Abstract the mechanism of methylene blue (mb) oxidation initiated by hydroxyl radicals ( h) in a gas–liquid multiphase plasma reactor was investigated. This study investigates the effect of bath solution temperature on methylene blue decolorization in a point-to-plate electrical discharge plasma reactor the results show an increase in the initial percentage of dye decolorization with an increase in the bath solution temperature from 4 to 28 oc, but from 28 to 37 oc there was no change. Effect of temperature on methylene blue decolorization in aqueous medium in electrical discharge plasma reactor luís o de b benetoli,,a bruno m cadorin,a cícero da s postiglione,b the literature for organic compound degradation1 the.
In this study, methylene blue degradation was investigated using different feed gases (ar, n 2, and o 2) in an electrical discharge ntp reactor applying the same electrical current, no significant differences in the degradation percentages were found for the different gases. Decolorization of methylene blue in aqueous medium using dielectric barrier discharge plasma reactor (dbd) reactor is an example of ntp reactor which is characterized by the finally degradation of a dye into inorganic products such as so4 2-, no 3-, co 2, nh4.
Purified water supply for human use, agriculture and industry is the major global priority nowadays the advanced oxidation process based on atmospheric pressure non-thermal plasma (ntp) has been used for purification of wastewater, although the underlying mechanisms of degradation of organic pollutants are still unknown. Ferrocene (fc) was used to catalyze a heterogeneous fenton reaction for the degradation of methylene blue (mb) the high catalytic activity and stability of fc in the fc/fenton-like system are confirmed. Degradation of a model textile dye methylene blue the degradation of mb during the plasma treatment was followed with an uv–vis spectrometer at 668 nm when the dye solution exposed to the plasma, a noticeable ph decrease was observed. Request pdf on researchgate | on jan 8, 2013, p manoj kumar reddy and others published degradation and mineralization of methylene blue by dielectric barrier discharge non-thermal plasma reactor.
A fixed-bed photocatalytic reactor was designed and built in the laboratory a methylene blue aqueous solution, used as model compound for dye contaminated water, was fed into the reactor methylene blue destruction efficiencies were monitored spectrophotometrically. Dbd-ntp reactor test for degradation of methylene blue abstract: electrical discharges generated at water-gas interface in a nonthermal plasma (ntp) reactor were utilized for the degradation and mineralization of a model aqueous organic. Decolorization process of methylene blue (mb) in aqueous solution using non-thermal plasma is presented plasma reactor with dielectric barrier discharges (dbd) and air as a processing gas at atmospheric pressure and room temperature is described. Abstract this study investigates the effect of bath solution temperature on methylene blue decolorization in a point-to-plate electrical discharge plasma reactor.
Catalytic degradation of methylene blue and found that degradation reaction followed apparent first-order kinetics and was dependent on the ph solution with the highest degradation at ph 7 there is a need to determine the optimal conditions of experimental parameters for effective application of dye wastewater treatment by aop. The objective of the present study is to design and test the feasibility of ntp dielectric barrier discharge (ntp–dbd) reactor during the mineralization of the es in aqueous medium.
Methylene blue (mb) was used as a model pollutant and its degradation was compared by recycling and non-recycling of overhead gases in the reactor though, some of the studies have discussed about the mb degradation in gas phase plasma treatment [32,  , the insight into efficient utilization of gas-phase ros for the mb degradation is lacking.
The mechanism of methylene blue (mb) oxidation initiated by hydroxyl radicals ( h) in a gas–liquid multiphase plasma reactor was investigated direct current corona plasma was applied to produce. A dbd-ntp reactor was tested for the degradation of 100 ppm methylene blue it was observed that the optimum discharge gap was 35 mm and addition of hydrogenperoxide improved the performance of the reactor, probably due to the formation of hydroxyl radical via fenton reactions.