On the Factors Influencing the Performance of Solar Reactors for Water Disinfection with Photosensitized Singlet Oxygen

2008 ◽  
Vol 42 (1) ◽  
pp. 301-307 ◽  
Author(s):  
Francisco Manjón ◽  
Laura Villén ◽  
David García-Fresnadillo ◽  
Guillermo Orellana
Keyword(s):  
Singlet Oxygen ◽  
Water Disinfection ◽  
Factors Influencing ◽  
Solar Reactors

Solar Photocatalytic Detoxification and Disinfection of Water: Recent Overview

2006 ◽  
Vol 129 (1) ◽  
pp. 4-15 ◽  
Author(s):  
Julián Blanco-Galvez ◽  
Pilar Fernández-Ibáñez ◽  
Sixto Malato-Rodríguez
Keyword(s):  
Water Treatment ◽  
Research And Development ◽  
Water Disinfection ◽  
Water Contaminants ◽  
Toxic Compounds ◽  
Solar Photocatalysis ◽  
Experimental Systems ◽  
Solar Reactors ◽  
Photocatalytic Processes

During the last few years, there has been a plethora of research and development in the area of solar photocatalysis (TiO2 and photo-Fenton). This overview, of the most recent papers on the use of sunlight to produce the O∙H, comments on those most relevant to the development of the technology and summarizes most of the recent research related to the degradation of water contaminants, and how solar photocatalysis (coupled with biotreatment) could significantly contribute to the treatment of very persistent toxic compounds. Various solar reactors for photocatalytic water treatment based mainly on nonconcentrating collectors developed during the last few years are also described in detail. This review also reports the use of the photocatalytic processes (TiO2) to inactivate microorganisms present in water, placing special emphasis on those applications that make use of sunlight. Work on water disinfection mechanisms in the last decade is summarized in the last part of this overview, with attention to some experimental systems developed to optimize this disinfection technology.

Factors Influencing the Regioselectivity of the Oxidation of Asymmetric Secondary Amines with Singlet Oxygen

2015 ◽  
Vol 21 (17) ◽  
pp. 6528-6534 ◽  
Author(s):  
Dmitry B. Ushakov ◽  
Matthew B. Plutschack ◽  
Kerry Gilmore ◽  
Peter H. Seeberger
Keyword(s):  
Singlet Oxygen ◽  
Secondary Amines ◽  
Factors Influencing

scholarly journals Validation of a solar-thermal water disinfection model for Escherichia coli inactivation in pilot scale solar reactors and real conditions

2018 ◽  
Vol 331 ◽  
pp. 831-840 ◽  
Author(s):  
María Castro-Alférez ◽  
María Inmaculada Polo-López ◽  
Javier Marugán ◽  
Pilar Fernández-Ibáñez
Keyword(s):  
Escherichia Coli ◽  
Thermal Water ◽  
Pilot Scale ◽  
Water Disinfection ◽  
Solar Thermal ◽  
Solar Reactors

Factors influencing the quantum yields for rose bengal formation of singlet oxygen

1986 ◽  
Vol 35 (3) ◽  
pp. 277-281 ◽  
Author(s):  
Peter Gottschalk ◽  
Jerzy Paczkowski ◽  
D.C. Neckers
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Quantum Yields ◽  
Factors Influencing

Solar water disinfection by singlet oxygen photogenerated with polymer-supported Ru(II) sensitizers

Solar Energy ◽  
2006 ◽  
Vol 80 (10) ◽  
pp. 1382-1387 ◽  
Author(s):  
M. Emilia Jiménez-Hernández ◽  
Francisco Manjón ◽  
David García-Fresnadillo ◽  
Guillermo Orellana
Keyword(s):  
Singlet Oxygen ◽  
Water Disinfection ◽  
Solar Water ◽  
Solar Water Disinfection ◽  
Polymer Supported

scholarly journals DESINFECCIÓN DE AGUAS MEDIANTE OXÍGENO SINGLETE

2017 ◽  
Vol 20 (2) ◽  
pp. 15
Author(s):  
Emilia Jiménez Hernández
Keyword(s):  
Reactive Oxygen Species ◽  
European Union ◽  
Singlet Oxygen ◽  
Research Group ◽  
Water Disinfection ◽  
Oxygen Species ◽  
The European Union ◽  
Advantages And Disadvantages ◽  
New Methods ◽  
Palabras Clave

Esta comunicación ofrece una visión general de las investigaciones sobre los procedimientos de desinfección de agua basados en el empleo de oxígeno singlete, especie con acción bactericida que puede generarse de forma catalítica mediante fotosensibilización. La presentación comienza con una revisión de los tratamientos existentes actualmente para la desinfección del agua, destacando las ventajas y los inconvenientes o limitaciones que caracterizan a algunos de ellos. Se introducen, a continuación, las propiedades del oxígeno singlete y su reactividad hacia las moléculas que componen los sistemas biológicos, ya que en ella radica la acción germicida de esta especie reactiva de oxígeno. Una vez descrito el procedimiento de generación de oxígeno singlete mediante fotosensibilización, se muestran diversas estructuras de moléculas empleadas frecuentemente como fotosensibilizadores de oxígeno singlete. Finalmente, tras comentar algunos aspectos de las investigaciones publicadas por diversos autores sobre el empleo de oxígeno singlete como agente desinfectante, se presentan los estudios actualmente llevamos a cabo en nuestro grupo de investigación del Laboratorio de Fotoquímica Aplicada (Universidad Complutense de Madrid, España). La investigación que realizamos dentro del proyecto SOLWATER, financiado por la Unión Europea, persigue como objetivo general el desarrollo de nuevos métodos de desinfección de agua que, aprovechando la luz solar para generar la especie germicida mediante fotosensibilización, resulten económicos, seguros y respetuosos con el medio ambiente. Palabras clave.-Desinfección de aguas, Oxigeno singlete. ABSTRACTThis paper provides an overview of research on water disinfection procedures based on the use of singlet oxygen, bactericidal species that can be generated catalytically by photosensitization. The presentation begins with a review of currently available treatments for water disinfection, highlighting the advantages and disadvantages or limitations that characterize some of them. Are introduced, then the properties of singlet oxygen and its reactivity to the molecules that comprise biological systems because it lies in the germicidal action of this reactive oxygen species. Having described the process of generation of singlet oxygen by photosensitization, showing various structures of molecules commonly used as singlet oxygen photosensitizers. Finally, after discussing some aspects of the research published by various authors on the use of singlet oxygen as a disinfectant, is currently present studies we conducted in our research group of the Laboratory of Applied Photochemistry (Universidad Complutense de Madrid, Spain). The research into SOLWATER project, funded by the European Union, the general had with objective of developing new methods of disinfecting water, using sunlight to generate the kind germicide by photosensitization, resulting economic, safe and friendly environment. Keywords.- Waste disinfection, Singlet oxygen.

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