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An Application of AC Glow Discharge Stabilized by Fast Air Flow for Water Treatment

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1 Author(s)
Nikiforov, A.Y. ; Lab. of Nonlinear Plasma Processes & Technol., Russian Acad. of Sci., Ivanovo

A scheme for a plasma-solution reactor on the basis of a glow discharge stabilized by a fast air flow is suggested as a novel water treatment technique. The discharge ignition voltage is about 2.7 kV, and the input power can be as low as 3 W. It is found that plasma is generated in pulsed mode where the duration of each individual pulse is 15-20 mus. A maximal destruction rate of methylene blue dye of 3.27 times 10-9mol/l middots has been received in an acidic medium at a discharge power level of 6 W. A comparison of the efficiency of plasma interaction in different solutions has been carried out. The chemical effectiveness of the plasma treatment decreases with an increase of solution pH. It is shown that the developed glow discharge two phase reactor can be effectively used for destruction of water pollutants.

Published in:

Plasma Science, IEEE Transactions on  (Volume:37 ,  Issue: 6 )