RT Journal Article
T1 Performance and microbial features of the partial nitritation-anammox process treating fish canning wastewater with variable salt concentrations
A1 Val del Río, Ángeles
A1 Pichel Gutiérrez, Andrés
A1 Fernández González, Nuria
A1 Pedrouso Fuentes, Alba
A1 Fra Vázquez, Andrea
A1 Morales Pereira, Nicolás
A1 Méndez Pampín, Ramón José
A1 Campos Gómez, José Luis
A1 Mosquera Corral, Anuska
K1 Autotrophic
K1 Denitrification
K1 Fish canning
K1 Granule
K1 Nitrogen
AB The partial nitritation-anammox (PN-AMX) process applied to wastewaters with high NaCl concentration was studied until now using simulated media, without considering the effect of organic matter concentration and the shift in microbial populations. This research work presents results on the application of this process to the treatment of saline industrial wastewater. Obtained results indicated that the PN-AMX process has the capability to recover its initial activity after a sudden/acute salt inhibition event (up to 16 g NaCl/L). With a progressive salt concentration increase for 150 days, the PN-AMX process was able to remove the 80% of the nitrogen at 7–9 g NaCl/L. The microbiological data indicated that NaCl and ammonia concentrations and temperature are important factors shaping PN-AMX communities. Thus, the NOB abundance (Nitrospira) decreases with the increase of the salt concentration, while heterotrophic denitrifiers are able to outcompete anammox after a peak of organic matter in the feeding
PB Elsevier
SN 0301-4797
YR 2018
FD 2018-02-15
LK http://hdl.handle.net/10347/16654
UL http://hdl.handle.net/10347/16654
LA eng
NO Val del Rio, A., Pichel, A., Fernandez-Gonzalez, N., Pedrouso, A., Fra-Vázquez, A., & Morales, N. et al. (2018). Performance and microbial features of the partial nitritation-anammox process treating fish canning wastewater with variable salt concentrations. Journal Of Environmental Management, 208, 112-121. http://dx.doi.org/10.1016/j.jenvman.2017.12.007
NO This work was supported by the Spanish Government through GRANDSEA (CTM2014-55397-JIN) and FISHPOL (CTQ2014-55021-R) projects co-funded by FEDER, and the Chilean Government (CONICYT/FONDAP/15130015). The authors from the USC belong to CRETUS (AGRUP2015/02) and the Galician Competitive Research Group (GRC 2013-032), programs co-funded by FEDER
DS Minerva
RD 22 abr 2026