Stale Beer to Clean Up Contamination?

night_flyer writes: "Stale Beer may be used to clean up one of the worst superfund sites in the U.S. ... Now the question is, who leaves beer in the fridge long enough to go stale?" The site in question is a former zinc mine in Oklahoma which is full of toxic leavings, and has been on the EPA's Superfund hotlist for a few decades. A University of Tulsa professor named Tom Harris, who originally considered mollasses, is quoted as saying that "a wetlands treated with beer would be more effective in removing zinc and lead from runoff water than an untreated wetlands."