| 1. |
- Brunklaus, Birgit, 1970-, et al.
(författare)
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The value of transdisciplinary perspectives duringtransition to a bio-based economy : The prospect for converting mixed food wasteinto bio-based chemicals
- 2018
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Ingår i: Designing Sustainable Technologies, Products andPolicies. - Cham : Spinger. - 9783319669809 - 9783319669816 ; , s. 327-335
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Within the current political and industrial transition to a bio-basedeconomy, food waste can be an alternative resource for biobased chemicals. Thischapter describes a case study that evaluates the prospect for Swedish production ofbiobased chemicals such as succinic acid from food waste. The evaluation isaddressed from multiple systems perspectives. From a technical and resourcesystem perspective, the results of the case study show that production seems possible.However, from a social system perspective succinic acid production currentlylacks institutional support and actor commitment and alignment for realizingdevelopment in Sweden. From an environmental and life cycle perspective, thescoping of the analysis is decisive for the results. The study shows that multipleperspectives complement each other when seeking a nuanced evaluation of technicalinnovation and give insights for the intended value chain.
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| 2. |
- Mutafela, Richard, et al.
(författare)
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Methods for investigation of old glass waste dumpsites
- 2018
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Ingår i: Proceedings of the 4th International Symposium On Enhanced Landfill Mining. - Leuven, Belgium : European Enhanced Landfill Mining Consortium (EURELCO). - 9789082825909 ; , s. 145-150
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Konferensbidrag (refereegranskat)abstract
- An old glass dumpsite in southern Sweden was mapped and investigated to locateglass abundance zones (“hotspots”) and understand physicochemical parametres ofthe waste. Global Positioning System (GPS) was used for mapping the site while ageophysical method of Electrical Resistivity was used for detecting glass hotspots inthe dump. Test pits were excavated and samples taken, after which hand sorting,sieving and X-Ray Fluorescence (XRF) scanning of the waste were used forphysicochemical properties. Geophysical mapping was found to be a feasible nondestructivetool in locating glass hotspots. In terms of composition, glass was foundto be the most abundant fraction at 90% average from all 4 sampling points. Fromparticle size distribution, particles > 11.3 mm were more abundant (75% average)than particles < 11.3 mm. XRF scanning yielded As, Cd and Pb concentrations of 3,700mg/kg, 500 mg/kg and 5,300 mg/kg, respectively. In conclusion, it is possible to locateglass hotspots and excavate them carefully in readiness for metal extraction whileavoiding the need for complicated sorting post-excavation.
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