Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

Opatokun, Suraj Adebayo; López-Sabirón, Ana M.; Ferreira, Germán; Strezov, Vladimir

doi:10.3390/su9101804

Cited by 57 publications

(24 citation statements)

References 30 publications

(40 reference statements)

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“…[ 36 ] They estimated LCOE for two AD+P configurations to be $60 and $180 MWh −1 . LCA emissions for AD+P were taken from a study by Opatokun et al [ 37 ] Their study evaluated the emissions of a stand‐alone AD+P system and an AD+P system integrated with a pyrolysis unit. LCA emissions for these systems varied between −760 and −125 g CO 2,eq kg −1 of food (from −50 to −8.4 g CO 2,eq MJ −1 ).…”

Section: Methodsmentioning

confidence: 99%

Negative Emission Energy Production Technologies: A Techno‐Economic and Life Cycle Analyses Review

Wright

2019

Energy Tech

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Negative emission technologies (NETs) are of growing importance for society to meet the atmospheric carbon levels required to maintain global temperatures under sustainable limits. A wide range of NETs have been proposed, but there are limited NET assessments that integrate life cycle analysis (LCA) and techno‐economic analysis (TEA). This Review gathers NET TEA/LCA findings and compares their costs and greenhouse gas emissions. Eight different NET‐producing transportation fuels and power‐generation technologies are considered: anaerobic digestion (lignocellulosic), fermentation, torrefaction, combustion, fast pyrolysis, gasification, and hydrothermal liquefaction. Most of these technologies sequester carbon either as carbon dioxide or as biochar. Some are carbon negative by virtue of avoided or displaced emissions. Overall, results indicate that NET energy production costs range between $20 and $80 GJ−1 and have emissions from −400 to 100 kg CO2,eq GJ−1. These results suggest that there are potential tradeoffs to consider when developing NETs. These results also show that future TEA/LCA studies of NETs are needed to decrease their uncertainty and improve their technology readiness level.

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Section: Methodsmentioning

confidence: 99%

Negative Emission Energy Production Technologies: A Techno‐Economic and Life Cycle Analyses Review

Wright

2019

Energy Tech

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“…Overall, LCA is useful for analyzing the environmental impact caused by any type of process, service, or product [30] and is widely used by the authors in previous studies [31][32][33]. In other words, LCA studies cover the environmental aspects and potential impacts throughout a product's life (i.e., cradle-to-grave), from raw material acquisition, production and use phases, to waste management.…”

Section: Lca Methodologymentioning

confidence: 99%

Implementation of PEF Treatment at Real-Scale Tomatoes Processing Considering LCA Methodology as an Innovation Strategy in the Agri-Food Sector

et al. 2018

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In Europe, science and innovation are boosting the agri-food sector and, in parallel, are helping to decrease greenhouse gas emissions (GHG) and European dependency on non-renewable resources. Currently, it is well-known that this sector contributes to the consumption of energy and material resources, causing significant environmental impacts that require a complex and comprehensive environmental evaluation in order to manage them effectively. This becomes even more complicated when new technologies are reaching the level of technological maturity needed to be installed in the production lines. To address this scientific challenge, the life cycle assessment (LCA) has been used in this paper to evaluate the potential of pulsed electric fields (PEF) technology at an industrial scale to facilitate the steam peeling of tomato fruits. Considering the thermo-physical peeling stage, the LCA has shown that PEF technology is environmentally friendly, because when PEF technology is applied, all the considered environmental indicators improve between 17% and 20%.

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“…The evaluation of performance under different configurations and types of organic materials has been studied by González-Arias et al [ 156 , 157 ] and Ghysels et al [ 158 ] analyzing the global process performance of digestate pyrolysis and co-pyrolysis with lignocellulosic biomass. Life cycle analysis has also been applied to the integrated approach of digestion and pyrolysis as a treatment option for waste management [ 159 ], indicating a higher conversion rate of the raw material to energy [ 160 ]. In fact, current wastewater treatment plants (WWTPs), where anaerobic digestion is widely applied, can be transformed into a treatment center for energy production.…”

Section: Technical and Economic Feasibility Of Anaerobic Digestionmentioning

confidence: 99%

Anaerobic Digestion for Producing Renewable Energy—The Evolution of This Technology in a New Uncertain Scenario

Arenas

Pesantes

Carpio

et al. 2021

Entropy

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Anaerobic digestion is a well-known technology with wide application in the treatment of high-strength organic wastes. The economic feasibility of this type of installation is usually attained thanks to the availability of fiscal incentives. In this review, an analysis of the different factors associated with this biological treatment and a description of alternatives available in literature for increasing performance of the process were provided. The possible integration of this process into a biorefinery as a way for producing energy and chemical products from the conversion of wastes and biomass also analyzed. The future outlook of anaerobic digestion will be closely linked to circular economy principles. Therefore, this technology should be properly integrated into any production system where energy can be recovered from organics. Digestion can play a major role in any transformation process where by-products need further stabilization or it can be the central core of any waste treatment process, modifying the current scheme by a concatenation of several activities with the aim of increasing the efficiency of the conversion. Thus, current plants dedicated to the treatment of wastewaters, animal manures, or food wastes can become specialized centers for producing bio-energy and green chemicals. However, high installation costs, feedstock dispersion and market distortions were recognized as the main parameters negatively affecting these alternatives.

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Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

Cited by 57 publications

References 30 publications

Negative Emission Energy Production Technologies: A Techno‐Economic and Life Cycle Analyses Review

Negative Emission Energy Production Technologies: A Techno‐Economic and Life Cycle Analyses Review

Implementation of PEF Treatment at Real-Scale Tomatoes Processing Considering LCA Methodology as an Innovation Strategy in the Agri-Food Sector

Anaerobic Digestion for Producing Renewable Energy—The Evolution of This Technology in a New Uncertain Scenario

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