Arsenic Mobilization Is Enhanced by Thermal Transformation of Schwertmannite

• Published in: Environmental science & technology Vol. 50; no. 15; pp. 8010 - 8019
• Main Authors: Johnston, Scott G, Burton, Edward D, Moon, Ellen M
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 02.08.2016
• Subjects: Arsenic; biomineralization; crystal structure; Desorption; Environmental science; Ferric Compounds; fires; hematite; iron; Iron - chemistry; Nanocrystals; Oxidation-Reduction; particle size; seasonal wetlands; sulfates; surface area; temperature; Water Pollutants, Chemical; Water quality; Wetlands

Fires in iron-rich seasonal wetlands can thermally transform Fe­(III) minerals and alter their crystallinity. However, the fate of As associated with thermally transformed Fe­(III) minerals is unclear, as are the consequences for As mobilization during subsequent reflooding and reductive cycles. Her...