liu.seSearch for publications in DiVA
Change search
Link to record
Permanent link

Direct link
BETA
Publications (10 of 32) Show all publications
Gunaratne, T., Krook, J., Eklund, M. & Andersson, H. (2018). Initial feasibility assessment of potential applications for valorisation of shredder fines: A Swedish case study on gate requirements and legislative conditions. In: : . Paper presented at ISWA 2018 World Congress, Kuala Lumpur, Malaysia, 22-24 October, 2018.
Open this publication in new window or tab >>Initial feasibility assessment of potential applications for valorisation of shredder fines: A Swedish case study on gate requirements and legislative conditions
2018 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Shredder fines is a residue of the shredding industry and is currently landfilled or used as landfill cover in Sweden. Throughout the time, the heterogeneity and small particle size have rendered resource recovery and recycling of it challenging. In spite of that, European policies envisioning circular economy, in concomitance with stringent resource recovery requirements and increased landfill taxes are challenging the current disposal practices of the shredding industry. As an attempt to address this issue, the present study has developed a systematic approach for performing an initial assessment of the feasibility of several selected mainstream applications for valorisation of shredder fines.

First, sampling of shredder fines from a major shredding plant was obtained twice a week over a 10 weeks period. The main focus of the sampling program was to encompass the variation in the material’s physical and chemical composition. The two samples from each week were then mixed and divided into six subsamples. That is, one original fraction and five size 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). These sub-samples were subsequently sent for laboratory analysis for characterisation of contaminants, potentially valuable metals and energy recovery related properties. Second, three potential main stream applications for shredder fines were identified based on existing research on similar industrial residues (e.g. municipal waste incineration bottom ash) and current practices of the Swedish shredding industry. The selected applications are; Smelting for copper, Energy recovery in cement kilns and municipal solid waste incinerators, and Substitution of aggregates in concrete making and road construction. Third, the gate requirements of potential users and legislative requirements with regards to the identified applications were established, and the characteristics of shredder fines were benchmarked against them.

As far as copper smelting is concerned, the presence of high concentrations of lead and chromium is the biggest challenge. Otherwise, the fractions; ZA, ZB, and ZD show some potential due to manageable concentrations of arsenic, cadmium, and mercury. Concerning energy recovery, the calorific value apparently narrows down the options to municipal waste incinerators. There, the chlorine concentration only allows utilisation of the ZC fraction whereas heavy metal concentrations are too high with regards to all the fractions. With regards to the use as substitute material in construction, legislative requirements in Sweden for total content and leachate content of metals are too strict for shredder fines.

In conclusion, the benchmarking reveals the need for prior upgrading of shredder fines with respect to the different applications. Thus, integrated upgrading processes that could handle the complexity of the material in terms of contaminants and valuable recoverables is needed in order to achieve holistic valorisation of the material.

Keywords
Shredder fines, Feasibility, Circular economy
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
urn:nbn:se:liu:diva-153272 (URN)
Conference
ISWA 2018 World Congress, Kuala Lumpur, Malaysia, 22-24 October, 2018
Available from: 2018-12-07 Created: 2018-12-07 Last updated: 2018-12-13Bibliographically approved
Gunaratne, T., Krook, J., Eklund, M. & Andersson, H. (2017). Framework of principal guidelines for improved valorization of heterogenic industrial production residues. In: : . Paper presented at 2017 Joint Conference ISIE and ISSST, Chicago, US, 25th-29th June, 2017.
Open this publication in new window or tab >>Framework of principal guidelines for improved valorization of heterogenic industrial production residues
2017 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Residue products often pose a huge challenge to material recycling industry. Especially heterogenic and fine granular residues. It increases the cost and reduces the efficiency of material separation and recovery. Currently, the most common practice is to landfill such residue products. However, decreasing availability of landfills, increasing landfill costs, and new policy instruments require higher rates of resource recovery. In spite of that, business initiatives for recovering secondary raw material from residue products are often deterred by stringent environmental legislation emphasizing human toxicity concerns. Shredding industry plays a huge role in the context of circular economy via recycling important waste streams such as end-oflife vehicles (ELVs), municipal white goods, construction and demolition waste, and different industrial wastes. The core business model of industrial shredding is driven by recovering different metals while a variety of residue products including plastics, rubber, foam, wood, glass, and sand are generated. Shredder fine residue (also called shredder fines) is a fine granular residue product with intrinsic heterogeneity, which is produced by the shredding industry. A share of 15-20% of the input would end up as shredder fines in a typical plant.

