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CHAPTER 3. Solar Photocatalytic Disinfection of Water

Fernandez-Ibanez, Pilar, Byrne, John A., Dunlop, PSM, Dunlop, Patrick S. M., Karaolia, Popi and Fatta-Kassinos, Despo (2016) CHAPTER 3. Solar Photocatalytic Disinfection of Water. In: Photocatalysis: Applications. RSC Energy & Environment Series, pp. 72-91. ISBN 978-1-78262-709-8 [Book section]

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URL: http://dx.doi.org/10.1039/9781782627104-00072

DOI: doi:10.1039/9781782627104-00072

Abstract

It is estimated that there are 748 million people throughout the world without access to improved water sources for drinking and many more rely on water that is not safe to drink due to contamination with pathogenic microorganisms. Furthermore, the reuse of wastewater is becoming increasingly important due to water scarcity throughout the globe, and it is vitally important to ensure that water for reuse is free from pathogenic microorganisms. Solar energy is free and ubiquitous on the Earth's surface. The combination of solar disinfection and photocatalysis technology offers real possibilities for removing lethal pathogenic microorganisms from polluted water and drinking water. The treatment time taken for the solar disinfection of drinking water can be greatly reduced by utilizing heterogeneous photocatalysis. This chapter reviews and compares the fundamental mechanisms of solar and solar photocatalytic inactivation of microorganisms. The complexity of the mechanisms, involving reactive oxygen species and their effects on the cell wall, membrane and internal components of microorganism, are discussed. Furthermore, the photocatalytic inactivation of antibiotic resistant bacteria is discussed. The development of visible light active photocatalytic materials for solar disinfection is reviewed and, finally, there is a short discussion concerning photo-reactors specifically for the solar photocatalytic disinfection of water.

Item Type:Book section
Keywords:E. coli, antimicrobial resistant bacteria, chlorine, ozone, advanced oxidation processes, reactive oxygen species
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:36813
Deposited By: Dr Pilar Fernandez-Ibanez
Deposited On:15 Feb 2017 13:52
Last Modified:15 Feb 2017 13:52

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