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Assessment of chemical, biochemical and ecotoxicological aspects in a mine soil...
Alvarenga, P.; Palma, P.; Gonçalves, A.P.; Baião, N.; Fernandes, R.M.; Varennes, A. de; Vallini, G.; Duarte, E.; Cunha-Queda, A.C.A greenhouse pot experiment was conducted to evaluate the effect of sewage sludge (SS), of sugar beet sludge (SBS), or of a combination of both, in the remediation of a highly acidic (pH 3.6) metal-contaminated soil, affected by mining activities. The SS was applied at 100 and 200 Mg ha 1 (dry weight basis), and the SBS at 7 Mg ha 1. All pots were sown with Italian ryegrass (Lolium multiflorum Lam.). After 60 d...
Evaluation of composts and liming materials in the phytostabilization of a mine...
Alvarenga, P.; Gonçalves, A.P.; Fernandes, R.M.; Varennes, A.; Vallini, G.; Duarte, E.; Cunha-Queda, A.C.A microcosm experiment was carried out to evaluate the effects of municipal solid waste compost (MSWC) or garden waste compost (GWC), and liming materials in the rehabilitation of a soil affected by mining activities, and to study the use of perennial ryegrass (Lolium perenne L.) for phystostabilization. The performance of the amendments was assessed by soil chemical parameters, total and bioavailable metals (C...
Evaluation of tests to assess the quality of mine-contaminated soils
Alvarenga, P.; Palma, P.; Gonçalves, A.P.; Fernandes, R.M.; Varennes, A.; Vallini, G.; Duarte, E.; Cunha-Queda, A.C.An acid metal-contaminated soil from the Aljustrel mining area (a pyrite mine located in SW Portugal in the Iberian Pyrite Belt) was subjected to chemical characterisation and total metal quantiWcation (Cd, Cr, Cu, Ni, Pb and Zn). Water-soluble metals were determined and a sequential extraction procedure was used to investigate metal speciation. Two bioavailable metal fractions were determined: a mobile fractio...
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