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Editor in Chief: RAFFAELLO COSSU

BENCHMARK ANALYSIS FOR RECYCLED GLASS IN AUSTRIAN WASTE MANAGEMENT

  • Karl Friedrich - Department of Environmental and Energy Process Engineering, Montanuniversitat Leoben, Austria
  • Stephan Holzschuster - Department of Environmental and Energy Process Engineering, Montanuniversitaet Leoben, Austria
  • Theresa Fritz - Department of Environmental and Energy Process Engineering, Montanuniversitat Leoben, Austria
  • Roland Pomberger - Department of Environmental and Energy Process Engineering, Montanuniversitat Leoben, Austria
  • Alexia Aldrian - Department of Environmental and Energy Process Engineering, Montanuniversitat Leoben, Austria

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Abstract

The amendment of the Waste Framework Directive of the European Commission has set a new target for the use of recyclates. It is one of the most significant findings of this strategy that recyclates are currently too infrequently integrated into new products. Glass recycling, however, is widely accepted by the society. The chemical and physical properties of glass enable an almost 100% rate of recycling. Furthermore, the society is experienced in separating glass by colour, resulting in high-quality recycling glass for the production of new glass. Cullets are significant here. Evidently, the price of recyclates is linked to the price of primary material. Practical experience has shown, however, that pricing also correlates with different quality parameters such as degree of mixing, degree of degradation and presence of impurities. This paper examines the correlation between different quality features and how they affect the price of cullets. Experts from the Austrian processing and recycling business were interviewed about the important parameters of their quality inspection and how they affect the pricing policy. Additionally, quality parameters for input and output material are included. Besides the interviews, specific questions on correlations between the price and quality of cullets were e-mailed to several stakeholders in the glass industry. Experts from the glass processing industry did not confirm a correlation between price and quality, however: higher quality does not necessarily mean higher prices. Glassworks are ready to pay higher prices for higher qualities in order to meet their sustainability objectives or to expand their production capacities.

Keywords


Editorial History

  • Received: 27 Feb 2020
  • Revised: 16 Aug 2020
  • Accepted: 17 Sep 2020
  • Available online: 28 Dec 2020

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