Recent progress on application of UV excilamps for degradation of organic pollutants and microbial inactivation

Matafonova, Galina; Batoev, Valeriy

doi:10.1016/j.chemosphere.2012.06.012

Cited by 84 publications

(32 citation statements)

References 67 publications

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“…They have been presented as an alternative to conventional mercury lamps due to some advantages such as lack of mercury, long lifetime and narrow emission band. It has been described [17] that they are especially effective to treat organic pollutants, because their emission bands match the dissociation energies of the main organic compounds bonds. They have been employed to remove phenolic compounds and dyes with different kind of lamps (KrCl, XeBr and Cl 2 ) and reactors (batch and flow-through reactors) [18][19][20][21][22][23][24][25][26][27], obtaining the best results with the KrCl excilamp in the flow-through reactor.…”

Section: Introductionmentioning

confidence: 99%

Development of a kinetic model for the UV/H2O2 photodegradation of 2,4-dichlorophenoxiacetic acid

Murcia¹,

Vershinin²,

Briantceva³

et al. 2015

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Development of a kinetic model for the UV/H2O2 photodegradation of 2,4-dichlorophenoxiacetic acid

Murcia¹,

Vershinin²,

Briantceva³

et al. 2015

Chemical Engineering Journal

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“…Since then many DBD-based reactors and their applications have been researched and developed; nowadays, DBD reactors are still used for ozone production [2] and in a variety of applications such as lighting systems [3], medicine [4], [5], dermatology [6], and pollution treatment plants [7], [8] and operating at atmospheric or at different levels of pressure.…”

mentioning

confidence: 99%

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Florez¹,

Schitz²,

Piquet³

et al. 2018

IEEE Trans. Plasma Sci.

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract-Three different electrical generators have been designed and used to supply an exciplex dielectric barrier discharge lamp in order to elucidate the influence of each one of these supplying strategies over the system performance; the first method consists on supplying the lamp with short bipolar voltage pulses; the second and third methods are based on semiresonant converters were current pulses, of controlled duration and magnitude, are injected into the lamp. For each one of the generators, measurements of the lamp and supply efficiency, are performed and analyzed, at different levels of power (up to 130 W) and operating frequencies (60-90 kHz). From the experimental results, the pulsed voltage-mode approach has allowed obtaining the highest lamp efficiency (7%), yet the maximum supply efficiency is offered by the resonant mode supplies. On the basis of the lamp and the supply efficiencies, the whole system performance is analyzed.Index Terms-Dielectric-barrier discharge (DBD), exciplex lamp, pulsed voltage, resonant converter, ultraviolet.

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“…The absence of mercury in such lamps also gives them an advantage over the widespread but environmentally unsafe mercury lamps. Excilamps (UV ex ) were shown to be especially effective when used for degradation of organic compounds and inactivation of microorganisms . A series of comparative tests have been conducted on the degradation of phenolic compounds and dyes (Congo Red, Methyl Green) using different lamps (KrCl, XeBr, Xe 2 , and Cl 2 ) in static and flow‐through reactors.…”

Section: Introductionmentioning

confidence: 99%

“…[5] In recent years, the modern gas-discharge excimer and exciplex lamps (excilamps) based on formation-decomposition cycles of excimer and exciplex molecules driven by capacitive or dielectric barrier discharges are increasingly used as UV sources. [6,7] The main advantages of the lamps are the narrow emission band and long service life. The absence of mercury in such lamps also gives them an advantage over the widespread but environmentally unsafe mercury lamps.…”

Section: Introductionmentioning

confidence: 99%

UV‐Activated Persulfate Oxidation of Orange III Dye Using KrCl Excilamp

Sizykh

Батоева

Tsydenova

2018

CLEAN Soil Air Water

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The paper demonstrates the possibility of using UV radiation of KrCl excilamps to activate persulfate (PS) in advanced oxidation processes. The model compound—the dye Orange III—is subjected to treatments involving UV radiation, persulfate, and/or ferrous ion, alone or in combinations. According to Orange III oxidation efficiency, the tested oxidative systems can be arranged in the following order: PS/UVex/Fe2+ > PS/UVex > PS/Fe2+ > UVex > PS. Furthermore, the energy efficiencies of the oxidative systems enhanced by UV radiation from a KrCl excilamp (222 nm) and a low‐pressure mercury lamp (254 nm) are compared. The highest energy efficiency and mineralization are achieved by activating persulfate with a combination of a transition metal (Fe2+) and UV radiation of a KrCl excilamp.

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Recent progress on application of UV excilamps for degradation of organic pollutants and microbial inactivation

Cited by 84 publications

References 67 publications

Development of a kinetic model for the UV/H2O2 photodegradation of 2,4-dichlorophenoxiacetic acid

Development of a kinetic model for the UV/H2O2 photodegradation of 2,4-dichlorophenoxiacetic acid

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

UV‐Activated Persulfate Oxidation of Orange III Dye Using KrCl Excilamp

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