The overall aim of this study is to draw technical, market and regulatory boundary conditions for improved material recovery from shredder fines. Thereby to build a framework of principal guidelines to support systematic identification, development, and evaluation of different valorization options for shredder fines. The outcome of this study is also envisioned to provide generic conclusions to the valorization of heterogenic residue products in general.

The study is performed in collaboration with a major shredding company in Sweden. The methodology reflects the Swedish context and consists of two phases. During the initial phase, firstly, the overall shredding industry structure of Sweden is studied to understand the governing regulatory framework, level of competition, and the scale of operation. Secondly, the collaborating company is studied to gain knowledge on technical feasibility of implementing recovery processes, economic, business and market aspects, and implications of national and local legislation, from the shredding company perspective. Empirical methods such as interviews and study of documentation are used in this phase.

During the second phase, detailed material and elemental characterization tests are performed on shredder fine samples. Thereby the distribution of basic elements, metals, heating value, and ash, in shredder fines as well as across different size fractions of shredder fines is established. The results are compared and contrasted against literature values. An extensive survey is also carried out to identify potential users for different materials which are possibly recoverable from shredder fines. Such potential users are then mapped against materials. Leaching tests are also performed to assess the mobility of heavy metals and thereby the potential environmental risk and human toxicity.

As the main contribution of this study, knowledge is developed and synthesized, boundary conditions are set, and principal guidelines of general relevance are drawn in order to facilitate improved valorization of fine granular residue products.

National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
urn:nbn:se:liu:diva-153271 (URN)
Conference
2017 Joint Conference ISIE and ISSST, Chicago, US, 25th-29th June, 2017
Available from: 2018-12-07 Created: 2018-12-07 Last updated: 2018-12-13Bibliographically approved
Gunaratne, T., Krook, J., Eklund, M. & Andersson, H. (2017). Framework of principal guidelines for improved valorization of heterogenic industrial production residues. In: : . Paper presented at 2017 Joint Conference ISIE and ISSST, Chicago, US, 25th June-29th June, 2017.
Open this publication in new window or tab >>Framework of principal guidelines for improved valorization of heterogenic industrial production residues
2017 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Residue products often pose a huge challenge to material recycling industry. Especially heterogenic and fine granular residues. It increases the cost and reduces the efficiency of material separation and recovery. Currently, the most common practice is to landfill such residue products. However, decreasing availability of landfills, increasing landfill costs, and new policy instruments require higher rates of resource recovery. In spite of that, business initiatives for recovering secondary raw material from residue products are often deterred by stringent environmental legislation emphasizing human toxicity concerns. Shredding industry plays a huge role in the context of circular economy via recycling important waste streams such as end-oflife vehicles (ELVs), municipal white goods, construction and demolition waste, and different industrial wastes. The core business model of industrial shredding is driven by recovering different metals while a variety of residue products including plastics, rubber, foam, wood, glass, and sand are generated. Shredder fine residue (also called shredder fines) is a fine granular residue product with intrinsic heterogeneity, which is produced by the shredding industry. A share of 15-20% of the input would end up as shredder fines in a typical plant.

The overall aim of this study is to draw technical, market and regulatory boundary conditions for improved material recovery from shredder fines. Thereby to build a framework of principal guidelines to support systematic identification, development, and evaluation of different valorization options for shredder fines. The outcome of this study is also envisioned to provide generic conclusions to the valorization of heterogenic residue products in general.

