Estudo de remoção de nitrogênio amoniacal de águas residuárias, aplicando material com propriedades adsorventes sintetizado a partir de subprodutos industriais

Abstract

Faced with economic and population growth, the generation of industrial waste is a reality. The adequate adjustment of these solutions is a worldwide problem, and with that, alternatives are sought for the reuse of waste that are economically viable. components of the environment are several by the environmental area, and human water affected by other environments, a component responsible for causing damage to health, as well as in the protected environment. There are several techniques for removing present in water, among them. Adsorption is a mass transfer phenomenon, in which a substance or element appears in a fluid and concentrated phase at a continuous interface. This work aimed to synthesize a material with solid adsorbent properties for application in the removal of water from ammoniacal nitrogen. For a synthesis, this work was based on the hydrothermal method, which is commonly used for the synthesis of aluminoslicate-type compounds and is present in the natural chemical crystallization processes for materials that have adsorbent properties, as well as zeolites. Since the desired product was of the aluminosilicate type, which has the property of performing a cationic exchange of cations, alternative sources of the elements silicon and aluminum were chosen. By-products used as a processing of aluminum ash in an industrial boiler being a source of silicon and sludge from an effluent station in the combustion stage being a source of treatment for flotation of material with properties for advertisements cationic compounds 15 materials were synthesized, which were tested in synthetic effluent prepared with ammonium sulfate (NH4)2SO4, at a real concentration of 166 mg/L. With what was designed, it was possible to affirm that the synthesized materials have adsorption capacity. The material that presented the highest amount of ammoniacal synthesizer was experiment 9, which presented a final result of 89.55 mg/L. With which it is possible to say that it is an applied technique of cost and sustainable since it reuses by-product of industrial processes, which can be considered low a sanitary landfill