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Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater

The present study is based on a hybrid advanced oxidation process (AOP) of sonophotolysis system, of which sonication (35 kHz) and photolysis UV-C (254nm) were applied simultaneously to effectively degrade a selected recalcitrant dye-based pollutant, Reactive Black 5 (RB5). The influence of the solu...

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Main Authors: Collin Glen Joseph Anthony Joseph, Yap, Taufiq Yun Hin, Vigneswar Krishnan
Format: Article
Language:English
English
Published: Gadjah Mada University 2017
Subjects:
TD Environmental technology. Sanitary engineering
Online Access:https://eprints.ums.edu.my/id/eprint/30084/1/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/30084/2/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/30084/
https://journal.ugm.ac.id/AJChE/article/view/49554
https://doi.org/10.22146/ajche.49554
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spelling my.ums.eprints.300842022-01-10T23:48:10Z https://eprints.ums.edu.my/id/eprint/30084/ Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater Collin Glen Joseph Anthony Joseph Yap, Taufiq Yun Hin Vigneswar Krishnan TD Environmental technology. Sanitary engineering The present study is based on a hybrid advanced oxidation process (AOP) of sonophotolysis system, of which sonication (35 kHz) and photolysis UV-C (254nm) were applied simultaneously to effectively degrade a selected recalcitrant dye-based pollutant, Reactive Black 5 (RB5). The influence of the solution pH and concentration were manipulated throughout this study to investigate the sonophotodegradation kinetics and synergistic effects on the RB5 degradation. Increasing the solution concentration resulted in lowered degradation rate due to the inner filter effect by the dye molecules and reduced the generation of hydroxyl radicals. The results confirmed that the sonophotolysis rate was better at basic medium (67.7%) in comparison to acidic medium (46.9%) due to the ionization of RB5. Synergistic effects were analyzed based on the first order kinetic rate model. It was found that the synergistic effect was observed for all the experiments conducted which resulted from an increase in the (•OH) radicals due to the photolysis of H2O2 formed by the sonolysis process. This hybrid system, sonophotolysis system, was able to degrade RB5 into intermediates with a total reaction time of 1h. Gadjah Mada University 2017 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/30084/1/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/30084/2/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20FULL%20TEXT.pdf Collin Glen Joseph Anthony Joseph and Yap, Taufiq Yun Hin and Vigneswar Krishnan (2017) Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater. ASEAN Journal of Chemical Engineering, 17. pp. 37-50. ISSN 1655-4418 https://journal.ugm.ac.id/AJChE/article/view/49554 https://doi.org/10.22146/ajche.49554
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Collin Glen Joseph Anthony Joseph
Yap, Taufiq Yun Hin
Vigneswar Krishnan
Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
description The present study is based on a hybrid advanced oxidation process (AOP) of sonophotolysis system, of which sonication (35 kHz) and photolysis UV-C (254nm) were applied simultaneously to effectively degrade a selected recalcitrant dye-based pollutant, Reactive Black 5 (RB5). The influence of the solution pH and concentration were manipulated throughout this study to investigate the sonophotodegradation kinetics and synergistic effects on the RB5 degradation. Increasing the solution concentration resulted in lowered degradation rate due to the inner filter effect by the dye molecules and reduced the generation of hydroxyl radicals. The results confirmed that the sonophotolysis rate was better at basic medium (67.7%) in comparison to acidic medium (46.9%) due to the ionization of RB5. Synergistic effects were analyzed based on the first order kinetic rate model. It was found that the synergistic effect was observed for all the experiments conducted which resulted from an increase in the (•OH) radicals due to the photolysis of H2O2 formed by the sonolysis process. This hybrid system, sonophotolysis system, was able to degrade RB5 into intermediates with a total reaction time of 1h.
format Article
author Collin Glen Joseph Anthony Joseph
Yap, Taufiq Yun Hin
Vigneswar Krishnan
author_facet Collin Glen Joseph Anthony Joseph
Yap, Taufiq Yun Hin
Vigneswar Krishnan
author_sort Collin Glen Joseph Anthony Joseph
title Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
title_short Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
title_full Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
title_fullStr Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
title_full_unstemmed Ultrasonic assisted photolytic degradation of Reactive Black 5 (RB5) simulated wastewater
title_sort ultrasonic assisted photolytic degradation of reactive black 5 (rb5) simulated wastewater
publisher Gadjah Mada University
publishDate 2017
url https://eprints.ums.edu.my/id/eprint/30084/1/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/30084/2/Ultrasonic%20assisted%20photolytic%20degradation%20of%20Reactive%20Black%205%20%28RB5%29%20simulated%20wastewater%20FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/30084/
https://journal.ugm.ac.id/AJChE/article/view/49554
https://doi.org/10.22146/ajche.49554
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score 13.211869

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