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dc.contributor.authorTangerino, Edson Pereira [UNESP]
dc.contributor.authorTavares, Marcelo Botini [UNESP]
dc.contributor.authorOrtiz, Iván Andrés Sánchez
dc.identifier.citationRevista Tecnica de la Facultad de Ingenieria Universidad del Zulia, v. 35, n. 1, p. 40-51, 2012.
dc.description.abstractSlow sand filtration is an efficient water treatment technique used for treating surface water with relatively low levels of contamination. Despite the slow sand filtration at pathogen, algae and cyanobacteria removal efficiency, it has some restrictions in relation to the required area for slow filters, and the cleaning activities for the filters and the stone pre-filters when used in the treatment. This research evaluated during 120 days the use of non woven & sand pre-filtration columns as part of a slow filtration process for the apparent color, turbidity, algae, cyanobacteria, phytoflagellates and diatomaceous. The columns shown an efficient removal of the monitored parameters and demonstrated as a vantage their faster and easier cleaning process and less awkward than the required to the stone pre-filters. The turbidity removal efficiency increased progressively during the experiment, especially after the first 35 days of the start; the apparent color removal by the pre-filtration columns was of 85%, and working together with the polishing of activated carbon columns was up to 95; the diatomaceous, phytoflagellates, algae and cyanobacteria removal by the columns achieve a weekly average of 95%, it's recommended to use filtration rates lower to 1,5m 3/m 2/d.en
dc.relation.ispartofRevista Tecnica de la Facultad de Ingenieria Universidad del Zulia
dc.subjectMultiple-stage filtration
dc.subjectPre-filtration vertical columns
dc.subjectSlow filtration
dc.subjectWater treatment
dc.titleUtilización de columnas verticales de filtración de manta y arena como pre-tratamiento de un sistema de filtración lentaes
dc.title.alternativeSynthetic non-woven fabrics & sand vertical filtration columns as a slow filtration pre-treatment systemen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidad de Nariño. Torobajo
dc.description.affiliationDepartamento de Ingenieria Civil Universidad Estatal Paulista Julio de Mesquita Fúho (UNESP)
dc.description.affiliationDepartamento de Recursos Hidrobiológicos Universidad de Nariño. Torobajo, Pasto, Nariño
dc.description.affiliationUnespDepartamento de Ingenieria Civil Universidad Estatal Paulista Julio de Mesquita Fúho (UNESP)
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