Author(s)

T. C. Clifford

Abstract

Based on a real case study this paper will set out a methodology for appraising different waste management solutions using cost benefit and multi-criteria analysis to shortlist the most appropriate solutions. The paper will also describe a MS Excel based model used to calculate and compare net cashflow for each shortlisted option. The paper will provide a step by step guide to options appraisal and the selection of the preferred solution using real data. The results will demonstrate how the mix of recycling, energy recovery and residual waste disposal, the technology choice and maximising electricity or energy output all impact of the ranking of the options. For the case study the ranking results will set out the conclusion from this particular options appraisal, which will be explored with regard to key sensitivities to illustrate the most significant factors in the options appraisal process. Keywords: waste, waste management, options appraisal, forecast, scenario, cashflow, case study, model, spreadsheet, sensitivity analysis. 1 Introduction This paper sets out a process for the appraisal of different waste management options and is based on a real case study from the Middle East. The process uses a number of different techniques and spreadsheet based models to assist with the identification of the preferred option for these particular circumstances.

Keywords

waste, waste management, options appraisal, forecast, scenario, cashflow, case study, model, spreadsheet, sensitivity analysis