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Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater

The effect of low frequency (20 kHz) ultrasonic irradiation on the removal of sodium Linear Alkylbenzene Sulphonates (LAS) from aqueous solutions has been investigated. Sonication of three different initial concentrations of LAS, 500 μgmol/l, 750 μgmol/l and 1000 μgmol/l, were performed. All expe...

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Main Authors: Abu Hassan , Mohd. Ariffin, Mantzavinos, Dionissios, Metcalfe, Ian S.
Format: Article
Language:English
English
Published: Penerbit UTM Press 2007
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf
http://eprints.utm.my/id/eprint/8107/2/33
http://eprints.utm.my/id/eprint/8107/
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spelling my.utm.81072017-11-01T04:17:26Z http://eprints.utm.my/id/eprint/8107/ Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater Abu Hassan , Mohd. Ariffin Mantzavinos, Dionissios Metcalfe, Ian S. TP Chemical technology The effect of low frequency (20 kHz) ultrasonic irradiation on the removal of sodium Linear Alkylbenzene Sulphonates (LAS) from aqueous solutions has been investigated. Sonication of three different initial concentrations of LAS, 500 μgmol/l, 750 μgmol/l and 1000 μgmol/l, were performed. All experiments used a temperature of 30°C, frequency of 20 kHz, power of 125 W, a batch time of 120 min and the pH was left uncontrolled. It was found that the main degradation of LAS at micromolar concentrations proceeded via a reaction with OH· radicals. The initial degradation rate increased with an increase in the surfactant concentration over the whole concentration range studied. The sonolysis of LAS showed a strong inhibition of H2O2 production at a higher concentration. Sonication of LAS in the presence of Br¯ suggested that OH· radicals induced degradation pathway was the dominating sonochemical degradation mechanism. Penerbit UTM Press 2007-06 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf text/html en http://eprints.utm.my/id/eprint/8107/2/33 Abu Hassan , Mohd. Ariffin and Mantzavinos, Dionissios and Metcalfe, Ian S. (2007) Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater. Jurnal Teknologi , 46 (F). pp. 27-40. ISSN 0217-9696 (Print); 2180-3722 (Electronics) DOI:10.11113/jt.v46.302
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/
language English
English
topic TP Chemical technology
spellingShingle TP Chemical technology
Abu Hassan , Mohd. Ariffin
Mantzavinos, Dionissios
Metcalfe, Ian S.
Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
description The effect of low frequency (20 kHz) ultrasonic irradiation on the removal of sodium Linear Alkylbenzene Sulphonates (LAS) from aqueous solutions has been investigated. Sonication of three different initial concentrations of LAS, 500 μgmol/l, 750 μgmol/l and 1000 μgmol/l, were performed. All experiments used a temperature of 30°C, frequency of 20 kHz, power of 125 W, a batch time of 120 min and the pH was left uncontrolled. It was found that the main degradation of LAS at micromolar concentrations proceeded via a reaction with OH· radicals. The initial degradation rate increased with an increase in the surfactant concentration over the whole concentration range studied. The sonolysis of LAS showed a strong inhibition of H2O2 production at a higher concentration. Sonication of LAS in the presence of Br¯ suggested that OH· radicals induced degradation pathway was the dominating sonochemical degradation mechanism.
format Article
author Abu Hassan , Mohd. Ariffin
Mantzavinos, Dionissios
Metcalfe, Ian S.
author_facet Abu Hassan , Mohd. Ariffin
Mantzavinos, Dionissios
Metcalfe, Ian S.
author_sort Abu Hassan , Mohd. Ariffin
title Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
title_short Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
title_full Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
title_fullStr Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
title_full_unstemmed Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
title_sort ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (las) from wastewater
publisher Penerbit UTM Press
publishDate 2007
url http://eprints.utm.my/id/eprint/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf
http://eprints.utm.my/id/eprint/8107/2/33
http://eprints.utm.my/id/eprint/8107/
_version_ 1643644920398872576
score 13.211869

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