Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/43083
Title: Efficiency of horizontal subsurface flow-constructed wetlands considering different support materials and the cultivation positions of plant species
Other Titles: Eficiência de sistemas alagados construídos de escoamento subsuperficial horizontal considerando diferentes materiais suporte e posição de cultivo das espécies vegetais
Keywords: Água residuária
Consórcio de cultivares
Substratos alternativos
Alternative substrates
Plant consortium
Wastewater
Issue Date: Apr-2020
Publisher: Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
Citation: MIRANDA, S. T. et al. Efficiency of horizontal subsurface flow-constructed wetlands considering different support materials and the cultivation positions of plant species. Revista Ambiente & Água, Taubaté, v. 15, n. 2, e2476, 2020. DOI: 10.4136/ambi-agua.2476.
Abstract: The present work evaluated the influence of filling substrate material (crushed PET bottles or fine gravel) on the efficiency of pollutant removal in horizontal subsurface flow constructed wetlands (HSSF-CWs). They were cultivated with a consortium of elephant grass cv. Napier (Pennisetum purpureum Schum) and Tifton 85 (Cynodon spp.) to treat wastewater from a common milk cooling tank (WWMT). For this, six HSSF-CWs were used which had dimensions of 0.6 m tall x 1.0 m wide x 2.5 m long. In order to investigate possible efficiency loss in the removal of pollutants from the system, operation was divided into two periods: Period I (from April to December 2015) and Period II (April to December 2016). Thus, the removal efficiencies of BOD5, solids and total nitrogen (TN), total phosphorus (TP), potassium (K) and sodium (Na) from WWMT were statistically compared. Results indicated that the efficiency of the HSSF-CWs for removing pollutants increased or remained similar after one year and nine months of their operation; and PET bottles were a viable alternative substrate in HSSF-CWs based on the efficient removal of pollutants from WWMT during the one year and nine months of monitoring. Crushed PET bottles constitute a viable substrate for filling HSSF-CWs. Altering the cultivation positions of the plant species did not change pollutant removal efficiencies, but indicates the importance of species arrangement to maximize system performance.
URI: http://repositorio.ufla.br/jspui/handle/1/43083
Appears in Collections:DEG - Artigos publicados em periódicos
DRH - Artigos publicados em periódicos



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