Treatment of textile dye wastewater using ozone combined with photocatalyst |
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| Authors: | M P Gireesh Kumar S Ishii T S Müller K Itoh M Murabayashi |
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| Institution: | 1. Institute of Environmental Science &2. Technology , Yokohama National University , 79–7 Tokiwadai, Hodogaya‐ku, Yokohama, 240, Japan |
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| Abstract: | Ozonolysis combined with photocatalysis was used as a new approach for the treatment of textile dye wastewater containing azo dyes. The color reduction was very fast when only ozone was used for the treatment, but a 90% Total Organic Carbon (TOC) reduction was obtained only during a combined treatment. Reactive Black 5 dye containing two different percentages of NaCl was used for the experiment. The color reduction was fast in the neutral and basic pH. However for a fast TOC reduction acidic pH was found to be more effective. On‐line UV‐Vis spectrophotometry was used to measure the color reduction. |
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| Keywords: | Photocatalysis TiO2 UV ozonolysis dye |
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