The study is performed in collaboration with a major shredding company in Sweden. The methodology reflects the Swedish context and consists of two phases. During the initial phase, firstly, the overall shredding industry structure of Sweden is studied to understand the governing regulatory framework, level of competition, and the scale of operation. Secondly, the collaborating company is studied to gain knowledge on technical feasibility of implementing recovery processes, economic, business and market aspects, and implications of national and local legislation, from the shredding company perspective. Empirical methods such as interviews and study of documentation are used in this phase.

During the second phase, detailed material and elemental characterization tests are performed on shredder fine samples. Thereby the distribution of basic elements, metals, heating value, and ash, in shredder fines as well as across different size fractions of shredder fines is established. The results are compared and contrasted against literature values. An extensive survey is also carried out to identify potential users for different materials which are possibly recoverable from shredder fines. Such potential users are then mapped against materials. Leaching tests are also performed to assess the mobility of heavy metals and thereby the potential environmental risk and human toxicity.

As the main contribution of this study, knowledge is developed and synthesized, boundary conditions are set, and principal guidelines of general relevance are drawn in order to facilitate improved valorization of fine granular residue products.

National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
urn:nbn:se:liu:diva-153273 (URN)
Conference
2017 Joint Conference ISIE and ISSST, Chicago, US, 25th June-29th June, 2017
Available from: 2018-12-08 Created: 2018-12-08 Last updated: 2018-12-13Bibliographically approved
Åman, P. & Andersson, H. (2016). Knowledge integration of and by design. Swedish Design Research Journal, 8(1), 21-31
Open this publication in new window or tab >>Knowledge integration of and by design
2016 (English)In: Swedish Design Research Journal, ISSN 2000-964X, Vol. 8, no 1, p. 21-31Article in journal (Refereed) Published
Abstract [en]

The purpose of this paper is to explore the possible uses, benefits, limitations and future directions of a formal knowledge integration perspective on design management. The paper develops the concepts of management thinking and design(erly) thinking, and questions the implied contention. With a knowledge perspective, design management may be seen as including the capability to integrate specialized, distributed and heterogeneous knowledge bases. Consequences regarding the characteristics of scope, flexibility and efficiency of knowledge integration indicate both greater difficulties and greater possibilities.  Regarding the architecture of knowledge, integration of design indicates a functional orientation and a limited role for design, while integration by design may indicate a strategic role.

Place, publisher, year, edition, pages
Stockholm: SVID, Stiftelsen Svensk Industridesign, 2016
Keywords
design, knowledge integration
National Category
Business Administration
Identifiers
urn:nbn:se:liu:diva-129463 (URN)
Available from: 2016-06-20 Created: 2016-06-20 Last updated: 2016-06-28Bibliographically approved
Åman, P. & Andersson, H. (2015). Knowledge integration of and by design. In: : . Paper presented at 8:th International Workshop on Design Theory, Paris, France, January 26-27, 2015..
Open this publication in new window or tab >>Knowledge integration of and by design
2015 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

The capability to integrate across a range of specialized knowledge bases is a crucial contemporary source of competitive advantage, and the field of knowledge integration aims at structuring the issues. The purpose of this paper is to explore the possible uses, benefits, limitations and future directions of a formal knowledge integration perspective on design management. The paper develops the concepts of management thinking and design(erly) thinking, and questions the contention. With a knowledge perspective, design management may be seen as including the capability to integrate specialized, distributed and heterogeneous knowledge bases. Consequences regarding the characteristics of scope, flexibility and efficiency of knowledge integration indicate both greater difficulties and greater possibilities. Regarding the architecture of knowledge, the integration of design indicates a functional orientation and a limited role for design, while integration by design may indicate a strategic role.

