Cover Image

Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests

In this study of coagulation operation, a comparison was made between the optimum jar test values for pH, coagulant and coagulant aid obtained from traditional methods (an adjusted one-factor-at-atime (OFAT) method) and with central composite design (the standard design of response surface methodolo...

Full description

Saved in:
Bibliographic Details
Main Author: Zainal Abideen, Muzaffar
Format: Article
Published: IWA Publishing 2012
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/47333/
http://dx.doi.org/10.2166/wst.2012.561
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.47333
record_format eprints
spelling my.utm.473332019-03-05T01:51:40Z http://eprints.utm.my/id/eprint/47333/ Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests Zainal Abideen, Muzaffar TA Engineering (General). Civil engineering (General) In this study of coagulation operation, a comparison was made between the optimum jar test values for pH, coagulant and coagulant aid obtained from traditional methods (an adjusted one-factor-at-atime (OFAT) method) and with central composite design (the standard design of response surface methodology (RSM)). Alum (coagulant) and polymer (coagulant aid) were used to treat a water source with very low pH and high aluminium concentration at Sri-Gading water treatment plant (WTP) Malaysia. The optimum conditions for these factors were chosen when the final turbidity, pH after coagulation and residual aluminium were within 0-5 NTU, 6.5-7.5 and 0-0.20 mg/l respectively. Traditional and RSM jar tests were conducted to find their respective optimum coagulation conditions. It was observed that the optimum dose for alum obtained through the traditional method was 12 mg/l, while the value for polymer was set constant at 0.020 mg/l. Through RSM optimization, the optimum dose for alum was 7 mg/l and for polymer was 0.004 mg/l. Optimum pH for the coagulation operation obtained through traditional methods and RSM was 7.6. The final turbidity, pH after coagulation and residual aluminium recorded were all within acceptable limits. The RSM method was demonstrated to be an appropriate approach for the optimization and was validated by a further test. IWA Publishing 2012 Article PeerReviewed Zainal Abideen, Muzaffar (2012) Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests. Water Science And Technology, 65 (3). pp. 496-503. ISSN 0273-1223 http://dx.doi.org/10.2166/wst.2012.561 DOI:10.2166/wst.2012.561
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Zainal Abideen, Muzaffar
Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
description In this study of coagulation operation, a comparison was made between the optimum jar test values for pH, coagulant and coagulant aid obtained from traditional methods (an adjusted one-factor-at-atime (OFAT) method) and with central composite design (the standard design of response surface methodology (RSM)). Alum (coagulant) and polymer (coagulant aid) were used to treat a water source with very low pH and high aluminium concentration at Sri-Gading water treatment plant (WTP) Malaysia. The optimum conditions for these factors were chosen when the final turbidity, pH after coagulation and residual aluminium were within 0-5 NTU, 6.5-7.5 and 0-0.20 mg/l respectively. Traditional and RSM jar tests were conducted to find their respective optimum coagulation conditions. It was observed that the optimum dose for alum obtained through the traditional method was 12 mg/l, while the value for polymer was set constant at 0.020 mg/l. Through RSM optimization, the optimum dose for alum was 7 mg/l and for polymer was 0.004 mg/l. Optimum pH for the coagulation operation obtained through traditional methods and RSM was 7.6. The final turbidity, pH after coagulation and residual aluminium recorded were all within acceptable limits. The RSM method was demonstrated to be an appropriate approach for the optimization and was validated by a further test.
format Article
author Zainal Abideen, Muzaffar
author_facet Zainal Abideen, Muzaffar
author_sort Zainal Abideen, Muzaffar
title Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
title_short Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
title_full Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
title_fullStr Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
title_full_unstemmed Optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
title_sort optimizing the coagulation process in a drinking water treatment plant - comparison between traditional and statistical experimental design jar tests
publisher IWA Publishing
publishDate 2012
url http://eprints.utm.my/id/eprint/47333/
http://dx.doi.org/10.2166/wst.2012.561
_version_ 1643652290880471040
score 13.211869

Similar Items