Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Dojčinović, Biljana; Roglić, Goran; Obradović, Bratislav M.; Kuraica, M. M.; Kostić, Mirjana; Nešić, Jelena; Manojlović, Dragan

doi:10.1016/j.jhazmat.2011.05.086

Cited by 174 publications

(76 citation statements)

References 47 publications

(56 reference statements)

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“…The removal efficiencies increased to 75% and 80% for boscalid and imidacloprid respectively, at 80 kV for 5 min of plasma treatment. Similar results were observed for the degradation of pesticides in water and on strawberries (N. Misra, S. K. Pankaj, et al, 2014;Sarangapani, Misra, et al, 2016) (Dojčinović, et al, 2011) which undergo several chain reactions to form metastables including ozone and hydrogen peroxide which have been identified as key species in the degradation of pesticides (N. N. Misra, Keener, Bourke, & Cullen, 2015;N.N. Misra, Ziuzina, Cullen, & Keener, 2013;Moiseev, et al, 2014;Sarangapani, Misra, et al, 2016).…”

Section: Quantification Of Pesticide Degradationsupporting

confidence: 68%

Atmospheric cold plasma dissipation efficiency of agrochemicals on blueberries

Sarangapani¹,

O'Toole²,

Cullen

et al. 2017

Innovative Food Science & Emerging Technologies

223

120

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Section: Quantification Of Pesticide Degradationsupporting

confidence: 68%

Atmospheric cold plasma dissipation efficiency of agrochemicals on blueberries

Sarangapani¹,

O'Toole²,

Cullen

et al. 2017

Innovative Food Science & Emerging Technologies

223

120

View full text Add to dashboard Cite

“…+ , N + , and O + [46]. The increase in measured ozone concentrations at the higher voltages and the generation of higher amounts of other reactive species explain the kinetics of degradation which attack the functional groups of the the target pesticides [1].…”

Section: Quantification Of Pesticide Residues and Degradation Kineticsmentioning

confidence: 97%

“…A stable discharge was found at the high voltages employed at the large discharge gap of 2.2 cm. As a charge trapping agent the dielectric limited the charge transported in the discharge and prevented arcing [46]. Further details regarding the electrical characteristics of the discharge using capacitance-voltage calculations can be found in a previous publication [47].…”

Section: Current-voltage Characteristic Of Plasma Sourcementioning

confidence: 99%

Pesticide degradation in water using atmospheric air cold plasma

Sarangapani¹,

Misra²,

Milosavljević³

et al. 2016

Journal of Water Process Engineering

190

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a b s t r a c tA high voltage dielectric barrier discharge plasma reactor using atmospheric air as the inducer gas was studied for the degradation of pesticides (dichlorvos, malathion, endosulfan) in water. The degradation kinetics of the pesticides were studied using GC-MS as a function of plasma control parameters. Electrical characterisation of the plasma revealed that the plasma discharge consisted of filamentary streamers. Excited nitrogen, reactive oxygen species and OH radicals generated in the dielectric barrier discharge (DBD) plasma reactor were identified using optical emission spectroscopy. Ozone, used as an indicator for metastable oxygen species, was quantified within the reactor at concentrations of 1600, 2200, 2800 ppm after 8 min of plasma treatment for applied voltages of 60, 70, and 80 kV respectively. The degradation efficacy of pesticides after 80 kV and 8 min of plasma treatment were found to be 78.98 ± 0.81% for dichlorvos, 69.62 ± 0.14% for malathion and 57.71 ± 0.58% for endosulfan. Degradation was found to follow first order kinetics. GC-MS analyses showed that the degraded compounds and intermediates formed were less toxic than the parent pesticide. A proposed mechanism of degradation of these pesticides is suggested.

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“…The use of very high voltages favours generation of stable nonthermal plasma discharge even at wider gaps of 4 cm. The dielectric material acts as a charge trapping agent [26], thereby limiting the charge transported and preventing the transition to an arc regime [27]. Further details regarding electrical characteristics of the discharge using capacitance-voltage Lissajous patterns can be found in a recent publication by our group [13].…”

Section: Figure 2 the Current-voltage Characteristics Of The Dischargmentioning

confidence: 99%

In-package nonthermal plasma degradation of pesticides on fresh produce

Misra¹,

Pankaj²,

Walsh

et al. 2014

Journal of Hazardous Materials

134

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Keywords: nonthermal plasma, dielectric barrier discharge, pesticide, GC-MS/MS AbstractIn-package nonthermal plasma (NTP) technology is a novel technology for the decontamination of foods and biological materials. This study presents the first report on the potential of the technology for the degradation of pesticide residues. A cocktail of pesticides, namely Azoxystrobin, Cyprodinil, Fludioxonil and Pyriproxyfen was tested on strawberries. The concentrations of these pesticides were monitored in priori and post-plasma treatment using GC-MS/MS. An applied voltage and time dependent degradation of the pesticides was observed for treatment voltages of 60, 70 and 80 kV and treatment durations ranging from 1 to 5 min, followed by 24 h in-pack storage. The electrical characterisation revealed the operation of the discharge in a stable filamentary regime. The discharge was found to generate reactive oxygen and excited nitrogen species as observed by optical emission spectroscopy.

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Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

Cited by 174 publications

References 47 publications

Atmospheric cold plasma dissipation efficiency of agrochemicals on blueberries

Atmospheric cold plasma dissipation efficiency of agrochemicals on blueberries

Pesticide degradation in water using atmospheric air cold plasma

In-package nonthermal plasma degradation of pesticides on fresh produce

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