Viability of organic wastes and biochars as amendments for the remediation of heavy metal-contaminated soils

Venegas, A.; Rigol, Anna; Vidal, Miquel

doi:10.1016/j.chemosphere.2014.06.009

Cited by 112 publications

(64 citation statements)

References 26 publications

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“…Biosolids, treated and stabilized solid organic residual by-products, generally contain heavy metal(-loid)s, although advances in the sewage and wastewater treatment technologies are successfully reducing heavy metal(loid)s level in biosolids. Several studies have reported the negative effect of biosolid application as a source of heavy metal(loid)s contamination in the soil (Cele and Maboeta, 2016); however, some studies have reported the advantageous impact of organic amendments as adsorbent for stabilization of heavy metal(loid)s in the soil (Venegas et al, 2015;Shakoor et al, 2015).…”

Section: Immobilization Techniquesmentioning

confidence: 99%

“…Manure byproducts containing low levels of metal(loid) are nowadays used for metal immobilization in soils (Venegas et al, 2015). Khan et al (2015) reported that the use of farm yard manure (FYM) was highly effective in immobilizing Fe, Cr, Ni, Mn, and Pb, while di-ammonium phosphate (DAP) was more effective for stabilizing Cu, Cd, and Zn in soil.…”

Section: Immobilization Techniquesmentioning

confidence: 99%

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A comparison of technologies for remediation of heavy metal contaminated soils

Khalid

Shahid

Niazi

et al. 2017

Journal of Geochemical Exploration

945

305

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, et al.. A comparison of technologies for remediation of heavy metal contaminated soils. Journal of Geochemical Exploration, Elsevier, 2016Elsevier, , 182, pp.247 -268. 10.1016Elsevier, /j.gexplo.2016 Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr a b s t r a c tSoil contamination with persistent and potentially (eco)toxic heavy metal(loid)s is ubiquitous around the globe. Concentration of these heavy metal(loid)s in soil has increased drastically over the last three decades, thus posing risk to the environment and human health. Some technologies have long been in use to remediate the hazardous heavy metal(loid)s. Conventional remediation methods for heavy metal(loid)s are generally based on physical, chemical and biological approaches, which may be used in combination with one another to clean-up heavy metal(loid) contaminated soils to an acceptable and safe level. This review summarizes the soil contamination by heavy metal(loid)s at a global scale, accumulation of heavy metal(loid)s in vegetables to toxic levels and their regulatory guidelines in soil. In this review, we also elucidate and compare the pool of available technologies that are currently being applied for remediation of heavy metal(loid) contaminated soils, as well as the economic aspect of soil remediation for different techniques. This review article includes an assessment of the contemporary status of technology deployment and recommendations for future remediation research. Finally, the molecular and genetic basis of heavy metal(loid) (hyper)accumulation and tolerance in microbes and plants is also discussed. It is proposed that for effective and economic remediation of soil, a better understanding of remediation procedures and the various options available at the different stages of remediation is highly necessary.

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Section: Immobilization Techniquesmentioning

confidence: 99%

Section: Immobilization Techniquesmentioning

confidence: 99%

A comparison of technologies for remediation of heavy metal contaminated soils

Khalid

Shahid

Niazi

et al. 2017

Journal of Geochemical Exploration

945

305

View full text Add to dashboard Cite

show abstract

“…Numerous studies have estimated the effects of soil organic amendments on controlling the availability and mobility of metals in contaminated soils (Antoniadis and Alloway 2002;Hartley et al 2004;Lee et al 2004;Mohan et al 2014;Venegas et al 2015). Several studies have shown that the application of organic materials, such as straw manure and animal manure, in soils could alleviate metal (i.e., Pb, Zn, Cu, Cd, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…The biochar as the reactive groups in the organic materials provided the large areas and high porosities to immobile the Cd fractions. Meanwhile, they contained the essential nutrients for the germination of plants and can promote plant growth (Venegas et al 2015). However, there was no universal consensus on the influence of organic amendments on metal bioavailability in contaminated soils.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of organic amendment on the effect of cadmium bioavailability in contaminated soils using the DGT technique and traditional methods

Yao

Sun

Wang

et al. 2015

Environ Sci Pollut Res

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Organic amendments have been widely proposed as a remediation technology for metal-contaminated soils, but there exist controversial results on their effectiveness. In this study, the effect of pig manure addition on cadmium (Cd) bioavailability in Cd-contaminated soils was systematically evaluated by one dynamic, in situ technique of diffusive gradients in thin films (DGT) and four traditional methods based on the equilibrium theory (soil solution concentration and the three commonly used extractants, i.e., acetic acid (HAc), ethylenediamine tetraacetic acid (EDTA), and calcium chloride (CaCl). Wheat and maize were selected for measurement of plant Cd uptake. The results showed that pig manure addition could promote the growth of two plants, accompanied by increasing biomasses of shoots and roots with increasing doses of pig manure addition. Correspondingly, increasing additions of pig manure reduced plant Cd uptake and accumulation, as indicated by the decreases of Cd concentrations in shoots and roots. The bioavailable concentrations of Cd in Cd-contaminated soils reflected by the DGT technique obviously decreased with increasing doses of pig manure addition, following the same changing trend as plant Cd uptake. Changes in soil solution Cd concentration and extractable Cd by HAc, EDTA, and CaCl in soils were similar to DGT measurement. Meanwhile, the capability of Cd resupply from solid phase to soil solution decreased with increasing additions of pig manure, as reflected by the decreases in the ratio (R) value of C to C. Positive correlations were observed between various bioavailable indicators of Cd in soils and Cd concentrations in the tissues of the two plants. These findings provide stronger evidence that pig manure amendment is effective in reducing Cd mobility and bioavailability in soils and it is an ideal organic material for remediation of Cd-contaminated soils.

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“…Nas últimas décadas diversos trabalhos estudaram a possibilidade de utilização de turfas e compostos orgânicos na recuperação de áreas contaminadas por metais (RASHID, 1974;QIN et al, 2006;KALMYKOVA;STRÖMVALL;STEENARI, 2008;LOURIE;GJENGEDAL, 2011;BARTCZAK et al, 2015;GIDARAKOS, 2015;VENEGAS;RIGOL;VIDAL, 2015). O principal enfoque inicial destas pesquisas era o tratamento de águas residuais.…”

Section: Lista De Figurasunclassified

Caracterização geológica-geotécnica e estudo da adsorção de Pb, Zn e Cd por turfa e compostos orgânicos

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Viability of organic wastes and biochars as amendments for the remediation of heavy metal-contaminated soils

Cited by 112 publications

References 26 publications

A comparison of technologies for remediation of heavy metal contaminated soils

A comparison of technologies for remediation of heavy metal contaminated soils

Evaluation of organic amendment on the effect of cadmium bioavailability in contaminated soils using the DGT technique and traditional methods

Caracterização geológica-geotécnica e estudo da adsorção de Pb, Zn e Cd por turfa e compostos orgânicos

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