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Eklund, Mats, ProfessorORCID iD iconorcid.org/0000-0003-0157-6573
Alternative names
Publications (10 of 112) Show all publications
Eklund, M. (2023). Industrisamhällets framväxt, struktur och miljöpåverkan (2ed.). In: Jonas Ammenberg, Olof Hjelm (Ed.), Miljöteknik: för en hållbar utveckling (pp. 189-194). Lund: Studentlitteratur AB, Sidorna 189-194
Open this publication in new window or tab >>Industrisamhällets framväxt, struktur och miljöpåverkan
2023 (Swedish)In: Miljöteknik: för en hållbar utveckling / [ed] Jonas Ammenberg, Olof Hjelm, Lund: Studentlitteratur AB, 2023, 2, Vol. Sidorna 189-194, p. 189-194Chapter in book (Other academic)
Abstract [sv]

Föregående kapitel bidrog med grundläggande kunskaper om stora tekniska system. Men den kunskapen som bas kan man närma sig frågan hur några av de system som finns i dag kommit till och utvecklats med tiden. Dessutom ges i detta kapitel en historisk introduktion, som på en övergripande nivå beskriver hur industrisamhället och industriella system utvecklats. Kapitlet avslutas med en utblick mot framtiden.

Place, publisher, year, edition, pages
Lund: Studentlitteratur AB, 2023 Edition: 2
Keywords
Miljöteknik, Hållbar utveckling
National Category
Environmental Biotechnology
Identifiers
urn:nbn:se:liu:diva-195594 (URN)9789144159355 (ISBN)
Available from: 2023-06-22 Created: 2023-06-22 Last updated: 2023-06-22Bibliographically approved
Eklund, M. (2023). Introduktion till stora tekniska system (2ed.). In: Jonas Ammenberg, Olof Hjelm (Ed.), Miljöteknik: för en hållbar utveckling (pp. 181-187). Lund: Studentlitteratur AB, Sidorna 181-187
Open this publication in new window or tab >>Introduktion till stora tekniska system
2023 (Swedish)In: Miljöteknik: för en hållbar utveckling / [ed] Jonas Ammenberg, Olof Hjelm, Lund: Studentlitteratur AB, 2023, 2, Vol. Sidorna 181-187, p. 181-187Chapter in book (Other academic)
Abstract [sv]

Stora tekniska system fyller en viktig funktion i många människors vardag och de har också en stor miljömässig betydelse. Det gäller dels systemen själva, dels många delsystem i form av produkter och tjänster vars miljöpåverkan till stor del kan avgöras av de stora systemen. I kapitlet introduceras stora tekniska system. Fokus ligger på systemens framväxt och miljökoppling, viktiga komponenter och aktörer, och hur systemen kan utvecklas och förändras.

Place, publisher, year, edition, pages
Lund: Studentlitteratur AB, 2023 Edition: 2
Keywords
Miljöteknik, Hållbar utveckling
National Category
Environmental Biotechnology
Identifiers
urn:nbn:se:liu:diva-195593 (URN)9789144159355 (ISBN)
Available from: 2023-06-22 Created: 2023-06-22 Last updated: 2023-06-22Bibliographically approved
Cordova, S., Gustafsson, M., Eklund, M. & Svensson, N. (2023). What should we do with CO₂ from biogas upgrading?. Journal of CO2 Utilization, 77, Article ID 102607.
Open this publication in new window or tab >>What should we do with CO₂ from biogas upgrading?
2023 (English)In: Journal of CO2 Utilization, ISSN 2212-9820, E-ISSN 2212-9839, Vol. 77, article id 102607Article in journal (Refereed) Published
Abstract [en]

