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Fluidized Bed Waste Incinerators Seminar Report



In modern industrialized society, large quantities of waste are produced. In the EU27, about 2600 Mton of waste were generated in 2008, corresponding to 5300 kg/capita. Municipal solid waste (MSW) collected by or on behalf of municipalities and including waste produced by households and similar waste from e.g. offices and small business amounts to 520 kg/capita . In Europe, MSW thus corresponds only to about 10% of the total waste generated .Annual MSW production worldwide ranges from 350 to1200 kg MSW/capita in high- income countries, from 250 to550 kg MSW/capita in medium-income countries and from 150 to 250 kg/capita/year in low-income countries .Under the industrial wastes, sludge holds an important position for the purpose of this review .In most countries, controlled and uncontrolled landfill of waste is the main final disposal method. In contrast to MSW, which is suitable for incineration with energy recovery as a result of its 70% combustible organics content, industrial waste is mostly inorganic which makes recycling and landfill more suitable treatment options than incineration. Densely populated industrialized countries generally try to divert recyclable and combustible waste from landfill, initially to reduce land are as occupied by landfills, and more recently driven by the increasing awareness for resource conservation and climate change. Indeed, recycling and energy recovery from non- recyclable combustible waste alleviates the use and dependence of fossil fuel and of other resources.

Increasing amounts of waste are produced in the world, yet large geographic differences regarding sources and kinds of waste exist. The decrease of landfill opportunities instigates a growing importance of thermal treatment, aiming at volume reduction of the waste, at the destruction, capture, and concentration of hazardous substances, and evidently at the recovery of energy (WtE).The design of fluidized bed waste incinerators needs to proceed according to a set strategy. The formation of pollutants in FBCs depends on operating conditions as well as on fuel properties. It is crucial to minimizing the pollutants in the combustion gases. There are also some operating problems while working of a waste incinerators like agglomeration, sintering. For the efficient working of an incinerator these problems should be minimized.







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