Biological oxidation of ferrous iron to ferric (which is highly insoluble above pH 2.5) is the other major metal-immobilising process that occurs in aerobic wetlands and bioreactors, as described in Sections 4.2 and 4.6.
Biological oxidation of ferrous iron to ferric (whichis highly insoluble above pH 2.5) is the other majormetal-immobilising process that occurs in aerobicwetlands and bioreactors, as described in Sections 4.2and 4.6.