Adsorption of arsenate on soils. Part 2: Modeling the relationship between adsorption capacity and soil physiochemical properties using 16 Chinese soils

被引：54

作者：

Jiang, W

Zhang, SZ

Shan, XQ

Feng, MH

Zhu, YG

McLaren, RG

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China

[2] Lincoln Univ, Agr & Life Sci Div, Soil & Phys Sci Grp, Canterbury, New Zealand

来源：

ENVIRONMENTAL POLLUTION | 2005年 / 138卷 / 02期

基金：

中国国家自然科学基金;

关键词：

arsenate adsorption; soil properties; citrate-dithionite extractable Fe; Langmuir equation;

D O I：

10.1016/j.envpol.2005.03.008

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An attempt has been made to elucidate the effects of soil properties on arsenate adsorption by modeling the relationships between adsorption capacity and the properties of 16 Chinese soils. The model produced was validated against three Australian and three American soils. The results showed that nearly 93.8% of the variability in arsenate adsorption on the low-energy surface could be described by citrate-dithionite extractable Fe (Fe-CD), clay content, organic matter content (OM) and dissolved organic carbon (DOC); nearly 87.6% of the variability in arsenate adsorption on the high-energy surface could be described by Fe-CD, DOC and total arsenic in soils. Fe-CD exhibited the most important positive influence on arsenate adsorption. Oxalate extractable Al (Al-OX), citrate-dithionite extractable Al (Al-CD) extractable P and soil pH appeared relatively unimportant for adsorption of arsenate by soils. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：285 / 289

页数：5

共 21 条

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