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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| Format: | Article |
| Language: | English English |
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Penerbit UTM Press
2007
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| Online Access: | http://eprints.utm.my/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf http://eprints.utm.my/8107/2/33 |
| _version_ | 1825910149037948928 |
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| 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 |
| collection | ePrints |
| 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.
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| first_indexed | 2024-03-05T18:12:43Z |
| format | Article |
| id | utm.eprints-8107 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English English |
| last_indexed | 2024-03-05T18:12:43Z |
| publishDate | 2007 |
| publisher | Penerbit UTM Press |
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| spelling | utm.eprints-81072017-11-01T04:17:26Z http://eprints.utm.my/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/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf text/html en http://eprints.utm.my/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 |
| 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 |
| title | Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
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| title_full | Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
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| 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
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| title_short | Ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates (LAS) from wastewater
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| title_sort | ultrasonic irradiaton of the removal of linear alkylbenzena sulphonates las from wastewater |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/8107/1/MohdAriffinAbu2007_UltrasonicIrradiationoftheRemovalofLinear.pdf http://eprints.utm.my/8107/2/33 |
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