Advanced search
Publication Cover
Ozone: Science & Engineering
The Journal of the International Ozone Association
Volume 37, 2015 - Issue 4
Submit an article Journal homepage
726
Views
45
CrossRef citations to date
0
Altmetric
Original Articles

Degradation of Caffeine by Advanced Oxidative Processes: O3 and O3/UV

Fernanda Siqueira SouzaChemical Engineering Department, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-040, BrazilCorrespondence[email protected]
View further author information
&
Liliana Amaral FérisChemical Engineering Department, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-040, BrazilView further author information
Pages 379-384 | Received 27 Oct 2014, Accepted 23 Jan 2015, Published online: 15 Jun 2015
 
Sample our Earth Sciences journals, sign in here to start your access, latest two full volumes FREE to you for 14 days

Abstract

The degradation of caffeine by ozone was investigated in this article. In the laboratory experimental scale, the effect of pH, caffeine initial concentration, power UV light and reaction time were studied by experimental design. The use of response surface methodology (RSM) allowed to adjust the optimal regions of the parameters leading to the response factor (% mineralization). In addition, a single polynomial expression for modeling the reaction was obtained. Results clearly demonstrated that caffeine is quickly degraded, but not mineralized as quickly. The results indicated that the caffeine mineralization rate increased with pH and reaction time. Power UV light showed little effect on mineralization efficiency.

Additional information

Funding

The authors thank CAPES for the scholarship and FAPERGS (Project No. 13.2002-6) for the financial support of this work.

Log in via your institution

Access through your institution

Log in to Taylor & Francis Online

Restore content access

Restore content access for purchases made as guest
Purchase options * Save for later

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 403.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.