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Disinfection by Chemical Oxidation Methods

Galeano, Luis-Alejandro Y Guerrero, Milena Y Sanchez, Claudia Y Gil, Antonio Y Vicente, M. Angel (2017) Disinfection by Chemical Oxidation Methods. In: The Handbook of Environmental Chemistry. Springer, Berlin, Heidelberg, Luxemburgo, pp. 1-39.

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Poor quality in drinking water is primary cause of pathogen transmission and responsible of varied infectious diseases. Methods of water treatment for human consumption must pay special attention on microbiological safe disinfection. Indeed, from the past few years laws all around the world have included new, more stringent water quality parameters. Chlorination and other mainly used conventional disinfection processes usually do not achieve full inactivation of all microorganisms present in real water supplies, whereas the presence of even low concentrations of organic matter can lead to form harmful disinfection by-products. Protozoan parasites Giardia sp. and Cryptosporidium sp. are some of the microorganisms that cannot be completely inactivated via chlorination under the same contact times typical of bacteria or virus elimination. It has increased toxicological and microbiological risks as well as operational costs. Disinfection by the advanced oxidation process more intensively studied in the past few years has been reviewed including Fenton and photo-Fenton processes and photocatalytic and electro-catalytic variants; this vibrant topic still remains partially uncovered in the available scientific background, which has motivated many recent researches and publications. This chapter is then devoted to briefly review the most recent reports studying the disinfecting potential displayed by mentioned AOPs with respect to widely and currently used conventional techniques. Revision of the inactivation of water-borne pathogens including E. coli, total coliforms, parasites as Giardia and Cryptosporidium, and virus such as coliphages has focused on advantages and disadvantages in application of every particular AOP, their disinfecting mechanisms, and the main parameters affecting the disinfection response.

Tipo de Elemento: Sección de libro
Palabras Clave: Advanced oxidation processes Chemical oxidation Disinfection Drinking water Oxidative stress Water microbiology
Asunto: Q Ciencias > QD Chemistry
Division: Facultad de Ciencias Exactas y Naturales > Programa de Química > Productividad
Depósito de Usuario: PhD Luis Alejandro Galeano
Fecha Deposito: 23 Abr 2018 14:12
Ultima Modificación: 23 Abr 2018 14:15

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