Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions

The performance of microfiltration with cyclic backwashing of secondary effluent emanating from a sewage treatment plant was assessed for the purpose of recycling of water. Microfiltration experiments were conducted under constant rate and constant pressure conditions, and filtration behavior in the...

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Main Authors:	Jami, Mohammed Saedi, Ohn, Than, Iritani, Eiji
Format:	Article
Language:	English
Published:	The Society of Chemical Engineers Japan 2004
Subjects:	TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/42355/ http://irep.iium.edu.my/42355/ http://irep.iium.edu.my/42355/1/Published_2.pdf

id	iium-42355
recordtype	eprints
spelling	iium-423552015-03-24T03:55:41Z http://irep.iium.edu.my/42355/ Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions Jami, Mohammed Saedi Ohn, Than Iritani, Eiji TP155 Chemical engineering The performance of microfiltration with cyclic backwashing of secondary effluent emanating from a sewage treatment plant was assessed for the purpose of recycling of water. Microfiltration experiments were conducted under constant rate and constant pressure conditions, and filtration behavior in the two operations was compared. The filtrate obtained was found to be free from E. coli, and hence it can be reused as reclaimed water for urban reuse. As filtration proceeded, cake formation and pore blocking of the membrane occurred, causing an increase in pressure in constant rate filtration or flux decline in constant pressure filtration. Although backwashing was effective in decreasing cake resistance, the irreversible pore blocking of the membrane became gradually more severe with the increase in the number of backwashings. Characteristics of cake formation were analyzed using the compressible cake filtration model, and the pore blocking was found to be well described by a two-phase intermediate blocking law. As a result, the filtration behavior in constant pressure filtration with cyclic backwashing was expressed well by using models that represent cake formation and pore blocking, on the basis of the experimental data of constant rate filtration with cyclic backwashing. Moreover, it was shown from the experimental and predicted results that constant pressure filtration with cyclic backwashing assures almost constant throughput rate. The Society of Chemical Engineers Japan 2004-09 Article PeerReviewed application/pdf en http://irep.iium.edu.my/42355/1/Published_2.pdf Jami, Mohammed Saedi and Ohn, Than and Iritani, Eiji (2004) Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions. Kagaku Kogaku Ronbunshu, 30 (5). pp. 561-567. ISSN 0386-216X https://www.jstage.jst.go.jp/browse/kakoronbunshu
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP155 Chemical engineering
spellingShingle	TP155 Chemical engineering Jami, Mohammed Saedi Ohn, Than Iritani, Eiji Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
description	The performance of microfiltration with cyclic backwashing of secondary effluent emanating from a sewage treatment plant was assessed for the purpose of recycling of water. Microfiltration experiments were conducted under constant rate and constant pressure conditions, and filtration behavior in the two operations was compared. The filtrate obtained was found to be free from E. coli, and hence it can be reused as reclaimed water for urban reuse. As filtration proceeded, cake formation and pore blocking of the membrane occurred, causing an increase in pressure in constant rate filtration or flux decline in constant pressure filtration. Although backwashing was effective in decreasing cake resistance, the irreversible pore blocking of the membrane became gradually more severe with the increase in the number of backwashings. Characteristics of cake formation were analyzed using the compressible cake filtration model, and the pore blocking was found to be well described by a two-phase intermediate blocking law. As a result, the filtration behavior in constant pressure filtration with cyclic backwashing was expressed well by using models that represent cake formation and pore blocking, on the basis of the experimental data of constant rate filtration with cyclic backwashing. Moreover, it was shown from the experimental and predicted results that constant pressure filtration with cyclic backwashing assures almost constant throughput rate.
format	Article
author	Jami, Mohammed Saedi Ohn, Than Iritani, Eiji
author_facet	Jami, Mohammed Saedi Ohn, Than Iritani, Eiji
author_sort	Jami, Mohammed Saedi
title	Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
title_short	Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
title_full	Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
title_fullStr	Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
title_full_unstemmed	Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
title_sort	filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions
publisher	The Society of Chemical Engineers Japan
publishDate	2004
url	http://irep.iium.edu.my/42355/ http://irep.iium.edu.my/42355/ http://irep.iium.edu.my/42355/1/Published_2.pdf
first_indexed	2023-09-18T21:00:23Z
last_indexed	2023-09-18T21:00:23Z
_version_	1777410583690215424

Filtration behaviors in microfiltration with cyclic backwashing of sewage secondary effluent under constant rate and constant pressure conditions

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