Special Issue "Photocatalysis for Wastewater Treatment"
Deadline for manuscript submissions: 15 March 2019
Starting in the 21st century, our society has faced general access of all the world population to safe water and to the disposal of wastewater without threatening water resources and the environment among non-solved challenges. For example, the vision of European Innovation Partnership on Water (EIP) is: “To stimulate creative and innovative solutions that contribute significantly to tackle water challenges at European and global level”. In fact, since the effluent standards for municipal treatment plants are becoming more restrictive, Water Boards are investing more in innovative technologies for wastewater remediation. As a result, the effluents quality has been drastically enhanced, bringing new opportunities and possibilities to recycle them for agriculture, industrial uses, street cleaning, or recreational uses.
Nevertheless, in recent years, detection of an increasing number of xenobiotics at low concentrations (typically µg/L or ng/L) in aquatic systems constitutes a major concern, as their effect on ecosystems or human health remains uncertain. Examples of those xenobiotics include pharmaceuticals, steroids, hormones, personal care products, antiseptics, surfactants, flame-retardants, industrial additives or gasoline additives, as well as their metabolites or degradation products. Conventional wastewater treatments are not always effective for the removal of these substances; thus, development of effective technologies for dealing with this source of contamination is currently a matter of active research. Catalytic methods may constitute a greener alternative to face degradation of these contaminants.
Among chemical methods, oxidative processes have attracted more attention than chemical reduction of recalcitrant contaminants, that has also been reported but to a much lesser extent and deserves further research efforts. Moreover, solar exposure to remove pollutants constitutes the major abiotic pathway for remediation of natural ecosystems. The use of environmentally-friendly reagents and catalysts, together with solar energy as an abundant and renewable energy resource is the basis of photocatalysis. This combination of catalysis and light has deserved recently the attention of researchers as a highly appealing alternative for wastewater treatment and constitutes the topic of the present Special Issue.Prof. Dr. Miguel A. Miranda
Prof. Dr. M. Luisa Marin
Manuscript Submission Information
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- reaction mechanisms
- visible light