Originally published on Wed August 1, 2012 2:11 pm
Updated 1:20 p.m. August 1 with reopening of smelter
The Doe Run Peru smelter in La Oroya, which had been clsoed due to financial and environmental compliance issues since 2009, resumed zinc processing operations over the weekend.
Peru's Minister of Energy and Mines, Jorge Merino Tafur, is reported to have said that lead smelting would also resume in the not too distant future. Restarting copper production would likely take longer, since that would require building a plant to control sulfuric acid emissions.
Doe Run Peru is owned by the Renco Group, which also owns the St. Louis-based Doe Run Resources Corporation. The metal smelting companies in Missouri and Peru have operated independently since 2007.
MU professor emeritus of anthropology Robert Benfer has discovered rare animal-shaped mounds in Peru. The mounds are three to five thousand years old.
MU’s spokesperson Tim Wall says this research is great contribution for the university.
“This is groundbreaking research by an MU anthropologist," said Wall, "who has found not only some of the oldest structures in the western atmosphere but some of the oldest structures on the planet. These are as old as like the pyramids.”