Nutrient removal from domestic wastewater with Sagittaria latifolia and Sagittaria lancifolia in free-flowing constructed wetlands

  • Nancy Estrada Pérez Universidad Juárez Autónoma de Tabasco
  • Gaspar López Ocaña Universidad Juárez Autónoma de Tabasco
  • Rudy Solís-Silván Tecnológico Nacional de México
  • Raúl Germán Bautista-Margulis Universidad Juárez Autónoma de Tabasco
  • Carlos Alberto Torres Balcázar Universidad Juárez Autónoma de Tabasco

Abstract

Constructed wetlands (CW) represent an economically, socially, and environmentally viable solution for wastewater treatment. The present investigation evaluates the removal efficiency of phosphorus (TP), nitrogen (TN) and chemical oxygen demand (COD) in domestic wastewater using aquatic macrophytes Sagittaria latifolia and Sagittaria lancifolia in free-flow constructed wetlands. The treatment system is composed of a domestic wastewater distribution tank and nine free flow constructed wetlands (FFCW) of which three contain S. latifolia, three S. lancifolia and three without vegetation (control). The parameters evaluated were raw water temperature (26 ± 1.6 °C), CW with S. latifolia (26.24 ± 0.94 °C), CW with S. lancifolia (27.25 ± 0.47 °C) and the control (25.97 ± 0.82 °C); pH of raw water (7.8 ± 0.4 UpH), CW S. latifolia (7.72 ± 0.06 UpH), CW with S. lancifolia (7.53 ± 0.11 UpH) and control (7.97 ± 0.22 UpH); total phosphorus (TP), of raw water (14.37 ± 1.7 mg/L), CW S. latifolia (0.50 ± 0.22 mg/L), CW with S. lancifolia ( 0.89 ± 0.10 mg/L) and the control ( 3.88 ± 0.63 mg/L); total nitrogen (TN), from raw water (82.94 ± 11.4 mg/L), CW S. latifolia (2.91 ± 1.3 mg/L), CW with S. lancifolia (5.4 ± 0.9 mg/L) and the control (30.28 ± 2.5 mg/L). COD from raw water (970.84 ± 115 mg/L), CW S. latifolia (29.55 ± 10.81 mg/L), CW with S. lancifolia (59.62 ± 5.88 mg/L) and the control (218.92 ± 35.43 mg/L); For the experiments using S. latifolia, here we show that removal efficiencies for TN, TP and COD were 97%, 93% and 96% respectively; with TN, TP, and COD removal efficiencies of 97%, 94%, and 93% observed for S. lancifolia.
Published
2025-01-27
How to Cite
Estrada Pérez, N., López Ocaña, G., Solís-Silván, R., Bautista-Margulis, R. G., & Torres Balcázar, C. A. (2025). Nutrient removal from domestic wastewater with Sagittaria latifolia and Sagittaria lancifolia in free-flowing constructed wetlands. CIBA Revista Iberoamericana De Las Ciencias Biológicas Y Agropecuarias, 14(27). https://doi.org/10.23913/ciba.v14i27.128
Section
Artículos Científicos

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