Selection of recovery paths for industrial wastes : a multicritera analysis approach. WasteEng 2018 | July 2-5, 2018 | Prague, Czech Republic
7 th International Conference WasteEng on Engineering for Waste and Biomass Valorisation , WasteEng 2018, Prague, Czech Republic
Waste management is one of the key drivers for the success of the transition from a linear economic model to a circular one. However, environmental, economic and social pressures involve a multi -dimensional character with very distinct issues and often divergent solutions in their aims. Nowadays, most of the methods and tools used for waste management studies focus on the economic and environmental aspects. Academic literature mainly deals with municipal solid waste (MSW, whereas industrial waste represents the majority of the output. Companies and local authorities have the responsibility to organize the correct orientation of their different flows towards the appropriate recovery paths, while respecting the European regulatory and national valorization targets. To help the decision maker, EDF's R&D (Electricité De France) works to design a tool in order to compare, with various criteria, waste management facilities on five considerations namely, technical, economic, environmental, territorial and regulatory. To build and weight the set of criteria, we propose to adapt and use a multi-criteria-decision-making (MCDM): Analytic Hierarchy Process (AHP) methodology. This method allows, via a wide panel of experts’ opinions (industrials,academics and from environmental agencies), the aggregation of qualitative and quantitative criteria to compare waste management solutions.Each solution obtains a score on the five previous dimensions. It is possible with this standard to compare several potential recovery facilities and give an in -depth discussion at management level of the company. Based on the results of many cases studies on asbestos, wood waste, sediments, and recycled concrete of deconstruction waste, we consider that the tool has many uses and can be applied to all sorts of wastes in order to evaluate and compare different recovery options. Thus, this guideline can help the decision maker to understand more clearly the situation and give him the possibility to choose to a recovery path according to his profile, inclination, values and preferences.