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handle: 10902/1207
RESUMEN: La meta de esta tesis es impulsar las tendencias de desarrollo de la industria química que promueven la sostenibilidad de la misma. El objetivo es un control integrado de la contaminación que permita reducir las emisiones a fin de promover las actividades de producción sostenibles. En este sentido, el tratamiento de efluentes industriales con fluoruros consiste en una precipitación química. Sin embargo, el proceso genera elevadas cantidades de lodos con elevada humedad y bajo riqueza en fluoruro cálcico, por lo que su reutilización en la fabricación de HF no es viable técnica y económicamente. En esta tesis se presenta la recuperación de fluoruros de aguas industriales fluoradas mediante cristalización en un reactor de lecho fluidizado. Las principales ventajas de esta tecnología respecto del tratamiento convencional son la no generación de lodos, la reducción de residuos y la recuperación de fluoruro para su posterior valorización.
ABSTRACT: The aim of this thesis is to support the trends of the chemical industry development that promote sustainability. The goal is an integrated pollution control to reduce the emissions in order to promote sustainable production activities. In this sense, the common methods for fluoride removal from industrial wastewater involve chemical precipitation. The process generates large amounts of a water rich sludge requiring disposal with increasing costs. Due to the high water content and the low quality of the sludge, reuse of fluoride is not an economical option. The removal of fluoride in a fluidized bed reactor by crystallization has been presented in this thesis as an alternative to the chemical precipitation. When it is compared with the conventional precipitation process, the major advantage of this new clean technology is the elimination of sludge formation, the materials recovery and the reduction of solid waste.
Reactor de lecho fluidizado, Control integrado de la contaminación, Valorization, Valorización, Fluoruro cálcico, Cristalización, Fluoruro, Sustainable development, Fluidized bed reactor, Integrated pollution control, Crystallization, Fluoride, Calcium fluoride, Desarrollo sostenible
Reactor de lecho fluidizado, Control integrado de la contaminación, Valorization, Valorización, Fluoruro cálcico, Cristalización, Fluoruro, Sustainable development, Fluidized bed reactor, Integrated pollution control, Crystallization, Fluoride, Calcium fluoride, Desarrollo sostenible
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