Comparison of crushed rock sand and natural river sand as filter media for rapid filtration

The objective of this work was to evaluate the crushed rock sand (CRS) as a filter bed in rapid filtration for water treatment. The experiments were carried out using pilot-scale filtration units: one with a CRS filter bed and the other with natural river sand (NRS). Both filter media were prepared...

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Autores principales:	Bruno Moreno Ramos da Silva, Rafael Kopschitz Xavier Bastos, Pedro Kopschitz Xavier Bastos
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	drinking water treatment filter bed media head loss rapid filtration turbidity Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/afeaad3fff6c44609992c3c28632b181
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id	oai:doaj.org-article:afeaad3fff6c44609992c3c28632b181
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spelling	oai:doaj.org-article:afeaad3fff6c44609992c3c28632b1812021-11-06T07:04:53ZComparison of crushed rock sand and natural river sand as filter media for rapid filtration1606-97491607-079810.2166/ws.2020.311https://doaj.org/article/afeaad3fff6c44609992c3c28632b1812021-02-01T00:00:00Zhttp://ws.iwaponline.com/content/21/1/401https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The objective of this work was to evaluate the crushed rock sand (CRS) as a filter bed in rapid filtration for water treatment. The experiments were carried out using pilot-scale filtration units: one with a CRS filter bed and the other with natural river sand (NRS). Both filter media were prepared in accordance with typical standards for rapid sand filtration (particle size range and distribution, and filter bed depth), and were further characterized in terms of chemical composition, particles and bulk density, porosity, acid solubility and sphericity coefficient. Over four months, 14 filter runs using filtration rates of 90, 180, 270 and 360 m3 m−2 d−1 were monitored and characterized in terms of run length, head loss increase along filter bed depth, turbidity removal along filter bed depth. Overall, the performance of the CRS filter was similar to or even better than that of the NRS filter, producing filtered water with turbidity lower than 0.50 NTU along the entire run, with head loss increasing rates and run length similar to those of the NRS filter. It is concluded that CRS presents a high potential for use as filter media for rapid filtration in water treatment, without technical or operational disadvantages.Bruno Moreno Ramos da SilvaRafael Kopschitz Xavier BastosPedro Kopschitz Xavier BastosIWA Publishingarticledrinking water treatmentfilter bed mediahead lossrapid filtrationturbidityWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 1, Pp 401-411 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	drinking water treatment filter bed media head loss rapid filtration turbidity Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	drinking water treatment filter bed media head loss rapid filtration turbidity Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Bruno Moreno Ramos da Silva Rafael Kopschitz Xavier Bastos Pedro Kopschitz Xavier Bastos Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
description	The objective of this work was to evaluate the crushed rock sand (CRS) as a filter bed in rapid filtration for water treatment. The experiments were carried out using pilot-scale filtration units: one with a CRS filter bed and the other with natural river sand (NRS). Both filter media were prepared in accordance with typical standards for rapid sand filtration (particle size range and distribution, and filter bed depth), and were further characterized in terms of chemical composition, particles and bulk density, porosity, acid solubility and sphericity coefficient. Over four months, 14 filter runs using filtration rates of 90, 180, 270 and 360 m3 m−2 d−1 were monitored and characterized in terms of run length, head loss increase along filter bed depth, turbidity removal along filter bed depth. Overall, the performance of the CRS filter was similar to or even better than that of the NRS filter, producing filtered water with turbidity lower than 0.50 NTU along the entire run, with head loss increasing rates and run length similar to those of the NRS filter. It is concluded that CRS presents a high potential for use as filter media for rapid filtration in water treatment, without technical or operational disadvantages.
format	article
author	Bruno Moreno Ramos da Silva Rafael Kopschitz Xavier Bastos Pedro Kopschitz Xavier Bastos
author_facet	Bruno Moreno Ramos da Silva Rafael Kopschitz Xavier Bastos Pedro Kopschitz Xavier Bastos
author_sort	Bruno Moreno Ramos da Silva
title	Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
title_short	Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
title_full	Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
title_fullStr	Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
title_full_unstemmed	Comparison of crushed rock sand and natural river sand as filter media for rapid filtration
title_sort	comparison of crushed rock sand and natural river sand as filter media for rapid filtration
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/afeaad3fff6c44609992c3c28632b181
work_keys_str_mv	AT brunomorenoramosdasilva comparisonofcrushedrocksandandnaturalriversandasfiltermediaforrapidfiltration AT rafaelkopschitzxavierbastos comparisonofcrushedrocksandandnaturalriversandasfiltermediaforrapidfiltration AT pedrokopschitzxavierbastos comparisonofcrushedrocksandandnaturalriversandasfiltermediaforrapidfiltration
_version_	1718443874691579904

Comparison of crushed rock sand and natural river sand as filter media for rapid filtration

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