Photocatalytic Treatment of A Dye Polluted Industrial Effluent With A Solar Pilot-Scale CPC Reactor
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Jose Colina –Márquez
Abstract
Printing and textile industries produce considerable amounts of dye polluted wastewater. Most of these residues are non-biodegradable and are persistent in the environment. The TiO2-based photocatalysis has been tested for degradation of several dyes and pigments used at industrial scale. In this study, an effluent sample from washing streams of printing-rollers was treated by heterogeneous photocatalysis. The system used for this test was a CPC pilot-scale reactor. The experimental design consisted in a Taguchi system with the initial concentration of pollutant mixture (dilution factor), and the catalyst load as main effects. The noise factor was the accumulated UV solar energy, and the dye degradation was the response variable. The best signal-to-noise ratios were achieved at larger dilution factors and catalyst loads. The kinetics of this heterogeneous photocatalytic degradation treatment was modeled by a modified Langmuir-Hinselwood expression with accumulated UV energy per unit of volume as independent variable. The kinetic and adsorption parameters were found with this mathematical model.
© 2016 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Synthesis of TiO2/Au Nanocomposites via Sol-Gel Process for Photooxidation of Methanol
- Design of CeyCoxTi (1-x) O3+δ Perovskite for Photocatalysis: A Statistical Study
- Electro-Fenton Treatment of TNT in Aqueous Media in Presence of Cyclodextrin. Application to Ex-situ Treatment of Contaminated Soil
- A Quantum Mechanical Approach to TiO2 Photocatalysis
- Removal of Color Compounds from Recycled Water Using Combined Activated Carbon Adsorption and AOP Decomposition
- Preparation of Co-doped TiO2 for Photocatalytic Degradation of NOx in Air under Visible Light
- Depletion of Several Antibiotics Used in Industrial Process Using Immobilized TiO2
- Oxidative Pretreatment of Fresh and Mature Landfill Leachate
- Titanium Dioxide onto Polyethylene for Water Decontamination
- Application of Photocatalysis for the Removal of Natural Organic Matter in Simulated Surface and Ground Waters
- Photocatalytic Treatment of A Dye Polluted Industrial Effluent With A Solar Pilot-Scale CPC Reactor
- Evaluation of the Algaecide Activity of Titanium Dioxide on Autoclaved Aerated Concrete
- Degradation of 4-n-nonylphenol in Water by 20 kHz Ultrasound
- Integration of Photocatalysis with Ultrafiltration or Membrane Distillation for Removal of Azo Dye Direct Green 99 from Water
- Binder Effect on Photocatalytic Performance of TiO2 Solution Coating Layers
- Rhodamine B Discolouration on TiO2 in the Cement Environment: A Look at Fundamental Aspects of the Self-cleaning Effect in Concretes
- Effects of Inorganic Anions and Humic Acid on the Photocatalytic and Ozone Oxidation of Oxytetracycline in Aqueous Solution
