Integrating food waste management into urban wastewater treatment: Economic and environmental impacts

Dafne Crutchik, Javiera Barboza, José Ramón Vázquez-Padín, Alba Pedrouso, Ángeles Val del Río, Anuska Mosquera-Corral, José Luis Campos

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Food waste is the main component of municipal solid waste (MSW) and its sustainable management is a global challenge. Co-treatment of food waste and urban wastewater in wastewater treatment plants (WWTPs) could be a plausible management strategy to reduce the MSW amount that is disposed in landfills, while converting its organic fraction into biogas in the WWTP. However, the increased organic load in the wastewater influent would impact the capital and operating costs of the WWTP, mainly due to the increase in sludge production. In this work, different scenarios for co-treatment of food waste and wastewater were studied from both economic and environmental perspectives. These scenarios were designed based on different sludge disposal and management options. The results showed that the co-treatment of food waste and wastewater would be more environmentally friendly than their separate treatment, but its economic feasibility strongly depends on the ratio between the management costs of MSW and sewage sludge.

Original languageEnglish
Article number118517
JournalJournal of Environmental Management
Volume345
DOIs
StatePublished - 1 Nov 2023
Externally publishedYes

Keywords

  • Anaerobic digestion
  • CO-Eq emissions
  • Energy
  • Organic waste
  • Sludge

Fingerprint

Dive into the research topics of 'Integrating food waste management into urban wastewater treatment: Economic and environmental impacts'. Together they form a unique fingerprint.

Cite this