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www.ireng.org ®


Technical Paper WASTE-TO-ENERGY APPLICATION


Author: L. San-Miguel, Saint-Gobain Research Provence, 550 avenue Alphonse Jauffret, 84300 Cavaillon, France Conference: Institute of Refractories Engineers Annual Conference, 14th November 2018, Tankersley Manor, UK


Context: Waste-to-Energy Markets and Stakes


Over the last decades, huge amounts of waste resulted in increasing public concerns; leading to the subsequent health and environmental impacts. At present, approximately 70% of Municipal Solid Waste (MSW), still ends up on landfills or uncontrolled dumpsites; which often contaminate surface water, ground water, or soil, and emit greenhouse gases [13]


. Waste-to-


Energy (WtE) facilities based on steam generating units (boilers) have proven to be a reliable option, solving not only the pressing waste disposal


problems but also to meet simultaneously environmental, sustainability and compensate shortage of other energy sources.


Ten years ago, WtE in the UK represented less than 10% of the overall waste disposal against 90% for waste landfill. Hopefully, the situation is expected to turn around soon with, for the first time, a proportion of waste balanced between landfill and WtE alternatives [1]


. Mid 2017, 52 WTE plants


were operated in the UK with an overall capacity of 11.5 MT/year. Nearly 65% of the UK capacities are under 10 years of age.


REFRAX , IMPROVED SIC &


Figure 1: Waste hierarchy UK Residual Waste Market Tonnages Processed


Graph 2: Total tonnage of Waste accepted in WtE between 2006 to 2017 in UK


Graph 1: Evolution of the residual waste management segmentation in UK from 2008 to 2018 (E = Estimated, P = Provisional, EfW = Energy from Waste) [1]


January 2019 Issue


Source: Annual Performance Report either provided by operators or released under the Freedom of Information Act. [1]


ENGINEER THE REFRACTORIES 17


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