Effects of Oxides in Soil (Sediment) on the Mobility of Phosphorous and Heavy Metals

LIU Yi

doi:10.16779/j.cnki.1003-5508.2014.03.002

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Volume 35 Issue 3

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2014 > 35(3): 13-20

LIU Yi. Effects of Oxides in Soil (Sediment) on the Mobility of Phosphorous and Heavy Metals[J]. Journal of Sichuan Forestry Science and Technology, 2014, 35(3): 13-20. doi: 10.16779/j.cnki.1003-5508.2014.03.002

Citation:

LIU Yi. Effects of Oxides in Soil (Sediment) on the Mobility of Phosphorous and Heavy Metals[J]. Journal of Sichuan Forestry Science and Technology, 2014, 35(3): 13-20. doi: 10.16779/j.cnki.1003-5508.2014.03.002

Effects of Oxides in Soil (Sediment) on the Mobility of Phosphorous and Heavy Metals

doi: 10.16779/j.cnki.1003-5508.2014.03.002

LIU Yi^,

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Sichuan Academy of Forestry, Chengdu 610081, China

Received Date: 2014-03-24

Abstract

Concentration, species and mobility of phosphorus and heavy metal in water and soil (sediment) are largely controlled by the surface sorption and desorption processes on iron,manganese and aluminum (hydro) oxides and closely related to people's health. In this paper,a description was given of the environmental effects of phosphorus (P) and heavy metal,and (hydro) oxides of iron,manganese and aluminum were taken as examples,aiming to make an overview of types of oxides in soil(sediment),possible adsorption mechanisms of phosphorus and heavy metal onto oxides(inner-sphere complexation, outersphere complexation and retention in the diffuse swarm)and adsorption models (empirical and semi-empirical isothermal equations,surface complexation model). Then, the main factors affecting the regulation of mobility of P and heavy metal by oxides were summarized and likely competitive and cooperative adsorption behaviors among different oxides were also presented. Obviously, it has been shown that the employment of new in-situ techniques is essential for examining the characteristics of adsorption and desorption occurring at the oxide/water interface at atomic and molecular level,thus being able to better understand the complex reaction processes in multi-interface systems including different oxides or oxide species.
- Oxides;
- Phosphorus;
- Heavy metal;
- Adsorption;
- Inner-sphere complexation;
- Outer-sphere complexation;
- Surface complexation model
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Oxides in Soil (Sediment) on the Mobility of Phosphorous and Heavy Metals

doi: 10.16779/j.cnki.1003-5508.2014.03.002

LIU Yi^,

Sichuan Academy of Forestry, Chengdu 610081, China

Received Date: 2014-03-24

Key words:

Abstract: Concentration, species and mobility of phosphorus and heavy metal in water and soil (sediment) are largely controlled by the surface sorption and desorption processes on iron,manganese and aluminum (hydro) oxides and closely related to people's health. In this paper,a description was given of the environmental effects of phosphorus (P) and heavy metal,and (hydro) oxides of iron,manganese and aluminum were taken as examples,aiming to make an overview of types of oxides in soil(sediment),possible adsorption mechanisms of phosphorus and heavy metal onto oxides(inner-sphere complexation, outersphere complexation and retention in the diffuse swarm)and adsorption models (empirical and semi-empirical isothermal equations,surface complexation model). Then, the main factors affecting the regulation of mobility of P and heavy metal by oxides were summarized and likely competitive and cooperative adsorption behaviors among different oxides were also presented. Obviously, it has been shown that the employment of new in-situ techniques is essential for examining the characteristics of adsorption and desorption occurring at the oxide/water interface at atomic and molecular level,thus being able to better understand the complex reaction processes in multi-interface systems including different oxides or oxide species.