出版社：Instituto de Pesquisas Ambientais em Bacias Hidrográficas
摘要：The study reports the performance of a sanitary effluent treatment constituted by a septic tank, anaerobic filter and constructed wetland.The study monitored nutrient’s, carbonaceous material’s and thermotolerant coliform’s (CT) removal efficiency during 12 months.The treatment system included a septic tank, an anaerobic filter and a horizontal subsurface flow constructed wetland cultivated with Typha spp.Effluent samples were monthly collected before and after the septic tank, anaerobic filter and wetland.The removal efficiency for N-NH 4 was 37.6%, 66.3% for total P, 37% for COD, 54% for BOD and 99.4% for CT.The anaerobic filter and wetland were more efficient than the septic tank.P-total reduction was higher in the constructed wetland than in the anaerobic filter.Climatic conditions influenced the evaluated constituent’s removal being the highest values during hot months.
