The reaction of OH radicals with dimethyl sulfoxide. A comparative study of Fenton's reagent and the radiolysis of aqueous dimethyl sulfoxide solutions

1988 ◽  
Vol 53 (5) ◽  
pp. 1071-1074 ◽  
Author(s):  
Manfred K. Eberhardt ◽  
Ramon Colina
Keyword(s):  
Comparative Study ◽  
Dimethyl Sulfoxide ◽  
Oh Radicals ◽  
Fenton’S Reagent ◽  
Fenton's Reagent

scholarly journals Biogas production in the methane fermentation of excess sludge oxidized with Fenton’s reagent

2019 ◽  
Vol 116 ◽  
pp. 00104
Author(s):  
Iwona Zawieja ◽  
Kinga Brzeska
Keyword(s):  
Fermentation Process ◽  
Biogas Production ◽  
Process Conditions ◽  
Oh Radicals ◽  
Fenton’S Reagent ◽  
Iron Ions ◽  
Fenton Reagent ◽  
Excess Sludge ◽  
Methane Fermentation ◽  
Fenton's Reagent

The advanced oxidation processes (AOPs) play an important role in the degradation of hardly decomposable organic pollutants. AOPs methods rely on the production of highly reactive hydroxyl OH• radicals. The aim of the conducted research was to intensify biogas production in the methane fermentation process of excess sludge subjected to the process of deep oxidation with Fenton's reagent. In the process of oxidation of sewage sludge with the Fenton reagent, doses of iron ions in the range 0.02–0.14 g Fe2+/g TS (total solids) were used Hydrogen peroxide was measured in the proportions 1: 1–1:10 in relation to the mass of iron ions. The basic substrate of the study was excess sludge. In the case of excess sludge oxidation with the use of Fenton's reagent, the most favorable process conditions were considered to be the dose of iron ions 0.08 g Fe2+/g d.m. and a Fe2+: H2O2 ratio of 1:5. As a result of subjecting the excess sludge to disintegration with the Fenton reagent in the above-mentioned dose, with respect to the fermentation process of unprocessed sludge, about two-fold increase in the digestion degree of excess sludge and about 35% increase of the biogas yield was obtained.

Degradation of trace contaminants using coupled sonochemistry and Fenton's reagent

2003 ◽  
Vol 47 (10) ◽  
pp. 85-92 ◽  
Author(s):  
Y. Jiang ◽  
T.D. Waite
Keyword(s):  
Reaction Temperature ◽  
Aqueous Media ◽  
Operating Conditions ◽  
Oh Radicals ◽  
Fenton’S Reagent ◽  
Pseudo First Order Reaction ◽  
Optimal Operating ◽  
Fenton's Reagent ◽  
First Order ◽  
Phenol Decomposition

The degradations of phenol in air-equilibrated aqueous media were investigated using coupled sonochemistry and Fenton's reagent for a variety of operating conditions. The decomposition yields of phenol (100-500 mM) were substantially enhanced due to the addition of Fenton's reagent (FeSO4) into the solutions irradiated at 608 kHz with 30 W and with reaction temperature 25 ± 1°C. The decomposition process follows a pseudo-first-order reaction kinetics with respect to phenol concentration, and the rate constant of phenol disappearance observed increases by approximately 2-3 fold when FeSO4 concentration was between 400 and 1000 M at pH = 3.5 ± 0.2 (controlled by phosphate buffer) as a result of Fe(II) reaction with H2O2 enabling further production of additional OH• radicals. The results obtained here also indicate that the decomposition rate of aqueous phenol using coupled ultrasound and Fenton's reagent was strongly dependant on the initial concentration of reactant, the amount of Fe(II) added as well as the pH of solution. The optimal operating conditions for 100-500 mM phenol decomposition in the air-equilibrated aqueous media were obtained when FeSO4 concentration was between 400 and 1,000 mM with pH in the range 3.5-4.2 under ultrasonic irradiation at 608 kHz, 30 W and reaction temperature 25 ± 1°C.

Comparative study of Fenton’s reagent performance in disinfection of raw wastewater and activated sludge effluent

2012 ◽  
Vol 37 (1-3) ◽  
pp. 108-113 ◽  
Author(s):  
Nabizadeh Ramin ◽  
Alimohammadi Mahmood ◽  
Aslani Hasan ◽  
Mesdaghinia Alireza ◽  
Naddafi Kazem ◽  
...  
Keyword(s):  
Comparative Study ◽  
Activated Sludge ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Raw Wastewater

Use of Fenton's Reagent for the Degradation of TCE in Aqueous Systems and Soil Slurries

2000 ◽  
Vol 9 (4) ◽  
pp. 331-345 ◽  
Author(s):  
Katherine R. Weeks ◽  
Clifford J. Bruell ◽  
Nihar R. Mohanty
Keyword(s):  
Fenton’S Reagent ◽  
Aqueous Systems ◽  
Fenton's Reagent

The action of fenton's reagent on carbohydrates

Tetrahedron ◽  
1963 ◽  
Vol 19 (11) ◽  
pp. 1705-1710 ◽  
Author(s):  
G.J. Moody
Keyword(s):  
Fenton’S Reagent ◽  
Fenton's Reagent

Additions and Corrections - Oxidation of Mandelic Acid by Fenton's Reagent

1982 ◽  
Vol 104 (13) ◽  
pp. 3783-3783
Author(s):  
Cheves Walling ◽  
Kalyani Amarnath ◽  
Curt Campbell
Keyword(s):  
Mandelic Acid ◽  
Fenton’S Reagent ◽  
Fenton's Reagent
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