Effect of natural organic matter on arsenic mobilization from mine tailings

• Published in: Journal of hazardous materials Vol. 168; no. 2; pp. 721 - 726
• Main Authors: Wang, Suiling, Mulligan, Catherine N.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.09.2009; Elsevier
• Subjects: Adsorption; Applied sciences; Arsenic; Arsenic - isolation & purification; Chemical engineering; Electrophoresis, Capillary; Environmental Restoration and Remediation; Exact sciences and technology; Hydrogen-Ion Concentration; Microscopy, Electron, Scanning; Mine tailings; Mining; Mobilization isotherm; Natural organic matter; Other industrial wastes. Sewage sludge; Pollution; Selective sequential extraction; Wastes; X-Ray Diffraction; Mine tailings; Arsenic; Selective sequential extraction; Mobilization isotherm; Natural organic matter; Organic matter; Electrostatic interaction; Mobility; Sequential extraction; Modeling; Tailings; Sorption; Mobilization; Industrial waste; Adsorption; pH; Electrophoresis; Mining waste

This research study was to elucidate the mechanisms of arsenic mobilization from mine tailings in the presence of natural organic matter (NOM). Humic acid (HA) was chosen as a model for NOM. The introduction of the HA at a low mass ratio (below 2 mg added HA/g mine tailings) inhibited arsenic mobili...