Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil

An, Mengjie; Hong, Dashuang; Chang, Doudou; Wang, Kaiyong; Fan, Hua

Mengjie An, Dashuang Hong, Doudou Chang, Kaiyong Wang, Hua Fan

Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil

Abstract:

This paper studies the influence of four modifiers (organic-inorganic composite modifiers, inorganic polymer compound modifiers, polyacrylate compound modifiers, organic polymer compound modifiers) on soil pH, cation exchange capacity (CEC), Cd concentration and their distribution and migration in the soil profile under high Cd concentration (40 mg/kg) during continuous remediation tub experiment. The results showed that: (1) Four modifiers significantly increased the pH and CEC in each soil layer, and inorganic polymer compound modifiers providing the best results in the 0 -20 cm soil layer. (2) There is an extremely significant negative correlation between the carbonate-bound Cd and exchangeable Cd, with considerable effect in the 0 -20 cm and 20 -40 cm soil layers. The inorganic polymer compound modifiers had the best effect on the soil exchangeable Cd. (3) Both pH and CEC in all soil layers were negatively correlated with exchangeable Cd and positively correlated with other forms. (4) Fourier transform infrared spectrometry (FTIR) analysis showed that the modifiers immobilize soil Cd mainly through chemical precipitation, complexation and adsorption so as to reduce the bioavailability of Cd. Thus, we concluded that four modifiers are suitable for Cd mediation/Cd stabilization purposes.

Keywords:
Cadmium; Liquid polymer modifier; Soil Cd form distribution; Profile distribution

Issue: 2020, Volume 71, Issue 4

Pages: 633-645

Publication date: 2020/5/5

https://doi.org/10.37358/RC.20.4.8103

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
AN, M., HONG, D., CHANG, D., WANG, K., FAN, H., Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil, Rev. Chim., 71(4), 2020, 633-645.

Vancouver
An M, Hong D, Chang D, Wang K, Fan H. Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil. Rev. Chim.[internet]. 2020 Apr;71(4):633-645. Available from: https://doi.org/10.37358/RC.20.4.8103

APA 6th edition
An, M., Hong, D., Chang, D., Wang, K. & Fan, H. (2020). Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil. Revista de Chimie, 71(4), 633-645. https://doi.org/10.37358/RC.20.4.8103

Harvard
An, M., Hong, D., Chang, D., Wang, K., Fan, H. (2020). 'Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil', Revista de Chimie, 71(4), pp. 633-645. https://doi.org/10.37358/RC.20.4.8103

IEEE
M. An, D. Hong, D. Chang, K. Wang, H. Fan, "Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil". Revista de Chimie, vol. 71, no. 4, pp. 633-645, 2020. [online]. https://doi.org/10.37358/RC.20.4.8103

Text
Mengjie An, Dashuang Hong, Doudou Chang, Kaiyong Wang, Hua Fan,
Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil,
Revista de Chimie,
Volume 71, Issue 4,
2020,
Pages 633-645,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.4.8103.
(https://revistadechimie.ro/Articles.asp?ID=8103)
Keywords: Cadmium; Liquid polymer modifier; Soil Cd form distribution; Profile distribution

RIS
TY - JOUR
T1 - Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil
A1 - An, Mengjie
A2 - Hong, Dashuang
A3 - Chang, Doudou
A4 - Wang, Kaiyong
A5 - Fan, Hua
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 4
SP - 633
EP - 645
UR - https://doi.org/10.37358/RC.20.4.8103
KW - Cadmium
KW - Liquid polymer modifier
KW - Soil Cd form distribution
KW - Profile distribution
ER -

BibTex
@article{RevCh2020P633,
author = {An Mengjie and Hong Dashuang and Chang Doudou and Wang Kaiyong and Fan Hua},
title = {Cadmium Distribution and Migration as Influenced by Polymer Modifiers in a Loam Soil},
journal = {Revista de Chimie},
volume = {71},
number = {4},
pages = {633-645},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.4.8103},
url = {https://revistadechimie.ro/Articles.asp?ID=8103}
}

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