NDLI: Optimization of the synthesis process of an iron oxide nanocatalyst supported on activated carbon for the inactivation of Ascaris eggs in water using the heterogeneous Fenton-like reaction.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Morales-Pérez, Ariadna A. Maravilla, Pablo Solís-López, Myriam Schouwenaars, Rafael Durán-Moreno, Alfonso Ramírez-Zamora, Rosa-María
Description	Author Affiliation: Morales-Pérez AA ( Instituto de Ingeniería, Universidad Nacional Autónoma de México, México D.F., México E-mail: rramirezz@iingen.unam.mx.); Maravilla P ( Departamento de Ecología de Agentes Patógenos, Hospital General Dr. Manuel Gea González, SSA, México D.F. 14000, México.); Solís-López M ( Instituto de Ingeniería, Universidad Nacional Autónoma de México, México D.F., México E-mail: rramirezz@iingen.unam.mx.); Schouwenaars R ( Departamento de Materiales y Manufactura, DIMEI, Universidad Nacional Autónoma de México, México D.F., México.); Durán-Moreno A ( Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Coyoacán, México, D. F. 04510, México.); Ramírez-Zamora RM ( Instituto de Ingeniería, Universidad Nacional Autónoma de México, México D.F., México E-mail: rramirezz@iingen.unam.mx.)
Abstract	An experimental design methodology was used to optimize the synthesis of an iron-supported nanocatalyst as well as the inactivation process of Ascaris eggs (Ae) using this material. A factor screening design was used for identifying the significant experimental factors for nanocatalyst support (supported %Fe, (w/w), temperature and time of calcination) and for the inactivation process called the heterogeneous Fenton-like reaction (H2O2 dose, mass ratio Fe/H2O2, pH and reaction time). The optimization of the significant factors was carried out using a face-centered central composite design. The optimal operating conditions for both processes were estimated with a statistical model and implemented experimentally with five replicates. The predicted value of the Ae inactivation rate was close to the laboratory results. At the optimal operating conditions of the nanocatalyst production and Ae inactivation process, the Ascaris ova showed genomic damage to the point that no cell reparation was possible showing that this advanced oxidation process was highly efficient for inactivating this pathogen.
File Format	HTM / HTML
ISSN	02731223
Issue Number	5
Volume Number	73
e-ISSN	19969732
Journal	Water Science & Technology
Language	English
Publisher	IWA Publishing
Publisher Date	2016-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Hydrology Ascaris Drug Effects Carbon Chemistry Ferric Compounds Nanostructures Ovum Water Parasitology Animals Hydrogen Peroxide Oxidation-reduction Water Pollutants, Chemical Analysis Water Purification Methods Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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