TiO2/β-SiC foam-structured photoreactor for continuous wastewater treatment.
BACKGROUND
This study of photocatalytic degradation of wastewater was carried out in alveolar cell β-SiC foam-structured photocatalytic reactors working in a recirculation mode. The immobilization of TiO2 on β-SiC foams was efficiently obtained through a sol-gel technique in acidic conditions.


CONCLUSIONS
In order to optimize degradation yields obtained by the foam-structured prototype reactor for the photocatalytic water treatment, the operating conditions of the photoreactor have been investigated and the efficiency of the process was evaluated by measuring the photocatalytic degradation of Diuron (3-(3,4-dichlorophenyl)-1,1-dimethyl-urea)) under UV irradiation. Kinetic studies were carried out by investigating the influence of different parameters controlling the reaction (TiO2 loading and β-SiC foam cell size). The ageing of TiO2/β-SiC foam photocatalytic materials and the mineralization (TOC, Cl-, NO3- and NH4+) of Diuron were investigated.
Antenne de Saint-Avold, Université de Lorraine, Rue Victor Demange, 57500, Saint-Avold, France.
Natalie Amoin
NA
Kouamé
Didier
D
Robert
Valérie
V
Keller
Nicolas
N
Keller
Charlotte
C
Pham
Patrick
P
Nguyen
D017554:Carbon Compounds, Inorganic / Q000737:chemistry*; D004237:Diuron / Q000737:chemistry; D006540:Herbicides / Q000737:chemistry; D055668:Photochemical Processes; D017655:Silicon Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry
D017554:Carbon Compounds, Inorganic; D004237:Diuron; D006540:Herbicides; D017655:Silicon Compounds; D014025:Titanium; D062065:Wastewater; D014874:Water Pollutants, Chemical; C009495:titanium dioxide; C022088:silicon carbide