A method is described to decompose perchlorate in a FeCl.sub.3 /HCl aqueous solution such as would be used to regenerate an anion exchange resin used to remove perchlorate. The solution is mixed with a reducing agent, preferably an organic alcohol and/or ferrous chloride, and can be heated to accelerate the decomposition of perchlorate. Lower temperatures may be employed if a catalyst is added.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
This invention was made with United States Government support under Contract No. DE-AC05-00OR22725 between the United States Department of Energy and UT-BATTELLE, LLC and the United States Government has certain rights in this invention.