Advanced oxidation processes. Description of a kinetic model for the oxidation of hazardous materials in aqueous media with ozone and hydrogen peroxide in a semibatch reactor

1989 ◽  
Vol 28 (11) ◽  
pp. 1573-1580 ◽  
Author(s):  
William H. Glaze ◽  
Joon Wun Kang
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Model ◽  
Advanced Oxidation Processes ◽  
Aqueous Media ◽  
Advanced Oxidation ◽  
Hazardous Materials ◽  
Oxidation Processes ◽  
Semibatch Reactor

Chemical Models of Advanced Oxidation Processes

1992 ◽  
Vol 27 (1) ◽  
pp. 23-42 ◽  
Author(s):  
William H. Glaze ◽  
Fernando Beltran ◽  
Tuula Tuhkanen ◽  
Joon-Wun Kang
Keyword(s):  
Hydrogen Peroxide ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Industrial Wastes ◽  
Organic Substances ◽  
Ultrapure Water ◽  
Radical Scavengers ◽  
Oxidation Processes ◽  
Radical Intermediates ◽  
Chemical Models

Abstract Advanced oxidation processes (AOPs) have been defined as near-ambient temperature processes that involve the generation of highly reactive radical intermediates, especially the hydroxyl radical. These processes show promise for the destruction of hazardous organic substances in municipal and industrial wastes, in drinking water and in ultrapure water. Three types of AOPs are considered in this paper: catalyzed decomposition of ozone; ozone with hydrogen peroxide (Peroxone); and photolysis of hydrogen peroxide with ultraviolet radiation. Kinetic models for these processes are being developed based on known chemical and photochemical principles. The models take into account measured effects of radical scavengers such as bicarbonate; dose ratios of the oxidants or UV intensity; pH; and the presence of generic radical scavengers. The models are used to discuss two cases: oxidation of parts-per-million levels of nitrobenzene with ozone, Peroxone and peroxide/UV and oxidation of naphthalene and pentachlorophenol with peroxide/UV.

scholarly journals Comparison of Landfill Leachate Treatment Efficiency Using the Advanced Oxidation Processes

2013 ◽  
Vol 39 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Barbara Pieczykolan ◽  
Izabela Płonka ◽  
Krzysztof Barbusiński ◽  
Magdalena Amalio-Kosel
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Advanced Oxidation Processes ◽  
Potassium Dichromate ◽  
Advanced Oxidation ◽  
Fenton’S Reagent ◽  
Nitrogen And Phosphorus ◽  
Leachate Treatment ◽  
Fenton's Reagent ◽  
Oxidation Processes

Abstract Treatment of leachate from an exploited since 2004 landfill by using two methods of advanced oxidation processes was performed. Fenton’s reagent with two different doses of hydrogen peroxide and iron and UV/H2O2 process was applied. The removal efficiency of biochemically oxidizable organic compounds (BOD5), chemically oxidizable compounds using potassium dichromate (CODCr) and nutrient (nitrogen and phosphorus) was examined. Studies have shown that the greatest degree of organic compounds removal expressed as a BOD5 index and CODCr index were obtained when Fenton’s reagent with greater dose of hydrogen peroxide was used - efficiency was respectively 72.0% and 69.8%. Moreover, in this case there was observed an increase in the value of ratio of BOD5/CODCr in treated leachate in comparison with raw leachate. Application of Fenton’s reagent for leachate treatment also allowed for more effective removal of nutrients in comparison with the UV/H2O2 process.

Degradation of the fluoroquinolone enrofloxacin by electrochemical advanced oxidation processes based on hydrogen peroxide electrogeneration

2010 ◽  
Vol 55 (6) ◽  
pp. 2101-2115 ◽  
Author(s):  
Elena Guinea ◽  
José Antonio Garrido ◽  
Rosa María Rodríguez ◽  
Pere-Lluís Cabot ◽  
Conchita Arias ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Electrochemical Advanced Oxidation Processes

scholarly journals The removal of organic compounds from landfill leachate using ozone-based advanced oxidation processes

2018 ◽  
Vol 45 ◽  
pp. 00046
Author(s):  
Jacek Leszczyński ◽  
Jolanta Walery Maria
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Removal Efficiency ◽  
Landfill Leachate ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Uv Absorbance ◽  
Leachate Treatment ◽  
Oxidation Processes ◽  
Ozone Dose

In this study, the application of ozonation and ozonation with hydrogen peroxide processes for landfill leachate treatment was investigated. The effluents were characterized by COD 710 mgO2/dm3 and BOD5 72 mg O2/dm3. According to the adopted indicators, the determined BOD/COD ratio of 0.1 in raw leachates indicates a stabilized landfill. Ozone was applied at doses of 0.15 - 0.6 gO3/dm3, and hydrogen peroxide at such doses to keep the weight ratios of H2O2/O3 0.4 - 1.6. The maximum COD and UV absorbance removal was respectively 29% and 51% by applying a high ozone dose of 0.6 gO3/dm3. After oxidation, the ratio of BOD/COD was increased from 0.1 up to 0.3. It has been shown that by using hydrogen peroxide in ozonation, organic compounds expressed as COD can be efficiently removed from the effluents. The best conditions for the H2O2/O3 process were obtained with a H2O2/O3 ratio of 0.8 and ozone dose of 0.6 gO3/dm3. Under these conditions, the removal efficiency of COD was 46%.

Sign in / Sign up

Export Citation Format

Share Document