Using biochar for remediation of soils contaminated with heavy metals and organic pollutants

Zhang, Xiaokai; Wang, Hailong; He, Linli; Lu, Keding; Sarmah, Ajit K.; Li, Jianwu; Bolan, Nanthi; Pei, Jianchuan; Huang, Huagang

doi:10.1007/s11356-013-1659-0

Cited by 734 publications

(271 citation statements)

References 77 publications

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“…Terra Petra) (Lehmann and Joseph, 2009). Moreover, Fellet et al (2011), Beesley and and Zhang et al (2013) demonstrated the effectiveness of biochar to remediate PTE contaminated mine soils by reducing their concentrations in soil pore water and in the plants grown in the amended soils.…”

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

100

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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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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

100

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“…Similarly, grain yield and biological yield increased for all application rates of RHC and RH compared to that of the control. The increase in the number of tiller in RHC 2% can be due to the extra nutrient available to the plant due to increased water holding capacity of soil [36] [41]. Application of biochar to soil enhances the soil physical properties and also increases the nutrient supply to plant [42].…”

Section: The Effect Of Rh and Rhc On Crop Growth And Yield Componentsmentioning

confidence: 99%

Effects of Rice Husk and Rice Husk Charcoal on Soil Physicochemical Properties, Rice Growth and Yield

Mishra¹,

Taing²,

Hall³

et al. 2017

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To investigate the effect of the application of rice husk (RH) and rice husk charcoal (RHC) on soil properties and rice production, pot experiment comprising of five treatments was conducted. Soil was mixed at the rate of 0 (control), 2% and 4% (w/w) with RH and RHC, respectively with randomized complete block design (RCBD). RHC incorporation had a potential to reduce the acidity of the soil, whereas, RH incorporation had almost no effect on the pH of the soil. RH and RHC amendment both increased the saturated hydraulic conductivity, saturated water content, plant available water and field capacity but decreased the bulk density of soil. Crop growth components at harvest revealed that the highest plant height was recorded in RH4%. However, for the panicle length, panicle weight and number of tillers, the highest value was found in RHC2%, 14.2 cm, 4.0 g and 28.8 cm, respectively. Furthermore, number of panicle, 1000-grains weight and grain yield were also found highest in RHC2%, 22.4 g and 4.41 t/ha, respectively. However, for the number of grain per panicle and percentage of filled grain, the highest value was found in RH4%, 79.0 and 88.5, respectively. The grain yield increased by 38%, 28%, 18% and 22% and the biological yield increased by 27%, 18%, 14%, and 16% for RHC2%, RHC4%, RH2%, and RH4%, respectively, compared to that of the control; however, the significant difference was found only for RHC2% for both. The harvest index increased under all application rates of RH and RHC compared to that of control.

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“…5). Especially, the latter reflects efforts by China to protect the environment and to restore degraded/polluted land (Zhang et al 2016;Albert and Xu 2014) using biochar (Kong et al 2014;Ahmad et al 2014;Zhang et al 2013). Other countries in this group (e.g.…”

Section: Influence Of Development On Biochar Researchmentioning

confidence: 99%

Biochar research activities and their relation to development and environmental quality. A meta-analysis

Mehmood

García

Schirrmann

et al. 2017

Agron. Sustain. Dev.

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Using biochar for remediation of soils contaminated with heavy metals and organic pollutants

Cited by 734 publications

References 77 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 Rice Husk and Rice Husk Charcoal on Soil Physicochemical Properties, Rice Growth and Yield

Biochar research activities and their relation to development and environmental quality. A meta-analysis

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