Key parameters for modelling Anammox process with N2O emissions

Jonfelt, ClaraUppsala University, Sweden,Department of Information Technology (author)

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.

TEKNIK OCH TEKNOLOGIER Industriell bioteknik Bioprocessteknik hsv//swe
ENGINEERING AND TECHNOLOGY Industrial Biotechnology Bioprocess Technology hsv//eng
ASMN
denitrification
greenhouse gases
sensitivity analysis
Energy- and Environmental Engineering
energi- och miljöteknik

Zambrano, JesúsMälardalens högskola,Framtidens energi(Swepub:mdh)jzo01 (author)
Lindblom, ErikStockholm Vatten, Sweden (author)
Nehrenheim, Emma,1979-Mälardalens högskola,Framtidens energi(Swepub:mdh)enm02 (author)
Uppsala University, SwedenDepartment of Information Technology (creator_code:org_t)

By the author/editor: Jonfelt, Clara; Zambrano, Jesús; Lindblom, Erik; Nehrenheim, Emma ...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Industrial Biote ...; and Bioprocess Techn ...

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