Food & garden ‐ n°6Title
Klimaregnskap for
avfallshåndtering
Year 2009
Author Raandal
Case
Material composition
Sub‐scenario Landfill Incineration Composting Anaerobic Digestion
Virgin material
Material marginal: which? ////
Electricity marginal: which? ////
Steam marginal: which? ////
Co‐products dealt with? ////
Recovered material
Material marginal: which? / / 30%fertiliser^ peat,^ 60%^ fertiliser and peat
Electricity marginal: which? Scandinavian mix Scandinavian mix / Scandinavian mix
Steam marginal: which? Norwegian mix Norwegian mix / Norwegian mix
Co‐products dealt with? ////
Material recovery included? / / Yes Yes
Type of recycling ////
Alternative use of land/wood included? ////
In which ratio does recycled material substitute virgin
material? ////
General
Technology
Infrastructures taken into account? ////
Transport included? Yes Yes Yes Yes
Energy production
Produced energy substitutes electricity? Yes Yes / Yes
Produced energy substitutes heat? Yes Yes / Yes
Avoided processes ‐ credits energy production energy production fertiliserenergy production,
fertiliser and peat
production
Material substitutes / / fertiliser fertiliser and peat
Carbon sequestration issue taken into account? NoNoNoNo
Waste characteristics
Heating value / 2.3 MJ/kg / /
Degradation rate (over 100 years) ////
Incineration
Alternative use of incineration capacity included? / No / /
Efficiency ////
Composting
Compost spreading for composting taken into account?////
Compost leaching after spreading taken into account?////
Carbon storage taken into account? / / Yes /
Landfill / AD
Methane emissions included? Yes / Yes YesEfficiency25% methane
recovery, 38% used
for electricity (35%
conversion), 20% heat
(64% conversion) and
42% flared//Recovered energy
replaces 18%
electricity, 53% heat,
19% flared, 2% loss
and 9% unknown
Carbon storage taken into account? / / Yes Yes7[OR]Material
recoveryOrganicMaterial
productionMaterial
disposal