Cited by 14Heavy metals in environmentEnvironmental and Analytical Chemistry StudiesAdsorption and biosorption for pollutant removal

Assessment of amendments for the immobilization of Cu in soils containing EDDS leachates

Yang, Li, Jiang, Longfei, Wang, Guiping, Chen, Yahua, Shen, Zhenguo, Luo, Chunling·2015·Environmental Science and Pollution Research

Abstract

In this study, the effectiveness of six soil amendments (ferrihydrite, manganese dioxide, gibbsite, calcium carbonate, biochar, and organic fertilizer) was investigated to assess the feasibility of minimizing possible environmental contaminant leaching during S,S-ethylenediaminedisuccinic acid (EDDS)-enhanced phytoextraction process based on 0.01-M CaCl2 extraction. Results showed that the application of EDDS could significantly increase Cu concentrations in the leaching solution. Compared with control, incorporation of six amendments (excluding organic fertilizer) significantly decreased CaCl2-extractable Cu concentrations in both soils. When EDDS-containing solutions leached from the soil columns (mimicking the upper soil layers) were added to soils with different amendments (mimicking the subsoil), CaCl2-extractable Cu in the soils amended with ferrihydrite, manganese dioxide, gibbsite, and calcium carbonate was significantly lower than that in the control soil (no amendments) and remained relatively constant during the first 14 days. Incorporation of biochar or organic fertilizer had no positive effect on the immobilization of Cu in EDDS leachates in soils. After 14 days, CaCl2-extractable Cu concentration decreased rapidly in soils incorporated with various amendments. Integrating soil washing with biodegradable chelating agents or chelant-enhanced phytoextraction and immobilization of heavy metals in subsoil could be used to rapidly reduce the concentration of bioavailable metal fractions in the upper soil layers and minimize environmental risks of secondary pollution.

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Crossref · 10.1007/s11356-015-4840-9

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Authors
Yang, L., Jiang, L., Wang, G., Chen, Y., Shen, Z., & Luo, C.
Affiliations
  • Nanjing Agricultural University (CN)
  • Chinese Academy of Sciences (CN)
Corresponding author
  • Shen, Zhenguo
  • Luo, Chunling
Venue
Environmental Science and Pollution Research
Published
2015-06-17
Volume
22
Issue
21
Pages
16525-16534
ISSN
  • 0944-1344 (ISSN-L)
  • 1614-7499
OpenAlex
W2181571531
Cited by
14
References
55
Citations by year
2025: 1 · 2021: 1 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 3 · 2016: 3
FWCI
1.86
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science and Pollution Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
copper immobilization, soil amendment, ferrihydrite, manganese dioxide, gibbsite, calcium carbonate, biochar, organic fertilizer, heavy metal leaching, subsoil contamination, secondary pollution, copper bioavailability
MeSH terms
Calcium Chloride, Copper, Ethylenediamines, Fertilizers, Soil, Soil Pollutants, Solutions, Succinates, Environmental Restoration and Remediation

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