2020_05_Modeling recyling in life cycle…

Update of the assessment: the criteria defined in WP 3 and the assessment of methods in WP 4 were revised based on the findings from the case studies in WP5 and on feedback from the partners. [...] The only challenge is to define the boundary between the life cycles: should this boundary be before, within, or after the recycling of the material? A simple cut-off method is recommended by the international system for Environmental Product Declarations (EPD), which defines the boundary between the life cycles as the point where the material has its lowest market value (EPD International 2017, p. [...] In many of these cases, the GHG Protocol recommends the use of two methods in parallel to assess the robustness of the results: the recycled-content approach and the closed-loop approximation (see below). [...] The economic allocation in this case means that the environmental burdens of the dismantling process is attributed to the upstream and downstream products in proportion to the extent to which they contribute to the revenues of the dismantling process. [...] where: • E’ is the environmental burdens of Module D, 28 (136) • ERpostEoW is the environmental burdens of recycling processes that occur after the outflow of recyclable material reaches the end-of-waste state, • E* is the environmental burdens of the material replaced through recycling, • QRout is the quality of the recycled material from the life cycle at the point of substitution, and • QSub is.