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Decolorization of Reactive Black 5 from Synthetic Dye Wastewater by Fenton Process |
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| รหัสดีโอไอ | |
| Creator | 1. Sermpong Sairiam 2. Pumis Thuptimdang 3. Pisut Painmanakul |
| Title | Decolorization of Reactive Black 5 from Synthetic Dye Wastewater by Fenton Process |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2562 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 12 |
| Journal No. | 2 |
| Page no. | 1 - 8 |
| Keyword | Decolorization, Dye wastewater treatment, Fenton process, Reactive Black 5 |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Reactive Black 5 (RB5) is an azo dye commonly used in industries. Its toxicity and non- biodegradability require an effective treatment process. In this study, the oxidation of RB5 wastewater by Fenton process was observed. The experiments were conducted with synthetic RB5 wastewater in a 1-liter batch reactor with a stirrer. The effects of initial ferrous (Fe2+) concentration and pH on RB5 removal were studied. The results showed high removal efficiency (>90%). Increasing the concentration of Fe2+ could increase the RB5 decolorization by Fenton process. The decline of of remaining Fe2+ let to the genertation hydroxyl radicals (ฅOH) from hydrogen peroxide (H2O2). The initial degradation rate of RB5 decolorization was increased from 0.0023 to 0.0754 mM/min. In contrast, the RB5 decolorization of RB5 was decreased when the pH was increased from 3 to 5. The optimal condition of the RB5 removal was determined as follows: pH 3, 5 mM of H2O2, and 0.5 mM of Fe2+. At this condition, the almost complete delorization of RB5 by Fenton process was achieved within 30 minutes. |
