Nickel Sequestration in a Kaolinite-Humic Acid Complex

• Published in: Environmental science & technology Vol. 37; no. 3; pp. 529 - 534
• Main Authors: Nachtegaal, Maarten, Sparks, Donald L
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.02.2003
• Subjects: Applied sciences; Biological and physicochemical properties of pollutants. Interaction in the soil; Biological Availability; Chemical Precipitation; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Exact sciences and technology; Humic Substances - chemistry; Kaolin - chemistry; Kinetics; Metals; Nickel; Nickel - chemistry; Pollution; Pollution, environment geology; Protective coatings; Soil and sediments pollution; Soil Pollutants - analysis; Soils; Double hydroxides; Clay; Organic matter; Pollutant behavior; Surface layer; Geochemistry; Mobility; Desorption; Bioavailability; Precipitate; Soil pollution; EXAFS spectrometry; Heavy metal; Intercalation compound; Sorption; Trace element; Adsorption; Medium effect; Kaolinite; Nickel; Humic acid; Structural analysis

Incorporation of first row transition metals into stable surface precipitates can play an important role in reducing the bioavailability of these metals in neutral and alkaline soils. Organic coatings may interfere with this sorption mechanism by changing the surface characteristics and by masking t...