Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor

Reliance J. Mhlanga, Nhlanhla Nyembe, Haleden Chiririwa, Aoyi Ochieng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Advanced oxidation processes (AOPs) have emerged as promising techniques for the treatment of wastewater containing complex organic compounds. In this study, experiments were carried out to determine the effect of superficial gas velocity on the hydrodynamic conditions (average gas hold-up & bubble size) and the effect of operating conditions on the photodegradation of methyl orange (MO) in a fluidized bed photoreactor. Optimum operating parameters were found to be: time of 120 min, catalyst loading of 1.5 g/L and the superficial gas velocity being 212.23 mm/s. An increase in the superficial gas velocity increases the average gas hold-up and bubble size. The effect of hydrodynamic conditions on photodegradation showed that an increase in the superficial gas velocity results in an increase in the removal of color and total organic carbon (TOC) removal.
Original languageEnglish
Title of host publicationProceedings of 2016 5th International Conference on Advances in Engineering and Technology
Pages23-29
Number of pages7
ISBN (Electronic) 978-93-84422-69-1
Publication statusPublished - 2016
Event2016 5th International Conference on Advances in Engineering and Technology - New York, United States
Duration: Jun 8 2016Jun 9 2016

Conference

Conference2016 5th International Conference on Advances in Engineering and Technology
Abbreviated titleICAET 2016
CountryUnited States
CityNew York
Period6/8/166/9/16

Fingerprint

photodegradation
hydrodynamics
gas
bubble
total organic carbon
organic compound
catalyst
wastewater
oxidation
effect
experiment

Cite this

Mhlanga, R. J., Nyembe, N., Chiririwa, H., & Ochieng, A. (2016). Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor. In Proceedings of 2016 5th International Conference on Advances in Engineering and Technology (pp. 23-29)
Mhlanga, Reliance J. ; Nyembe, Nhlanhla ; Chiririwa, Haleden ; Ochieng, Aoyi. / Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor. Proceedings of 2016 5th International Conference on Advances in Engineering and Technology . 2016. pp. 23-29
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Mhlanga, RJ, Nyembe, N, Chiririwa, H & Ochieng, A 2016, Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor. in Proceedings of 2016 5th International Conference on Advances in Engineering and Technology . pp. 23-29, 2016 5th International Conference on Advances in Engineering and Technology, New York, United States, 6/8/16.

Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor. / Mhlanga, Reliance J.; Nyembe, Nhlanhla; Chiririwa, Haleden; Ochieng, Aoyi.

Proceedings of 2016 5th International Conference on Advances in Engineering and Technology . 2016. p. 23-29.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Chiririwa, Haleden

AU - Ochieng, Aoyi

PY - 2016

Y1 - 2016

N2 - Advanced oxidation processes (AOPs) have emerged as promising techniques for the treatment of wastewater containing complex organic compounds. In this study, experiments were carried out to determine the effect of superficial gas velocity on the hydrodynamic conditions (average gas hold-up & bubble size) and the effect of operating conditions on the photodegradation of methyl orange (MO) in a fluidized bed photoreactor. Optimum operating parameters were found to be: time of 120 min, catalyst loading of 1.5 g/L and the superficial gas velocity being 212.23 mm/s. An increase in the superficial gas velocity increases the average gas hold-up and bubble size. The effect of hydrodynamic conditions on photodegradation showed that an increase in the superficial gas velocity results in an increase in the removal of color and total organic carbon (TOC) removal.

AB - Advanced oxidation processes (AOPs) have emerged as promising techniques for the treatment of wastewater containing complex organic compounds. In this study, experiments were carried out to determine the effect of superficial gas velocity on the hydrodynamic conditions (average gas hold-up & bubble size) and the effect of operating conditions on the photodegradation of methyl orange (MO) in a fluidized bed photoreactor. Optimum operating parameters were found to be: time of 120 min, catalyst loading of 1.5 g/L and the superficial gas velocity being 212.23 mm/s. An increase in the superficial gas velocity increases the average gas hold-up and bubble size. The effect of hydrodynamic conditions on photodegradation showed that an increase in the superficial gas velocity results in an increase in the removal of color and total organic carbon (TOC) removal.

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Mhlanga RJ, Nyembe N, Chiririwa H, Ochieng A. Hydrodynamic Conditions and Photodegradation of Methyl Orange in a Fluidized Bed Photoreactor. In Proceedings of 2016 5th International Conference on Advances in Engineering and Technology . 2016. p. 23-29