Aplicação de nanopartículas a partir do método de síntese verde em filtros de carvão e sua viabilidade comercial

Abstract

Sustainability is currently a focus of great commercial and industrial importance, as are ways to improve its management. Within this context, economic viability and factors attributed to management in research development bring positive ways to achieve promising scenarios within the commercial context. Thus, nanotechnology is an area that is mostly restricted to the development of pure science, but there are few opportunities where materials on the nanometric scale reach the industrial scale of application. Within this context, this proposal aims to improve the coal impregnation process in order to obtain metals and metal oxides in the form of nanoparticles, which have a high surface area as adsorbents, with a view to commercialization. Thus, characterizations are assigned aiming at their morphological and chemical composition with the application of Scanning Electron Microscopy (SEM) and X-ray. The conclusion of the proposal is based on the characterization focused on material impregnation processes and removal efficiency, diuron herbicide, in order to verify the efficiency of the adsorbent against this pollutant, based on the use of the CuO-NPs obtained and costs related to their productive application in a semi-industrial context focused on economic factors and financial return. Regarding the equilibrium study for emerging contaminant analysis, it was applied to the herbicide diuron, with a removal value of de 54,28 mg g-1, which generated an average removal of 84.4% of diuron. Given the approach regarding the procedures adopted, effective improvements in the reduction of contaminants present in water were observed. However, the financial application resulting from productive cost actions involving CuO-NPs nanoparticles establishes a good relationship with the methodology addressed, especially in terms of financial investment, with variable costs of R$ 88.00/kg/day and daily production of 14.7 kg/day based on production over a period of 200 days when related to the BreakEven Point (BEP).