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dc.contributor.authorZheng, Tianlong
dc.contributor.authorWang, Qunhui
dc.contributor.authorZhang, Tao
dc.contributor.authorShi, Zhining
dc.contributor.authorTian, Yanli
dc.contributor.authorShi, Shanshan
dc.contributor.authorSmale, Nicholas
dc.contributor.authorWang, Juan
dc.date.accessioned2015-03-30T12:49:49Z
dc.date.available2015-03-30T12:49:49Z
dc.date.issued2015-02-02
dc.identifier.citationMicrobubble enhanced ozonation process for advanced treatment of wastewater produced in acrylic fiber manufacturing industry 2015, 287:412 Journal of Hazardous Materials
dc.identifier.issn03043894
dc.identifier.pmid25681716
dc.identifier.doi10.1016/j.jhazmat.2015.01.069
dc.identifier.urihttp://hdl.handle.net/10754/347289
dc.description.abstractThis work investigated microbubble-ozonation for the treatment of a refractory wet-spun acrylic fiber wastewater in comparison to macrobubble-ozonation. CODcr, NH3-N, and UV254 of the wastewater were removed by 42%, 21%, and 42%, respectively in the microbubble-ozonation, being 25%, 9%, and 35% higher than the removal rates achieved by macrobubble-ozonation at the same ozone dose. The microbubbles (with average diameter of 45μm) had a high concentration of 3.9×105 counts/mL at a gas flow rate of 0.5L/min. The gas holdup, total ozone mass-transfer coefficient, and average ozone utilization efficiency in the microbubble-ozonation were 6.6, 2.2, and 1.5 times higher than those of the macrobubble-ozonation. Greater generation of hydroxyl radicals and a higher zeta potential of the bubbles were also observed in the microbubble ozonation process. The biodegradability of the wastewater was also significantly improved by microbubble-ozonation, which was ascribed to the enhanced degradation of alkanes, aromatic compounds, and the many other bio-refractory organic compounds in the wastewater. Microbubble-ozonation can thus be a more effective treatment process than traditional macrobubble-ozonation for refractory wastewater produced by the acrylic fiber manufacturing industry.
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0304389415000801
dc.rightsArchived with thanks to Journal of Hazardous Materials. Copyright © 2015 Elsevier B.V. All rights reserved.
dc.titleMicrobubble enhanced ozonation process for advanced treatment of wastewater produced in acrylic fiber manufacturing industry
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Hazardous Materials
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
dc.contributor.institutionBeijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
dc.contributor.institutionSchool of Earth and Environmental Sciences, The University of Adelaide, South Australia 5005, Australia
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personZhang, Tao
refterms.dateFOA2017-02-02T00:00:00Z
dc.date.published-online2015-02-02
dc.date.published-print2015-04


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