LAPSE:2021.0773
Published Article
LAPSE:2021.0773
Computational Fluid Dynamics Modeling of Rotating Annular VUV/UV Photoreactor for Water Treatment
Minghan Luo, Wenjie Xu, Xiaorong Kang, Keqiang Ding, Taeseop Jeong
October 14, 2021
The ultraviolet photochemical degradation process is widely recognized as a low-cost, environmentally friendly, and sustainable technology for water treatment. This study integrated computational fluid dynamics (CFD) and a photoreactive kinetic model to investigate the effects of flow characteristics on the contaminant degradation performance of a rotating annular photoreactor with a vacuum-UV (VUV)/UV process performed in continuous flow mode. The results demonstrated that the introduced fluid remained in intensive rotational movement inside the reactor for a wide range of inflow rates, and the rotational movement was enhanced with increasing influent speed within the studied velocity range. The CFD modeling results were consistent with the experimental abatement of methylene blue (MB), although the model slightly overestimated MB degradation because it did not fully account for the consumption of OH radicals from byproducts generated in the MB decomposition processes. The OH radical generation and contaminant degradation efficiency of the VUV/UV process showed strong correlation with the mixing level in a photoreactor, which confirmed the promising potential of the developed rotating annular VUV reactor in water treatment.
Keywords
Computational Fluid Dynamics, MB, photoreactor, VUV, water treatment
Suggested Citation
Luo M, Xu W, Kang X, Ding K, Jeong T. Computational Fluid Dynamics Modeling of Rotating Annular VUV/UV Photoreactor for Water Treatment. (2021). LAPSE:2021.0773
Author Affiliations
Luo M: School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China; Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
Xu W: School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Kang X: School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China [ORCID]
Ding K: School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Jeong T: Department of Environmental Engineering, Chonbuk National University, Jeonju 561-756, Korea
Journal Name
Processes
Volume
9
Issue
1
First Page
pr9010079
Year
2020
Publication Date
2020-12-31
Published Version
ISSN
2227-9717
Version Comments
Original Submission
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PII: pr9010079, Publication Type: Journal Article
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LAPSE:2021.0773
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doi:10.3390/pr9010079
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Oct 14, 2021
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CC BY 4.0
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[v1] (Original Submission)
Oct 14, 2021
 
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Oct 14, 2021
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Original Submitter
Calvin Tsay
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