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LCA Modelling for the Development of a Simplified Assessment Tool for Food Waste Valorisation and Disposal

Food waste is an increasing concern in Europe. Each step in the food supply chain generates side-flows that can be valorised and recycled (e.g. processed to animal feed, producing methane gas in anaerobic digestion) or disposed (e.g. landfilled, discarded to land). These side-flows can have positive or negative economic value, depending on market demand.

Life cycle analysis (LCA) modelling for the development of a simplified assessment tool for food waste valorisation and disposal faces several challenges. Aspects such as theoretical robustness, data availability and communicative capacity from the view of the users of the tool are determining factors to agree on a modelling framework, but which are not always obvious. The contribution presents the iterative journey of finding an appropriate framework for a generic and simplified spreadsheet tool to assess greenhouse gas emissions and costs of valorisation and disposal of food side-flows such as apple pomace, animal blood, brewer spent grain and whey permeate. Different approaches of modelling frameworks (attributional, consequential small-scale, consequential large-scale) were tested in its applicability to fulfil the requirements of the spreadsheet tool.

Copyright:	© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben
Quelle:	Recy & Depotech 2018 (November 2018)
Seiten:	6
Preis:	€ 3,00
Autor:	Dr. Nicole Unger Jennifer Davis Fabio De Menna P. Metcalfe Marion Loubiere
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