Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply

Coagulation and microfiltration using polyaluminium chloride (PACl) were investigated as a pretreatment process by nanofiltration to reduce dissolved organic matter in both raw water and treated water at water treatment plants. The dissolved organic matter in the raw water supply may be a precursor...

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Main Authors: Sirikul Siriraksophon, Charongpun Musikavong, Chaisri Suksaroj, Thunwadee Tachapattaworakul Suksaroj
Format: Article
Language:English
Published: Thai Society of Higher Eduction Institutes on Environment 2016-07-01
Series:EnvironmentAsia
Subjects:
Online Access:http://tshe.org/ea/pdf/vol9no2-02.pdf
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author Sirikul Siriraksophon
Charongpun Musikavong
Chaisri Suksaroj
Thunwadee Tachapattaworakul Suksaroj
author_facet Sirikul Siriraksophon
Charongpun Musikavong
Chaisri Suksaroj
Thunwadee Tachapattaworakul Suksaroj
author_sort Sirikul Siriraksophon
collection DOAJ
description Coagulation and microfiltration using polyaluminium chloride (PACl) were investigated as a pretreatment process by nanofiltration to reduce dissolved organic matter in both raw water and treated water at water treatment plants. The dissolved organic matter in the raw water supply may be a precursor of carcinogens produced during the disinfection process. Raw water from pumping stations and treated water from Hat Yai Provincial Waterworks Authority, Songkhla Province, Thailand were used as samples for this study. Fractionation of raw water samples by DAX-8 and XAD-4 resin revealed that they contained hydrophilic, transphilic and hydrophobic groups with hydrophilic the major organic component. PACl coagulation resulted in a higher dissolved organic matter removal than microfiltration techniques. A hybrid coagulation-nanofiltration process was studied. This effectively reduced dissolved organic matter as dissolved organic carbon and UV-254 by 86% and 94% respectively. The hybrid coagulation-nanofiltration process reduced dissolved organic carbons of the hydrophobic group more effectively than the hydrophilic group. Chloroform and bromodichloroform were the two major species of the trihalomethane group produced when raw water reacted with chlorine. The hybrid coagulation-nanofiltration process reduced the trihalomethane formation potential (THMFP) in raw water samples by up to 90%
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spelling doaj.art-42078b069b054c2d9a16e6b36094c36a2022-12-21T23:30:09ZengThai Society of Higher Eduction Institutes on EnvironmentEnvironmentAsia1906-17142016-07-0192101710.14456/ea.2016.3Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water SupplySirikul Siriraksophon0Charongpun Musikavong1Chaisri Suksaroj 2Thunwadee Tachapattaworakul Suksaroj3Faculty of Engineering, Prince of Songkla University, Songkhla, Thailand.Faculty of Engineering, Prince of Songkla University, Songkhla, Thailand.Faculty of Engineering, Prince of Songkla University, Songkhla, Thailand.ASEAN Institute for Health Development, Mahidol University, Salaya, Putthamonthon, Nakhonphathom, Thailand Coagulation and microfiltration using polyaluminium chloride (PACl) were investigated as a pretreatment process by nanofiltration to reduce dissolved organic matter in both raw water and treated water at water treatment plants. The dissolved organic matter in the raw water supply may be a precursor of carcinogens produced during the disinfection process. Raw water from pumping stations and treated water from Hat Yai Provincial Waterworks Authority, Songkhla Province, Thailand were used as samples for this study. Fractionation of raw water samples by DAX-8 and XAD-4 resin revealed that they contained hydrophilic, transphilic and hydrophobic groups with hydrophilic the major organic component. PACl coagulation resulted in a higher dissolved organic matter removal than microfiltration techniques. A hybrid coagulation-nanofiltration process was studied. This effectively reduced dissolved organic matter as dissolved organic carbon and UV-254 by 86% and 94% respectively. The hybrid coagulation-nanofiltration process reduced dissolved organic carbons of the hydrophobic group more effectively than the hydrophilic group. Chloroform and bromodichloroform were the two major species of the trihalomethane group produced when raw water reacted with chlorine. The hybrid coagulation-nanofiltration process reduced the trihalomethane formation potential (THMFP) in raw water samples by up to 90%http://tshe.org/ea/pdf/vol9no2-02.pdfwater supplycoagulationdissolved organic mattermicrofiltrationnanofiltation
spellingShingle Sirikul Siriraksophon
Charongpun Musikavong
Chaisri Suksaroj
Thunwadee Tachapattaworakul Suksaroj
Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
EnvironmentAsia
water supply
coagulation
dissolved organic matter
microfiltration
nanofiltation
title Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
title_full Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
title_fullStr Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
title_full_unstemmed Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
title_short Evolution of Pretreatment Methods for Nanofiltration Membrane Used for Dissolved Organic Matter Removal in Raw Water Supply
title_sort evolution of pretreatment methods for nanofiltration membrane used for dissolved organic matter removal in raw water supply
topic water supply
coagulation
dissolved organic matter
microfiltration
nanofiltation
url http://tshe.org/ea/pdf/vol9no2-02.pdf
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AT charongpunmusikavong evolutionofpretreatmentmethodsfornanofiltrationmembraneusedfordissolvedorganicmatterremovalinrawwatersupply
AT chaisrisuksaroj evolutionofpretreatmentmethodsfornanofiltrationmembraneusedfordissolvedorganicmatterremovalinrawwatersupply
AT thunwadeetachapattaworakulsuksaroj evolutionofpretreatmentmethodsfornanofiltrationmembraneusedfordissolvedorganicmatterremovalinrawwatersupply