Different methods for waste to energy transformation

In the past 25 years, many technological developments have taken place in the thermal treatment of Municipal Solid Waste (MSW). Apart from the initials goal of the technology (i.e., volume reduction and inertisation), flue gas emissions, solid residues, energy efficiency and economics became important aspects. Besides further development of the existing technologies, alternative specialised technologies are being developed; every one of these techniques has its own advantages and disadvantages; there is no clear winner. Important is that, apart from fluidised bed combustion, the alternatives still have to be demonstrated on a large scale over an extended period of operation. Another alternative, the co-combustion of specific waste streams in processes (such as electricity plants and cement kilns) is becoming more popular and is already being demonstrated on a large scale. Upon selection of the optimum Energy from Waste (EfW) system, many aspects have to be taken into consideration. The main goal, however, should be the optimisation of the total waste management system of which MSW streams and EfW technology are only parts. The choice of such a complex system is not easy. It depends on, for instance, the emphasis that is placed on energy efficiency, environment, reuse of materials, economics and circumstances such as options for separate collection, etc. We will present you with studies in that field that combine thorough knowledge of the technological possibilities with that of chain analyses.