As landfilling of combustible waste was
only of secondary importance and is
prohibited completely since the year 2000
(section 4.8.2), greenhouse gas emissions
from solid waste disposal sites are small,
further decreasing, and only result from
Landfilling of combus-waste deposited before the implementation
tible waste
of the ban on landfiling of combustible
waste. The WEM scenario is thus based
on a continuation of the model for land
filling of combustible waste until 2030
(IPCC, 2006; FOEN, 2017a). The share of
CH. flared reaches a value of 10 per cent
by 2030 (current value eight percent).
Wastewater handling
WEM
Biogas production
Emissions from wastewater handling are
assumed to scale with the evolution of
population.
It is assumed that increased demand for
biogas leads to the construction of 336
additional biogas facilities by 2030 (Prog
nas, 2012). Accordingly, the total number
of biogas facilities reaches 236 by 2020
and 461 by 2030, with a related increase of
fugitive emissions over the coming years.
WOM
It is assumed that the ban on landling of
combustible waste was not implemented.
Consequently, the amount of waste
disposed of at waste disposal sites under
the WOM scenario follows the same
evolution as under the WEM and WAM
scenarios until 1999, but then only de
creases to 10 per cent of this value by
2020, remaining constant thereafter. It is
further assumed that the share of CH.
recovered for power production (on total
CHi produced) is the same under the
WOM scenario as under the WEM and
WAM scenarios (the share decreases
disproportionately as the cost-income ratio
is changing for the worse with decreasing
CH production of the waste disposal site).
Finally, it is assumed that the share of CH
flared remains constant at 3.5 per cent
from 1990 to 2030.
Same as for the WEM scenario.
It is assumed that the amount of biogas
upgraded under the WOM scenario
compared to the amount of biogas upgrad-
ed