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Influence of Natural Organic Matter on Oxidation of Volatile Organic Compounds by the H2O2/VisUV Process

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Published/Copyright: January 26, 2017
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Journal of Advanced Oxidation Technologies
From the journal Journal of Advanced Oxidation Technologies Volume 2 Issue 3

Abstract

This paper presents experimental research to determine the affect of background natural organic material (NOM) on the conversion of five (5) VOC's: 1,1,1-trichloroethane (TCA), benzene (BNZ), trichloroethylene (TCE), 1,4-dichlorobenzene (DCB), and tetrachloroethylene (PCE). Experiments were conducted using DI water and Houston tap water ([TOC] = 3.6 mg/L) as solvents. In addition, the affects of buffer form and excess hydrogen peroxide were determined. Experimental runs were conducted in a photochemical-flow-stirred-tank reactor (pcfSTR), using a 450 W visible/ultraviolet radiation source. The data were analyzed using the Prengle- Shimoda reaction rate model, yielding the reaction rate constant ka (μmols A conv/min, Lr, photon flux) for comparison purposes. Analysis of the experimental data indicated the following conclusions: 1) At the concentrations used for bicarbonate or phosphate buffer, little or no affect was observed; 2) The presence of NOM surpressed the reaction rate for three of the compounds, TCA, BNZ, and PCE at the 95 % confidence level; and 3) Excess hydrogen peroxide, beyond the stoichiometric value, increased the reaction rate constant for all five compounds. The greatest increase was seen for DCB.

Received: 1996-11-11
Accepted: 1997-8-12
Published Online: 2017-1-26
Published in Print: 1997-7-1

© 2017 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Masthead
  2. Contents
  3. Preface
  4. Editorial
  5. Research Articles
  6. Integration of Chemical and Biological Oxidation Processes for Water Treatment: II. Recent Illustrations and Experiences
  7. Treatment of VX Hydrolysate with Ultraviolet Light and Hydrogen Peroxide
  8. Influence of Natural Organic Matter on Oxidation of Volatile Organic Compounds by the H2O2/VisUV Process
  9. Photoinduced Degradation of Environmental Pollutants in the Presence of O2-Free Ozone
  10. A Comparison of Acetophenone Photooxidation in Aqueous Media Via Direct Photolysis and TiO2 Photocatalysis
  11. Application of Advanced Oxidation Process Technologies to Extremely High TOC Containing Aqueous Solutions
  12. Kinetic Modeling for Process Optimization During the Free-Radical Treatment of Nitro Compounds in Aqueous Solution
  13. Combination of UV Oxidation with Other Treatment Technologies for the Remediation of Contaminated Water
  14. UV/H2O2 Degradation and Toxicity Reduction of Textile Azo Dyes: Remazol Black-B, a Case Study
https://doi.org/10.1515/jaots-1997-0306

Articles in the same Issue

  1. Masthead
  2. Contents
  3. Preface
  4. Editorial
  5. Research Articles
  6. Integration of Chemical and Biological Oxidation Processes for Water Treatment: II. Recent Illustrations and Experiences
  7. Treatment of VX Hydrolysate with Ultraviolet Light and Hydrogen Peroxide
  8. Influence of Natural Organic Matter on Oxidation of Volatile Organic Compounds by the H2O2/VisUV Process
  9. Photoinduced Degradation of Environmental Pollutants in the Presence of O2-Free Ozone
  10. A Comparison of Acetophenone Photooxidation in Aqueous Media Via Direct Photolysis and TiO2 Photocatalysis
  11. Application of Advanced Oxidation Process Technologies to Extremely High TOC Containing Aqueous Solutions
  12. Kinetic Modeling for Process Optimization During the Free-Radical Treatment of Nitro Compounds in Aqueous Solution
  13. Combination of UV Oxidation with Other Treatment Technologies for the Remediation of Contaminated Water
  14. UV/H2O2 Degradation and Toxicity Reduction of Textile Azo Dyes: Remazol Black-B, a Case Study
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