Keywords
Knowledge integration, design
National Category
Business Administration
Identifiers
urn:nbn:se:liu:diva-121048 (URN)
Conference
8:th International Workshop on Design Theory, Paris, France, January 26-27, 2015.
Available from: 2015-09-03 Created: 2015-09-03 Last updated: 2016-03-30
Andersson, H. & Berggren, C. (Eds.). (2015). Kunskapsintegration och innovation i en internationaliserande ekonomi: Slutrapport från ett forskningsprogram (1ed.). Stockholm - Göteborg: Makadam Förlag
Open this publication in new window or tab >>Kunskapsintegration och innovation i en internationaliserande ekonomi: Slutrapport från ett forskningsprogram
2015 (Swedish)Collection (editor) (Other academic)
Abstract [sv]

Den här skriften presenterar ett urval resultat och texter från forskningsprogrammet ”Kunskapsintegration och innovation i en internationaliserande ekonomi” (Knowledge Integration and Innovation in Transnational Enterprise, KITE) som finansierats av Riksbankens Jubileumsfond i två faser under åren 2007–2015. I programmet har vi analyserat hur företag, speciellt i tekniktunga industrier, påverkas av den allt mer globala konkurrensen om nya produkter och tjänster, hur nya specialiserade kunskaper växer fram och tas tillvara, och hur de kan förenas med existerande kunskapsbas. I denna skrift finns studier på tre olika nivåer: branschnivån, med analyser av innovationsprocesser och kunskapsutmaningar i industriella sektorer; företagsnivån, med skildringar av förändringar i företagens interna organisering av kunskapsbildande processer och undersökningar av nya former för utbyte och samspel mellan företag; samt mikronivån, med undersökningar av samspelet mellan individuella specialister inom företag. Skriften vänder sig både till den intresserade allmänheten och till forskare med annan vetenskaplig bakgrund. Fokus är på internationellt konkurrerande branscher och företag, men analyserna av kunskapens delning och sammanflätning, separation och integration, har bäring också på andra kunskapsintensiva sektorer och verksamheter, från statliga verk till sjukvård.

En vetenskaplig presentation av programmets forskning under de första fyra åren finns i boken Knowledge Integration and Innovation: Critical Challenges Facing International Technology-Based Firms (redigerad av Berggren, Bergek, Bengtsson, Hobday & Söderlund och utgiven av Oxford University Press 2011). En uppföljande volym, Managing Knowledge Integration Across Boundaries, planeras av samma förlag 2016 (redigerad av Tell, Berggren, Brusoni & Van de Ven). I den medverkar ett antal internationella författare vilket visar kunskapsområdets globala tyngd och intresse. Under programmets drygt åtta år har deltagarna publicerat ett mycket stort antal artiklar, konferensbidrag, bokkapitel och liknande. För dessa hänvisar vi till programmets hemsida www.liu.se/kite.

Vi har under hela programperioden arbetat intensivt med att diskuteraoch konstruktivt kritisera och utveckla varandras bidrag. Därför har det varit naturligt att denna skrift inbegriper många programdeltagares medverkan. En presentation av samtliga medverkande finns i slutet av denna skrift. Följande KITE-forskare har medverkat i nedan angivna kapitel:

Hans Andersson (kapitel 4)

Lars Bengtsson (kapitel 7)

Marie Bengtsson (kapitel 3)

Anna Bergek (kapitel 2)

Christian Berggren (kapitel 1)

Karin Bredin (kapitel 6)

Cecilia Enberg (kapitel 5, 7)

Mattias Johansson (kapitel 4)

Nicolette Lakemond (kapitel 7)

Lars Lindkvist (kapitel 3)

Thomas Magnusson (kapitel 1)

Camilla Niss (kapitel 6)

Jonas Söderlund (kapitel 6)

Fredrik Tell (kapitel 5)

Vi vill också tacka Jenny Björkman på Riksbankens Jubileumsfond och Makadam förlag för deras engagerade arbete med redigering och produktion av slutresultatet.

