Performance and microbial features of the partial nitritation-anammox process treating fish canning wastewater with variable salt concentrations

Angeles Val Del Rio; Andres Pichel; Nuria Fernandez-Gonzalez; Alba Pedrouso; Andrea Fra-Vázquez; Nicolas Morales; Ramon Mendez; Jose Luis Campos; Anuska Mosquera-Corral

doi:10.1016/j.jenvman.2017.12.007

Performance and microbial features of the partial nitritation-anammox process treating fish canning wastewater with variable salt concentrations

J Environ Manage. 2018 Feb 15:208:112-121. doi: 10.1016/j.jenvman.2017.12.007. Epub 2017 Dec 16.

Authors

Angeles Val Del Rio¹, Andres Pichel², Nuria Fernandez-Gonzalez³, Alba Pedrouso⁴, Andrea Fra-Vázquez⁵, Nicolas Morales⁶, Ramon Mendez⁷, Jose Luis Campos⁸, Anuska Mosquera-Corral⁹

Affiliations

¹ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: mangeles.val@usc.es.
² Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: andres.gutierrez.pichel@usc.es.
³ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: nuria.fernandez@usc.es.
⁴ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: alba.pedrouso@usc.es.
⁵ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: andrea.fra@usc.es.
⁶ Aqualia, Guillarei WWTP, Camino de la Veiga s/n, E-36720 Tui, Spain. Electronic address: nicolas.morales.pereira@fcc.es.
⁷ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: ramon.mendez.pampin@usc.es.
⁸ Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Avda Padre Hurtado 750, Viña del Mar, E- 2503500, Chile. Electronic address: jluis.campos@uai.cl.
⁹ Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, E- 15705 Santiago de Compostela, Spain. Electronic address: anuska.mosquera@usc.es.

PMID: 29253740
DOI: 10.1016/j.jenvman.2017.12.007

Abstract

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.

Keywords: Autotrophic; Denitrification; Fish canning; Granule; Nitrogen.

MeSH terms

Ammonia
Animals
Bioreactors*
Nitrogen
Sodium Chloride*
Wastewater*

Substances

Waste Water
Sodium Chloride
Ammonia
Nitrogen