Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Reexamination Certificate
2005-08-23
2005-08-23
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
C210S699000, C210S700000, C210S701000, C210S721000, C210S725000, C210S727000, C210S759000, C210S912000, C210S916000, C210S919000, C422S005000
Reexamination Certificate
active
06932909
ABSTRACT:
A method of treating mine drainage water including the step of adding a scale control agent to the mine drainage water and, optionally, adding an oxidizing agent to the mine drainage water and/or precipitating and settling the metals in their hydroxide form from the water. The treated water may be safely returned to the environment.
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Hruskoci Peter A.
Kroff Chemical Company, Inc.
Webb Ziesenheim & Logsdon Orkin & Hanson, P.C.
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