Transport characteristics of gas phase ozone in unsaturated porous media for in-situ chemical oxidation

Choi, Heechul; Lim, Hyung Nam; Kim, Jeongkon; Hwang, Tae Moon; Kang, Joon Wun

doi:10.1016/s0169-7722(01)00219-4

Cited by 82 publications

(37 citation statements)

References 12 publications

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“…7. OZONOLYSIS generated during the solubilization, from the mobile phase to the water-immobile phase; and (3) the reaction between ozone and reactive species with biomass [53,57,58].…”

Section: Effect Of Moisture Contentmentioning

confidence: 99%

Ozonolysis

Travaini

Marangon-Jardim

Colodette

et al. 2015

Pretreatment of Biomass

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“…7. OZONOLYSIS generated during the solubilization, from the mobile phase to the water-immobile phase; and (3) the reaction between ozone and reactive species with biomass [53,57,58].…”

Section: Effect Of Moisture Contentmentioning

confidence: 99%

Ozonolysis

Travaini

Marangon-Jardim

Colodette

et al. 2015

Pretreatment of Biomass

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“…mediates, such as OH • radical, a powerful, effective, nonselective oxidizing agent [17]. It has been reported that in the absence of moisture, OH • radical would be produced by catalytic reaction of ozone with the reactive site on the sand [11,18,19]. When the oxidation is carried out via OH • radical reactions, the destruction of PAHs will be enhanced.…”

Section: Effect Of Anthracene Content In Sandmentioning

confidence: 99%

“…The pore water blocks the reactive sites of the sand, thus reducing catalytic reactions with ozone [18]. Although dissolved ozone in pore water may undergo similar reactions, the reaction rate is much faster in the gas phase than in the aqueous phase [11,18]. Therefore, the oxidation efficiency drops to some extent.…”

Section: Effect Of Moisture Contentmentioning

confidence: 99%

In situ ozonation of anthracene in unsaturated porous media

Zhang

et al. 2005

Journal of Hazardous Materials

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“…(Choi et al, 2002;Li et al, 2015). Therefore, at the beginning of pretreatment, virtually no ozone exists in the water reaction face, being all the ozone in the free water.…”

Section: Effect Of Moisture Contentmentioning

confidence: 99%

Ozonolysis: An advantageous pretreatment for lignocellulosic biomass revisited

Travaini

Martín-Juárez

Lorenzo-Hernando

et al. 2016

Bioresource Technology

222

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Ozonolysis, as a lignocellulosic biomass pretreatment, goes back to 80s; however, in the last years it is becoming widespread again owing to its efficiency and mild operation conditions. Ozone reacts preferably with lignin than carbohydrates, promoting biomass destructuration and delignification, and so the sugar release by enzymatic hydrolysis.The hydrolysate from pretreated biomass has being used as sugars source for secondgeneration fuels production, mainly ethanol, methane and hydrogen. Short-chain carboxylic acids are the main inhibitory compounds generated, being properly removed by water washing. The most common inhibitory compounds reported for other pretreatments, furfural and HMF (5-hydroxymethylfurfural) † , are not found in ozonepretreated hydrolysates. Composition of pretreated biomass and ozone consumption depends on several process parameters: reactor design, moisture content, particle size, pH, reaction time, ozone/air flow and ozone concentration. Additional studies are necessary to clarify process parameters effect and to optimize the process to achieve high yields with economic feasibility.

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Transport characteristics of gas phase ozone in unsaturated porous media for in-situ chemical oxidation

Cited by 82 publications

References 12 publications

Ozonolysis

Ozonolysis

In situ ozonation of anthracene in unsaturated porous media

Ozonolysis: An advantageous pretreatment for lignocellulosic biomass revisited

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