Carbon capture and utilization has been proposed as an essential climate change mitigation strategy, but only a few implemented cases exist. During biomethane production from anaerobic digestion, CO₂ is commonly separated and emitted into the atmosphere, which can be utilized as raw material for various products. This research aims to identify and assess CO₂ utilization alternatives for possible integration with biogas upgrading from anaerobic digestion by developing a soft multi-criteria analysis (MCA). A literature review complemented with stakeholder participation enabled the identification of relevant alternatives and criteria for assessment. Potential alternatives for CO₂ utilization include methane, mineral carbonates, biomass production, fuels, chemicals, pH control, and liquefied CO₂. Results show that although no alternative performs well in all indicators, there is an opportunity for short-term implementation for methane, biomass production, mineral carbonates, liquefied CO₂, and pH control. Moreover, the uncertainty analysis reveals that even though the technologies have a high technological development, more information on critical aspects is still required. The soft MCA provides information to decision-makers, practitioners, and the academic community on learning opportunities of the alternatives and indicators to step from development into implementation. For instance, the method can be used to assess more specific systems with different locations and scales or to direct efforts to ease the implementation of CCU.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Biomethane; Carbon Capture and Utilization; Criteria definition; Multi-criteria analysis
National Category
Energy Engineering
Identifiers
urn:nbn:se:liu:diva-199370 (URN)10.1016/j.jcou.2023.102607 (DOI)001105707400001 ()
Note

Funding: Kamprad Family Foundation for Entrepreneurship, Research Charity [20200041]

Available from: 2023-11-28 Created: 2023-11-28 Last updated: 2023-12-21
Lindfors, A., Hagman, L. & Eklund, M. (2022). The Nordic biogas model: Conceptualization, societal effects, and policy recommendations. City and Environment Interactions, 15, Article ID 100083.
Open this publication in new window or tab >>The Nordic biogas model: Conceptualization, societal effects, and policy recommendations
2022 (English)In: City and Environment Interactions, ISSN 2590-2520, Vol. 15, article id 100083Article in journal (Refereed) Published
Abstract [en]

Because biogas systems may take many forms, utilizing different feedstock and finding different end uses for the biogas, it is becomes difficult to produce explanations, inferences, and conclusions about biogas systems in general, which is why concepts for specific types of biogas systems are needed. This paper introduces the concept of the Nordic biogas model, an urban waste-based biogas system where biogas is upgraded to biomethane and used as transport fuel and the digestate applied as biofertilizer on farmland. The Nordic biogas model has three functions, namely, renewable transport fuel production, waste management service, and biofertilizer production that all bring secondary and tertiary positive societal effects, such as reduced climate gas emissions and productivity benefits to industry. This has implications for environmental and sustainability assessment of the Nordic biogas model as the multi-functionality must be considered when choosing reference scenarios, system boundary, and indicators to use within assessments. Finally, the paper discusses policy recommendations for supporting the implementation of the Nordic biogas model. Such policy should respect the multi-functionality of the Nordic biogas model by creating coherent policy mixes that neither neglect nor over-compensate for the multi-functionality of the Nordic biogas model.

Place, publisher, year, edition, pages
Oxford, United Kingdom: Elsevier, 2022
Keywords
Biogas, Anaerobic digestion, Sustainability assessment, Conceptualization, Multi-functionality, Sustainability solution
National Category
Environmental Management
Identifiers
urn:nbn:se:liu:diva-187148 (URN)10.1016/j.cacint.2022.100083 (DOI)000861619400001 ()2-s2.0-85133913887 (Scopus ID)
Funder
Swedish Energy Agency, n/a
Available from: 2022-08-08 Created: 2022-08-08 Last updated: 2022-10-19Bibliographically approved
Gustafsson, M., Svensson, N., Eklund, M. & Fredriksson Möller, B. (2021). Well-to-wheel climate performance of gas and electric vehicles in Europe. Transportation Research Part D: Transport and Environment, 97, Article ID 102911.
Open this publication in new window or tab >>Well-to-wheel climate performance of gas and electric vehicles in Europe
2021 (English)In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 97, article id 102911Article in journal (Refereed) Published
Abstract [en]

Focusing on tailpipe emissions, current EU policies do not favor the use of biofuels in transports. This paper analyzes the well-to-wheel climate performance of gas and electric vehicles in Europe, taking into account the share of biomethane in vehicle gas as well as the production systems for biomethane and electricity in different countries. The results show that both gas and electric vehicles can significantly reduce the climate change impact of transports compared to diesel. In an average European electricity system, electricity has around 30% lower climate impact than diesel for a heavy truck, and 65-70% lower for a passenger car or city bus. Average European vehicle gas reduces the climate impact by up to 28% compared to diesel, or 11% compared to fossil natural gas, and in some countries vehicle gas has lower climate impact than electricity. This demonstrates the importance of not limiting analysis and policy to tailpipe emissions.

