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2622427 
Book/Book Chapter 
On the characterization and control of trace heavy metals in the submicron range aerosol from a MSWI boiler 
Pena, E; Aguirre, JJ; Astarloa, S; Elcoroaristizabal, S; Legarreta, JA; Gutierrez-Canas, C 
2010 
Chemical Engineering Transactions 
22 
125-130 
WOS:000286970200020 
The final aim of this work is to reduce the environmental emissions from a municipal sewage sludge incineration line [MSWI] by the development, implementation and systematic application of the concepts, instrumental techniques and paradigms of the aerosol science and technology. Therefore, it is focused in a systematic approach to further optimize the off-gas line according to the criteria of prevention, inhibition and control of trace pollutants. Previous results show how low emission values of both total particles and metallic aerosol (mass basis) are compatible with occasional and unexplained outliers of PCDD/Fs (dioxins and furans) emissions. Poor or incomplete combustion, the presence of chlorine or hydrogen chloride in the gas phase, the presence of some metals -in particular Cu involved both in the formation of highly effective chlorination species- and the provision of active surfaces of fine particle have been identified as the main factors leading to PCDD/Fs formation and release (Lee, 2008). An efficient continuous monitoring of the plant performance, penetration of the submicron aerosol through the filtration system and the fine fraction copper content (approximate to 0,8 mu m) are needed to control both these emissions and PCDD/Fs occasional emissions.