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Título
The effect of vegetation harvest on the operation of a surface flow constructed wetland
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Water SA
Número de la revista
5
Datos de la obra
Álvarez, J. A., & Bécares, E. (2008). The effect of vegetation harvest on the operation of a surface flow constructed wetland. Water SA, 34(5), 645-649. https://doi.org/10.4314/WSA.V34I5.180664
Editor
African Journals Online (AJOL)
Fecha
2018
ISSN
0378-4738
Zusammenfassung
[EN] Constructed wetlands represent a low-cost and highly efficient municipal wastewater treatment alternative, due to their low technological and energy demands. Wetland vegetation releases an amount of carbon to the system, when it is decomposed (winter period). Part of this organic matter could remain in the system, and will be decomposed at very low rates during winter and spring. In this research, a constructed superficial-flow wetland was divided into two equal parts and vegetation (Typha latifolia) was harvested in one of them. The organic load applied to the system was 11.2 gBOD/m2·d. The control of the organic matter was carried out during 141 d (111 d in winter and 30 d in spring). Differences in efficiencies (TSS, BOD and COD), were observed between both types of the wetland, with an important increase in these differences during spring. Vegetation released organic matter to the system, specially suspended and biodegradable matter. BOD and TSS released per dry gram of Typha were 4.24 mgBOD/gTypha and 4.36 mgTSS/gTypha, respectively. Harvest is a recommended practice in systems treating diluted wastewater, especially in productive areas like the Mediterranean. The recommendations can also be applied to a broader geographic area
Materia
Palabras clave
Peer review
SI
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DOI
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