Mobility, bioavailability and pH-dependent leaching of cadmium, zinc and lead in a contaminated soil amended with biochar

• Published in: Chemosphere (Oxford) Vol. 92; no. 11; pp. 1450 - 1457
• Main Authors: Houben, David, Evrard, Laurent, Sonnet, Philippe
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.09.2013; Elsevier
• Subjects: Amendment; Applied sciences; Bioavailability; Biochar; Biological and physicochemical properties of pollutants. Interaction in the soil; Biological Availability; cadmium; Cadmium - chemistry; Cadmium - pharmacokinetics; Charcoal; Charcoal - chemistry; chemistry; Exact sciences and technology; Heavy metal; Hydrogen-Ion Concentration; Immobilization; Kinetics; leaching; lead; Lead - chemistry; Lead - pharmacokinetics; Lolium; Lolium - metabolism; Lolium multiflorum; metabolism; Metals, Heavy; Metals, Heavy - chemistry; Metals, Heavy - pharmacokinetics; Motion; neutralization; pharmacokinetics; polluted soils; Pollution; shoots; Soil and sediments pollution; soil pH; Soil Pollutants; Soil Pollutants - chemistry; Soil Pollutants - pharmacokinetics; sowing; zinc; Zinc - chemistry; Zinc - pharmacokinetics; Immobilization; pH; Amendment; Bioavailability; Biochar; Heavy metal; Cadmium; Combustion residue; Mobility; Transition metal; Mutagen; Zinc; Transport process; Trace element; Lead; Lixiviation; Poison; Soil interaction; Charcoal

•Biochar application to soils reduces the mobility and the bioavailability of metals.•Biochar-induced immobilization of metals in soil is mainly due to a liming effect.•Aging reactions can decrease metal mobility over time in biochar amended soils.•Biochar incorporation does not affect the metal rel...