra, MT ;
Aguilar-Elguezabal, A .
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY, 2005, 51 (3-4) :231-240
[9]   Use of clinoptilolite and an Fe-overexchanged clinoptilolite in Zn2+ and Mn2+ removal from drinking water [J].
Dimirkou, Anthoula ;
Doula, Maria K. .
DESALINATION, 2008, 224 (1-3) :280-292
[10]   The removal of heavy metal cations by natural zeolites [J].
Erdem, E ;
Karapinar, N ;
Donat, R .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 280 (02) :309-314