Pretreatment of seawater: Results of pilot trials in Singapore

In this paper, performance of different pretreatment systems used in the seawater reverse osmosis desalination process is presented. The different pretreatment techniques analyzed included conventional media-filtration technique and non-conventional membrane filtration techniques. For the membrane f...

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Main Authors:	Chua, K T, Hawlader, Mohammad Nurul Alam, Malek, A
Format:	Article
Language:	English
Published:	ELSEVIER 2003
Subjects:	TJ163.26 Energy conservation
Online Access:	http://irep.iium.edu.my/22831/ http://irep.iium.edu.my/22831/4/hawlader1-s2.0-S0011916403900750-main.pdf

id	iium-22831
recordtype	eprints
spelling	iium-228312013-06-25T05:09:38Z http://irep.iium.edu.my/22831/ Pretreatment of seawater: Results of pilot trials in Singapore Chua, K T Hawlader, Mohammad Nurul Alam Malek, A TJ163.26 Energy conservation In this paper, performance of different pretreatment systems used in the seawater reverse osmosis desalination process is presented. The different pretreatment techniques analyzed included conventional media-filtration technique and non-conventional membrane filtration techniques. For the membrane filtration techniques, two ultrafiltration and one microfiltration pilot plants were used in the experimental study. During the experiments, the silt density index (SDI) of the filtrate samples was regularly measured to quantify the performance of pretreatment systems in rejecting colloidal particles. Measurements of other important parameters included filtrate flux, transmembrane pressure, total suspended solids, colloidal silica, total organic carbon, etc. According to the experimental findings, the quality of the filtrate produced by the conventional media-filtration technique was inferior and highly inconsistent. SDI of filtrate varied from 2.8 to 3.8 and spikes as high as 6.3 were frequently observed. Membrane pretreatment produced filtrate of a better quality. SDI of the filtrate produced was consistently below 3.0, a prerequisite for proper operation of a RO desalination plant. The ease of operation of the membrane pretreatment processes was also noted. Together with improved maintenance procedures such as filtrate backwashing and air scouring, complete flux and pressure recoveries were achievable with minimal use of chemicals during the experiments. ELSEVIER 2003-11 Article PeerReviewed application/pdf en http://irep.iium.edu.my/22831/4/hawlader1-s2.0-S0011916403900750-main.pdf Chua, K T and Hawlader, Mohammad Nurul Alam and Malek, A (2003) Pretreatment of seawater: Results of pilot trials in Singapore. Desalination, 159 (3). pp. 225-243. ISSN 0011-9164
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ163.26 Energy conservation
spellingShingle	TJ163.26 Energy conservation Chua, K T Hawlader, Mohammad Nurul Alam Malek, A Pretreatment of seawater: Results of pilot trials in Singapore
description	In this paper, performance of different pretreatment systems used in the seawater reverse osmosis desalination process is presented. The different pretreatment techniques analyzed included conventional media-filtration technique and non-conventional membrane filtration techniques. For the membrane filtration techniques, two ultrafiltration and one microfiltration pilot plants were used in the experimental study. During the experiments, the silt density index (SDI) of the filtrate samples was regularly measured to quantify the performance of pretreatment systems in rejecting colloidal particles. Measurements of other important parameters included filtrate flux, transmembrane pressure, total suspended solids, colloidal silica, total organic carbon, etc. According to the experimental findings, the quality of the filtrate produced by the conventional media-filtration technique was inferior and highly inconsistent. SDI of filtrate varied from 2.8 to 3.8 and spikes as high as 6.3 were frequently observed. Membrane pretreatment produced filtrate of a better quality. SDI of the filtrate produced was consistently below 3.0, a prerequisite for proper operation of a RO desalination plant. The ease of operation of the membrane pretreatment processes was also noted. Together with improved maintenance procedures such as filtrate backwashing and air scouring, complete flux and pressure recoveries were achievable with minimal use of chemicals during the experiments.
format	Article
author	Chua, K T Hawlader, Mohammad Nurul Alam Malek, A
author_facet	Chua, K T Hawlader, Mohammad Nurul Alam Malek, A
author_sort	Chua, K T
title	Pretreatment of seawater: Results of pilot trials in Singapore
title_short	Pretreatment of seawater: Results of pilot trials in Singapore
title_full	Pretreatment of seawater: Results of pilot trials in Singapore
title_fullStr	Pretreatment of seawater: Results of pilot trials in Singapore
title_full_unstemmed	Pretreatment of seawater: Results of pilot trials in Singapore
title_sort	pretreatment of seawater: results of pilot trials in singapore
publisher	ELSEVIER
publishDate	2003
url	http://irep.iium.edu.my/22831/ http://irep.iium.edu.my/22831/4/hawlader1-s2.0-S0011916403900750-main.pdf
first_indexed	2023-09-18T20:34:41Z
last_indexed	2023-09-18T20:34:41Z
_version_	1777408966967427072

Pretreatment of seawater: Results of pilot trials in Singapore

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