scholarly journals Generation and Transportation Mechanisms of Chemically Active Species by Dielectric Barrier Discharge in a Tube for Catheter Sterilization

2008 ◽  
Vol 5 (6) ◽  
pp. 606-614 ◽  
Author(s):  
Takehiko Sato ◽  
Osamu Furuya ◽  
Kei Ikeda ◽  
Tatsuyuki Nakatani
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Active Species ◽  
Dielectric Barrier

Monitoring active species in an atmospheric pressure dielectric-barrier discharge: Observation of the Herman-infrared system

2017 ◽  
Vol 57 (2) ◽  
pp. 67-75 ◽  
Author(s):  
Adriana Annušová ◽  
Peter Čermák ◽  
Jozef Rakovský ◽  
Viktor Martišovitš ◽  
Pavel Veis
Keyword(s):  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Barrier Discharge ◽  
Active Species ◽  
Dielectric Barrier

scholarly journals A Study of the Performance of Dielectric Barrier Discharge under Different Conditions for Nitrobenzene Degradation

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 842 ◽  
Author(s):  
Muhammad Imran Nawaz ◽  
Chengwu Yi ◽  
Prince Junior Asilevi ◽  
Tingting Geng ◽  
Muhammad Aleem ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Gas Flow ◽  
Advanced Oxidation Processes ◽  
Barrier Discharge ◽  
Input Power ◽  
Active Species ◽  
Degradation Efficiency ◽  
Energy Yield ◽  
Dielectric Barrier ◽  
Enormous Amount

Water scarcity and water contamination due to the extensive use of organic compounds in industries trigger us to adopt modern techniques for wastewater treatment. In this research, we developed a new dielectric barrier discharge (DBD) system which was evaluated for the degradation of nitrobenzene in water under different experimental arrangements. DBD produces an enormous amount of active species like O3, •O, O2+ and O2− and •OH to degrade the pollutants. In this study, NB (Nitrobenzene) was treated from wastewater by changing the gas flow rate, adopting different carrier gas, by adding inhibitors and promoters and the effect of applied voltage on the production of active species to check the effectiveness of the DBD system. The DBD system was evaluated based on input power, degradation efficiency and energy yield compared with other advanced oxidation processes. The energy yield of the DBD system was 1.253 mg/kWh for the degradation of 20 mg/L of NB to 75% in 60 min with the discharge power of 0.538 W, which displays better results in comparison with the other AOPs regarding energy yield and the degradation efficiency of the pollutant. The results illustrate the significance of the system and further suggest its application to industrial-scale treatment.

scholarly journals Degradation of Methylene Blue via Dielectric Barrier Discharge Plasma Treatment

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1818 ◽  
Author(s):  
Lihang Wu ◽  
Qinglong Xie ◽  
Yongbo Lv ◽  
Zhenyu Wu ◽  
Xiaojiang Liang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
Chemical Oxidation ◽  
Active Species ◽  
Initial Solution ◽  
Energy Yield ◽  
Dbd Plasma ◽  
Dielectric Barrier

The degradation of methylene blue (MB) using an upgraded dielectric barrier discharge (DBD) plasma reactor was investigated in this paper. Air plasma was generated in the glass bead packed bed in the reactor, which was propagated into MB solution through a microporous diffuser plate. Microdischarge phenomenon can be observed on the interface of MB solution and the diffuser plate, where plasma active species were generated. The effects of air flow rate, initial solution concentration, initial solution pH, and initial solution conductivity on MB degradation were examined. Experimental results indicated that the proposed plasma reactor was effective for MB degradation. No obvious change in MB degradation efficiency was obtained for solution with various initial pH and conductivities, which suggested the potential of the reactor in actual wastewater treatment. The possible mechanism of the generation of plasma active species for MB degradation was proposed. In addition, the total organic carbon removal and chemical oxidation demand removal after 30 min treatment were 38.5% and 48.3%, which was higher than that obtained by ozone. The energy yield for MB degradation reached up to 9.3 g/kWh. Finally, a possible degradation pathway of MB solution was proposed.

Sign in / Sign up

Export Citation Format

Share Document