Role of Ferrate(IV) and Ferrate(V) in Activating Ferrate(VI) by Calcium Sulfite for Enhanced Oxidation of Organic Contaminants

• Published in: Environmental science & technology Vol. 53; no. 2; pp. 894 - 902
• Main Authors: Shao, Binbin, Dong, Hongyu, Sun, Bo, Guan, Xiaohong
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 15.01.2019
• Subjects: Anions; Antibiotics; Calcium; Contaminants; Contamination; drugs; Hydrogen peroxide; hydroxyl radicals; Iron; Organic contaminants; Oxidants; Oxidation; Oxidizing agents; Pesticides; Pollutant removal; pollutants; pollution control; Species; Sulfite; sulfites; Water pollution; Water treatment

Although the Fe­(VI)–sulfite process has shown great potential for the rapid removal of organic contaminants, the major active oxidants (Fe­(IV)/Fe­(V) versus SO4 •–/•OH) involved in this process are still under debate. By employing sparingly soluble CaSO3 as a slow-releasing source of SO3 2–, this...