Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66047
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dc.contributorDepartment of Civil and Environmental Engineeringen_US
dc.creatorLi, HWen_US
dc.creatorLee, SCen_US
dc.creatorWang, ZWen_US
dc.creatorHuang, Yen_US
dc.creatorHo, WKen_US
dc.creatorCui, Len_US
dc.date.accessioned2017-05-22T02:09:36Z-
dc.date.available2017-05-22T02:09:36Z-
dc.identifier.urihttp://hdl.handle.net/10397/66047-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2017 Elsevier B.V. All rights reserved.en_US
dc.rights© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.en_US
dc.rightsThe following publication Li, H., Lee, S., Wang, Z., Huang, Y., Ho, W., & Cui, L. (2017). Peroxymonosulfate activated by amorphous particulate MnO2 for mineralization of benzene gas: Redox reaction, weighting analysis, and numerical modelling. Chemical Engineering Journal, 316, 61-69 is available at https://doi.org/10.1016/j.cej.2017.01.070en_US
dc.subjectAmorphous particulate MnO2en_US
dc.subjectBenzene gasen_US
dc.subjectMineralizationen_US
dc.subjectNumeric modelen_US
dc.subjectPeroxymonosulfateen_US
dc.subjectWeighting analysisen_US
dc.titlePeroxymonosulfate activated by amorphous particulate MnO2 for mineralization of benzene gas : redox reaction, weighting analysis, and numerical modellingen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage61en_US
dc.identifier.epage69en_US
dc.identifier.volume316en_US
dc.identifier.doi10.1016/j.cej.2017.01.070en_US
dcterms.abstractAmorphous particulate MnO2 (AMO) which features micro-nano hierarchical structure can be viewed as a favorable alternative to crystalline α-MnO2 for Peroxymonosulfate (PMS) activation. The former not only is comparatively simple to obtain but also has similar performance on powerful adsorption and catalytic capability. In this paper, the combined use of AMO and PMS oxidizing system showed the paralleled degradation efficiency of benzene gas with 50.5 ± 3.75%, which was just around 5 percentage points lower than that achieved in the α-MnO2&PMS system. Highly stable catalytic activity of the AMO&PMS system exhibited during an ensuing cyclic experiment, averaging at 63.08% for benzene mineralization. Additionally, a novel method of weighting analysis which evaluates the synergetic effects among operating parameters on benzene removal was firstly explored in the nanosized catalyst-based activation system. Through a novel specific reaction drag model for porous media, specific drag coefficients at various testing conditions, k2, in terms of pressure drop across microporous AMO, were held to establish the correlations between ideal mineralization efficiencies and optimal parameter combinations. A further comparison between laboratory data and model simulations confirmed that, regardless of pH variations, the mineralization rate can be enhanced to around 67.7% at a more higher temperature (45 °C) when the consumed ratio of AMO to PMS leveled off at 0.8, during which time much lower k2 of 0.24 Pa·min·m/mg would present.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationChemical engineering journal, May 2017, v. 316, p. 61-69en_US
dcterms.isPartOfChemical engineering journalen_US
dcterms.issued2017-05-
dc.identifier.scopus2-s2.0-85011300279-
dc.identifier.ros2016000882-
dc.identifier.eissn1385-8947en_US
dc.identifier.rosgroupid2016000867-
dc.description.ros2016-2017 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201804_a bcmaen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberRGC-B1-090-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextThe National Key Research and Development Program of China; The National Science Foundation of China; The Ministry of Science and Technology of Chinaen_US
dc.description.pubStatusPublisheden_US
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