Fig. 2From: Immobilization of Cr(VI) by sulphate green rust and sulphidized nanoscale zerovalent iron in sand media: batch and column studiesCr(VI) immobilization efficiency by GRSO4 in batch sand experiments at variable Cr(VI)/Fe(II) ratio and constant green rust concentration. Control reaction with sand only (no added green rust) is also shownBack to article page