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  1. Virus inactivation during disinfection of wastewater by chlorination and UV irradiation and the efficacy of F+bacteriophage as a'viral indicator.

    Article, Communication - En anglais

    IAWQ international symposium on health-related water microbiology. Mallorca (ESP), 1996/10/06.

    Wastewater disinfection has grown in popularity in recent years in the UK particularly for reducing faecal coliform levels in effluents impacting on bathing waters not compliant with EC Directive standards.

    Although disinfectants appear effective against bacterial indicators of faecal pollution, their efficiency against human viruses is still unclear.

    This has significance both for attainment of compliance with viral standards in the EC Bathing Waters Directive and, potentially, for protection against viruses likely to cause gastroenteritis.

    This study reports on bench scale disinfection of primary effluent treated with chlorination and secondary effluent treated with UV.

    Disinfection experiments comprised of wastewater, sterilised by gamma irradiation, seeded with monodispersed laboratory grown bacterial indicators (Escherichia coli and Enterococcus faecalis), human enterovirus (poliovirus) and F+bacteriophage (MS2) - a potential'viral indicator'Under the experimental conditions used, the inactivation of bacterial indicators was rapid in comparison to the inactivation of F+bacteriophage which was very poor.

    Seeded poliovirus was significantly more susceptible to inactivation by chlorine and UV irradiation than F+bacteriophage but was more resistant than bacterial indicators in both cases. (...)

    Mots-clés Pascal : Epuration eau usée, Désinfection, Chloration, Irradiation UV, Virus, Inactivation, Indicateur biologique, Bactériophage, Poliovirus 1, Enterovirus, Picornaviridae, Escherichia coli, Enterobacteriaceae, Bactérie, Enterococcus faecalis, Streptococcaceae, Micrococcales

    Mots-clés Pascal anglais : Waste water purification, Disinfection, Chlorination, Ultraviolet irradiation, Virus, Inactivation, Biological indicator, Phage, Poliovirus 1, Enterovirus, Picornaviridae, Escherichia coli, Enterobacteriaceae, Bacteria, Enterococcus faecalis, Streptococcaceae, Micrococcales

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 97-0485251

    Code Inist : 001D16A05A. Création : 03/02/1998.