scholarly journals Immobilized TiO2for Phenol Degradation in a Pilot-Scale Photocatalytic Reactor

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Sylwia Mozia ◽  
Piotr Brożek ◽  
Jacek Przepiórski ◽  
Beata Tryba ◽  
Antoni W. Morawski
Keyword(s):  
Phenol Degradation ◽  
Pilot Scale ◽  
Mercury Lamp ◽  
Mechanical Destruction ◽  
Photocatalytic Reactor ◽  
Phenol Decomposition ◽  
Plant Reactor ◽  
Carbon Concentrations ◽  
Pilot Plant Reactor ◽  
Fiberglass Cloth

Phenol degradation was carried out in a photocatalytic pilot plant reactor equipped with a UV/vis mercury lamp. The total volume of treated water was equal to 1.35 m3. TiO2P25 was used as a photocatalyst and it was immobilized on two different supports: (i) a steel mesh and (ii) a fiberglass cloth. Moreover, the performance of commercially available Photospheres-40 was examined. In addition, an experiment in the absence of a photocatalyst was conducted. The commercially available Photospheres-40 were found to be inadequate for the presented application due to their fragility, which in connection with vigorous mixing and pumping led to their mechanical destruction and loss of floating abilities. The highest effectiveness of phenol decomposition and mineralization was observed in the presence of TiO2supported on the fiberglass cloth. After 15 h of the process, phenol and total organic carbon concentrations decreased by ca. 80% and 50%, respectively.

scholarly journals Innovative photocatalytic reactor for the degradation of VOCs and microorganism under simulated indoor air conditions: Cu-Ag/TiO2-based optical fibers at a pilot scale

2021 ◽  
Vol 411 ◽  
pp. 128622
Author(s):  
Wala Abou Saoud ◽  
Abdoulaye Kane ◽  
Pierre Le Cann ◽  
Anne Gerard ◽  
Lina Lamaa ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Indoor Air ◽  
Pilot Scale ◽  
Photocatalytic Reactor

Solar Pilot-scale Photocatalytic Degradation of Microcystin-LR

2002 ◽  
Vol 5 (1) ◽  
Author(s):  
Andrew J. Feitz ◽  
T. David Waite ◽  
Brace H. Boyden ◽  
Gary J. Jones
Keyword(s):  
Photocatalytic Degradation ◽  
Reactor Design ◽  
Pilot Scale ◽  
Photocatalytic Reactor ◽  
Immobilized Catalyst

AbstractA solar immobilized-catalyst photocatalytic reactor design and TiO

Treatment of Phenol, Formaldehyde and their Mixtures by Photocatalytic and Biological Methods

2008 ◽  
Vol 11 (2) ◽  
Author(s):  
J. Araña ◽  
J. A. Herrera Melián ◽  
J. A. Ortega ◽  
J. I. Macías Sánchez ◽  
J. Pérez Peña
Keyword(s):  
Biological Treatment ◽  
Phenol Formaldehyde ◽  
Phenol Degradation ◽  
Degradation Process ◽  
Inhibitory Effect ◽  
Photocatalytic Reactor ◽  
Scavenging Effect ◽  
Ftir Studies ◽  
Speed Up ◽  
Biological Methods

AbstractPhenol and formaldehyde are toxic compounds present in many industrial wastewaters. Particularly, in synthetic resin producing industries the concentrations of one or both of these organics can reach concentrations of grams per litre. In the present work, the degradation of phenol, formaline (formaldehyde: methanol mixture) and their mixtures with photocatalytic and biological methods has been studied to determine the best strategy for the treatment of wastewaters containing those organics. Photocatalytic studies in batch and in continuous (by dosing) have been performed. Experiments in batch showed that formaline slows down phenol degradation. Another set of experiments with phenol-methanol mixtures revealed that the presence of this alcohol also slows down the degradation of phenol but less than the mixture formaldehyde: methanol. FTIR studies indicated the formation of 4-hydroxybenzaldehyde as a result of phenol-formaldehyde interaction with the catalyst surface. Thus, the lower phenol degradation rate is attributed to the formation of this aldehyde on the surface of the catalyst in addition to the ·OH scavenging effect of methanol. This inhibitory effect in the degradation was overcome by dosing the influent into the photocatalytic reactor. In the present work the biological systems have been employed to optimise and speed up the degradation process of phenol-formaldehyde mixtures. These systems have shown lower detoxification efficiency of the samples in comparison with that of the photocatalytic method with dosing. Taking into account the obtained results of degradation and toxicity, a novedous process consisting of a biological treatment followed by a photocatalytic one with dosage for the treatment of formaldehyde-phenol containing wastewaters is proposed.

Comparing the photocatalytic oxidation of Metoprolol in a solarbox and a solar pilot plant reactor

2014 ◽  
Vol 254 ◽  
pp. 17-29 ◽  
Author(s):  
Violette Romero ◽  
Fabiola Méndez-Arriaga ◽  
Pilar Marco ◽  
Jaime Giménez ◽  
Santiago Esplugas
Keyword(s):  
Pilot Plant ◽  
Photocatalytic Oxidation ◽  
Plant Reactor ◽  
Pilot Plant Reactor
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