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Biogasanvändning vid Käppalaförbundets Reningsverk

? en värdering av miljöeffekter


This thesis calculates and compares the values of improved environmental quality due to future possible investment alternatives in biogas production facilities at Käppalaförbundets Reningsverk (Käppala Sewage Treatment Works) in an attempt to determine which alternative yields the highest such value. Käppala faces three investment alternatives for the usage of biogas. The alternatives are production of vehicle fuel, district heating and thirdly, heat and power production. Estimates of the value of environmental change are calculated for each of the three investment alternatives, and these estimates are then compared. The environmental change in question is the change in discharge levels of carbon dioxide (CO2), nitrogen oxides (NOx), sulphur dioxide (SO2) and particle matter. It is shown that a heat and power plant solution provides the highest value of environmental change. In addition to the calculations, this thesis also provides an overview of the methods most widely used when measuring the benefits of environmental improvement.

Författare

Liselott Hammarlund

Lärosäte och institution

Handelshögskolan i Stockholm/Institutionen för nationalekonomi

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