Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael W. Wismer0
Richard Woodling0
James C. Day0
Date of Patent
February 10, 2009
0Patent Application Number
111951080
Date Filed
August 2, 2005
0Patent Primary Examiner
Patent abstract
Wastewater streams from semiconductor processing operations are treated to reduce the concentration therein of one or more metal species to a satisfactory level. The disclosed systems and technique utilize complexing ion exchange media to treat the wastewater streams having a significant concentration of oxidizing species.
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