Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/46337
Title: TiO2-photocatalysis as a tertiary treatment of naturally treated wastewater
Authors: Araña, J. 
Herrera Melián, J. A. 
Doña Rodríguez, J. M. 
González Díaz, O. 
Viera, A.
Pérez Peña, J. 
Marrero Sosa, P. M.
Espino Jiménez, V.
UNESCO Clasification: 3303 ingeniería y tecnología químicas
221001 Catálisis
330810 Tecnología de aguas residuales
Keywords: Photocatalysis
FT-IR
TiO2
Wastewater
Activated carbon
Issue Date: 2002
Publisher: 0920-5861
Journal: Catalysis Today 
Conference: Ibero-American Workshop on Photocatalysis
Abstract: Solar TiO2-photocatalysis was applied to waters from a natural wastewater treatment plant located in the Universidad de Las Palmas de Gran Canaria. Degussa P-25 TiO2 and its mixture with activated carbon (AC–TiO2) were used as catalysts. The presence of ozone and certain ions such as phosphates on the photocatalytic degradation of organic matter was also studied. Disinfection experiments have provided interesting results, particularly when using the catalyst AC–TiO2 and ozone, since total disinfection was achieved in less than 60 min. No bacterial reappearance at 24 or 48 h was observed. Additionally, this catalyst gave important TOC and some ions concentrations reductions. Studies in catalyst reuse revealed that the catalyst AC–TiO2 showed almost no deactivation.
URI: http://hdl.handle.net/10553/46337
ISSN: 0920-5861
DOI: 10.1016/S0920-5861(02)00226-2
Source: Catalysis Today [ISSN 0920-5861], v. 76 (2-4), p. 279-289
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