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Framework of principal guidelines for improved valorization of heterogenic industrial production residues
Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Industriell miljöteknik. (Rersource 2.0)ORCID-id: 0000-0002-4810-2319
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Industriell miljöteknik. Linköpings universitet, Tekniska fakulteten. (Resource 2.0)
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Industriell miljöteknik. Linköpings universitet, Tekniska fakulteten. (Industrial and Urban Symbiosis)ORCID-id: 0000-0003-0157-6573
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Företagsekonomi. Linköpings universitet, Filosofiska fakulteten.ORCID-id: 0000-0002-2787-8417
2017 (engelsk)Konferansepaper, Poster (with or without abstract) (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
2017.
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-153273OAI: oai:DiVA.org:liu-153273DiVA, id: diva2:1269121
Konferanse
2017 Joint Conference ISIE and ISSST, Chicago, US, 25th June-29th June, 2017
Tilgjengelig fra: 2018-12-08 Laget: 2018-12-08 Sist oppdatert: 2018-12-13bibliografisk kontrollert

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