Co-digestion and food waste AD: BioWin modelling to optimise OLR and HRT on the Avonmouth food waste digesters

Gergely Forgacs, Martin Smyth, Ian Law, Thomas Arnot

Research output: Contribution to conferencePaper

Abstract

In this study, a model for anaerobic digestion of food waste was developed using BioWin 4.1 simulator software. Substrate characteristics were determined by laboratory analysis and steady state simulation. Kinetic parameters were identified by running dynamic simulations. Input data for calibration and validation was collected from a large-scale food waste digestion plant in the UK. The model predictions showed a high degree of agreement in terms of biogas production, COD and VS reduction, and ammonia and VFAs concentrations. The model was used to investigate how the process responds to various changes in the operating conditions including increasing organic loading rate (OLR) or decreasing HRT. The results show that the current 20-25 days HRT could be decreased by 10% without risking process stability and reducing the efficiency of the anaerobic digestion, and hence throughput and biogas production could be increased.
Original languageEnglish
Publication statusPublished - 20 Nov 2017
EventEUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE - Royal Armouries, Leeds, UK United Kingdom
Duration: 20 Nov 201721 Nov 2017
http://european-biosolids.com/

Conference

ConferenceEUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE
CountryUK United Kingdom
CityLeeds
Period20/11/1721/11/17
Internet address

Keywords

  • Anaerobic digestion
  • Food waste
  • Simulation and Modeling
  • Renewable Energy

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering

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    Forgacs, G., Smyth, M., Law, I., & Arnot, T. (2017). Co-digestion and food waste AD: BioWin modelling to optimise OLR and HRT on the Avonmouth food waste digesters. Paper presented at EUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE, Leeds, UK United Kingdom.