Alexco Patents (I of II)
Joseph Harrington is the inventor of patented processes for the restoration of groundwater quality affected by soluble metals liberated by mining, milling or other processing activities. Mr. Harrington is a pioneer in the field of anaerobic treatment and stabilization of metals. Unique contributions of Mr. Harrington include in-situ encapsulation technologies whereby soluble toxic metals are geochemically encapsulated by more benign minerals within the groundwater aquifer or within and downgradient of sources of contamination such as within a pit lake (such as in the sediments layer), tailings impoundment, heap leach pad or waste storage area. Other technologies developed by Mr Harrington include gas-flooding and gas-tracer technologies for the reduction and prevention of acid rock drainage from underground mines and waste rock storage areas.
Projects where Mr. Harrington's technologies have been implemented have won numerous awards. A partial listing of these projects include the Kennecott Uranium pit lake in the Great Basin of Wyoming, where Mr. Harrington implemented treatment technologies that successfully achieved compliance with soluble metals reclamation standards in the open pit lake left after cessation of mining. This site has achieved bond release after 5 years of monitoring. During the monitoring period (in June 2001) the State of Wyoming presented Kennecott with the award for outstanding excellence in Reclamation, attributing the award substantially due to the project performance and technology implemented by Mr. Harrington with Kennecott.
Another open pit lake containing strongly acidic heavy metal polluted waters at the abandoned Gilt Edge Mine Superfund Site was treated by Mr. Harrington in 2001, and this project was awarded the American Academy of Environmental Engineering (AAEE) Excellence in Environmental Engineering (E3) honor award for the best small project in the United States for 2006 at the National Press Club May 3, 2006.
Awards for these technologies have been presented to Mr. Harrington's mining clients in Idaho, Washington, Oregon, Montana, South Dakota, Colorado, California and Nevada.
Mr Harrington graduated summa cum laude from the University of Idaho in 1996 with majors in Chemistry and Microbiology and completed his Master's work at the University of Idaho in 1998 in Metallurgical Engineering. He has published more than ten scholarly articles and eight patents issued in the United States, Canada and throughout the world. Mr. Harrington also served from 2002 - 2006 as the Vice President of ARCADIS Mining and Metals Practice within the Guaranteed Business Solutions Group.
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