Microbiological disinfection of water and air by photocatalysis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Comptes Rendus. Chimie Année : 2008

Microbiological disinfection of water and air by photocatalysis

T. H. Bui
  • Fonction : Auteur
C. Felix
  • Fonction : Auteur
V. Moules
  • Fonction : Auteur
B. Lina
P. Lejeune
  • Fonction : Auteur

Résumé

This article is aimed at presenting (i) a fundamental research on the efficiency of photocatalysis in water disinfection and (ii) the efficiency of a photocatalytic prototype, developed by Buxair firm, to remove avian influenza virus in air. In water disinfection, two model strains of Escherichia coli (K12 PHL849 and K12 PHL1273) were selected and a comparison of the efficiencies of TiO2 Degussa P-25 versus TiO2 Millennium PC500 were estimated. A more important inactivation of E. coli PHL1273 was obtained on TiO2 Millennium PC500, in line with its better adherence on this solid. An experimental study was performed using a dialysis membrane to investigate the impact of the contact between the microorganisms and the photocatalyst and to determine the role of H2O2 generated in situ. In air disinfection, a total inactivation of virus A/H5N2, close to avian influenza virus A/H5N2, was obtained in a single pass in the Buxair(D gas phase dynamic photoreactor using a contaminated air flow rate of 40 m(3)/h.

Domaines

Catalyse

Dates et versions

hal-00474598 , version 1 (20-04-2010)

Identifiants

Citer

C. Guillard, T. H. Bui, C. Felix, V. Moules, B. Lina, et al.. Microbiological disinfection of water and air by photocatalysis. Comptes Rendus. Chimie, 2008, 11 (1-2), pp.107-113. ⟨10.1016/j.crci.2007.06.007⟩. ⟨hal-00474598⟩
46 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More