Chemical Efficiency of H2O2 Production and Decomposition of Organic Compounds under Action of DC Underwater Discharge in Gas Bubbles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F11%3APU88217" target="_blank" >RIV/00216305:26310/11:PU88217 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Chemical Efficiency of H2O2 Production and Decomposition of Organic Compounds under Action of DC Underwater Discharge in Gas Bubbles

Original language description

The underwater discharge generated by DC voltage in gas bubbles was studied. This contribution presents investigation of chemical efficiency of electric discharge in NaH2PO4.2H2O solution in range of the applied voltages 1.7-2.7 kV and discharge currentsof 10-30 mA. Plasma is generated in Air, Ar, He and N2 gases. It is shown that maximal concentration of hydrogen peroxide produced in different gases does not depend on gas composition. Highest energy consumption of H2O2 generation is achieved in Air discharge and it decreases up to 50% in He plasma. Destruction of Direct Blue 106 with initial concentration of 20 mg/l as model organic pollutant by underwater discharge is carried out in second part of the paper. Decomposition of the dye is linearly dependent on the discharge current. Maximal efficiency of the dye destruction of 65% is observed in N2 discharge after 20 minutes of treatment at the current of 30 mA. Different mechanisms of dye destruction by plasma are proposed and analyse

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IEEE Transactions on Plasma Science

ISSN

0093-3813

e-ISSN

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Volume of the periodical

39

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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