Depth dependence of p-nitrophenol removal in soil by pulsed discharge plasma

Wang, Tie Cheng; Qu, Guangzhou; Li, Jie; Liang, Dong; Hu, Shibin

doi:10.1016/j.cej.2013.11.015

Cited by 40 publications

(12 citation statements)

References 33 publications

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“…It is thus evident that the rate of the NAPL removal efficiency decreases non-linearly with the soil thickness. This result reveals that the reaction rate of the active species decreases as the soil depth increases, in agreement with recently published results concerning p-nitrophenol (PNP) degradation by means of pulsed discharge in different soil depths [31]. The NAPL removal efficiency as a function of the energy density is shown in Fig.…”

Section: Effect Of the Soil Thickness On The Napl Remediation Efficiencysupporting

confidence: 88%

“…3 for a soil sample 4.0 mm thick (7.5 g) and an initial concentration of each NAPL compound equal to 33.3 g/kg-soil. For all compounds of the NAPL, the removal efficiency was increased with the treatment time; however, the removal rate becomes gradually slower in agreement with recently published results [30,31,34]. Taking n-C 16 as an example, at shorter treatment times, the active species reacted highly with the NAPL molecules contained in soil pores, the reaction was fast, and thus a high NAPL removal efficiency ($80%) was achieved within 60 s of plasma treatment.…”

Section: Effect Of the Treatment Time On The Napl Remediationsupporting

confidence: 88%

“…3). Another factor limiting the reaction rate was the generation of intermediates during the NAPL removal, considering that the produced intermediates compete with the pollutant molecules for reactions with the active plasma species [31].…”

Section: Effect Of the Treatment Time On The Napl Remediationmentioning

confidence: 99%

“…In these few studies, emphasis was placed on the removal of solid pollutants from soils by corona [28][29][30][31] or dielectric barrier discharge (DBD) [32,33], while only a little attention has been paid on the NAPL removal [34,35].…”

Section: Introductionmentioning

confidence: 99%

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Dielectric barrier discharge plasma used as a means for the remediation of soils contaminated by non-aqueous phase liquids

Aggelopoulos

Svarnas

Klapa

et al. 2015

Chemical Engineering Journal

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Section: Effect Of the Soil Thickness On The Napl Remediation Efficiencysupporting

confidence: 88%

Section: Effect Of the Treatment Time On The Napl Remediationsupporting

confidence: 88%

Section: Effect Of the Treatment Time On The Napl Remediationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dielectric barrier discharge plasma used as a means for the remediation of soils contaminated by non-aqueous phase liquids

Aggelopoulos

Svarnas

Klapa

et al. 2015

Chemical Engineering Journal

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“…The effects of plasmas are moisture and soil material dependent. The latter might be due to the different diffusion behavior of the active species . Moisture and natural organic matter influence the overall chemistry and the concentration of reactive species needed for oxidizing reaction of the contaminants.…”

Section: Plasma Technology For and In Agriculturementioning

confidence: 99%

White paper on the future of plasma science in environment, for gas conversion and agriculture

Brandenburg

Bogaerts

Bongers

et al. 2018

Plasma Processes & Polymers

134

103

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Climate change, environmental pollution control, and resource utilization efficiency, as well as food security, sustainable agriculture, and water supply are among the main challenges facing society today. Expertise across different academic fields, technologies, and disciplines is needed to generate new ideas to meet these challenges. This “white paper” aims to provide a written summary by describing the main aspects and possibilities of the technology. It shows that plasma science and technology can make significant contributions to address the mentioned issues. The paper also addresses to people in the scientific community (inside and outside plasma science) to give inspiration for further work in these fields.

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Remediation Efficiency and Influencing Factors of PAHs‐Contaminated Soil by a Dielectric Barrier Discharge Reactor: DBD System Parameters, Soil Characteristics, and Microbial Properties

Ma,

Gao,

et al. 2024

Plasma Processes & Polymers

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The efficiency and influencing factors during PAH‐polluted soil remediation by dielectric barrier discharge (DBD) low‐temperature plasma technology are investigated in this study. Gas chromatography, microbial community structure analysis, and response surface analysis were used to optimize suitable remediation processing factors. The degradation rates of phenanthrene and benzo[a]pyrene reached 94.37% and 86.53%, respectively, at an initial concentration of 100.00 mg/kg, whereas optimal parameters for the system were identified as 130 V for voltage, 160 Hz for frequency, 0.60 L/min for gas flow rate, and 40 min for discharge time. Comprehensively, DBD plasma is an efficient, low‐energy, and sustainable remediation technology according to the energy consumption calculation and comparison with the relevant literature.

show abstract

Depth dependence of p-nitrophenol removal in soil by pulsed discharge plasma

Cited by 40 publications

References 33 publications

Dielectric barrier discharge plasma used as a means for the remediation of soils contaminated by non-aqueous phase liquids

Dielectric barrier discharge plasma used as a means for the remediation of soils contaminated by non-aqueous phase liquids

White paper on the future of plasma science in environment, for gas conversion and agriculture

Remediation Efficiency and Influencing Factors of PAHs‐Contaminated Soil by a Dielectric Barrier Discharge Reactor: DBD System Parameters, Soil Characteristics, and Microbial Properties

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