Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-10-02
2007-10-02
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S903000, C210S747300, C210S170080
Reexamination Certificate
active
10960903
ABSTRACT:
The present invention comprises a system and methodology for denitrification using constructed wetlands. The constructed wetlands of the present invention can be effectively applied as a wastewater point source treatment technology to any high total dissolved solids (e.g. sulfites and sulfates), carbon deficient wastewater stream for nitrate control. Pollutants are removed from the stream via a number of processes including plant uptake, volatilization, filtration and biological reduction. The present system and methodology offers an ability to reduce outflow stream nitrate concentrations in a cost-effective manner with minimal capital investment.
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Miller John D.
Shah Piyush S.
Shockley Chad E.
Barrett Glenn T.
ExxonMobil Research and Engineering Company
Prince Fred G.
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