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Treatments of polluted emissions from incinerator gases: a succinct review

Abstract : Due to the incomplete mineralisation of some organic compounds during the incineration of municipal solid waste, gaseous emissions are loaded with a large amount of particulate matter, undesirable elements and toxic molecules. Typically, an incinerator of urban solid waste produces large flows of hot gaseous emissions to be purified before being released into the atmosphere. In this paper, treatments of flue gas from a typical municipal waste incinerator are described. The first step is an energy recovery system through heat exchangers to make steam or hot water. Steam is used to produce electricity via a turbine. The economic balance of the total system is very often dependent on the heat recovery. The second step involves particle removal technologies. Different systems are available such as cyclones, scrubbers, electrostatic precipitators or baghouse filters. The third step is the removal of numerous molecule families such as acid compounds (SOx, HCl, HF), nitrogen oxides (NOx), metal species and many organic compounds. The latter include dioxins, furans and volatile organic compounds. Some treatment processes are described according to the pollutant family.
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Submitted on : Friday, October 11, 2013 - 2:14:36 PM
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Pierre Le Cloirec. Treatments of polluted emissions from incinerator gases: a succinct review. Reviews in Environmental Science and Bio/technology, Springer Verlag, 2012, 11 (4), pp.381-392. ⟨10.1007/s11157-012-9265-z⟩. ⟨hal-00872203⟩



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