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Modelling of constructed weilands Treating poiluted waters
MARIA TERESA ALARCON HERRERA
Acceso Abierto
Sin Derechos Reservados
Arsénico
The presence of high arsenic (As) concentrations in drinking water has been declared as a major risk to human health in many parts of the world (Lidvremont et al., 2009). The best available technologies candidates for drinking water treatment are basically based on physical and chemical processes: filtration, coagulation, ion exchange and reverse osmosis. Their efficiencies in terms of reducing As concentrations from water are high, but the most important drawback is that their costs are sometimes prohibitive. An economically viable and alternative option of treatment is the constructed wetland (CW) technology (Alarcon-Herrera et al., 2011). CWs have been used for the treatment of a wide set of water (Vymazal, 2011). However, there still exist some lacks of knowledge about the performance of CW systems treating polluted waters, basically due to the degradation and retention of water contaminants in these systems Involves a large number of physical, chemical and biological processes that take place simultaneously. This together with the complex interactions between water, granular media, macrophytes, litter and detritus, and microorganisms makes difficult the understanding of subsurface flow constructed wetlands (SSF CWs).
2012
Memoria de congreso
Inglés
OTRAS
Versión revisada
submittedVersion - Versión revisada
Appears in Collections:Artículos de Congresos

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