Metal leaching along soil profiles after the EDDS application - A field study

Aiguo Wang; Chunling Luo; Renxiu Yang; Yahua Chen; Zhenguo Shen; Xiangdong Li

doi:10.1016/j.envpol.2012.01.031

Metal leaching along soil profiles after the EDDS application - A field study

Aiguo Wang, Chunling Luo, Renxiu Yang, Yahua Chen, Zhenguo Shen, Xiangdong Li

Research output: Journal article publication › Journal article › Academic research › peer-review

61 Citations (Scopus)

Abstract

One concern about the chelant-enhanced phytoextraction is the potential metal leaching associated with chelant application. A field study was carried out and the metal leaching along the 60-cm depth soil profiles were evaluated within 36 days after the biodegradable chelant EDDS was applied. Results showed EDDS significantly increased soluble Cu in the top 5 cm soil layer 1 day after the application, and the increase of soluble metals was generally limited in the top 20 cm soil. Metal speciation analysis indicated all Cu and Zn were in forms of Cu-EDDS and Zn-EDDS complexes in soil solution, and Ca was the major competitor with trace metals to EDDS. The soluble metals decreased quickly with time, and no significant difference was observed in the extractable Cu between EDDS treatments and the controls 22 days after the EDDS addition. The potential leaching associated with biodegradable EDDS addition may be controlled under field conditions.

Original language	English
Pages (from-to)	204-210
Number of pages	7
Journal	Environmental Pollution
Volume	164
DOIs	https://doi.org/10.1016/j.envpol.2012.01.031
Publication status	Published - 1 May 2012

Keywords

EDDS
Field study
Maize
Metal leaching
Phytoextraction

ASJC Scopus subject areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

More information

10.1016/j.envpol.2012.01.031

Cite this

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title = "Metal leaching along soil profiles after the EDDS application - A field study",

abstract = "One concern about the chelant-enhanced phytoextraction is the potential metal leaching associated with chelant application. A field study was carried out and the metal leaching along the 60-cm depth soil profiles were evaluated within 36 days after the biodegradable chelant EDDS was applied. Results showed EDDS significantly increased soluble Cu in the top 5 cm soil layer 1 day after the application, and the increase of soluble metals was generally limited in the top 20 cm soil. Metal speciation analysis indicated all Cu and Zn were in forms of Cu-EDDS and Zn-EDDS complexes in soil solution, and Ca was the major competitor with trace metals to EDDS. The soluble metals decreased quickly with time, and no significant difference was observed in the extractable Cu between EDDS treatments and the controls 22 days after the EDDS addition. The potential leaching associated with biodegradable EDDS addition may be controlled under field conditions.",

keywords = "EDDS, Field study, Maize, Metal leaching, Phytoextraction",

author = "Aiguo Wang and Chunling Luo and Renxiu Yang and Yahua Chen and Zhenguo Shen and Xiangdong Li",

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T1 - Metal leaching along soil profiles after the EDDS application - A field study

AU - Wang, Aiguo

AU - Luo, Chunling

AU - Yang, Renxiu

AU - Chen, Yahua

AU - Shen, Zhenguo

AU - Li, Xiangdong

PY - 2012/5/1

Y1 - 2012/5/1

N2 - One concern about the chelant-enhanced phytoextraction is the potential metal leaching associated with chelant application. A field study was carried out and the metal leaching along the 60-cm depth soil profiles were evaluated within 36 days after the biodegradable chelant EDDS was applied. Results showed EDDS significantly increased soluble Cu in the top 5 cm soil layer 1 day after the application, and the increase of soluble metals was generally limited in the top 20 cm soil. Metal speciation analysis indicated all Cu and Zn were in forms of Cu-EDDS and Zn-EDDS complexes in soil solution, and Ca was the major competitor with trace metals to EDDS. The soluble metals decreased quickly with time, and no significant difference was observed in the extractable Cu between EDDS treatments and the controls 22 days after the EDDS addition. The potential leaching associated with biodegradable EDDS addition may be controlled under field conditions.

AB - One concern about the chelant-enhanced phytoextraction is the potential metal leaching associated with chelant application. A field study was carried out and the metal leaching along the 60-cm depth soil profiles were evaluated within 36 days after the biodegradable chelant EDDS was applied. Results showed EDDS significantly increased soluble Cu in the top 5 cm soil layer 1 day after the application, and the increase of soluble metals was generally limited in the top 20 cm soil. Metal speciation analysis indicated all Cu and Zn were in forms of Cu-EDDS and Zn-EDDS complexes in soil solution, and Ca was the major competitor with trace metals to EDDS. The soluble metals decreased quickly with time, and no significant difference was observed in the extractable Cu between EDDS treatments and the controls 22 days after the EDDS addition. The potential leaching associated with biodegradable EDDS addition may be controlled under field conditions.

KW - EDDS

KW - Field study

KW - Maize

KW - Metal leaching

KW - Phytoextraction

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DO - 10.1016/j.envpol.2012.01.031

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SN - 0269-7491

VL - 164

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JO - Environmental Pollution

JF - Environmental Pollution

ER -

Metal leaching along soil profiles after the EDDS application - A field study

Abstract

Keywords

ASJC Scopus subject areas

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