VEGETAL SPECIES EFFICIENCY ON WASTEWATER TREATMENT

Authors

  • Rogério de Araújo Almeida
  • Luiz Fernando Coutinho Oliveira
  • Huberto José Kliemann

Keywords:

Wastewater treatment, constructed wetlands, rootzone

Abstract

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.

KEY-WORDS: Wastewater treatment, constructed wetlands, rootzone.

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Author Biography

Rogério de Araújo Almeida

Escola de Agronomia e Engenharia de Alimentos, Universidade Federal de Goiás, Caixa Postal 131, CEP 74001-970 Goiânia, GO.

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Published

2007-10-09

How to Cite

ALMEIDA, R. de A.; OLIVEIRA, L. F. C.; KLIEMANN, H. J. VEGETAL SPECIES EFFICIENCY ON WASTEWATER TREATMENT. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 37, n. 1, p. 1–9, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/1839. Acesso em: 25 nov. 2024.

Issue

v. 37, n. 1, Jan./Mar. 2007

Section

Research Article

License

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