RT Journal Article
T1 Use of marble cutting sludges to immobilize heavy metals and decrease toxicity of contaminated soils.
A1 Martínez Sánchez, Maria José
A1 García Lorenzo, María de la Luz
A1 Pérez Sirvent, Carmen
A1 Marimón, Jorge
AB Heavy metal contamination of soils is particularly dangerous to living organisms. Several studies have demonstrated that marble cutting sludges show a high capacity to remove heavy metal from contaminated soils. In this study, the immobilization effect of these sludges used as an amendment was studied in two sediments from a site affected by mining activities and two soil samples from a highly industrialised area. The samples were mixed with marble cutting sludges to provide four stabilised samples from which forty lixiviums were studied. The results suggest that the addition of these sludges, consisting mainly of carbonates, to heavy metal-polluted soils and sediments, decreases available metal forms. As a complement to chemical analysis and the determination of total contaminants, bioassays can provide information on the stabilisation effects. The leached solutions showed a non-toxic effect when they were submitted to the Microtox® bioassay. The carbonate content seems to play a role in the chemical stabilisation of metals and in lowering the toxicity of these types of sample.
PB Freising Parlar Scientific Publications
SN 1018-4619; ESSN:1610-2304
YR 2008
FD 2008
LK https://hdl.handle.net/20.500.14352/52914
UL https://hdl.handle.net/20.500.14352/52914
LA eng
NO Ministerio de Medio Ambiente
NO Fundación Séneca
DS Docta Complutense
RD 8 abr 2025