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Key parameters for modelling Anammox process with N2O emissions
Uppsala University, Sweden. (Department of Information Technology)
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-8034-4043
Stockholm Vatten, Sweden.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0003-3311-9465
2017 (English)In: French Federation of Biotechnology - Bioreactors Symposium 2017: Innovative approaches in bioreactors design and operation, France, 2017Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

In this paper, a sensitivity analysis and a calibration were applied to a recent published model used to replicate N2O emissions in an Anammox process of a moving-bed biofilm reactor (MBBR). The model used in this study was designed to replicate a one-stage nitrification-Anammox system in a MBBR at Hammarby-Sjöstad pilot plant (Stockholm, Sweden), whichtreats of anaerobic digestion liquor. The aeration was intermittently (45/15 minutes - on/off). During the aeration, a 1.5 mg/L DO set-point was set. Three main measurements wereobtained: NH4 in water, N2O in both water and gas phase.The sensitivity analysis was done via the one-at-a-time method, where one parameter at a timeis changed (in our case, 10%) from its nominal value and the model output is quantified. Next,the most sensitive parameters were used in the model calibration. Results indicate that the biofilm porosity (η [-]), biofilm density (ρ [gTS/m3]), maximum biofilmthickness (Lmax [mm]) and boundary layer thickness of the biofilm (L0 [μm]) were the mostsensitive parameters of the model. These parameters performed the model calibration.

Place, publisher, year, edition, pages
France, 2017.
Keywords [en]
ASMN, denitrification, greenhouse gases, sensitivity analysis
National Category
Bioprocess Technology
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-35272OAI: oai:DiVA.org:mdh-35272DiVA, id: diva2:1092180
Conference
French Federation of Biotechnology - Bioreactors Symposium 2017, Innovative approaches in bioreactors design and operation University Lille, May 15th-16th 2017, Villeneuve d'Ascq, France
Projects
CONAN
Funder
VINNOVA, 2015-02422Available from: 2017-05-01 Created: 2017-05-01 Last updated: 2018-09-19Bibliographically approved

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Zambrano, JesúsNehrenheim, Emma

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