Integrated multi-zone wastewater treatment system and method
CA 2583752 C · Owner: Ogilvie, Michael J. · Inventors: Ogilvie, Michael J.; Yerushalmi, Laleh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wastewater treatment system has two separate but interlinked tanks containing four different zones, namely aerobic microaerophilic, anoxic and , anaerobic for the biological treatment of the wastewater as well as two , clarification zones and a filtration unit for separation of solids from liquid. The first tank contains the aerobic microaerophilic and anoxic zone , as well as a clarification zone while the second dank includes the anaerobic zone, a solid-liquid separation zone and a filtration unit. The aerobic zone is an airlift reactor that contains air diffusers at the bottom of the zone to introduce air into the zone. The air bubbles mix the liquid and its content of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 3, 2005 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.