Place, publisher, year, edition, pages
Elsevier, 2021
Keywords
Biomethane, Vehicle gas, Well-to-wheel, Transport, Carbon intensity, Electric mobility
National Category
Vehicle Engineering
Identifiers
urn:nbn:se:liu:diva-179028 (URN)10.1016/j.trd.2021.102911 (DOI)000687269900008 ()2-s2.0-85107129658 (Scopus ID)
Projects
Biogas Research Center
Funder
Swedish Energy Agency, 35624-3
Available from: 2021-09-07 Created: 2021-09-07 Last updated: 2022-03-08Bibliographically approved
Gustafsson, M., Svensson, N., Eklund, M., Dahl Öberg, J. & Vehabovic, A. (2021). Well-to-wheel greenhouse gas emissions of heavy-duty transports: Influence of electricity carbon intensity. Transportation Research Part D: Transport and Environment, 93
Open this publication in new window or tab >>Well-to-wheel greenhouse gas emissions of heavy-duty transports: Influence of electricity carbon intensity
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2021 (English)In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 93Article in journal (Refereed) Published
Abstract [en]

There are several alternatives for how to phase out diesel in heavy-duty transports, thereby reducing the sector’s climate change impact. This paper assesses the well-to-wheel (WTW) greenhouse gas (GHG) emissions of energy carriers for heavy-duty vehicles, analyzing the effect of the carbon intensity of the electricity used in production. The results show that energy carriers with high electricity dependence are not necessarily better than diesel from a WTW perspective. In particular, fuels produced through electrolysis are not well suited in carbon-intense electricity systems. Conversely, waste-based biofuels have low GHG emissions regardless of the electricity system. Battery-electric buses show a large reduction of GHG emissions compared to diesel buses and many other alternatives, while battery-electric trucks have higher GHG emissions than diesel in carbon intense electricity systems. Thus, electrifying transports or switching to renewable fuels will not suffice if the electricity system is not made renewable first.

Place, publisher, year, edition, pages
Elsevier, 2021
Keywords
Well-to-wheel, Heavy Transport, Greenhouse gas emissions, Carbon intensity, Transport fuels
National Category
Energy Systems Energy Engineering
Identifiers
urn:nbn:se:liu:diva-173930 (URN)10.1016/j.trd.2021.102757 (DOI)000638249600010 ()2-s2.0-85100969898 (Scopus ID)
Projects
Biogas Research Center
Funder
Swedish Energy Agency, 35624-3
Note

Funding: Swedish Biogas Research Center (BRC) - Swedish Energy Agency [35624-3]

Available from: 2021-03-10 Created: 2021-03-10 Last updated: 2022-03-08Bibliographically approved
Hagman, L., Eklund, M. & Svensson, N. (2020). Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery. Waste and Biomass Valorization, 11(7), 3567-3577
Open this publication in new window or tab >>Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery
2020 (English)In: Waste and Biomass Valorization, ISSN 1877-2641, E-ISSN 1877-265X, Vol. 11, no 7, p. 3567-3577Article in journal (Refereed) Published
Abstract [en]

Biorefineries are examples of industries striving towards a circular and bio-based economy through valorising natural raw materials to a spectrum of products. This is a resource-efficient process which also decreases overall environmental impact, as the products from a biorefinery can replace fossil-based products such as plastics or fuels. To become even more resource efficient, an optimisation of the by-product use can increase the performance. This study will evaluate different scenarios for the valorisation of stillage coming from a wheat-based biorefinery. The alternatives range from the direct use of the stillage for fodder, fertiliser or incineration to three different biogas production-based scenarios. The biogas scenarios are divided into the production of fuel at a local or distant plant and the alternative of creating heat and power at the local plant. The results show how locally produced biogas for vehicle fuel and fodder usage are the better alternatives regarding greenhouse gas emissions, the finances of the biorefinery, energy balance and nutrient recycling. The results also indicate that biorefineries with several high-value products may receive lower quality by-product flows, and to these, the biogas solutions become more relevant for valorising stillage while improving value and performance for the biorefinery.

