Formation of H2and H2O2in a Water-Spray Gliding Arc Nonthermal Plasma Reactor

2010 ◽  
Vol 49 (14) ◽  
pp. 6342-6349 ◽  
Author(s):  
R. Burlica ◽  
K.-Y. Shih ◽  
B. R. Locke
2013 ◽  
Vol 52 (37) ◽  
pp. 13516-13516 ◽  
Author(s):  
R. Burlica ◽  
K.-Y. Shih ◽  
B. R. Locke

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 194
Author(s):  
Joanna Pawłat ◽  
Piotr Terebun ◽  
Michał Kwiatkowski ◽  
Katarzyna Wolny-Koładka

Sterilization of municipal waste for a raw material for the production of refuse-derived fuel and to protect surface and ground waters against biological contamination during transfer and storage creates a lot of problems. This paper evaluates the antimicrobial potential of non-equilibrium plasma in relation to the selected groups of microorganisms found in humid waste. The proposed research is to determine whether mixed municipal waste used for the production of alternative fuels can be sterilized effectively using low-temperature plasma generated in a gliding arc discharge reactor in order to prevent water contamination and health risk for working staff. This work assesses whether plasma treatment of raw materials in several process variants effectively eliminates or reduces the number of selected groups of microorganisms living in mixed municipal waste. The presence of vegetative bacteria and endospores, mold fungi, actinobacteria Escherichia coli, and facultative pathogens, i.e., Staphylococcus spp., Salmonella spp., Shigella spp., Enterococcus faecalis and Clostridium perfringens in the tested material was microbiologically analyzed. It was found that the plasma treatment differently contributes to the elimination of various kinds of microorganisms in the analyzed raw materials. The effectiveness of sterilization depended mainly on the time of raw materials contact with low-temperature plasma. The results are very promising and require further research to optimize the proposed hygienization process.


2013 ◽  
Vol 11 (2) ◽  
pp. 311-318 ◽  
Author(s):  
J. Karuppiah ◽  
E. Linga Reddy ◽  
P. Manoj Kumar Reddy ◽  
B. Ramaraju ◽  
Ch. Subrahmanyam

Author(s):  
Henryka Danuta Stryczewska ◽  
Tomasz Jakubowski ◽  
Stanisław Kalisiak ◽  
Tomasz Giżewski ◽  
Joanna Pawłat

AbstractRecently, many different plasma sources are being investigated for exhaust gases treatment, odor abatement, VOC removal, soil conditioning, surface decontamination or tissue disinfection and sterilization. Among many different plasma reactors investigated in laboratories, gliding arc discharges (GAD), dielectric barrier discharges (DBD), pulsed discharges (PD), atmospheric pressure glow discharges (APGD) and atmospheric pressure plasma jets (APPJ) seem to be the most promising for high pressure low temperature applications. They can be designed as multi-electrodes’ high power system that can be used in environment protection processes, like decontamination of large surfaces and treatment of large volume of polluted gases, as well as small size and low power devices for biomedical applications, like plasma healing, disinfection and sterilization. Paper presents review of power supply systems for cold plasma reactors. Dielectric Barrier Discharge (DBD), Gliding Arc Discharge (GAD) and atmospheric pressure plasma jet (APPJ) reactors with their supply systems have been discussed from the point view of their characteristics, possibility to control power to the discharge and efficiency. Taking into account the plasma reactor characteristics and nature (nonlinear resistive and/or capacitive) different solutions of power suppliers have been presented: transformer type, AC/DC/AC inverter, RF-frequency system and frequency resonant inverter.


2020 ◽  
Vol 56 (6) ◽  
pp. 6978-6982
Author(s):  
Tomoyuki Kuroki ◽  
Shunto Nomura ◽  
Haruhiko Yamasaki ◽  
Masaaki Okubo

2020 ◽  
Vol 373 ◽  
pp. 164-173 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Takafumi Seto ◽  
Uwe R. Kortshagen ◽  
Christopher J. Hogan

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 511 ◽  
Author(s):  
Wenjun Liang ◽  
Huipin Sun ◽  
Xiujuan Shi ◽  
Yuxue Zhu

In order to make full use of the heat in nonthermal plasma systems and decrease the generation of by-products, a reverse-flow nonthermal plasma reactor coupled with catalyst was used for the abatement of toluene. In this study, the toluene degradation performance of different reactors was compared under the same conditions. The mechanism of toluene abatement by nonthermal plasma coupled with catalyst was explored, combined with the generation of ozone (O3), NO2, and organic by-products during the reaction process. It was found that a long reverse cycle time of the reactor and a short residence time of toluene decreased the internal reactor temperature, which was not beneficial for the degradation of toluene. Compared with the dielectric barrier discharge (DBD) reactor, toluene degradation efficiency in the double dielectric barrier discharge (DDBD) reactor was improved at the same discharge energy level, but the concentrations of NO2 and O3 in the effluent were relatively high; this was improved after the introduction of a catalyst. In the reverse-flow nonthermal plasma reactor coupled with catalyst, the CO2 selectivity was the highest, while the selectivity and amount of NO2 was the lowest and aromatics, acids, and ketones were the main gaseous organic by-products in the effluent. The reverse-flow DBD-catalyst reactor was successful in decreasing organic by-products, while the types of organic by-products in the DDBD reactor were much more than those in the DBD reactor.


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