Catalyzed oxidation of phenol in pulsed high voltage discharge process
Received date: 2005-06-16
Online published: 2010-10-01
Different catalysts with various concentrations are investigated for the enhancement of phenol removal in the process of pulsed high voltage discharge. Addition of 0.05 mmol /L of Fe2+ can increase the removal rate of phenol from15.45% to 94.94%. Also 0.061 mmol /L Fe3+ can increase the removal rate 3 times higher than that without Fe3+. The cations of Fe2+ or Fe3+ can induce HO? radicals from H2O2 produced in the discharge process via Fenton’s reactions or Fenton-like reactions. UV radiated from the discharge streamer can accelerate the decomposition of H2O2, also leading to the production of HO?radicals and enhancement about 1 time higher of phenol degradation than pulsed high voltage discharge alone. Powder activated carbon with its excellent adsorption can also increase the removal rate 1.3 times higher.
Shi Fuli, Yang Shidong, Ma Jun, Liu Fanqing . Catalyzed oxidation of phenol in pulsed high voltage discharge process[J]. Industrial Water Treatment, 2005 , 25(11) : 40 -43 . DOI: 10.11894/1005-829x.2005.25(11).40
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