Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Reexamination Certificate
2007-09-25
2007-09-25
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
C073S019100, C073S863710, C210S709000, C210S718000, C210S743000, C210S750000, C210S916000, C422S003000, C422S005000, C436S121000, C436S177000
Reexamination Certificate
active
10968434
ABSTRACT:
An apparatus and method of determining chemical dosage required to reduce sulfides in wastewater includes providing a headspace apart from the wastewater. The temperature of the wastewater and the concentration of sulfide gas in the headspace are measured. Dissolved hydrogen sulfide gas concentrations in the wastewater are calculated from the temperature of the wastewater and the concentration of sulfide gas in said headspace. When pH is monitored, dissolved sulfide concentrations can be calculated.
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Hruskoci Peter A.
Van Dyke, Gardner, Linn & Burkhardt, LLP
Waitaki Research Corporation
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