Estudio teórico y experimental sobre el comportamiento electro-térmico de un aplicador quirúrgico de radiogrecuencia

Abstract

Consulta en la Biblioteca ETSI Industriales (Riunet)

[EN] Contaminated soils and different types of industrial waste are being produced in large quantities in the past years. To address this problem, appropriate treatments are needed before their disposal. Incineration or landfilling are some of the possible solutions. However, for some decades, co-processing has appeared as a strong alternative for several reasons. Co-processing is the utilization of any kind of waste material as alternative fuel and raw materials in resource-intensive industrial production processes, without changing the final quality of the product, in the purpose of energy and resource recovery. In terms of the cement production, contaminated soil is used as alternative fuel and raw material. This yields multiple benefits: energy and resources recoveries, and industrial waste treatment. It is considered by far, one of the most cost and sustainable solution for the disposal of waste produced by industrial activities. Nevertheless, the study of the possible contaminants, especially organic compounds, released from the combustion must be carried out to avoid possible pollution caused by co-processing. The temperature inside the clinker kiln reaches close to 2000°C, so most of the organic pollutants would be completely destroyed. The main concern is during the preheater/precalciner process, where temperatures are lower than 900°C, and some volatile organic compounds can be released, or even some can be produced, during the preheater/precalciner process depending on the parameters, such as temperature and residence time. For this reason, an air pollution control device (APCD) is located at the exit of the exhaust gases. In this current study, the granular activated carbon filter is considered as APCD, and Siggenthal plant from Holcim Company as the scenario. A life cycle assessment is completed in order to get the best solutions towards the problem of organic pollutants, when contaminated soil is fed as AFR, and assuming two options for system treatment, with and without activated carbon filter. In addition, different scenarios varying the amount of emissions from organic compounds have been assessed, required by the reason that the formation of organic compounds, specifically toxic compounds, is not fully clear described in recent papers. The impact of granular activated carbon filter and the impact of co-processing inside the clinker kilns is assessed in this master thesis in order to get reliable conclusion about the use of this filter as APCD. In addition, the impact of co-processing is analyzed to be able to compare it with other kind of treatment system, regarding contaminated soils or other kind of waste treatment.