Garau, Giovanni and Silvetti, Margherita and Castaldi, Paola and Mele, Elena and Deiana, Pietrino and Deiana, Salvatore Andrea (2014) Stabilising metal(loid)s in soil with iron and aluminium-based products: microbial, biochemical and plant growth impact. Journal of environmental management, Vol. 139 , p. 146-153. ISSN 0301-4797. eISSN 1095-8630. Article.
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Four iron and aluminium-based products, including red mud (RM), hematite (Fe2O3), an iron-rich water treatment residual (Fe-WTR) and amorphous Al hydroxide (Al-OH), were evaluated for their effectiveness at stabilising As and heavy metals (i.e. Cd, Cu, Pb, Zn) in a circumneutral contaminated soil [As (2105 mg kg−1), Cd (18 mg kg−1), Cu (264 mg kg−1), Pb (710 mg kg−1), Zn (522 mg kg−1)]. Treatment impacts on soil microbial and biochemical features (i.e. microbial biomass-C, microbial counts, 16S rRNA PCR-TTGE of culturable bacteria, dehydrogenase, urease and β-glucosidase activity, Biolog derived parameters-AWCD and richness) as well as bean (Phaseolus vulgaris) and wheat (Triticum vulgare) growth were also assessed.
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