Method and system for treating oxidized contaminant-containing matrix

摘要

A new and useful way of treating oxidized-contaminant-containing water, soil, rock, other geological or non-geological matrix formation (such as a landfill) is provided. A bioreactor is provided that includes elemental sulfur and a microbial population capable of oxidizing sulfur and reducing pertechnate (TcO₄^-), arsenate (H₂AsO₄^-), chromate (CrO₄^2-), bromate (BrO₃^-), chlorite (ClO₂^-), chlorate (ClO₃^-), perchlorate (ClO₄^-), and uranium(VI) oxide, with biological reduction of these oxidized contaminants in the matrix containing the oxidized contaminant performed by the bioreactor, with the elemental sulfur as the electron donor.