Liquid purification or separation – With gas separator
Reexamination Certificate
2006-09-12
2006-09-12
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
With gas separator
C210S198200, C210S263000, C210S913000
Reexamination Certificate
active
07105087
ABSTRACT:
Systems and methods are provided for the removal and disposal of chromium form an aqueous medium. The systems and methods include the removal of chromium from a source by contact with either natural or synthetic zeolite that has been modified with a ferrous ion or other like substance. The spent zeolite is disposed of and replaced with freshly modified zeolite. In some cases the systems and methods are performed under de-oxidizing conditions.
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Dorsey & Whitney LLP
Therkorn Ernest G.
WRT International LLC
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