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Non-thermal Plasma Technology for Methylene Blue Decolorization in Continuous and Circulating System: Kinetic Model and Reactor Performance

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Published/Copyright: November 30, 2016
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Journal of Advanced Oxidation Technologies
From the journal Journal of Advanced Oxidation Technologies Volume 17 Issue 2

Abstract

This study described methylene blue (MB) decolorization in continuous and circulating electrical plasma system constituted by an airtight plasma reactor and subsequent reaction column. The preferable parameters in continuous mode were input voltage of 45 kV, gas flow rate of 40 L h-1, the initial pH of 7.62 and low solution conductivity. More preferable treatment efficiencies were observed at lower liquid flow rate, e.g., approximately 98% for 10 mg L-1, 96% for 20 mg L-1, 93% for 30 mg L-1 and 90% for 40 mg L-1, respectively at liquid flow rate of 1.5 L h-1. In this mode, the rate constants can be calculated based on first-order-kinetics. After plasma treatment, the biodegradability was significantly improved and in this case, a post-biological treatment can be suggested. In addition, initial dye concentration and liquid flow rate posed effects on dye removal in circulating experiments, which can also be well predicted by first-order-kinetic model. Finally, primary plasma oxidation intermediates were detected by using HPLC/MS.

Keywords : Methylene blue; Electrical discharge plasma; Continuous mode; Circulating mode; Decolorization
Received: 2014-2-12
Revised: 2014-6-4
Accepted: 2014-6-4
Published Online: 2016-11-30
Published in Print: 2014-7-1

© 2016 by Walter de Gruyter Berlin/Boston

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  1. The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 1: A Review
  2. The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 2: Photocatalytic Conversion of Glycerol to Hydrogen in Batch and Semi-batch Laboratory Reactors
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  21. Oxalic Acid Treating of ZSM-5 Zeolite for the Enhanced Photocatalytic Activity of TiO2/HZSM-5
  22. Properties of In-TiO2 Photocatalyst as the Factors of Indium Doping Content and Calcination Temperature
  23. Non-thermal Plasma Degradation of Anthraquinonic Dye in Water: Oxidation Pathways and Effect of Natural Matrices
  24. Supercritical Water Oxidation of Wastewater-based Drilling Fluid with Glycol Addition
  25. Degradation of Chrysoidin Dye by Fenton and Photo-Fenton Reaction Using Natural Marmatite as Catalyst
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https://doi.org/10.1515/jaots-2014-0212
Keywords for this article
Methylene blue; Electrical discharge plasma; Continuous mode; Circulating mode; Decolorization

Articles in the same Issue

  1. The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 1: A Review
  2. The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 2: Photocatalytic Conversion of Glycerol to Hydrogen in Batch and Semi-batch Laboratory Reactors
  3. Photo-fenton Oxidation of t-Butyl methyl ether in Presence of LaFeO3 Supported on Monolithic Structure
  4. Functionalization of Ceramic Tiles with N-doped TiO2 and Their Photocatalytic Function Under UV or Visible Light Irradiation
  5. Mechanism of Synergistic Photocatalytic Cr(VI)-reduction and Benzoic Acid Oxidatiοn by Visible Light Active TiO2 Photocatalysts
  6. Baeyer-Viiliger Oxidation of Cyclic Ketones Using Aqueous Hydrogen Peroxide Catalyzed by Heteropolyacids in Solvent-free System
  7. Progresses of Fundamental Research and Application of Atmospheric Pressure Townsend Discharge
  8. Synthesis, Characterization and Study of the Photocatalytic Activity of the Ti/Fe Mixed Oxide
  9. Improvement of Stability for NO Removal in Multipoint Barrier Discharge Reactor by Pulse Applied Voltage
  10. Preservation of Fresh Food Using AC Electric Field
  11. Simultaneous Photocatalytic Reduction and Removal of Cr(VI) on TiO2 Immobilized by ACF
  12. Non-thermal Plasma Technology for Methylene Blue Decolorization in Continuous and Circulating System: Kinetic Model and Reactor Performance
  13. Scale-up Preparation of Titania Bundle-like Nanopowders via Hydrothermal Reaction by Using Titanium Powder as Precursor
  14. Enhanced Solar Light Photoelectrocatalytic Activity in Water by Anatase-to-rutile TiO2 Transformation
  15. ZnO Photocatalysis Using Solar Energy for the Removal of Trace Amounts of Alfa-Methylstyrene, Diquat and Indigo Carmine from Water
  16. Effect of Chloride and Sulfate Ions on the Photoreduction Rate of Ferric Ion in UV Reactor Equipped with a Low Pressure Mercury Lamp
  17. Synthesis and Characterization of Large-size Hybrid 1-D TiO2 Nanostructured Films on Ti Sheet with All-in-one Structure
  18. Supercritical Water Oxidation of Oily Wastewater
  19. Solar and Artificial UV Inactivation of Bacterial Microbes by Ca-alginate Immobilized TiO2 Assisted by H2O2 Using Fluidized Bed Photoreactors
  20. Catalytic Performance and Characterization of Copper-based Rare Earth Composite Materials for Selective Catalytic Oxidation Reaction with Simulated Synthetic Ammonia Stream
  21. Oxalic Acid Treating of ZSM-5 Zeolite for the Enhanced Photocatalytic Activity of TiO2/HZSM-5
  22. Properties of In-TiO2 Photocatalyst as the Factors of Indium Doping Content and Calcination Temperature
  23. Non-thermal Plasma Degradation of Anthraquinonic Dye in Water: Oxidation Pathways and Effect of Natural Matrices
  24. Supercritical Water Oxidation of Wastewater-based Drilling Fluid with Glycol Addition
  25. Degradation of Chrysoidin Dye by Fenton and Photo-Fenton Reaction Using Natural Marmatite as Catalyst
  26. Initial Concentration Dependence of Dimethyl Sulfoxide Oxidation by Pulsed Discharge Plasma in Air with Water Droplets Spray
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