Obtenção e caracterização de hidroxiapatita a partir de ossos de peixe da Amazônia

Abstract

In the state of Amapá, fish companies and marketers discard waste from the filleting technique, producing daily tons of deprecated organic material in inappropriate places or in the landfill. The result is the rapid decay and formation of slurry, of great social and environmental concern. Through a process of calcination of fish bones at high temperature, hydroxyapatite (HAp) is formed. Fish bones from the Amazon were used and, after cleaning to completely remove organic material, they were subjected to a temperature of 900 °C in a muffle furnace and ground by means of a mortar until a powder was obtained. For the characterization of hydroxyapatite, the material was intended for X-ray Diffraction (XRD) and X-ray Fluorescence analysis. In addition, particle size distribution was performed by laser granulometry and scanning electron microscopy (MEV). The tests performed in the laboratory propose a broad view of the application of hydroxyapatite mineral in the industrial segment, besides attracting future research in the search for the best application of the mineral in other branches, in order to minimize the environmental liability present in the region.