RT Journal Article
T1 Performance of partial nitritation-anammox processes at mainstream conditions in an IFAS system
A1 Pedrouso Fuentes, Alba
A1 Trela, Jozef
A1 Val del Río, Ángeles
A1 Mosquera Corral, Anuska
A1 Plaza, Elzbieta
K1 Anammox
K1 Autotrophic nitrogen removal
K1 Integrated fixed film activated sludge
K1 Mainstream
K1 Nitritation
AB The partial nitritation-anammox processes implementation in the main line of wastewater treatment plants would lead them closer to the energy autarky. With this purpose, an integrated fixed film activated sludge (IFAS) reactor was operated at pilot scale. Efficient nitrogen removal (72 ± 11 %) was achieved for anaerobically pre-treated municipal wastewater at low temperature (21 - 15 ºC), with a nitrogen removal rate of 37 ± 3 g N/(m3·d) at 15 °C. The ammonium oxidizing bacteria were more abundant in the activated sludge, while anammox bacteria were primarily located in biofilm attached onto the carriers surface. Nitrite oxidizing bacteria (NOB) activity was similar between both fractions and its specific activity decreased more than that of other populations when the operating temperature was reduced. Furthermore, the IFAS operational strategy (aerobic/anoxic periods) allowed an efficient NOB activity suppression inside the reactor, which accounted only for the 10 - 20 % of the maximum potential activity
PB Elsevier
SN 0301-4797
YR 2019
FD 2019
LK http://hdl.handle.net/10347/19903
UL http://hdl.handle.net/10347/19903
LA eng
NO Pedrouso, A., Trela, J., Val del Rio, A., Mosquera-Corral, A., & Plaza, E. (2019). Performance of partial nitritation-anammox processes at mainstream conditions in an IFAS system. Journal Of Environmental Management, 250, 109538. doi: 10.1016/j.jenvman.2019.109538
NO This work was done within the Pioneer_STP (ID 199 (UE)/PCIN-2015-022 (AEI)/FR-2016/0002(Formas)) project funded by the WaterWorks2014 Cofunded Call (Water JPI/Horizon 2020). A. Pedrouso also want to thank the support by a STSM Grant from COST Action Water_2020 (COST-STSM-ES1202-010216-076068) for her research stay at KTH in Sweden. The authors from the USC belong to CRETUS Strategic Partnership (ED418B 2017/075) and to the Galician Competitive Research Group (GRC-ED431C 2017/29). All these programs are co-funded by FEDER (UE). The authors from KTH belong to VA Mälardalen Cluster funded by Swedish Water Development (SVU). The authors would like to acknowledge the staff at Hammarby Sjöstadsverk, Stockholm (Swedish Water Innovation Center) and the Swedish Environmental Research Institute (IVL) for their support
DS Minerva
RD 24 abr 2026