Industrial & Engineering Chemistry Research, Vol.58, No.6, 2396-2404, 2019
A Novel Rotating Multielectrodes Reactor for Electrochemical Oxidation Process Intensification
Electrochemical oxidation is considered as a promising technology for wastewater treatment. In this work, a novel rotating multielectrodes reactor (RMER) has been developed to intensify the electrochemical oxidation process of phenol simulated wastewater. Apart from the electro-oxidation function, the anodes in RMER act as a rotational disturbance promoter to deal with the problem of the bubble curtain. Experimental results in RMER showed that the phenol degradation rate of a rotating anode at 300 rpm was 1.45 times that of static anode. Compared with a static anode, the mass transfer coefficient of the RMER with rotational anode increased by 110%. Bubble behavior was investigated by a visualization method, showing that the increase of the anode effective area was one of the main factors to enhance the phenol degradation efficiency. RIVIER displays bright prospects in the application of wastewater treatment.