Laboratory batch experiments of the combined effects of ultrasound and air stripping in removing CCl4 and 1,1,1-TCA from water

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dc.contributor.authorAyyildiz, O
dc.contributor.authorAnderson, PR
dc.contributor.authorPeters, RW
dc.date.accessioned2025-01-27T20:12:00Z
dc.date.available2025-01-27T20:12:00Z
dc.date.issued2005
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractUltrasonic and air-stripping techniques for removal of carbon tetrachloride (CCl4) and 1,1,1-trichloroethane (1,1,1-TCA) from water were studied in batch experiments. Ultrasound (US) is effective for destroying organic compounds in aqueous solutions whereas air stripping (AS) efficiently transfers volatile compounds from the liquid to the gas phase. In simultaneous US and AS experiments, synergistic effects were observed and attributed to the effect of US on the mass transfer process. Using a photographic method, ultrasonic break up of gas bubbles and changes in gas holdup ratios were examined. In the two different gas-sparging systems studied, ultrasonic waves did not break up gas bubbles. In contrast, bubbles from the smaller porous size diffuser were coalesced due to sonication. In addition, both photographic and gas holdup experiments demonstrated that ultrasonic irradiation increased the gas holdup ratio. The enhancement observed in the removal of the compounds appeared to be due to this greater ultrasonic gas holdup ratio. (c) 2005 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jhazmat.2004.12.026
dc.identifier.endpage156
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.issue1-3
dc.identifier.pmid15811676
dc.identifier.scopus2-s2.0-16244413267
dc.identifier.scopusqualityQ1
dc.identifier.startpage149
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2004.12.026
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20813
dc.identifier.volume120
dc.identifier.wosWOS:000228672200020
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofJournal of Hazardous Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectcarbon tetrachloride trichloroethane
dc.subjectultrasonic irradiation
dc.subjectair stripping
dc.subjectwater
dc.titleLaboratory batch experiments of the combined effects of ultrasound and air stripping in removing CCl4 and 1,1,1-TCA from water
dc.typeArticle

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