Feasibility of energy recovery from municipal solid waste in an integrated municipal energy supply and waste management system

摘要

Integrating the existing energy supply and waste management systems in an economically feasible manner may not be an easy task. The investment on an EfW plant has to have a realistic pay-back period. If the energy produced by using WDF is sold at the 'normal price', the money to amortize the investment has to come from either the savings achieved in the primary fuel use or from the other direction of the process chain, 'with the fuel'. In other words, if the savings in the primary fuel use will not cover the investment, the waste-based fuel has to have a negative price at the gate of the EfW plant.rnCalculations with the SISMan-model were carried out for five different WDFs, including non-segregated MSW as one of the fuel options. The other four studied options were different WDFs classified according to the level of the MSW source separation. The aim of the calculations was to determine values for two main variables for each WDF type.