Tratamento de esgoto doméstico por zona de raízes precedida de tanque séptico
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Data
2010
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Resumo
The use of plants to treat sewage is an efficient and of low cost alternative to conventional
systems. This study aimed to evaluate the efficiency of an experimental wastewater treatment
station of the type root zone, preceded by septic tank, at a house, in Goiânia, GO, Brazil. The
septic tank was designed according to NBR 7229 (ABNT, 1993). The root zone bed followed the
guidelines of Philippi and Sezerino (2004) and was planted with white ginger (Hedychium
coronarium J. König) and cattail (Typha angustifolia L.). Four months after the start of wastewater
application it was evaluated the percentage reduction on Biochemical Oxygen Demand (90.7%),
Chemical Oxygen Demand (81.1%) and Thermotolerant Coliforms (99.99998%). Considering the
studied attributes, the system was efficient in treating the wastewater, meeting the standards
established by the current Brazilian law.
Descrição
Palavras-chave
Fito-remediação, Águas residuárias, Alagados construídos, Fito-remediation, Constructed wetlands, Wastewater
Citação
ALMEIDA, Rogério de Araújo; PITALUGA, Douglas Pereira da Silva; REIS, Ricardo Prado Abreu. Tratamento de esgoto doméstico por zona de raízes precedida de tanque séptico. Revista Biociências, Taubaté, v. 16, n. 1, p. 73-81, 2010.