Place, publisher, year, edition, pages
Springer Netherlands, 2020
Keywords
Biorefinery, Upcycling, Waste, Biogas, Fodder, Bioraffinaderi, avfall, biogas, värde
National Category
Bioprocess Technology Other Industrial Biotechnology Other Environmental Engineering
Identifiers
urn:nbn:se:liu:diva-160001 (URN)10.1007/s12649-019-00667-0 (DOI)000538735600036 ()
Projects
Biogas Research Center,
Funder
Swedish Energy Agency, P35624-3
Available from: 2019-09-03 Created: 2019-09-03 Last updated: 2022-04-21
Lindfors, A., Gustafsson, M., Anderberg, S., Eklund, M. & Mirata, M. (2020). Developing biogas systems in Norrköping, Sweden: An industrial symbiosis intervention. Journal of Cleaner Production, 277, Article ID 122822.
Open this publication in new window or tab >>Developing biogas systems in Norrköping, Sweden: An industrial symbiosis intervention
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2020 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 277, article id 122822Article in journal (Refereed) Published
Abstract [en]

Biogas systems are often multi-functional and involve  several actors in different sectors, requiring these actors to collaborate closely in order to implement such systems. In this paper, a study is presented where the theory of institutional capacity building is used to guide interventions with public and private actors to facilitate the development of local biogas systems in Norrköping, Sweden. The interventions were performed in the form of a workshop series, where local actors with potential to influence biogas developments actively took part. The workshop series generated knowledge on Norrköping’s significant potential for both producing and using biogas, which was traced, in part, to its high concentration of bio-based industries and its good position as a hub for transports. The interventions also created a shared understanding that cooperation and coordination to distribute resources and knowledge about biogas, both geographically and across sectors, was critical for realizing this potential. The municipal organization was identified as an important actor for coordinating these efforts. Observations during the workshops and survey responses indicate that the interventions contributed to building institutional capacity and initiation of efforts to develop local biogas solutions. Ideas put forth in this study enable interventions to target the intangible internal capacities of emerging industrial symbiosis networks. In addition, institutional capacity building serves as a useful analytical framework capable of capturing progress within emerging networks in the short-term even when material, water or energy synergies are yet to be realized.

Biogas systems are often multi-functional and involve several actors in different sectors, requiring these actors to collaborate closely in order to implement such systems. In this paper, a study is presented where the theory of institutional capacity building is used to guide interventions with public and private actors to facilitate the development of local biogas systems in Norrköping, Sweden. The interventions were performed in the form of a workshop series, where local actors with potential to influence biogas developments actively took part. The workshop series generated knowledge on Norrköping’s significant potential for both producing and using biogas, which was traced, in part, to its high concentration of bio-based industries and its good position as a hub for transports. The interventions also created a shared understanding that cooperation and coordination to distribute resources and knowledge about biogas, both geographically and across sectors, was critical for realizing this potential. The municipal organization was identified as an important actor for coordinating these efforts. Observations during the workshops and survey responses indicate that the interventions contributed to building institutional capacity and initiation of efforts to develop local biogas solutions. Ideas put forth in this study enable interventions to target the intangible internal capacities of emerging industrial symbiosis networks. In addition, institutional capacity building serves as a useful analytical framework capable of capturing progress within emerging networks in the short-term even when material, water or energy synergies are yet to be realized.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Industrial symbiosis; Institutional capacity building; Anaerobic digestion; Facilitation; Eco-industrial park
National Category
Energy Systems Environmental Management Social Sciences Interdisciplinary
Identifiers
urn:nbn:se:liu:diva-169036 (URN)10.1016/j.jclepro.2020.122822 (DOI)000586917600020 ()2-s2.0-85089138866 (Scopus ID)
Funder
Swedish Energy Agency
Note

Funding agencies: Swedish Biogas Research Center by the Swedish Energy Agency, Linkoping University

Available from: 2020-09-07 Created: 2020-09-07 Last updated: 2022-04-20Bibliographically approved
Gunaratne, T., Krook, J., Andersson, H. & Eklund, M. (2020). Guiding future research on the valorisation of shredder fine residues: A review of four decades of research. Detritus, 09, 150-164
Open this publication in new window or tab >>Guiding future research on the valorisation of shredder fine residues: A review of four decades of research
2020 (English)In: Detritus, ISSN 2611-4135, Vol. 09, p. 150-164Article in journal (Refereed) Published
Abstract [en]

