Influence of the dissolved oxygen under pressure to electrochemical oxidation toluene and acetone aqueous mixtures

Исаев, А. Б.; Aliev, Z. M.; Alieva, D.S.

doi:10.1016/j.elecom.2007.01.056

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…They reported that the oxidation of toluene and acetone by electrolysis under oxygen pressure was accelerated due to the generation of active particles of the ions O 2 - and HO 2 - , and radicals including HO 2 ° and HO°. They also showed that increasing the oxygen pressure increased the efficiency of the overall process [ 20 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of under pressure dissolved oxygen on trichloroethylene degradation by the H2O2/TiO2 process

Hoseini

Nabizadeh

Nazmara

et al. 2013

J Environ Health Sci Engineer

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BackgroundThe widespread use of trichloroethylene (TCE) and its frequent release into the environment has caused many environmental and health problems. In this study the degradation of TCE at different micromolar concentrations was investigated in a stainless steel reactor with various concentrations of H2O2 and TiO2 at different oxygen pressures and three different pHs.MethodsTo examine the synergistic effect of under pressure oxygen on TCE degradation, the concentrations of H2O2 and TiO2 as well as pH were first optimized, and then the experiments were performed under optimal conditions. Gas chromatography with a flame ionization detector (FID) was used to measure TCE concentrations.ResultsResults showed that the percentage of TCE degradation without pressurized oxygen was low and it increased with increasing pressure of oxygen at all initial concentrations of TCE. The degradation percentages without oxygen pressure were 48.27%, 51.22%, 58.13% and 64.33% for TCE concentrations of 3000, 1500, 300 and 150 μg/L respectively. At an oxygen pressure of 2.5 atmospheres (atm) the percent degradation of TCE reached 84.85%, 89.14%, 93.13% and 94.99% respectively for the aforementioned TCE concentrations.ConclusionsThe results of this study show that the application of dissolved oxygen under pressure increases the efficiency of the H2O2/TiO2 process on the degradation of TCE and can be used along with other oxidants as an effective method for the removal of this compound from aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Influence of under pressure dissolved oxygen on trichloroethylene degradation by the H2O2/TiO2 process

Hoseini

Nabizadeh

Nazmara

et al. 2013

J Environ Health Sci Engineer

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“…1) in which a 200-ml luoroplastic vessel with two electrodes was placed [13]. A solution containing various concentrations of CB azo dye was poured into the vessel.…”

Section: Methodsmentioning

confidence: 99%

Effect of oxygen pressure on the electrochemical oxidation of Chrome Brown azo dye

Исаев

Aliev

2012

Russ J Appl Chem

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“…The effect of the pressure on the electrochemical treatment of wastewater contaminated by organics was not often investigated in the literature. In particular, Isae and coauthors have shown that the use of pressurized oxygen allows to increase the oxidation of toluene and acetone in water [30] by favoring the cathodic conversion of oxygen to various oxidants. Moreover, more recently, various groups have shown that the use of pressured air or oxygen can improve drastically the performances of electro‐Fenton process [8,31] .…”

Section: Introductionmentioning

confidence: 99%

Removal of Phenol from Water in the Presence of NaCl in Undivided Cells Equipped with Carbon Felt or Ni Cathodes: Effect of Air Pressure

Hao

Proietto

et al. 2022

ChemElectroChem

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Recently, the electrochemical treatment of wastewater polluted by recalcitrant organics and containing chlorides was shown to be significantly improved adopting proper operative conditions such as suitable anodes and cathodes and low current density. In particular, the use of suitable cathodes such as carbon felt or silver could increase the removal of TOC and reduce the formation of chlorinated by-products. In this study, attention was focused on the utilization of carbon felt cathodes with the main aim to evaluate the effect of air pressure on the process using phenol as model organic pollutant. It was shown that, in the presence of carbon felt cathode, the use of pressurized air allows both to increase the removal of TOC and to reduce the formation of chlorate. Moreover, the effect of the nature of the anode and of the presence of FeSO 4 , in order to study the involvement of electro-Fenton process, was evaluated.

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Influence of the dissolved oxygen under pressure to electrochemical oxidation toluene and acetone aqueous mixtures

Cited by 4 publications

References 19 publications

Influence of under pressure dissolved oxygen on trichloroethylene degradation by the H2O2/TiO2 process

Influence of under pressure dissolved oxygen on trichloroethylene degradation by the H2O2/TiO2 process

Effect of oxygen pressure on the electrochemical oxidation of Chrome Brown azo dye

Removal of Phenol from Water in the Presence of NaCl in Undivided Cells Equipped with Carbon Felt or Ni Cathodes: Effect of Air Pressure

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