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- Title
Acúmulo de nutrientes por forrageiras cultivadas em sistema de escoamento superficial para tratamento de esgoto doméstico.
- Authors
Azevedo Nazário, Aline; de Oliveira Garcia, Giovanni; dos Reis, Edvaldo Fialho; de Sá Mendonça, Eduardo; Guilherme Bergamim Melline, José
- Abstract
It is evident today that water quality is declining. This deterioration is mainly due to population growth and several aspects of agro-industrial production. This work therefore aimed to evaluate the performance of three forage species which are used for the treatment of domestic sewage (DS) applied to the soil via the superficial runoff technique. This experiment was conducted at the Agrarian Sciences Center of the Federal University of Espírito Santo, Brazil using a completely randomized design experimental delineation, with three replications in a split plot technique 3x5x2. The plots were composed of Brachiaria brizantha cv. Marandu, Cynodon sp. cv Tifton 85 and Paspalum atratum cv. Pojuca, with five levels of effluent application rates in the subplots: 7.91, 15.81, 23.72, 31.63 and 39.54 kg ha-1 day1 BOD. Two cuts of the plant material were done at 28-day intervals after the treatment application. The results showed that nutrient accumulation by the forage was higher than that reported in literature for Marandu grass, Tifton 85 and Pojuca. These results highlight the potential of these grasses on wastewater treatment, especially DS effluent.
- Subjects
WATER quality management; BIOLOGICAL nutrient removal; FORAGE; RUNOFF &; the environment; EFFLUENT quality
- Publication
Revista Ambiente e Água, 2014, Vol 9, Issue 1, p97
- ISSN
1980-993X
- Publication type
Article
- DOI
10.4136/ambi-agua.1210