A preliminary study on internal filtration mechanism by using nonwoven filter medium

When a nonwoven filter medium is used as a prefilter or as a cyclic filter for liquid filtration, filter life is sometimes given priority over particle rejection performance. Such filter medium has been selected so far by trial and error, since the filter life depends on many factors such as filter...

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Main Authors:	Kadooka, Hiroto, Manabe, Masaki, Tanaka, Takanori, Jami, Mohammed Saedi, Iwata, Masashi
Format:	Conference or Workshop Item
Language:	English English
Published:	2016
Subjects:	TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/51212/ http://irep.iium.edu.my/51212/ http://irep.iium.edu.my/51212/1/PL-06.pdf http://irep.iium.edu.my/51212/2/WFC12_Proceedings.pdf

id	iium-51212
recordtype	eprints
spelling	iium-512122016-07-12T07:18:13Z http://irep.iium.edu.my/51212/ A preliminary study on internal filtration mechanism by using nonwoven filter medium Kadooka, Hiroto Manabe, Masaki Tanaka, Takanori Jami, Mohammed Saedi Iwata, Masashi TP155 Chemical engineering When a nonwoven filter medium is used as a prefilter or as a cyclic filter for liquid filtration, filter life is sometimes given priority over particle rejection performance. Such filter medium has been selected so far by trial and error, since the filter life depends on many factors such as filter medium structure, characteristics of particles to be removed, and operational conditions of the filtration process. In order to elucidate the effects of these factors on the filter life, fundamental study using filter paper as a model nonwoven filter medium and monodispersed spherical PMMA particles as a model suspended material has been conducted under constant rate filtration conditions. The changes in pressure drop p across the filter unit and turbidity of the filtrate with respect to filtrate volume v have been observed. The clarity of the filtrate decreased at the initial stage of filtration, then increased in every subsequent experimental run; dp/dv as a measure of the increment of filtration resistance also decreased at the initial stage of filtration, then increased approaching a plateau value. These results imply the existence of a filtration mechanism, where filtration efficiency decreases with time, earlier than what could be predicted by conventional blocking filtration and cake filtration models. Overall filtration resistance mainly depends on the cumulative mass of captured particles, and is slightly affected by both feed solid concentration and filtration rate. 2016-04-16 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/51212/1/PL-06.pdf application/pdf en http://irep.iium.edu.my/51212/2/WFC12_Proceedings.pdf Kadooka, Hiroto and Manabe, Masaki and Tanaka, Takanori and Jami, Mohammed Saedi and Iwata, Masashi (2016) A preliminary study on internal filtration mechanism by using nonwoven filter medium. In: 12th World Filtration Congress (WFC'12), 11th-15th April 2016, Taipei, Taiwan. (Unpublished) http://www.wfc12.tw/programme.html
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TP155 Chemical engineering
spellingShingle	TP155 Chemical engineering Kadooka, Hiroto Manabe, Masaki Tanaka, Takanori Jami, Mohammed Saedi Iwata, Masashi A preliminary study on internal filtration mechanism by using nonwoven filter medium
description	When a nonwoven filter medium is used as a prefilter or as a cyclic filter for liquid filtration, filter life is sometimes given priority over particle rejection performance. Such filter medium has been selected so far by trial and error, since the filter life depends on many factors such as filter medium structure, characteristics of particles to be removed, and operational conditions of the filtration process. In order to elucidate the effects of these factors on the filter life, fundamental study using filter paper as a model nonwoven filter medium and monodispersed spherical PMMA particles as a model suspended material has been conducted under constant rate filtration conditions. The changes in pressure drop p across the filter unit and turbidity of the filtrate with respect to filtrate volume v have been observed. The clarity of the filtrate decreased at the initial stage of filtration, then increased in every subsequent experimental run; dp/dv as a measure of the increment of filtration resistance also decreased at the initial stage of filtration, then increased approaching a plateau value. These results imply the existence of a filtration mechanism, where filtration efficiency decreases with time, earlier than what could be predicted by conventional blocking filtration and cake filtration models. Overall filtration resistance mainly depends on the cumulative mass of captured particles, and is slightly affected by both feed solid concentration and filtration rate.
format	Conference or Workshop Item
author	Kadooka, Hiroto Manabe, Masaki Tanaka, Takanori Jami, Mohammed Saedi Iwata, Masashi
author_facet	Kadooka, Hiroto Manabe, Masaki Tanaka, Takanori Jami, Mohammed Saedi Iwata, Masashi
author_sort	Kadooka, Hiroto
title	A preliminary study on internal filtration mechanism by using nonwoven filter medium
title_short	A preliminary study on internal filtration mechanism by using nonwoven filter medium
title_full	A preliminary study on internal filtration mechanism by using nonwoven filter medium
title_fullStr	A preliminary study on internal filtration mechanism by using nonwoven filter medium
title_full_unstemmed	A preliminary study on internal filtration mechanism by using nonwoven filter medium
title_sort	preliminary study on internal filtration mechanism by using nonwoven filter medium
publishDate	2016
url	http://irep.iium.edu.my/51212/ http://irep.iium.edu.my/51212/ http://irep.iium.edu.my/51212/1/PL-06.pdf http://irep.iium.edu.my/51212/2/WFC12_Proceedings.pdf
first_indexed	2023-09-18T21:12:29Z
last_indexed	2023-09-18T21:12:29Z
_version_	1777411345454465024

A preliminary study on internal filtration mechanism by using nonwoven filter medium

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