Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Starting-up an anaerobic hybrid filter for the fermentation of wastewater from food industry

  • 107 Accesses

  • 8 Citations

Abstract

 The wastewater from a food processing factory, characterised by fluctuations of flow rate, organic strength, and pH, were originally treated by a traditional suspended-biomass digester working at about 25 °C. In order to improve the digester efficiency, either in terms of degradation ability or biogas production yield, a set of tests has been carried out on laboratory scale, whose results indicated the way to correctly transform it into an anaerobic hybrid filter. The unacceptable conversion yield of organic substances into biogas observed in the original system has been improved by the presence of the filling medium, due to a marked increase in biomass retention time.

The start-up of anaerobic digestion has been studied in this reactor at two different temperatures (25 and 30 °C), in order to evaluate the possible advantage of heating the system, simulating continuous variations in feed strength, pH, and composition.

This is a preview of subscription content, log in to check access.

Author information

Additional information

Received: 26 March 1996

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Berardino, S., Bersi, R., Converti, A. et al. Starting-up an anaerobic hybrid filter for the fermentation of wastewater from food industry. Bioprocess Engineering 16, 65–70 (1997). https://doi.org/10.1007/s004490050289

Download citation

Keywords

  • Biomass
  • Wastewater
  • Fermentation
  • Biogas
  • Anaerobic Digestion