Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12084
ชื่อเรื่อง: Decolorization of methylene blue in an ar non-thermal plasma reactor
ผู้แต่ง: Matra K.
Tawkaew S.
Keywords: Argon
Aromatic compounds
Flow of gases
Plasma applications
Rate constants
Water treatment
Argon plasmas
Decolorization
Decolorization rates
Experimental conditions
Methylene Blue
Non-thermal plasma reactors
Nonthermal
Pseudo-first order reactions
Electric discharges
วันที่เผยแพร่: 2020
บทคัดย่อ: The decolorization of methylene blue (MB) dye wastewater was performed via atmospheric Ar non-thermal plasma (Ar-NTP). Investigations were carried out into two main aspects of the model; hydrogen peroxide (H2O2) production and the decolorization of MB by Ar-NTP. It was found that H2O2 could be obtained better at a lower pH and with a higher Ar gas flow rate and plasma power. The decolorization rate constant of MB decreased with the increase in the solution pH, and it was found to follow a pseudo-first-order reaction. The optimum experimental conditions in this paper for the decolorization of a 5 ppm initial MB concentration were: 20.35 W plasma power, 4 LPM Ar gas flow rate, and pH 5, together with the addition of 920 ppm Fe2+. The decorization rate constant was 83.7x10-3 min-1, which was 9.73 times greater than that without the addition of Fe2+ under the same experimental conditions. © 2020 School of Science, IHU.
URI: https://ir.swu.ac.th/jspui/handle/123456789/12084
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082694707&doi=10.25103%2fjestr.131.15&partnerID=40&md5=1191667758dd70fff2994c14724f3ac9
ISSN: 17919320
Appears in Collections:Scopus 1983-2021

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