Análise comparativa de viabilidade técnica e econômica dos sistemas de tratamento de esgoto doméstico convencional e ecofossa

Abstract

Sewage treatment is a fundamental issue for public health and the environment, as inadequate disposal of effluents can cause serious environmental impacts and risks to human health. Several technologies have been developed and improved over the years to make sewage treatment more efficient and sustainable. This research emphasizes the effectiveness of the eco-septic system in comparison with the traditional domestic sewage treatment system in urban areas, reducing the negative impacts resulting from the discharge of untreated effluents into water bodies. To this end, a case study was carried out based on a case in the Municipality of Goiânia with 43 housing units, based on the technical standards of ABNT 7.229/93, 13.969/97, 12.209/2011, 8160/97, 11887/2015 and NT11 of the CBM -GO. However, the results demonstrated on a technical basis that the eco-septic tank is technically superior in terms of removing organic matter and, in terms of financial aspects, despite the system being more expensive, in a long-term estimate it becomes viable, therefore, we concluded that the eco-septic system is better. Technically, it is more expensive in the short term, but considering the useful life of 40 years we have a long-term analysis that makes it financially viable in comparison to the traditional septic tank.