COMPARATIVE OPERATIONAL STUDY IN DIFFERENT CONCEPTIONS OF ETEs IN FORTALEZA

Abstract

The article provides a critical analysis of the sewage treatment quality in Fortaleza, on the following STPs: Aracapé III, São Cristóvão and Almirante Tamandaré. The analyzed parameters were Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS). It was also verified the sampling variability of the effluents to sewage treatment, for the parameters BOD, COD and TSS. Analytical approaches were made through statistical treatment of the obtained data, as well as the contribution to the approximation of the design methodologies with changes of variables involved in the performance of the studied STPs. The adopted methodology was the qualitative and quantitative inspection and testing, of parameters, including assessment of operational efficiency and reliability.

Keywords: Reliability analysis; Sewage treatment; Environment.