RT Journal Article
T1 Mainstream anammox reactor performance treating municipal wastewater and batch study of temperature, pH and organic matter concentration cross-effects
A1 Pedrouso Fuentes, Alba
A1 Val del Río, Ángeles
A1 Morales Pereira, Nicolás
A1 Vázquez Padín, José Ramón
A1 Campos Gómez, José Luis
A1 Mosquera Corral, Anuska
K1 Alkalinity
K1 Autotrophic nitrogen removal
K1 Inorganic carbon
K1 Mainstream
K1 Low temperature
K1 Specific anammox activity
AB The anammox process is an energy efficient promising alternative to biologically remove the nitrogen. Thus, a 5-L anammox granular reactor was inoculated with sludge coming from a sidestream partial nitritation and anammox reactor (>200 mg TN/L and 30 °C) and it was directly subjected to 15 ± 1 °C treating mimicked municipal wastewater (50 mg TN/L). Results indicated that an acclimation period (commonly used) to progressive reach the mainstream conditions is not needed, shortening the start-up periods. The long-term anammox process stability was proved to treat synthetic wastewater with decreasing alkalinities and nitritified primary settled municipal wastewater. The low pH values (6.2 ± 0.1) of the municipal wastewater fed did not affect the process stability. Residual organic matter concentrations augmented the nitrogen removal efficiency from 80 % (with the synthetic medium) to 92 % achieving effluent concentrations below 10 mg TN/L. Finally, the effect of pH (6–8), temperature (15–30 °C) and organic matter concentration (0–75 mg TOC/L) over the specific anammox activity (SAAMX) was evaluated at short-term. pH and temperature and their interactions exerted significant influence on the SAAMX value while the TOC concentrations itself did not significantly change the SAAMX
PB Elsevier
YR 2020
FD 2020
LK http://hdl.handle.net/10347/27908
UL http://hdl.handle.net/10347/27908
LA eng
NO Pedrouso, A., Val del Rio, A., Morales, N., Vazquez-Padin, J. R., Campos, J. L., & Mosquera-Corral, A. (2021). Mainstream anammox reactor performance treating municipal wastewater and batch study of temperature, pH and organic matter concentration cross-effects. Process Safety and Environmental Protection, 145, 195-202. doi:10.1016/j.psep.2020.07.052
NO This work was done within the Pioneer_STP (ID 199(UE)/PCIN-2015-022(AEI)) project funded by the WaterWorks2014 Cofunded Call (Water JPI/Horizon 2020). The Spanish Government (AEI) also financed this research by the TREASURE (CTQ2017-83225-C2-1-R). The authors from the USC belong to CRETUS Strategic Partnership (ED431E 2018/01) and to the Galician Competitive Research Group (GRC-ED431C 2017/29). Both programs co-funded by FEDER (EU) funds
DS Minerva
RD 29 abr 2026