Alkaloid decomposition by DC pin-hole discharge in water solution

Alkaloid decomposition by DC pin-hole discharge in water solution

WoS Article

DC diaphragm discharge generated in a batch reactor was used to decompose two selected model alkaloids, caffeine and quinine in concentrations ranging from 10 to 50 ppm or 5 to 15 ppm, respectively. UV-VIS spectrometry was utilized in evaluation of H2O2 production during the process as well as degradation of caffeine. Fluorescence spectrometry was used for quantification of quinine. High rates of decomposition were reached in both cases in the anode part of the reactor. On the other hand, up to four times lower decomposition was observed in the cathode part. Total removal efficiency gained up to 300 mg/kWh for caffeine and 210 mg/kWh for quinine.

DC diaphragm discharge generated in a batch reactor was used to decompose two selected model alkaloids, caffeine and quinine in concentrations ranging from 10 to 50 ppm or 5 to 15 ppm, respectively. UV-VIS spectrometry was utilized in evaluation of H2O2 production during the process as well as degradation of caffeine. Fluorescence spectrometry was used for quantification of quinine. High rates of decomposition were reached in both cases in the anode part of the reactor. On the other hand, up to four times lower decomposition was observed in the cathode part. Total removal efficiency gained up to 300 mg/kWh for caffeine and 210 mg/kWh for quinine.

Diaphragm, Plasma, Discharge, Alkaloid, Caffeine, Quinine, Decomposition, Hydrogen Peroxide

Diaphragm, Plasma, Discharge, Alkaloid, Caffeine, Quinine, Decomposition, Hydrogen Peroxide

KLÍMOVÁ, E.; KRČMA, F.; JONISOVÁ, L.

2017

01.08.2016

1286-0042

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS

75

2

French Republic

24709-1

24709-5

5