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Expired Canadian patentCanada

Method and arrangement for processing nitrogen-concentrated effluents in a sequential fractionated cycle biological reactor

CA 2616624 C · Owner: Martin, Samuel · Inventors: Gonzalez Ospina, Adriana; Martin, Samuel

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention relates to a method for processing nitrogen-concentrated effluents by ammonia oxidation into nitrites followed by nitrite denitritation in a gaseous nitrogen in a sequential biological reactor (1) consisting in pouring a processable effluent volume in to the reactor by successive volume fractions in dividing the entire processing cycle into successive sub-cycles wherein each sub-cycle comprises a feeding phase an aeration phase for nitrification and an anoxia phase along which a carbon-containing source is introduced into the reactor for converting nitrites into nitrogen. The inventive method also consists in evaluating a nitrogenous volume charge in the effluent to be …

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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 July 27, 2006 and granted February 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 27, 2006
GrantedFebruary 4, 2014
Term endedJuly 27, 2026
Patent numberCA 2616624 C
Classification (IPC)C02F3/12 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 27, 2006Patent grantedFeb 4, 2014Term endedJuly 27, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.