Dreissena polymorpha is a widespread filter-feeder species, resistant to a broad range of environmental conditions and different types of pollutants, which has recently colonized Italian freshwaters. Although widely used to monitor pollution in freshwater environments, this species is also an important food source for some fish and water birds. It can also be used to concentrate or remove particulate organic matter to interrupt avian-to-human transmission of pollutants and control health risks for animals and humans. In this study, the accumulation/inactivation in D. polymorpha of human health-related spiked enteric viruses was described. The removal of endogenous Escherichia coli, the classical indicator of fecal contamination, was tested as well. Our preliminary lab-scale results demonstrate that zebra mussels can reduce significantly poliovirus titer after 24 h and rotavirus titer after 8 h. E. coli counts were also reduced in the presence of zebra mussels by about 1.5 log after 4 h and nearly completely after 24 h. The fate of the two enteric viruses after concentration by zebra mussels was also investigated after mechanical disruption of the tissues. To our knowledge, the accumulation from water and inactivation of human health-related enteric viruses by zebra mussels has never been reported.
Removal of enteric viruses and Escherichia coli from municipal treated effluent by zebra mussels / V. Mezzanotte, F. Marazzi, M. Bissa, S. Pacchioni, A. Binelli, M. Parolini, S. Magni, F.M. Ruggeri, C. De Giuli Morghen, C. Zanotto, A. Radaelli. - In: SCIENCE OF THE TOTAL ENVIRONMENT. - ISSN 0048-9697. - 539(2016 Jan), pp. 395-400.
|Titolo:||Removal of enteric viruses and Escherichia coli from municipal treated effluent by zebra mussels|
ZANOTTO, CARLO (Penultimo)
RADAELLI, ANTONIA (Ultimo)
|Parole Chiave:||dreissena polymorpha; enteric viruses; escherichia coli; wastewater bioremediation; zebra mussel biofiltration; environmental chemistry; pollution; waste management and disposal; environmental engineering|
|Settore Scientifico Disciplinare:||Settore BIO/07 - Ecologia|
Settore BIO/19 - Microbiologia Generale
|Data di pubblicazione:||gen-2016|
|Data ahead of print / Data di stampa:||12-set-2015|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.scitotenv.2015.09.007|
|Appare nelle tipologie:||01 - Articolo su periodico|
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