Shortcut nitrification-denitrification by means of autochthonous halophilic biomass in an SBR treating fish-canning wastewater
- Authors: Capodici, M.; Corsino, S.; Torregrossa, M.; Viviani, G.
- Publication year: 2018
- Type: Articolo in rivista (Articolo in rivista)
- Key words: Autochthonous-halophilic bacteria; Fish-canning wastewater; Saline wastewater; SBR; Shortcut nitrification-denitrification; Environmental Engineering; Waste Management and Disposal; Management, Monitoring, Policy and Law
Autochthonous halophilic biomass was cultivated in a sequencing batch reactor (SBR) aimed at analyzing the potential use of autochthonous halophilic activated sludge in treating saline industrial wastewater. Despite the high salt concentration (30 g NaCl Lâ1), biological oxygen demand (BOD) and total suspended solids (TSS), removal efficiencies were higher than 90%. More than 95% of the nitrogen was removed via a shortcut nitrification-denitrification process. Both the autotrophic and heterotrophic biomass samples exhibited high biological activity. The use of autochthonous halophilic biomass led to high-quality effluent and helped to manage the issues related to nitrogen removal in saline wastewater treatment.