Pré-dimensionamento de estação de tratamento de esgoto para o campus UTFPR-LD

Abstract

The term 'decentralized treatment' refers to the location of water or effluent treatment near the point of generation. Opting for a decentralized treatment system installed at the educational institution promotes a research environment and exemplifies good practice. Despite the population occupying the UTFPR Campus in Londrina having seasonal presence, effluent generation is considerably low, and the pre-dimensioning of the treatment station for a small-sized university satisfies the generated demand. The present pre-dimensioning project comprises three treatment phases: a preliminary one, which removes coarse residues; a primary treatment, responsible for removing sedimentable solids and suspended solids; and a secondary treatment, which performs organic matter removal through anaerobic digestion. The university's sanitation committee provided data on the flow generated by blocks A, B, K, L, and RU, and this data was processed to generate minimum, average, and maximum flow values for the months of August through December. Due to the low flow rate, small values were obtained for the dimensions of the ETE. The calculations were done manually, and the results were confirmed using the Excel program to ensure precision in the obtained values. Currently, the effluent generated at the university is sent to the city's sanitation company. Therefore, the third phase of treatment, which aims at removing pathogenic organisms, may be dispensable.