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Destruction of Ascaris ova by accelerated electron |
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| Authors: | S Capizzi A Chevallier J Schwartzbrod |
| Institution: | a Laboratoroire de Parasitologie Bacteriologie, Faculté de Pharmacie, WHO Collaborating Centre, UMR Université-CNRS 7564, 5 rue Albert Lebrun, Box 403, 54 001, Nancy, France b Institut de Recherches Subatomiques, UMR CNRS-IN2P3 et Université Louis Pasteur, 23 rue du Loess, 67 037, Strasbourg, France |
| Abstract: | We investigated the efficiency of radiation treatment to destroy Ascaris ova viability and found that no ova were viable after exposure to 0.75 kGy (D90 at 0.39 kGy). Although the outer coat of the Ascaris ovum had a protective effect at low doses (0.20 kGy) no difference in ova viability was observed at 0.30 kGy. As the doses commonly used for sanitary treatment of wastewater are much higher, Ascaris ova should be effectively eliminated from sludge by the 10 kGy dose required by EPA regulations (U.S. EPA, 1993 Federal Register 58, 9248–9415). |
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