For wood and bio-degradable plastics, landfill is set to zero, since it is assumed that the product will vanish within 100 years, and since emissions of biogenic CO2 is not couted in LCA (it is a closed loop in nature).
The EoL carbon footprint of landfill for metals and plastics is zero (since there are no CO2e emissions) as well.
Note that many EU countries have still a considerable amount of landfill, see Fig. 2.3a. For a local LCA, the ratio must be taken of the first output columns, method A, and the second output column, method B.
B. 100% Municipal Wate Treatment (the standard end-of-life in Western Europe).
In this scenario waste is separated with open loop recycling of metals and incineration with heat recovery of plastics, textile and wood products.
The EoL eco-costs of metals are zero, since it is open loop recycling, and the benefit of recycling is taken as part of the “market mix” calculation of metals. Note hat this implies that you must take the “market mix” as input for your products.
The EoL eco-costs of bio-based plastics are determined by the EoL credit of municipal waste incineration with heat recovery from the Idemat database. Note that the biogenic CO2 is not counted in LCA, so bio-based