Abstract
The use of environmentally friendly technologies such as non-conventional wastewater treatment technologies are an alternative for decentralized populations. Vertical flow subsurface wetlands are an example of this, these systems use emergent substrates according to the availability of the resource in the area of implantation, have low operation and maintenance costs and do not require specialized personnel. In the present investigation at microcosm scale, the removal of organic matter and nutrients from an urban wastewater is evaluated by means of a vertical flow pilot plant implanted with substrate (coarse gravel, volcanic rock, fine gravel and a mixture of peat with organic fertilizer) and planted with the macrophyte of the species Iris pseudacorus. Tests were conducted with hydraulic loading rates ranging from 0.2 to 3 L min-1 and their efficiency was evaluated by analyzing NH4+, Fe, Ca, Al, P, free and total Cl-, BOD5 and solids present. The highest BOD removal efficiency was obtained with 0.2 L min-1 removing 84%, while for NH4+ and PT with 60% and 42%, respectively. The average removal rates for TSS and ST were 71 and 65%, while for Ca, Fe and Al were 80, 53 and 63%, respectively. It is concluded that it is feasible to use this technology with Iris Pseudacorus in wastewater treatment.
| Translated title of the contribution | Análisis de eficiencia de una planta experimental de humedales subterráneos de flujo vertical para el tratamiento de aguas residuales |
|---|---|
| Original language | English (US) |
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | Brazilian Journal of Animal and Environmental Research (BJAER) |
| Volume | 6 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Jun 2023 |
Keywords
- Modelos cinéticos
- Humedal artificial
- Dbo5
- Iris pseudacorus
- Remoción
CACES Knowledge Areas
- 217A Environmental Protection Technology
