It is estimated that around 780 million people are without access to an improved drinking water source and many more are forced to rely on sources that are microbiologically unsafe.  Furthermore, water recycling and reuse is becoming very important in several regions throughout the world and a sustainable method for the disinfection of water for reuse is needed.  Irradiating water with solar light can improve the safety of the water by reducing the pathogen loading.  The addition of a photocatalyst may enhance the efficiency of solar disinfection.  Titanium dioxide is a good photocatalyst but utilises UV.  This paper will look at different approaches that have been tested for enhancing solar photocatalytic disinfection including modified titania and compound parabolic collectors (CPC)-based reactors.  The challenges that must be addressed before real world deployment will also be discussed.

Solar photocatalytic disinfection of water for developing countries

248th National Meeting (2014)

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