SPECTROSCOPIC CHARACTERIZATION FROM FISHERY RESIDUES AND APPLICATION IN THERMO-CHEMICAL PROCESSES

Abstract

Replacement even partial, for using of fossil fuels by renewable sources for the energy production has been discussed worldwide. Fossil fuels account for most of the pollutants emissions into the atmosphere, which cause environmental damage and contribute significantly to climate changes and problems of humanhealth, animals and plants. São Luís (MA)municipality, as well as several Brazilian cities, faces a large environmental problem, which is disposal of solid urban wastes from commercial establishments and service providers. The Maranhão State coast produces a fish typesvariety, which generate a large amount of waste, such as viscera and/or fish scales, which are often discarded in a disordered and/or unplanned manner in inappropriate places. Within this scenario, this research investigated the energy utilization of a collagenous biomass supplied by a fishery in São Luís (MA) city, when it is submitted to combustion (synthetic air) processes for the bioenergy generation. Physicochemical properties from fish scales were evaluated by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES). The results obtained by means different spectroscopic techniques indicated that fish scales presented physicochemical properties, which makes them strong candidates for a possible application in thermal processes with bioenergy purposes.