Ozone Decolorization of Mixed-Dye Solutions in a Gas-Induced Reactor
Abstract:Ozone decolorization of several mixed two- and three-dye solutions was studied using a newly developed gas-induced reactor. Decolorization kinetics of the mixed-dye solutions, the ozone utilization rate, and chemical oxygen demand (COD) elimination during decolorization were all examined. In the kinetic study, the method of absorption of dye solution during ozonation was used with mixed two-dye solutions. For more complicated mixed three-dye solutions, the method of the American Dye Manufacturers Institute (New York) for determining decolorization kinetics was adopted. Overall, pseudo-first-order kinetics can be used to describe the behavior of mixed-dye solutions during decolorization; however, two-stage decolorization kinetics occur in certain mixed three-dye solutions. Using the gasinduced reactor, a greater than 90% ozone utilization rate was obtained before 90% decolorization was reached. The elimination of COD was approximately 33% before 96% decolorization.
Document Type: Research Article
Publication date: 2001-07-01
More about this publication?
- Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.
Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year. Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Information for Advertisers
- WEF Bookstore
- Ingenta Connect is not responsible for the content or availability of external websites