Control of n2o-emissions by aeration

Riccardo Boiocchi (Inventor), Gürkan Sin (Inventor), Krist V. Gernaey (Inventor)

Research output: Patent

97 Downloads (Pure)


Disclosed herein is a method and a system for controlling N2O emission from a water-based solution containing nitrifying organisms, wherein an input variable for a controller is the ratio between NO3 - produced and NH4 + oxidized as determined by measuring NO3 - and NH4 + concentration both at the inlet and at the outlet of the aerated section containing the water-based solution with nitrifying organisms and a scaled output variable is obtained from the controller as a function of said ratio by a non-linear algorithm, so that the oxygen input and/or the aeration time is varied based on an integration of the deviations of said output variable.
Original languageEnglish
IPCC02F3/00; C02F3/02
Patent numberWO2017207011
Filing date07/12/2017
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date03/06/2016
Priority numberDK2016PA00331
Publication statusPublished - 2017


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