Authors: Hidetoshi Sekiguchi, Krittiya Pornmai
Addresses: Department of Chemical Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan. ' Department of Chemical Engineering, Thammasat University, Rangsit campus, Klong Luang, Phatumtani 12120, Thailand
Abstract: 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.
International Journal of Environment and Waste Management, 2008 Vol.2 No.4/5, pp.329 - 335
Published online: 04 Dec 2008 *Full-text access for editors Access for subscribers Purchase this article Comment on this article