Kinetic modeling of antimony(III) oxidation and sorption in soils

被引：33

作者：

Cai, Yongbing ^{[1
,2
]}

Mi, Yuting ^{[3
]}

Zhang, Hua ^{[1
]}

机构：

[1] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai, Shandong, Peoples R China

[2] Univ Chinese Acad Sci, Beijing, Peoples R China

[3] Yantai Univ, Sch Environm & Mat Engn, Yantai, Shandong, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2016年 / 316卷

基金：

中国国家自然科学基金;

关键词：

Antimony(III); Soil; Oxidation; Adsorption; Transport; SB(III) OXIDATION; NATURAL-WATERS; PHOTOINDUCED OXIDATION; ADSORPTION-DESORPTION; SURFACE COMPLEXATION; AMORPHOUS IRON; ENVIRONMENT; TRANSPORT; SB(V); REDUCTION;

D O I：

10.1016/j.jhazmat.2016.05.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Kinetic batch and saturated column experiments were performed to study the oxidation, adsorption and transport of Sb(III) in two soils with contrasting properties. Kinetic and column experiment results clearly demonstrated the extensive oxidation of Sb(III) in soils, and this can in return influence the adsorption and transport of Sb. Both sorption capacity and kinetic oxidation rate were much higher in calcareous Huanjiang soil than in acid red Yingtan soil. The results indicate that soil serve as a catalyst in promoting oxidation of Sb(III) even under anaerobic conditions. A PHREEQC model with kinetic formulations was developed to simulate the oxidation, sorption and transport of Sb(III) in soils. The model successfully described Sb(III) oxidation and sorption data in kinetic batch experiment. It was less successful in simulating the reactive transport of Sb(III) in soil columns. Additional processes such as colloid facilitated transport need to be quantified and considered in the model. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：102 / 109

页数：8

共 47 条

[1] ADSORPTION-KINETICS OF ANTIMONY(V) IONS ONTO ALPHA-FE2O3 SURFACES FROM AN AQUEOUS-SOLUTION [J].