Inderscience Publishers

Decolourisation of dye solution using an electrical discharge with TiO2 suspension

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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.

Keywords: dye decolourisation, electrical discharge, three-phase reactors, titanium dioxide, methyl orange, hydroxy radical, wastewater treatment, gas injection, flow rate

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