Place, publisher, year, edition, pages
Stockholm - Göteborg: Makadam Förlag, 2015. p. 112 Edition: 1
Series
RJ:s skriftserie ; 6
National Category
Other Mechanical Engineering Work Sciences Business Administration Information Systems, Social aspects
Identifiers
urn:nbn:se:liu:diva-122258 (URN)978-91-7061-690-7 (ISBN)
Projects
M2006-0231
Available from: 2015-10-26 Created: 2015-10-26 Last updated: 2015-11-03Bibliographically approved
Andersson, H. & Johansson, M. (2015). Värdet av konstruktiva opponenter: om uppfinnare och patentingenjörer i kreativ samverkan. In: Hans Andersson, Christian Berggren (Ed.), Kunskapsintegration och innovation i en internationaliserande ekonomi: slutrapport från ett forskningsprogram (pp. 51-61). Göteborg: Makadam Förlag
Open this publication in new window or tab >>Värdet av konstruktiva opponenter: om uppfinnare och patentingenjörer i kreativ samverkan
2015 (English)In: Kunskapsintegration och innovation i en internationaliserande ekonomi: slutrapport från ett forskningsprogram / [ed] Hans Andersson, Christian Berggren, Göteborg: Makadam Förlag, 2015, p. 51-61Chapter in book (Other academic)
Place, publisher, year, edition, pages
Göteborg: Makadam Förlag, 2015
Keywords
Patent
National Category
Business Administration
Identifiers
urn:nbn:se:liu:diva-124297 (URN)978-917061-190-2 (ISBN)
Available from: 2016-01-26 Created: 2016-01-26 Last updated: 2016-02-03Bibliographically approved
Andersson, H. & Åman, P. (2014). Design as Change - From Teleology to Guided Evolution?. In: : . Paper presented at 7th International Workshop on Design Theory, Paris, France, January 27-28, 2014.
Open this publication in new window or tab >>Design as Change - From Teleology to Guided Evolution?
2014 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Design is connected to change. Whether we start from Herbert Simon’s often cited “the transformation of existing conditions into preferred ones” (1996 p.111) or design as linked to innovation (Brown 2008, Verganti 2006) or even Heskett’s (2002) ‘betterment of the human condition’, design is a future oriented (Buchanan 2001), change inducing activity. But how is design thinking (in a wide sense) different from traditional managerial thinking in terms of the concept of change? What of the process(es) by which the existing conditions are transformed into the preferred ones, i.e. how may the change process be conceptualized in design? How does the general concern of change in the design community relate to the advances in strategic and organizational change theories? Our aim is to begin an exploration of how design may be conceptualized in relation to change.

We do this by using two out of Pettigrew’s (1987) three related aspects of change: ‘process’, how something changes, and ‘content’, i.e. what is changed, to frame design as change (the third is ‘context’, the why of change). We make an attempt to explore and identify change perspectives, explicit or implicit, in design by using Van de Ven and Poole’s (1995) synthetic model of four “basic types of process theories” (p. 511): teleology, evolution, life cycle, and dialectic, all driven by different generative mechanisms or ‘motors of change’. Van de Ven & Poole’s ideal process types do though not handle the content aspect. To capture design content, we therefore use Heskett’s (2002) division of the designed artifacts’ function into two concepts, ‘utility’ and ‘significance’.

Design processes are normally described as either of a teleological kind, i.e. driven by a goal set at the beginning of the process, or as similar to an evolutionary process. Some elements of the evolutionary model are frequent in descriptions of design processes, e.g. iterativity, prototyping and gradual development. However, the uncontrollability and slowness of evolution are less salient. A better way to frame design processes as evolutionary may therefore be to see them as guided (Lovas and Ghoshal 2000), i.e. driven not only by random mutation and competition but also by intent.

By using Heskett’s distinction between utility and significance it is possible to further dissect the design process/design processes. Processes aiming for ‘utility’ eventually must converge into a solution, but is it necessarily the same when it regards the process by which ‘significance’ is designed, created and maintained? By analytically separating (c.f. Archer 1995) the by definition integrative design process, we argue that discussing design as process and content expands previous views of design as change.

