MONITORAMENTO DO DESEMPENHO DA TEMPERATURA DE ÁGUA RESIDUÁRIA TRATADA POR VALA DE FILTRAÇÃO

• DOI: https://doi.org/10.22533/at.ed.933112427097

• Palavras-chave: Impacto Ambiental, Saneamento, Contaminação, Esgoto.

• Keywords: Environmental Impact, Sanitation, Contamination, Sewer.

• Abstract: With population growth accompanied with greater production needs to keep up with growing demand, water expenditures have grown exponentially. It is increasingly necessary to minimize the environmental damage that is generated and consequently the lack of water for public supply. The lack of basic sanitation, especially in rural areas, leads to a greater need for new studies that allow the treatment and reuse of water from sewage in reuse activities. The present research adopted a filtration trench system of three acrylic boxes with a stone layer of 0.20 m and complementary layers of sand of thickness: 0.75 m; 0.50 m and 0.25 m, to monitor the behavior of sewage temperature in the purification process. The system was installed in the experimental field of UNICAMP. Analyzes of the sewage in natura (without treatment) and after the decontamination process were carried out in each of the ditches during 5 days of monitoring. The study found that the temperature obtained by the treatment was reduced to about 3 o C less in the 75 cm (V1) filtration trench, while the 25 cm (V2) and 50 cm (V3) trenches had decreases around of 1 o C and 0.8 o C, respectively.