Abstract
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 language | English |
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| IPC | C02F3/00; C02F3/02 |
| Patent number | WO2017207011 |
| Filing date | 07/12/2017 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 03/06/2016 |
| Priority number | DK2016PA00331 |
| Publication status | Published - 2017 |