Electrochemical oxidation of Basic Blue 3 dye using a diamond anode: evaluation of colour, COD and toxicity removal
| Autor: | Ülker Bakır Öğütveren, A. Savaş Koparal, Yusuf Yavuz |
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| Přispěvatelé: | Anadolu Üniversitesi, Koparal, Ali Savas/0000-0002-6894-5604, Koparal, Ali Savaş, Öğütveren, Ülker Bakır |
| Rok vydání: | 2010 |
| Předmět: |
Electrochemical Oxidation
Toxicity Renewable Energy Sustainability and the Environment Supporting electrolyte General Chemical Engineering Organic Chemistry Chemical oxygen demand Inorganic chemistry Environmental engineering Electrolyte Electrochemistry Pollution Anode Inorganic Chemistry Raschig ring chemistry.chemical_compound Fuel Technology chemistry Wastewater Boron-Doped Diamond Sodium sulfate Bipolar Trickle Tower Reactor Basic Blue 3 Dye Waste Management and Disposal Biotechnology |
| Zdroj: | Journal of Chemical Technology & Biotechnology. 86:261-265 |
| ISSN: | 0268-2575 |
| DOI: | 10.1002/jctb.2512 |
| Popis: | WOS: 000286852200013 BACKGROUND: Textile industries generate considerable amounts of waste-water, which may contain strong colour, suspended particles, salts, high pH and high chemical oxygen demand (COD) concentration. The disposal of these coloured wastewaters poses a major problem for the industry as well as a threat to the environment. In this study, electrochemical oxidation of Basic Blue 3 (BB3) dye was studied in a bipolar trickle tower (BTT) reactor using Raschig ring shaped boron-doped diamond (BDD) electrodes in recirculated batch mode. The effects of current density, temperature, flow rate, sodium sulfate concentration (Na(2)SO(4)) as supporting electrolyte, and initial dye concentration were investigated. RESULTS: The best experimental conditions obtained were as follows: current density 0.875 mA cm(-2), temperature 30 degrees C, flow rate 109.5 ml min(-1), Na(2)SO(4) concentration 0.01 mol L(-1). Under these conditions, 99% colour and 86.7% COD removal were achieved. Toxicity tests were also performed on BB3 solutions under the best experimental conditions. CONCLUSION: Based on these results, the BDD anode was found to be very successful for the simultaneous degradation of BB3 and removal of COD. Additional toxicity test results also showed that electrochemical treatment using a BDD Raschig ring anode in a BTT reactor is an effective way of reducing toxicity as well as removing colour and COD |
| Databáze: | OpenAIRE |
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