Biochar application to a contaminated soil reduces the availability and plant uptake of zinc, lead and cadmium

Puga, Aline Peregrina; Abreu, Cleide Aparecida de; Melo, Leônidas Carrijo Azevedo; Beesley, Luke

doi:10.1016/j.jenvman.2015.05.036

Cited by 300 publications

(88 citation statements)

References 26 publications

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“…Puga et al (2015) also demonstrated a beneficial effect of biochar on plant dry weight when up to 5% sugar cane straw biochar was applied on a former zinc mining area.…”

Section: Accepted M Manuscriptmentioning

confidence: 88%

“…Firstly, it is well known that biochar application improves soil in two ways: i) biochar application by itself adds nutrients to soil, enhances nutrient availability, increases soil pH and consequently induces a higher EC (Smider and Singh, 2014); ii) biochar addition improves water holding capacity (Agegnehu et al, 2015) and increases the SPW phosphorous (Puga et al, 2015), total nitrogen and major cation concentrations (Hossain et al, 2010).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

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Effect of biochar amendments on As and Pb mobility and phytoavailability in contaminated mine technosols phytoremediated by Salix

Lebrun

Macri

Miard

et al. 2017

Journal of Geochemical Exploration

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To cite this version:Manhattan Lebrun, Carmelo Macri, Florie Miard, Nour Hattab-Hambli, Mikael Motelica-Heino, et al.. Effect of biochar amendments on As and Pb mobility and phytoavailability in contaminated mine technosols phytoremediated by Salix. Journal of Geochemical Exploration, Elsevier, 2017Elsevier, , 182, pp.149-156. <10.1016Elsevier, /j.gexplo.2016 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Mining activities lead to widespread environmental pollution of terrestrial ecosystems due to the presence of metal(loid)s in tailings. These contaminated areas present a health risk and hence need to be rehabilitated. Ex situ methods for soil remediation have been used for a long time but are expensive and disruptive to soil. Phytoremediation techniques for the stabilization or extraction of metal(loid)s could be an efficient alternative as they provide a low-cost and environmentally friendly option. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTHowever, due to the often poor nutrient content of these contaminated soils, amendments must be added to enhance plant growth and to improve phytoremediation efficiency. Biochar, a pyrogenic product, is a promising amendment for assisted phytoremediation. The aims of our study were (i) to evaluate the effect of a pinewood biochar on the physicochemical properties of a former mine contaminated technosol, (ii) to assess the mobility and phytoavailability of As and Pb and (iii) to investigate the remediation potential of three willow species (Salix alba, Salix viminalis and Salix purpurea). A greenhouse experiment was conducted with contaminated technosols amended with biochar and garden soil, single or combined, revegetated with the 3 willow species. The physicochemical properties of soil pore water (SPW) as well as metal(loid) concentrations were determined. Plant growth, Salix organ dry weight and metal(loid) uptake were determined in order to evaluate the phytoremediation potential of the three Salix species studied. Biochar increased the pH and electrical conductivity of SPW. Biochar addition had no effect on As mobility but decreased SPW Pb concentration by 70%. For the three Salix species investigated, biochar addition to the polluted soil induced a better growth and a higher dry weight production. In most modalities tested, the metal(loid)A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTcontent in the Salix organs increased due to the biochar application. Globally, a positive effect of biochar was noticed on the soil qualities (pH and electrical conductivity increase) and plant growth.Metal(loid)s were mostly confined to the roots. Amon...

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“…Puga et al (2015) also demonstrated a beneficial effect of biochar on plant dry weight when up to 5% sugar cane straw biochar was applied on a former zinc mining area.…”

Section: Accepted M Manuscriptmentioning

confidence: 88%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Effect of biochar amendments on As and Pb mobility and phytoavailability in contaminated mine technosols phytoremediated by Salix

Lebrun

Macri

Miard

et al. 2017

Journal of Geochemical Exploration

View full text Add to dashboard Cite

show abstract

“…Novak et al (2016) pointed out that the effects of biochar on crop yield can be both positive and negative because of differences in the initial soil properties. In addition, various articles mention that biochar can reduce the phytoavailability of heavy metals in soil effectively (Park et al 2011;Zhang et al 2013;Bian et al 2014;Puga et al 2015). In either plant growth promotion or contaminated soil remediation, the application rate of biochar is considered one of the key factors (Cui et al 2011(Cui et al , 2012Jeffery et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar on Cadmium Accumulation in Rice and Cadmium Fractions of Soil: A Three-Year Pot Experiment

Meng

Chen

et al. 2016

BioResources

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“…trace elements as a consequence of human activity (Cabral-Oliveira et al 2015; Puga et al 2015; Rovira et al 2015). It causes slow and practically irreversible soil destruction (Cabral-Oliveira et al 2015, Lal et al 2015).…”

mentioning

confidence: 99%

Development of the Selected Properties of Zinc-Contaminated Soil Following an Addition of Neutralising Substances

Wyszkowski

Modrzewska

2017

pjss

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Biochar application to a contaminated soil reduces the availability and plant uptake of zinc, lead and cadmium

Cited by 300 publications

References 26 publications

Effect of biochar amendments on As and Pb mobility and phytoavailability in contaminated mine technosols phytoremediated by Salix

Effect of biochar amendments on As and Pb mobility and phytoavailability in contaminated mine technosols phytoremediated by Salix

Effects of Biochar on Cadmium Accumulation in Rice and Cadmium Fractions of Soil: A Three-Year Pot Experiment

Development of the Selected Properties of Zinc-Contaminated Soil Following an Addition of Neutralising Substances

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