Keywords: dye decolourisation, electrical discharge, three-phase reactors, titanium dioxide, methyl orange, hydroxy radical, wastewater treatment, gas injection, flow rate
Decolourisation of dye solution using an electrical discharge with TiO2 suspension
An electrical discharge in water with TiO2 suspension has been applied for the decolourisation of methyl orange as a model of dye. The results showed the decolourisation was successful in the reactor. The increase in the flow rate of gas injection enhanced the decolourisation rate. Oxygen injection had a stronger influence when compared with Ar injection. The suspension of TiO2 improved the decolourisation. The results suggested the plasma-assisted three-phase reactor had a promising possibility to treat various kinds of wastewater.