Eficiência de espécies vegetais na purificação de esgoto sanitário
Carregando...
Data
2007-03
Título da Revista
ISSN da Revista
Título de Volume
Editor
João Batista Duarte
Resumo
The objective of this study was to evaluate the efficiency
of substrates and vegetal species to treat sanitary wastewater, in
a subsurface downward flow root zone system, after previous
decantation. The experiment was carried out at Samambaia
Campus, Federal University of Goiás, Goiânia, Goiás State,
Brazil. The vegetal species were narrow-leaf cattail (Typha
angustifolia L.), white ginger (Hedychium coronarium J. König),
Job's tears (Coix lacryma-jobi L.), and para grass (Urochloa
mutica (Forssk.) T.Q. Nguyen). The system revealed to be efficient
on wastewater pollutants removal, meeting the effluent standards
established by current Brazilian regulation, except for ammoniumnitrogen.
Narrow leaf cattail and white ginger showed to be more
efficient on BOD reduction, substrate oxygenation, and
ammonium-nitrogen and coliforms removal. Narrow leaf cattail
was more efficient on phosphate removal. The efficiency on
coliforms removal reached levels close to totality. Coconut fibre
was the less efficient substrate for BOD and COD reduction and
withdrawal of ammonium-nitrogen and coliforms.
Descrição
Palavras-chave
Tratamento de esgotos, Alagados construídos, Zona de raízes, Wastewater treatment, Constructed wetlands, Rootzone
Citação
ALMEIDA, Rogério de Araújo; OLIVEIRA, Luiz Fernando Coutinho de; KLIEMANN, Huberto José. Eficiência de espécies vegetais na purificação de esgoto sanitário. Pesquisa Agropecuária Tropical, Goiânia, v. 37, n. 1, p. 1-9, jan./mar. 2007. Disponível em: <https://www.revistas.ufg.br/pat/article/view/1839/1751>.