Non-thermal plasma induced decomposition of 2-chlorophenol in water

Application of non-thermal plasma produced by pulsed corona discharge in water for degradation of 2-chlorophenol has been investigated in reactor with the needle-plate geometry of electrodes. It was shown that decomposition of 2-chlorophenol by the discharge can be referred essentially to the oxidation by hydroxyl radical and it can be described by the first order kinetics. The complete removal of 500 mumol.l(-1) 2-chlorophenol by the discharge was attained in the presence of ferrous ions with the energy efficiency of 3.5x10(-3) etamol.J(-1). Chlorohydroquinone, chlorobenzoquinone, 3-chlorocatechol and catechol were detected as the primary decomposition products.