Evaluation of the wastewater brewer's Hatuey in period of pandemic

Abstract

The Brewery Hatuey takes more than 94 years of exploitation contributing to the contamination of the river Yarayó and the bay of Santiago from Cuba. In the 2020 due to the pandemic were carried out modifications in the products to elaborate what influenced in that the DBO5 overcame in 4,52 times and the DQO in 6,88 times the permissible maximum limits settled down by the normative Cuban for to pour of residual waters to terrestrial waters and the sewer system. It was evidenced that the concentration of heavy metals, electric conductivity, as well as the nitrogen content and match stayed inside that settled down by to pour norm and that although the norm settles down that it should not exist suspended solids superior values they are reported to the 100 mg/L. A parameter that overcomes in 7,4 times what indicates the Cuban norm is the fats and oils, for what intends the installation of a float associated to the technological proposal of treatment that exists for this industry. It will also be necessary to neutralize the residual.