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Comparing the Formation of Bromate and Bromoform Due to Ozonation and UV-TiO2 Oxidation in Seawater
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Ryan M. Brookman
Published/Copyright:
November 30, 2016
Abstract
This study compared bromate formation between ozonation and UV with suspended titanium dioxide (TiO2) oxidation in seawater. It also studied the physical and chemical sustainability of TiO2 nanoparticles following the oxidation process with UV light. The study was carried out using a collimated beam for UV light and an ozone generator that utilized the corona discharge method. Seawater was used for photocatalysis and ozonation experiments to relate bromate formation to aquaculture applications. Artificial brackish water was used to relate bromate formation to drinking water sources that face seawater intrusion. A key finding from the study was that disinfection by UV-TiO2 produced a lower concentration of DBPs than disinfection by ozone. In particular, this study found that ozonation produced up to 4.5 mgL-1 of bromate, whereas UV-TiO2 did not produce bromate at detectable concentrations (<5 μgL-1). Bromoform after disinfection by ozone was as high as 148 μgL-1, but was below the detection limit (<5.9 μgL-1) after UV-TiO2.
Keywords : titaniumdioxide; nanoparticles; bromoform; ozone; ultraviolet (UV); disinfection by-products (DBPs)
Received: 2010-7-20
Revised: 2010-10-12
Accepted: 2010-10-12
Published Online: 2016-11-30
Published in Print: 2011-1-1
© 2016 by Walter de Gruyter Berlin/Boston
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Keywords for this article
titaniumdioxide;
nanoparticles;
bromoform;
ozone;
ultraviolet (UV);
disinfection by-products (DBPs)
Articles in the same Issue
- Application of Fenton’s Reaction for Food-processing Wastewater Treatment
- Degradation of Acid Orange 7 Solution by Air-liquid Gliding Arc Discharge in Combination with TiO2 Catalyst
- Comparing the Formation of Bromate and Bromoform Due to Ozonation and UV-TiO2 Oxidation in Seawater
- Degradation of Ibuprofen Sodium Salt in a Hybrid Photolysis – Membrane Distillation System Utilizing Germicidal UVC Lamp
- Significance of TiO2 Photocatalysis for Green Chemistry
- Electrochemical Treatment of Segregated Effluents from the D-Stage in ECF Kraft Cellulose Bleaching
- A Study on the Removal of Natural Organic Matter and Disinfection Byproducts Formation Potential from Groundwater Using Fenton’s Process
- Investigation of Electric Discharge Sound in Atmospheric Pressure Plasma Using Optical Wave Microphone
- Formal Bimolecular Kinetic Model for the Ozonation of Ciprofloxacin in the Liquid Phase
- Removing Estrogenic Steroids from Waters: The Role of Reducing Hydrated Electron Reactions
- Photocatalytic Inactivation of Escherichia coli with LbL Fabricated Immobilized TiO2 Thin Films
- Solution Combustion Synthesis of BiVO4 Nanoparticles: Effect of Combustion Precursors on the Photocatalytic Activity
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- Photocatalytic Degradation of Acid Red G by Bismuth Titanate in Three-phase Fluidized Bed Photoreactor
- Catalytic Epoxidation of Allyl Alcohol with Hydrogen Peroxide under Autogenic Pressure over Ti-MWW Catalyst
- Recent Progress of Nano-Seconds Pulsed Discharge and its Applications
- Ozonation of Municipal Secondary Effluent; Removal of Hazardous Micropollutants and Related Changes of Organic Matter Composition
- Effect of Post-annealing on the Photocatalytic Activity of Hydrothermally Synthesised Titania Nanotubes
- Low Temperature Preparation of Porous Crystalline TiO2 Films Using a Combination of Electrochemical and Electrophoretical Deposition
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