Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-12-18
2007-12-18
Upton, Christopher (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S617000, C210S630000, C210S150000, C210S903000
Reexamination Certificate
active
11168706
ABSTRACT:
A method for treating wastewater. The method comprises: providing a first dose of air to aerate a medium bed; supplying a dose of wastewater to the aerated medium bed; allowing nitrification of the wastewater to occur; allowing denitrification to occur; and providing a subsequent dose of air to the medium bed. A combined aerobic and anaerobic treatment apparatus. The apparatus comprises: a medium bed; a wastewater conduit in fluid communication with the medium bed; an air conduit in fluid communication with the medium bed; and where the combined aerobic and anaerobic treatment apparatus is configured to first allow a dose of wastewater in the medium bed to undergo a nitrification process which is generally aerobic, and then second allow the dose of wastewater in the medium bed to undergo a denitrification process which is generally anaerobic. An apparatus for treating wastewater. The apparatus comprises: means for providing a first dose of air to aerate a medium bed; means for supplying a dose of wastewater to the aerated medium bed; means for allowing nitrification of the wastewater to occur; means for allowing denitrification to occur; and means for providing a subsequent dose of air to the medium bed.
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Blake Michael A.
Upton Christopher
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