Effect of soil washing with only chelators or combining with ferric chloride on soil heavy metal removal and phytoavailability: Field experiments

Chemosphere
Xiao-Fang GuoWei Zheng

Abstract

In a field experiment on multi-metal contaminated soil, we investigated the efficiency of Cd, Pb, Zn, and Cu removal by only mixture of chelators (MC) or combining with FeCl3. After washing treatment, a co-cropping system was performed for heavy metals to be extracted by Sedum alfredii and to produce safe food from Zea mays. We analyzed the concentration of heavy metals in groundwater to evaluate the leashing risk of soil washing with FeCl3 and MC. Results showed that addition of FeCl3 was favorable to the removal of heavy metals in the topsoil. Metal leaching occurred mainly in rain season during the first co-cropping. The removal rates of Cd, Zn, Pb, and Cu in topsoil were 28%, 53%, 41%, and 21% with washing by FeCl3+MC after first harvest. The application of FeCl3 reduced the yield of S. alfredii and increased the metals concentration of Z. mays in first harvest. However, after amending soil, the metals concentration of Z. mays in FeCl3+MC treatment were similar to that only washing by MC. The grains and shoots of Z. mays were safe for use in feed production. Soil washing did not worsen groundwater contamination during the study period. But the concentration of Cd in groundwater was higher than the limit value of Standard co...Continue Reading

References

Jun 24, 1999·Journal of Hazardous Materials·R W Peters
Jan 15, 1996·Journal of Colloid and Interface Science·B Nowack, L Sigg
Oct 17, 2002·Environmental Science & Technology·Bernd Nowack
Mar 13, 2003·Environmental Science & Technology·Bostjan Kos, Domen Lestan
May 1, 2007·Environmental Pollution·Michael KomárekVladislav Chrastný
Nov 27, 2007·Journal of Hazardous Materials·G DermontM Richer-Laflèche
Sep 8, 2009·Environmental Science & Technology·Masaharu MurakamiTomohito Arao
Sep 15, 2009·Journal of Hazardous Materials·Weihua ZhangRongliang Qiu
May 18, 2011·The Science of the Total Environment·Xiao-san LuoXiang-dong Li
Dec 19, 2012·Environmental Pollution·Masa JelusicDomen Lestan
Oct 1, 2013·The Science of the Total Environment·Zhiyuan LiLei Huang
Nov 21, 2013·The Science of the Total Environment·Paula AlvarengaJoão Xavier Matos

❮ Previous
Next ❯

Citations

Sep 18, 2016·Environmental Science and Pollution Research International·Ruili GaoQingling Fu
Dec 11, 2019·International Journal of Environmental Research and Public Health·Dongxue BiJie Wang
May 22, 2017·Environmental Science and Pollution Research International·Zong-Han YangChih-Ming Kao
Dec 24, 2017·Environmental Science and Pollution Research International·Hongjiao ZhangYuntao Gao
Nov 16, 2019·Bulletin of Environmental Contamination and Toxicology·Mingli JiangLiang Shi
Jun 30, 2019·Bulletin of Environmental Contamination and Toxicology·Yaping ZhangZhen Long
Nov 1, 2020·International Journal of Phytoremediation·Xian'an YuPeter Christie
Dec 26, 2018·The Science of the Total Environment·Qianjun LiuHuawen Hu
Jul 18, 2020·Ecotoxicology and Environmental Safety·Zhongzhen WangYang Li
Jul 13, 2018·The Science of the Total Environment·Guiyin WangMartina G Vijver

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.