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

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 conference › Paper › peer-review

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 language	English
Publication status	Published - 20 Nov 2017
Event	EUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE - Royal Armouries, Leeds, UK United Kingdom Duration: 20 Nov 2017 → 21 Nov 2017 http://european-biosolids.com/

Conference

Conference	EUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE
Country/Territory	UK United Kingdom
City	Leeds
Period	20/11/17 → 21/11/17
Internet address	http://european-biosolids.com/

Keywords

Anaerobic digestion
Food waste
Simulation and Modeling
Renewable Energy

ASJC Scopus subject areas

Bioengineering
Environmental Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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

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.",

keywords = "Anaerobic digestion, Food waste, Simulation and Modeling, Renewable Energy",

author = "Gergely Forgacs and Martin Smyth and Ian Law and Thomas Arnot",

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TY - CONF

T1 - Co-digestion and food waste AD: BioWin modelling to optimise OLR and HRT on the Avonmouth food waste digesters

AU - Forgacs, Gergely

AU - Smyth, Martin

AU - Law, Ian

AU - Arnot, Thomas

PY - 2017/11/20

Y1 - 2017/11/20

N2 - 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.

AB - 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.

KW - Anaerobic digestion

KW - Food waste

KW - Simulation and Modeling

KW - Renewable Energy

UR - http://european-biosolids.com/

M3 - Paper

T2 - EUROPEAN BIOSOLIDS AND ORGANIC RESOURCES CONFERENCE

Y2 - 20 November 2017 through 21 November 2017

ER -

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

Abstract

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

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