Pré dimensionamento de lagoa de maturação para pós-tratamento de efluente de cervejaria

Abstract

The treatment of industrial effluents is, in most cases, essential for their final disposal and compliance with the standards of current environmental legislation. When many industrial plants expand their production, they overload the existing treatment systems, impairing the quality of the final effluent, releasing it in disagreement with the legislation and suffering due sanctions. In this way, many factories need to update their effluent treatment system to mitigate the environmental impact and adjust its release. In this way, decision-making by managers is necessary in choosing the best alternative considering technical and economic aspects. Thus, the present work comprises the dimensioning of a maturation pond used for post-treatment of effluent from a brewery with physical-chemical characteristics that do not meet the release standard of the State of Paraná. The choice of such technology was made considering the characteristics of the effluent, the location of the ETE in use, its operational simplicity and low cost of construction and operation. It was observed after the development of the research that the maturation ponds can be alternatives for the treatment, but because of the nature of the effluent to be treated, the system does not offer the necessary security for the decision making.