Millions of tonnes of shredder fines are generated and disposed of globally, despite compelling reasons for its recovery. The absence of a review of previous literature, however, makes it difficult to understand the underlying reasons for this. Thus, this study attempts to investigate and assess what, to what extent, and in what ways shredder fines have been addressed in previous research. In doing so, guidelines are drawn for future research to facilitate the valorisation (upgrading and recovery) of shredder fines. Previous research concerning shredder fines was identified with respect to three main research topics. The material characterisation studies are predominantly confined to the occurrence of metals due to their recovery and contamination potential. The process development studies have often undertaken narrowly conceived objectives of addressing one resource opportunity or contamination problem at a time. Consequently, the full recovery (the retrieval of valuable resources and the bulk-utilisation as substitute material) potential of shredder fines has been largely overlooked. The main limitation of policy and regulation studies is the absence of in-depth knowledge on the implications of governmental waste- and resource-policies (macro-level) on actors’ incentives and capacities (micro-level) for fines valorisation, which is necessary to understand the marketability of fines-derived resources. Undertaking a systems perspective is the key to recognising not only the different aspects within the individual research topics but also the inter-relations between them. It also facilitates the internalisation of the inter-relations into topical research.

Place, publisher, year, edition, pages
Padova, Italy: CISA Publisher, 2020
Keywords
Shredder fines, Shredder residue, Valorisation, Recovery, Systems perspective
National Category
Environmental Management
Identifiers
urn:nbn:se:liu:diva-167032 (URN)10.31025/2611-4135/2019.13868 (DOI)000521799700019 ()
Projects
Mistra closing the loop II
Funder
Mistra - The Swedish Foundation for Strategic Environmental Research
Available from: 2020-06-25 Created: 2020-06-25 Last updated: 2021-09-12Bibliographically approved
Gunaratne, T., Krook, J., Andersson, H. & Eklund, M. (2020). Potential valorisation of shredder fines: Towards integrated processes formaterial upgrading and resource recovery. Resources, Conservation and Recycling, 154, Article ID 104590.
Open this publication in new window or tab >>Potential valorisation of shredder fines: Towards integrated processes formaterial upgrading and resource recovery
2020 (English)In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 154, article id 104590Article in journal (Refereed) Published
Abstract [en]

The lack of process development based on a comprehensive understanding of the material characteristics and the marketability of recoverables is the primary reason why the valorisation of shredder fines has not been realised in practice. In response, a systematic approach was undertaken consisting of 1) strategic sampling and material characterisation, 2) establishing gate and regulatory requirements of potential valorisation applications, and 3) initial feasibility assessment of the selected applications, to guide future research.

The material was sampled over ten weeks in order to obtain both average values and variations of the physical and chemical composition. Thus weekly, primary fractions and sieved fractions ZA (7.10–5.00 mm), ZB (5.00–3.35 mm), ZC (3.35–2.00 mm), ZD (2.00–0.25 mm), and ZE (0.25–0.063 mm) were prepared, and analysed, and benchmarked against the requirements pertaining to five potential applications. The mercury and aluminium concentrations are the biggest challenge in copper smelting and only ZA and ZB show significant potential. Energy recovery is limited to ZA, ZB, and ZC, provided the chlorine and metals concentrations are decreased. Regarding the recovery as bulk-material in construction, the reduction of the metal content would likely be a pre-requisite.

The utilisation of fines in the individual applications would either leave a significant amount of fines un-valorised or overlook the recovery of valuable resources. The upgrading of the material to suit the different applications would also require addressing multiple material constraints simultaneously. Therefore, realising the full resource potential of shredder fines would require the integration of different upgrading and recovery processes.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Shredder fines, Valorisation, Upgrading, Recovery, Characterisation, User requirements
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:liu:diva-167036 (URN)10.1016/j.resconrec.2019.104590 (DOI)000540553600036 ()2-s2.0-85075936986 (Scopus ID)
Projects
Mistra Closing the loop II
Funder
Mistra - The Swedish Foundation for Strategic Environmental Research
Note

Funding agencies: Swedish Foundation for Strategic Environmental Research (Mistra)Swedish Foundation for Strategic Research

Available from: 2020-06-25 Created: 2020-06-25 Last updated: 2021-09-12Bibliographically approved
Organisations
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ORCID iD: ORCID iD iconorcid.org/0000-0003-0157-6573

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