Allocation rule for open-loop recycling in life cycle assessment

摘要: Recycling of a product can lead to the same or other products. Within Inventory Analysis LCA, first process is called closed-loop recycling and poses relatively small methodological problems, whereas second, open-loop recycling, involves major allocation problems. Basically, creates new, larger system which should be treated as one in inventory analysis from scientific point view. Since this frequently not possible, rules have applied order treat subsystems separately. In review, different proposed are presented discussed with respect criteria mathematical neatness, feasibility justice/incentive for both producers users secondary raw materials.