Obtención de harina de hueso mediante reutilización de desechos del pescado como fuente de fósforo

Abstract

This research aimed to determine the phosphorus content present in bone meal from fish waste, such as scales and bone, to evaluate whether it is viable as a source of phosphorus for further research in producing products based on this element. The study focused on reusing the organic solid waste present in the wholesale market of Riobamba since fish waste does not have an adequate management plan for its disposal. Therefore, the fish waste used chemical processes such as proximal analysis and phosphorus determination by UV-visible spectrophotometry. As a result, the percentage of phosphorus in the bones was 2.447% and 2.333% in the scales, which, according to the UNIT standard, are close to the maximum value of 3%. When expressed in P2O5 𝑃 2 𝑂 5

, these values correspond to 55.987% for the bone meal sample and 53.403% for the scale meal sample. This research concludes that the meal obtained from fish waste is a viable source of phosphorus. This phosphate source can lead to the formulation of phosphorus-based products within the area of chemistry; among them, a possible application can be its use as a raw material given the high P2O5 𝑃 2 𝑂 5

used in fertilizers.