Biogas Production from Food Residues—The Role of Trace Metals and Co-Digestion with Primary Sludge

Habagil, Moshe; Keucken, Alexander; Horváth, Ilona Sárvári

doi:10.3390/environments7060042

Cited by 37 publications

(12 citation statements)

References 29 publications

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“…Finally, technological barriers rely on to lacking proven technologies to implement CE. In fact, most of companies still have limited circular designs [11], lack ability to deliver high quality manufactured products with circular process [9] or to find a beneficial solution for the utilization of material residues [13]. In addition, there are too few large-scale demonstration projects and lack of data on CE impacts [10].…”

Section: Introductionmentioning

confidence: 99%

Analyzing Technical and Organizational Changes in Circular Economy (CE) Implementation with a TOE Framework: Insights from a CE Project of Kamouraska (Quebec)

2022

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Circular economy (CE) enhances the integration of environmental issues into business practices. It appears as an opportunity to improve the environmental performance of stakeholders involved in its implementation. But CE requires technical and organizational changes in the practices of stakeholders to address some issues. The adoption of these changes involves a complex process with depends on multiple factors. Mobilizing Technology-Organization-Environment (TOE) framework, this paper aims to underline changes in CE implementation and their determining factors. Our analysis of data from 36 stakeholders of a CE project of Kamouraska (Quebec) underscores a weak influence of technological factors. Changes refer more to organizational resources, internal stakeholders, government regulation, geographical and social proximity, etc. In addition, the results show a causal relationship between different factors, which requires a systemic perspective on CE.

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Section: Introductionmentioning

confidence: 99%

Analyzing Technical and Organizational Changes in Circular Economy (CE) Implementation with a TOE Framework: Insights from a CE Project of Kamouraska (Quebec)

2022

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“…Consequently, an unusable product must be recycled as much as possible and energy must be obtained from the disposal of non-recyclable parts, by creating new synergies with the supply chain of the same and other products (e.g. Habagil et al, 2020 ; Yuan et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

An analysis of design strategies for circular economy through life cycle assessment

Spreafico

2022

Environ Monit Assess

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The goal of pursuing the circular economy (CE) is spreading more and more in industry, also driven by the introduction of new regulations, considerably affecting product design. However, a quantitative and rigorous evaluation of the environmental impacts of the results obtained by different design strategies used to implementing CE is missing in the literature. Those available only evaluate certain aspects of the life cycle of few products, belonging to specific application fields, in a qualitative way or they refer only to the global warming potential. This study provides a quantitative assessment of the environmental impacts reductions arising from the application of some common design strategies for implementing different CE options (e.g. reuse, waste to energy, remanufacturing), by using some standard indicators. The results were obtained by manually analysing 156 selected case studies of comparative life cycle assessment (LCA), extracted from 136 scientific articles. In them, the environmental impacts of design solutions for CE are compared with those of other solutions were wastes are not exploited. The obtained results have been used to evaluate the different design strategies for CE and to hierarchize them based on environmental sustainability of the solutions associated with them. In addition, an economic evaluation of the strategies, based on the life cycle costing methodology and exploiting the data available in the same articles, was also provided. Among the main achievements, it was found that the hierarchy of the CE options, pursued by the design strategies, to improve environmental sustainability is different from that provided by other studies. In addition, the environmental benefits associated with the different CE options strictly depend by the applied design strategies and the considered products. Graphical abstract

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“…They reported significant improvements in volatile solid removal when the content of vegetable wastes in the mixture was increased and also when the feed's solid content was lowered. Similarly, Habagil et al [35] reported variations in biogas yields based on the organic load applied to the reactor and the C/N ratio, which was changed by altering the mixture proportion of food wastes and primary sludge. However, trying to set a specific C/N ratio for industrial digesters in an attempt to extrapolate results is not always easy.…”

Section: The Effect Of Organic Loading On Digestion Performancementioning

confidence: 96%

High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance

et al. 2021

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High-solid and solid-state anaerobic digestion are technologies capable of achieving high reactor productivity. The high organic load admissible for this type of configuration makes these technologies an ideal ally in the conversion of waste into bioenergy. However, there are still several factors associated with these technologies that result in low performance. The economic model based on a linear approach is unsustainable, and changes leading to the development of a low-carbon model with a high degree of circularity are necessary. Digestion technology may represent a key driver leading these changes but it is undeniable that the profitability of these plants needs to be increased. In the present review, the digestion process under high-solid-content configurations is analyzed and the different strategies for increasing reactor productivity that have been studied in recent years are described. Percolating reactor configurations and the use of low-cost adsorbents, nanoparticles and micro-aeration seem the most suitable approaches to increase volumetric production and reduce initial capital investment costs.

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Biogas Production from Food Residues—The Role of Trace Metals and Co-Digestion with Primary Sludge

Cited by 37 publications

References 29 publications

Analyzing Technical and Organizational Changes in Circular Economy (CE) Implementation with a TOE Framework: Insights from a CE Project of Kamouraska (Quebec)

Analyzing Technical and Organizational Changes in Circular Economy (CE) Implementation with a TOE Framework: Insights from a CE Project of Kamouraska (Quebec)

An analysis of design strategies for circular economy through life cycle assessment

High-Solid Anaerobic Digestion: Reviewing Strategies for Increasing Reactor Performance

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