Journal ArticleDOI
Decontamination and disinfection of water by solar photocatalysis: Recent overview and trends
TLDR
In this article, the authors reviewed the use of sunlight to produce the OH radicals by TiO2 photocatalysis and photo-Fenton process and summarized most of the research carried out related to solar photocatalytic degradation of water contaminants and how it could significantly contribute to the treatment of persistent toxic compounds.About:
This article is published in Catalysis Today.The article was published on 2009-09-15. It has received 2541 citations till now. The article focuses on the topics: Photocatalysis & Water treatment.read more
Citations
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Journal ArticleDOI
Recent Developments in Photocatalytic Water Treatment Technology: A Review
TL;DR: For the first time, a multi-variables optimization approach is described to determine the optimum operation parameters so as to enhance process performance and photooxidation efficiency in the photocatalytic water treatment process.
Journal ArticleDOI
A review on the visible light active titanium dioxide photocatalysts for environmental applications
Miguel Pelaez,Nicholas T. Nolan,Suresh C. Pillai,Michael K. Seery,Polycarpos Falaras,Athanassios G. Kontos,Psm Dunlop,Jwj Hamilton,John Byrne,Kevin E. O'Shea,Mh. Entezari,Dionysios D. Dionysiou +11 more
TL;DR: In this paper, the development of different strategies to modify TiO2 for the utilization of visible light, including non metal and/or metal doping, dye sensitization and coupling semiconductors are discussed.
Journal ArticleDOI
A review on g-C3N4-based photocatalysts
TL;DR: In this paper, the fundamental mechanism of heterogeneous photocatalysis, advantages, challenges and the design considerations of g-C3N4-based photocatalysts are summarized, including their crystal structural, surface phisicochemical, stability, optical, adsorption, electrochemical, photoelectrochemical and electronic properties.
Journal ArticleDOI
Advanced Nanoarchitectures for Solar Photocatalytic Applications
TL;DR: UV-Visible ار راد ن .د TiO2 ( تیفرظ راون مان هب نورتکلا یاراد لماش VB و ) رگید اب لاقتنا VB (CO2) .
Journal ArticleDOI
Combination of Advanced Oxidation Processes and biological treatments for wastewater decontamination—A review
TL;DR: The main conclusions arrived at from the overall assessment of the literature are that more work needs to be done on degradation kinetics and reactor modeling of the combined process, and also dynamics of the initial attack on primary contaminants and intermediate species generation.
References
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Journal ArticleDOI
Comparison of photo-Fenton treatment and coupled photo-Fenton and biological treatment for detoxification of pharmaceutical industry contaminants
A. Zapata,Isabel Oller,Raphael Gallay,Cesar Pulgarin,Manuel I. Maldonado,Sixto Malato,Wolfgang Gernjak +6 more
TL;DR: In this paper, the authors present GGEC-ARTICLE-2009-016, a Web of Science Record created on 2009-08-18, modified on 2017-07-16.
Journal ArticleDOI
Dynamic Models for Hydrogen Peroxide Control in Solar Photo-Fenton Systems
José Domingo Álvarez,Wolfgang Gernjak,Sixto Malato,Manuel Berenguel,Maria Fuerhacker,Luis J. Yebra +5 more
Abstract: Simulations and real decomposition experiments with hydrogen peroxide induced by dissolved iron and solar illumination were performed in a solar pilot plant with compound parabolic collectors designed for photo-Fenton wastewater treatment. The structure of a gray-box linear model aimed at reproducing system dynamics with parameters dependent on operating conditions when operating around prescribed set-points is proposed. This simple model relates the changes in hydrogen peroxide concentration due to changes in hydrogen peroxide injection, dissolved iron, and solar illumination. Based on this model, control of the hydrogen peroxide concentration at set points between 200–900 mg/L±10 mg/L under dynamic conditions (simultaneous decomposition and addition of hydrogen peroxide by a dosage pump), was achieved. Different basic approaches for controller actuation upon the frequency of the dosage pump were tested, ranging from a simple PI controller to a PI controller plus antiwindup action and feedforward control. From these basic approaches, conclusions can be drawn about the process's behavior under closed-loop control
Journal ArticleDOI
Photo Assisted Fenton in a Batch and a Membrane Reactor for Degradation of Drugs in Water
TL;DR: Some advanced oxidation processes (AOP's) such as Fenton H2O2/Fe2+, photo assisted Fenton UV/H2O 2/Fe 2+, UV photolysis, and photo-assisted Fenton have been tested for the degradation of gemfibrozil in aqueous solution in a batch system and then in a membrane reactor as discussed by the authors.
Dynamic Models for Hydrogen Peroxide Control in Solar – Photo-Fenton Systems
J. D. Álvarez-Hervas,Wolfgang Gernjak,Sixto Malato,M. Berenguer,Maria Fuerhacker,Luis J. Yebra +5 more
Journal ArticleDOI
Advanced oxidation process–biological system for wastewater containing a recalcitrant pollutant
Isabel Oller,Sixto Malato,J.A. Sánchez-Pérez,M. I. Maldonado,Wolfgang Gernjak,L.A. Pérez-Estrada +5 more
TL;DR: Two advanced oxidation processes, ozonation and photo-Fenton, combined with a pilot aerobic biological reactor at field scale were employed for the treatment of industrial non-biodegradable saline wastewater containing a biorecalcitrant compound, alpha-methylphenylglycine (MPG).