Advanced oxidative water treatment process using an electrohydraulic discharge reactor and TiO2 immobilised on nanofibres

The aim of this study was to design and build an electrohydraulic discharge reactor in such a way that the synthetic immobilized TiO2 nanophotocatalytic components could be integrated, for the production of active species such as OH radicals, ozone and hydrogen peroxide, as a cocktail to clean drinking water without the addition of chemicals. The research objectives include: • To design and construct the different AOP prototypes based on various electrode configurations and compare their operation. • To optimize the discharge parameters and conditions of the best AOP system. • To determine the effectiveness of the best prototype for the degradation of methylene blue as model pollutant. • To compare the designed AOP system with the Sodis method for the disinfection of contaminated river water. • To prepare supported TiO2 nanoparticles via electro spinning, followed by combustion and study the effect on the morphology of TiO2 nanoparticles. • To determine the stability and robustness of composite nano-crystalline TiO2 photocatalysts by sonication • To determine the enhanced effect of combining the composite TiO2 in the AOP system on degradation of methylene blue under the same conditions. • To detect the active species promoting disinfection.

Grantor dc:publisher.institution

University of Western Cape

Year dc:date.issued

2013

Author dc:creator

• Okolongo, Gauthier Nganda

Advisors dc:contributor.advisor

• Petrik, Leslie
• Perold, Willem

• Electrohydraulic
• Immobilized
• Cocktail
• Oxidative
• Methylene blue
• Nanofibres
• Discharge
• Reactor
• Titanium dioxide
• Water treatment
• Photocatalysis

Licence

• https://uwcscholar.uwc.ac.za/bitstreams/1eb7e850-9ab8-4a3f-a0b2-f38a393e8227/download