Efficiency of geotextile filters in dewatering wastes (sludge) from water treatment works

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dc.contributor.authorUrashima, D. C.
dc.contributor.authorBernardes, G. P.
dc.contributor.authorVidal, D. M.
dc.contributor.authorKuwano, J.
dc.contributor.authorKoseki, J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:25:58Z
dc.date.available2014-05-20T15:25:58Z
dc.date.issued2006-01-01
dc.description.abstractThis paper evaluates the efficiency of geotextile filters for sludge from a compact water treatment plant (WTP). The key aspects required in the methodology of selection and designing geotextile filters for sludge from dewatering was investigated based on laboratory tests results. The analyses were supported by the measured filtrated volume of water and turbidity resulting from variable head permeability tests carried out in two geotextiles and using the conventional granular filter (sand and gravel). The results of the present study showed that more than 75% of the dewatering sludge can be filtrated with low turbidity, which permits that this water can return to the treatment plan in order to be reuse in another cycle. The reduced volume of sludge retained by the geotextile that is transferred to the drying pound increases its efficiency by reducing the drying time. The low volume of the dry waste can be removed and the geotextile can be easily cleaned or replaced when needed. These procedures significantly reduce the volume of water needed in dewatering and also avoids waste discharges in the environment.en
dc.description.affiliationSão Paulo State Univ, Dept Civil Engn, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Dept Civil Engn, São Paulo, Brazil
dc.format.extent519-522
dc.identifier.citationGeosynthetics, Vols 1-4. Rotterdam: Millpress Science Publishers, p. 519-522, 2006.
dc.identifier.lattes3526553928214195
dc.identifier.urihttp://hdl.handle.net/11449/36286
dc.identifier.wosWOS:000242400900084
dc.language.isoeng
dc.publisherMillpress Science Publishers
dc.relation.ispartofGeosynthetics, Vols 1-4
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectfilterpt
dc.subjectdewateringpt
dc.subjectdecantingpt
dc.subjectgeotextilept
dc.subjectwastespt
dc.subjectdesignpt
dc.titleEfficiency of geotextile filters in dewatering wastes (sludge) from water treatment worksen
dc.typeTrabalho apresentado em evento
dcterms.rightsHolderMillpress Science Publishers
unesp.author.lattes3526553928214195
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt
unesp.departmentEngenharia Civil - FEGpt

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Guaratinguetá - FEG - Faculdade de Engenharia e Ciências