How Circular Bio-Economy Can Be Adopted within the Agro-Industry in Denmark by Cascading and Coupling Biomass Residues

Rikke Lybæk*, Tyge Kjær

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


This paper investigates how to facilitate a green transition by use of biomass residues from the ago-industry in Denmark, exemplified through materials flow analysis (MFA) within the slaughterhouse industry. The proposed system suggests how circular bioeconomy can be addresses at the local level, by deploying internal circulation (IC) and anaerobic digestion (AD) biogas reactors digesting wastewater and biomass residues from the slaughterhouse industry, as well as the local community. Thus, by cascading and coupling activities, including supply of organic household waste and manure from the local community and agriculture, this paper shows how various environmental benefits can be achieved, as for example production of biogas substituting fossil fuel usage, reduction of waste generation and lower air emissions. The proposed system relies solely on local renewable resources being produced and re-used within a narrow geographic area, as opposed to the existing system, limiting energy distribution losses and long transportation distances of biomass residues, as well as the extraction of and further processing of raw materials, etc. The new system emphasize local bound solutions, meets and supports local stakeholder interests and development opportunities.
Original languageEnglish
Article number3
JournalGMSARN International Journal
Issue number1
Pages (from-to)93-98
Number of pages6
Publication statusPublished - 2022

Bibliographical note

This research was funded by EU Interreg South Baltic project Nr: THB.01.02.00-DK-0086/16 BioBIGG (Biomass-Based Innovation and Green Growth

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