Stabilization of chromium(VI) by hydroxysulfate green rust in chromium(VI)-contaminated soils

• Published in: Pedosphere Vol. 31; no. 4; pp. 645 - 657
• Main Authors: ALIDOKHT, Leila, OUSTAN, Shahin, KHATAEE, Alireza, NEYSHABURI, Mohammad R., REYHANITABAR, Adel
• Format: Journal Article
• Language: English
• Published: Beijing Elsevier Ltd 01.08.2021; Elsevier Science Ltd; Research Laboratory of Advanced Water and Wastewater Treatment Processes,Department of Applied Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz 51666-16471,Iran%Faculty of Agriculture,Department of Soil Science,University of Tabriz,Tabriz 51666-16471,Iran%Research Laboratory of Advanced Water and Wastewater Treatment Processes,Department of Applied Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz 51666-16471,Iran; Department of Environmental Engineering,Gebze Technical University,Gebze 41400,Turkey; Faculty of Agriculture,Department of Soil Science,University of Tabriz,Tabriz 51666-16471,Iran
• Subjects: batch system; birnessite; Chromium; Cr(III) oxidation; Environmental risk; Field capacity; Green rust; Iron; layered double hydroxide; Leaching; Manganese; Manganese oxides; Reduction; Rusting; Sediment pollution; Soil contamination; Soil pollution; Soil remediation; Soils; Stabilization; Trivalent chromium; batch system; layered double hydroxide; Cr(III) oxidation; reduction; soil remediation; birnessite; Cr(Ⅲ)oxidation

Chromium (Cr)-contaminated soils pose a great environmental risk, with high solubility and persistent leaching of Cr(VI). In this study, hydroxysulfate green rust (GRSO4), with the general formula Fe(II)4Fe(III)2(OH)12SO4·8H2O, was evaluated for its efficiency in Cr(VI) stabilization via Cr(VI) redu...