The Combination of Ozone/Hydrogen Peroxide and Ozone/UV Radiation for Reduction of Trihalomethane Formation Potential in Surface Water

Wallace, James; Vahadi, B.; Fernandes, Joseph B.; Boyden, Brace H.

doi:10.1080/01919518808552509

Cited by 21 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past, the ozone/UV process has been shown to be effective for the removal of the following materials from wastewater or aqueous solutions: cyanides (), refractory organic compounds, such as aliphatic carboxylic acids (acetic, oxalic, propionic, succinic, and malonic) and methyl and ethyl alcohols (), p -chloronitrobenzene (), pentachlorophenol, and other substituted phenols ( , ), among other compounds. The ozone/UV process was also used to partially oxidize natural organic matter in water to reduce subsequent formation of trihalomethanes ( − ). More recently, the process was shown to be very effective in degrading fuel oxygenates such as MTBE and TBA in dilute aqueous solutions ( , ).…”

Section: Introductionmentioning

confidence: 99%

Modeling Aqueous Ozone/UV Process Using Oxalic Acid as Probe Chemical

Garoma

Gurol

2005

Environ. Sci. Technol.

View full text Add to dashboard Cite

A kinetic model that describes the removal of organic pollutants by an ozone/UV process is described. Oxalic acid, which reacts with a very low rate constant with ozone and relatively high rate constant with hydroxyl radical (OH*), was used as the probe chemical to model the process. The model was verified by experimental data on concentrations of oxalic acid and hydrogen peroxide (H202) under various experimental conditions, i.e., ozone gas dosage, UV light intensity, and varying oxalic acid concentrations.

show abstract

Section: Introductionmentioning

confidence: 99%

Modeling Aqueous Ozone/UV Process Using Oxalic Acid as Probe Chemical

Garoma

Gurol

2005

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…x, y, z are the stoichiometric numbers of hydroxyl radicals, carbon dioxide, and water participating in the reaction As shown in reaction (1), ultraviolet light will dissociate hydrogen peroxide at a selected wavelength producing hydroxyl radicals (Wallace, et al, 1988). However, in the case of ozone, the ultraviolet radiation dissociates ozone into an oxygen molecule and an oxygen atom PHOTOCHEMICAL OXIDATION TECHNOLOGY 957 in the ID state as shown in reaction (2).…”

Section: Oxidation Of Organicsmentioning

confidence: 97%

“…It also triggers excitation of the various organic species and subsequent intermediates. Such enhancement of the photochemical reactions is not possible by ozone only or hydrogen peroxide only systems (Wallace, et al, 1988;and Gurol and Vatistas, 1987). The UV light functions in three basic ways (Fletcher, Leitis, and Nguyen, 1989):…”

Section: Progress Of Reactionsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of photochemical oxidation technology for remediation of ground water contaminated with organics

Paul

Canter

1990

Journal of Environmental Science and Health . Part A: Environme

View full text Add to dashboard Cite

Ozone

Wojtowicz¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

This article discusses solubility, absorptivity, explosivity, as well as thermodynamic, spectral, structural, and other physical properties of ozone in the gaseous, liquid, and solid states; it reviews both organic and inorganic chemistry and offers various analytical methods for determining ozone in the solution and the gas phase. It examines, from a mechanistic viewpoint, not only the thermal and photochemical decomposition of gaseous and aqueous ozone, but also its generation, including gas preparation, electrical requirements and characteristics, efficiency, costs, and design. In addition, the article investigates atmospheric ozone formation in the troposphere and the stratosphere from the standpoint of photochemical smog, surveying the effect of natural and anthropogenic contaminants on ozone decomposition. Finally, the article considers numerous health and safety issues, including such topics as the depletion of ozone layer, environmental and human exposure, and ozone disinfection by‐products. Ozone can be used in drinking water, high purity water for bottling and canning plants, as well as the pharmaceutical and electronics industry; it can be used to bleach textiles and natural products, to control industrial wastewater pollution and sewage, to disinfect wastewater as well as water for large aquariums and shrimp hatcheries, to treat process water, swimming pools, and spas; it can also be used for pulp bleaching, organic synthesis, medical applications, and food preservation. Vol. 17, pp. 953–994, 168 refs. to May 1995.

show abstract

The Combination of Ozone/Hydrogen Peroxide and Ozone/UV Radiation for Reduction of Trihalomethane Formation Potential in Surface Water

Cited by 21 publications

References 5 publications

Modeling Aqueous Ozone/UV Process Using Oxalic Acid as Probe Chemical

Modeling Aqueous Ozone/UV Process Using Oxalic Acid as Probe Chemical

Evaluation of photochemical oxidation technology for remediation of ground water contaminated with organics

Ozone

Contact Info

Product

Resources

About