Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent

The constant rate microfiltration characteristics of sewage secondary effluent pretreated with polyaluminum chloride (PACl) have been investigated. In order to reduce membrane fouling, the periodic operation of constant rate microfiltration and backwashing cycles was conducted using the fully automa...

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Main Authors:	Ohn, Than, Jami, Mohammed Saedi, Iritani, Eiji, Mukai, Yasuhito, Katagiri, Nobuyuki
Format:	Article
Language:	English
Published:	Taylor & Francis Group, LLC 2003
Subjects:	TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/1/Published.pdf

id	iium-42351
recordtype	eprints
spelling	iium-423512015-03-24T03:59:15Z http://irep.iium.edu.my/42351/ Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent Ohn, Than Jami, Mohammed Saedi Iritani, Eiji Mukai, Yasuhito Katagiri, Nobuyuki TP155 Chemical engineering The constant rate microfiltration characteristics of sewage secondary effluent pretreated with polyaluminum chloride (PACl) have been investigated. In order to reduce membrane fouling, the periodic operation of constant rate microfiltration and backwashing cycles was conducted using the fully automated experimental apparatus with the monolithic ceramic membrane module. As filtration proceeded, cake formation occurred on the membrane surface causing an increase in pressure drop. Backwashing could reduce the flow resistance resulted from the formation of the filter cake. However, the initial pressure drop seemed to increase after each backwashing due to the irreversible pore blocking of the membrane. Based on the intermediate blocking law, a mathematical model has been developed to describe the pore blocking behavior. Using the model in combination with the filtration rate equation for the compressible cake the energy consumption has been evaluated for the whole process. The experimental results were in good agreement with those calculated from the theoretical model. Optimum operational conditions for an energy efficient process were suggested based on analytical results. The reclaimed water is found to be free from microorganisms and can be reused in applications such as toilet flushing, car washing. Taylor & Francis Group, LLC 2003 Article PeerReviewed application/pdf en http://irep.iium.edu.my/42351/1/Published.pdf Ohn, Than and Jami, Mohammed Saedi and Iritani, Eiji and Mukai, Yasuhito and Katagiri, Nobuyuki (2003) Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent. Separation Science and Technology, 38 (4). 947-962 . ISSN 1520-5754 (O), 0149-6395 (P) http://www.tandfonline.com/action/aboutThisJournal?journalCode=lsst20#.VP__FPmUdHN 10.1081/SS-120017636
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 Ohn, Than Jami, Mohammed Saedi Iritani, Eiji Mukai, Yasuhito Katagiri, Nobuyuki Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
description	The constant rate microfiltration characteristics of sewage secondary effluent pretreated with polyaluminum chloride (PACl) have been investigated. In order to reduce membrane fouling, the periodic operation of constant rate microfiltration and backwashing cycles was conducted using the fully automated experimental apparatus with the monolithic ceramic membrane module. As filtration proceeded, cake formation occurred on the membrane surface causing an increase in pressure drop. Backwashing could reduce the flow resistance resulted from the formation of the filter cake. However, the initial pressure drop seemed to increase after each backwashing due to the irreversible pore blocking of the membrane. Based on the intermediate blocking law, a mathematical model has been developed to describe the pore blocking behavior. Using the model in combination with the filtration rate equation for the compressible cake the energy consumption has been evaluated for the whole process. The experimental results were in good agreement with those calculated from the theoretical model. Optimum operational conditions for an energy efficient process were suggested based on analytical results. The reclaimed water is found to be free from microorganisms and can be reused in applications such as toilet flushing, car washing.
format	Article
author	Ohn, Than Jami, Mohammed Saedi Iritani, Eiji Mukai, Yasuhito Katagiri, Nobuyuki
author_facet	Ohn, Than Jami, Mohammed Saedi Iritani, Eiji Mukai, Yasuhito Katagiri, Nobuyuki
author_sort	Ohn, Than
title	Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
title_short	Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
title_full	Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
title_fullStr	Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
title_full_unstemmed	Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
title_sort	filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent
publisher	Taylor & Francis Group, LLC
publishDate	2003
url	http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/ http://irep.iium.edu.my/42351/1/Published.pdf
first_indexed	2023-09-18T21:00:22Z
last_indexed	2023-09-18T21:00:22Z
_version_	1777410583202627584

Filtration behaviors in constant rate microfiltration with cyclic backwashing of coagulated sewage secondary effluent

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