National Category
Business Administration
Identifiers
urn:nbn:se:liu:diva-106376 (URN)
Conference
7th International Workshop on Design Theory, Paris, France, January 27-28, 2014
Available from: 2014-05-06 Created: 2014-05-06 Last updated: 2014-05-14
Åman, P. & Andersson, H. (2014). Knowledge integration of and by design. In: Erik Bohemia, Alison Rieple, Jeanne Liedtka, Rachel Cooper (Ed.), Proceedings of the 19th DMI: AcademicDesign Management Conference: . Paper presented at The 19th DMI International Design Management Research Conference, London 2-4 September 2014 (pp. 1741-1763). Boston, USA: Design Management Institute
Open this publication in new window or tab >>Knowledge integration of and by design
2014 (English)In: Proceedings of the 19th DMI: AcademicDesign Management Conference / [ed] Erik Bohemia, Alison Rieple, Jeanne Liedtka, Rachel Cooper, Boston, USA: Design Management Institute , 2014, p. 1741-1763Conference paper, Published paper (Refereed)
Abstract [en]

The capability to integrate across a range of specialized knowledge bases is a crucial contemporary source of competitive advantage, and the field of knowledge integration aims at structuring the issues. The purpose of this paper is to explore the possible uses, benefits, limitations and future directions of a formal knowledge integration perspective on design management. The paper develops the concepts of management thinking and design(erly) thinking, and questions the contention. With a knowledge perspective, design management may be seen as including the capability to integrate specialized, distributed and heterogeneous knowledge bases. Consequences regarding the characteristics of scope, flexibility and efficiency of knowledge integration indicate both greater difficulties and greater possibilities. Regarding the architecture of knowledge, the integration of design indicates a functional orientation and a limited role for design, while integration by design may indicate a strategic role. Also, whether integration of design or by design, the construction of common knowledge, bridging the specialized fields, seems a prerequisite for the effective knowledge integration of management thinking and design(erly thinking.

Place, publisher, year, edition, pages
Boston, USA: Design Management Institute, 2014
Keywords
management thinking, design(erly) thinking, knowledge integration, scope of integration, integration capabilities
National Category
Business Administration
Identifiers
urn:nbn:se:liu:diva-110413 (URN)978-0-615-99152-8 (ISBN)
Conference
The 19th DMI International Design Management Research Conference, London 2-4 September 2014
Available from: 2014-09-10 Created: 2014-09-10 Last updated: 2016-03-30
Andersson, H. & Johansson, M. (2014). The Role of Patent Engineer - Inventor Interaction for Research and Development Creativity. In: : . Paper presented at 21:st International Product Development Management Conference. Limerick, Ireland, June 15-17 2014. Brussels
Open this publication in new window or tab >>The Role of Patent Engineer - Inventor Interaction for Research and Development Creativity
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Patents as a strategic tool has been much in focus lately, both in research and in the corporate world. Considering this, there has been surprisingly little interest paid to the process in which patents are generated within firms. Based on interviews with patent engineers and inventors who have been involved in interaction with each other in patenting processes, plus their patent managers, this study describe and discuss the patent drafting process as one (partly) driven by interaction. The patent drafting process is described as a process of asymmetrical collaboration delivering two distinct, but related outcomes – a refined invention and a patent application that most likely is better than it would have been otherwise. These outcomes are not cases of collective creativity as patent engineers do not invent and inventors do not (normally) define patent claims. This does not diminish the importance of the collaboration. Three roles - “opportunity recognizer”,“konstruktiver opponent”, and “enabling bureaucrat” – are identified and used to frame the patent engineers’ work and contributions to creativity.

Place, publisher, year, edition, pages
Brussels: , 2014
Keywords
Patent engineer, inventor, interaction, creativity
National Category
Social Sciences Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-108761 (URN)
Conference
21:st International Product Development Management Conference. Limerick, Ireland, June 15-17 2014
Available from: 2014-07-03 Created: 2014-07-03 Last updated: 2015-02-24
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-2787-8417

Search in DiVA

Show all publications