Sorption kinetics of Fe(II), Zn(II), Co(II), Ni(II), Cd(II), and Fe(II)/Me(II) onto hematite

被引:98
作者
Jeon, BH [1 ]
Dempsey, BA [1 ]
Burgos, WD [1 ]
Royer, RA [1 ]
机构
[1] Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16802 USA
关键词
divalent metal ions; hematite; slow sorption kinetics; sorption competition;
D O I
10.1016/S0043-1354(03)00342-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The reactions of Fe(II) and other divalent metal ions including Zn, Co, Ni, and Cd on hematite were studied in single and competitive binary systems with high sorbate/sorbent ratios in 10 mM PIPES (pH 6.8) solution under strict anoxic conditions. Adsorbed Me(II) was defined as extractable by 0.5 N HCl within 20 h, and fixed Me(II) was defined as the additional amount that was extracted by 3.0 N HCl within 7 days. Binary systems contained Fe(II) plus a second metal ion. The extent of uptake of divalent metal ions by hematite was in order of Fe greater than or equal to Zn > Co greater than or equal to Ni > Cd. For all metals tested, there was an instantaneous adsorption followed by a relatively slow stage that continued for the next 1-5 days. This sequence occurred in both single and binary systems, and could have been due to a variety of sorption site types or due to slow conversion from outer- to inner-sphere surface complexes due to increasing surface charge. Sorption competition was observed between Fe(II) and the other metal ions. The displacement of Fe(II) by Me(II) was in order of Ni similar to Zn > Cd, and the displacement of Me(II) by Fe(II) was in order of Cd > Zn similar to Ni > Co. Fixed Fe(II) was in order of Fe + Co (20%) > Fe + Cd (6%) > Fe - Zn (4%) > Fe similar to Ni (4%) after 30 days. There was no fixation for the other metals in single or binary systems. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4135 / 4142
页数:8
相关论文
共 39 条
[1]  
ALLISON JD, 1990, MINTEQA2 PRODERA2 GE
[2]  
*APHA, 1995, STAND MTH EX WAT WAS
[3]   REACTION-KINETICS OF THE ADSORPTION AND DESORPTION OF NICKEL, ZINC AND CADMIUM BY GOETHITE .2. MODELING THE EXTENT AND RATE OF REACTION [J].
BARROW, NJ ;
GERTH, J ;
BRUMMER, GW .
JOURNAL OF SOIL SCIENCE, 1989, 40 (02) :437-450
[4]   MULTIPLE-SITE ADSORPTION OF CD, CU, ZN, AND PB ON AMORPHOUS IRON OXYHYDROXIDE [J].
BENJAMIN, MM ;
LECKIE, JO .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1981, 79 (01) :209-221
[5]   Competitive sorption of copper and lead at the oxide-water interface: Implications for surface site density [J].
Christl, I ;
Kretzschmar, R .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1999, 63 (19-20) :2929-2938
[6]   Competition of Cd, Cu, and Pb adsorption on goethite [J].
Christophi, CA ;
Axe, L .
JOURNAL OF ENVIRONMENTAL ENGINEERING, 2000, 126 (01) :66-74
[7]   Zinc immobilization and magnetite formation via ferric oxide reduction by Shewanella putrefaciens 200 [J].
Cooper, DC ;
Picardal, F ;
Rivera, J ;
Talbot, C .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (01) :100-106
[8]  
Cornell R.M., 1996, The Iron Oxide: Structure, Properties, Reactions, Occurance and Uses
[9]   NONREVERSIBLE ADSORPTION OF DIVALENT METAL-IONS (MN-II, CO-II NI-II CU-II AND PB-II) ONTO GOETHITE - EFFECTS OF ACIDIFICATION, FE-II ADDITION, AND PICOLINIC-ACID ADDITION [J].
COUGHLIN, BR ;
STONE, AT .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1995, 29 (09) :2445-2455
[10]  
Dzombak D.A., 1990, SURFACE COMPLEXATION