Ozone Solubility in Water

Egorova, G. V.; Voblikova, V. A.; Sabitova, L.V.; Ткаченко, И. С.; Ткаченко, С. Н.; Лунин, В. В.

doi:10.3103/s0027131415050053

Cited by 38 publications

(22 citation statements)

References 17 publications

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“…A similar result was reported by Egorova et al [14] who passed a mixture of oxygen and ozone through water in a bubble reactor at 20C. They reported after 10 minutes of bubbling, that concentration of ozone remained constant.…”

Section: Influence Of Time On the Concentration Of Dissolved Ozonesupporting

confidence: 73%

“…They reported after 10 minutes of bubbling, that concentration of ozone remained constant. The time needed to reach the saturation concentration in this work is much longer than that needed by Egorova et al [14]. It is possibly because this work used air to be fed to the ozone generator, while Egorova et al [14] utilized oxygen.…”

Section: Influence Of Time On the Concentration Of Dissolved Ozonementioning

confidence: 61%

“…The time needed to reach the saturation concentration in this work is much longer than that needed by Egorova et al [14]. It is possibly because this work used air to be fed to the ozone generator, while Egorova et al [14] utilized oxygen. The concentration of ozone in the gas phase in this work must be lower, so it took a longer time to reach the saturation concentration.…”

Section: Influence Of Time On the Concentration Of Dissolved Ozonementioning

confidence: 61%

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Mass Transfer Coefficient of Ozone in a Bubble Column

et al. 2018

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Abstract. The effect of flow rate of ozone-containing gas and pH on the mass transfer coefficient of ozone through water in a bubble column reactor has been studied. Ozone was generated from air using a corona discharge ozone generator. The flow rate of air was varied from 2 to 5 L min -1 , while pH was varied from 4 to 10. The gas containing ozone was bubbled to the reactor containing 1.5 L of 2% KI solution. The temperature was set at 281C. The concentration of ozone was determined using titrimetric method every 5 minutes. The results show that the concentration of ozone increases with time, and it reaches a steady-state concentration after 30 minutes of ozonation. The gas flow rate and pH apparently affect both the concentration and the kLa. The highest kLa of 2.1 10 -2 s -1 is obtained at pH 4 with a gas flow rate of 4 L min -1 .

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Section: Influence Of Time On the Concentration Of Dissolved Ozonesupporting

confidence: 73%

Section: Influence Of Time On the Concentration Of Dissolved Ozonementioning

confidence: 61%

Section: Influence Of Time On the Concentration Of Dissolved Ozonementioning

confidence: 61%

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Mass Transfer Coefficient of Ozone in a Bubble Column

et al. 2018

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“…In the water vapor removal process, a sample gas with high polarity and solubility might react with or be absorbed by the condensed liquid water [12]. In particular, analytes with high solubility and large dipole moments were influenced by water vapor, with the scale of influence depending on the measurement method [4,8,20,21,22,23,24]. Since an exact water removal process has not yet been specified, a clear and specific method is necessary.…”

Section: Introductionmentioning

confidence: 99%

Effects of Water Removal Devices on Ambient Inorganic Air Pollutant Measurements

Kim

Dinh

Lee

et al. 2019

IJERPH

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Water vapor is a pivotal obstacle when measuring ambient air pollutants. The effects of water vapor removal devices which are called KPASS (Key-compound PASSer) and Cooler. On the measurement of O3, SO2, and CO at ambient levels were investigated. Concentrations of O3, SO2, and CO were 100 ppb, 150 ppb, and 25 ppm, respectively. The amount of water vapor varied at different relative humidity levels of 30%, 50%, and 80% when the temperature was 25 °C and the pressure was 1 atm. Water vapor removal efficiencies and recovery rates of target gases were also determined. The KPASS showed a better performance than the Cooler device, removing 93.6% of water vapor and the Cooler removing 59.2%. In terms of recovery, the KPASS showed a better recovery of target gases than the Cooler. Consequently, it is suggested that the KPASS should be an alternative way to remove water vapor when measuring O3, SO2, and CO.

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“…It is to be noted here that the Henry's law constant remains almost uniform for the pH value range of 2−6, and that the solubility of O 3 in water decreases considerably above pH 7. [ 70 ] It is seen from Figure 11 that pH values for different experimental conditions range from 2.85 to 5.25; hence, the solubility of O 3 should not be affected by these variations of the pH.

{OH}_{(aq)} + {OH}_{(aq)} \to H_{2} O_{2 (aq)},

H_{2} O_{(aq)} + {OH}_{(aq)} \to H_{2} O_{2 (aq)} + H_{((aq)),}

H_{2} O_{2 (aq)} + {OH}_{(aq)} \to {HO}_{2 (aq)} + H_{2} O_{aq},

H_{(aq)} + normalH O_{2 (aq)} \to H_{2} O_{2 (aq),}

H_{2} O_{(aq)} + O_{(aq)} \to H_{2} O_{2 ((aq)),}

H_{2} O_{(aq)} + O_{3 (aq)} <...>

…”

Section: Resultsmentioning

confidence: 99%

NO_x synthesis by atmospheric‐pressure N₂/O₂ filamentary DBD plasma over water: Physicochemical mechanisms of plasma–liquid interactions

Roy

Pattyn

Rémy

et al. 2020

Plasma Processes & Polymers

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In this study, an atmospheric‐pressure filamentary dielectric barrier discharge plasma is produced over a deionized (DI) water surface to study the physicochemical mechanisms of plasma–liquid surface interactions for NOx synthesis. The gas‐phase plasma diagnostics are performed using optical emission spectroscopy, Fourier‐transform infrared spectroscopy, and by recording voltage–current curves, and liquid‐phase species are analyzed using ion chromatography and UV−visible spectrophotometer. The investigations indicate that the reaction pathways for reactive oxygen and nitrogen species (H2O2, NO 2 ‐, normalN O 3 −) formation in DI water depend on different experimental conditions. It is observed that the conversion of nitrites into nitrates is significantly influenced by reactive oxygen species. The energy yield for the total amount of NOx synthesized ranges from 1.3 × 10−4 to 3.4 × 10−3 mol/MJ.

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Ozone Solubility in Water

Cited by 38 publications

References 17 publications

Mass Transfer Coefficient of Ozone in a Bubble Column

Mass Transfer Coefficient of Ozone in a Bubble Column

Effects of Water Removal Devices on Ambient Inorganic Air Pollutant Measurements

NO_x synthesis by atmospheric‐pressure N₂/O₂ filamentary DBD plasma over water: Physicochemical mechanisms of plasma–liquid interactions

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Ozone Solubility in Water

Cited by 38 publications

References 17 publications

Mass Transfer Coefficient of Ozone in a Bubble Column

Mass Transfer Coefficient of Ozone in a Bubble Column

Effects of Water Removal Devices on Ambient Inorganic Air Pollutant Measurements

NOx synthesis by atmospheric‐pressure N2/O2 filamentary DBD plasma over water: Physicochemical mechanisms of plasma–liquid interactions

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NO_x synthesis by atmospheric‐pressure N₂/O₂ filamentary DBD plasma over water: Physicochemical mechanisms of plasma–liquid interactions