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dc.contributor.authorEllis Sen
dc.contributor.authorTyrrel Sen
dc.contributor.authorO'Leary Een
dc.contributor.authorRichards Ken
dc.contributor.authorGriffiths BSen
dc.contributor.authorRitz Ken
dc.date.accessioned2018-01-30T12:35:43Z
dc.date.available2018-01-30T12:35:43Z
dc.date.issued2018
dc.identifier.citation46:4 1800042
dc.identifier.issn1863-0650
dc.identifier.urihttps://doi.org/10.1002/clen.201800042
dc.identifier.urihttp://hdl.handle.net/11262/11385
dc.description.abstractThe survival of enteric pathogens in sewage sludge could lead to their transferral into the soil environment and subsequent contamination of crops and water courses. This, in turn, could increase the potential spread of gastrointestinal disease. This work aimed to determine the persistence of several microorganisms, co-introduced with sewage sludge, when exposed to varying proportions of sewage sludge to soil. Three microcosm-based studies were established, inoculated with Salmonella Dublin or an environmentally-persistent strain of Escherichia coli (quantified periodically over a period of 42 days), or indigenous sewage sludge E. coli (quantified over a period of 56 days). Treatments consisted of a mixture containing: 0, 15, 25, 50, 75 and 100% soil or sludge, depending upon the experiment. Each introduced microorganism declined significantly over time, with greater quantities of soil generally instigating greater die-off particularly in the cases of environmentally-persistent E. coli and S. Dublin. However, this relationship was not proportionally related as sludge/soil mixtures showed greater declines than pure soil treatments. In contrast, indigenous sewage sludge E. coli had a more consistent decline across all treatments. This may indicate that indigenous strains are more resilient and may be indicative of natural behaviour. Moreover, the effects of soil-borne factors on pathogen attenuation were context dependent and non-linear, possibly arising from the relative spatial distribution of introduced sludge and attendant microbes in soil.en
dc.description.sponsorshipScottish Government RESAS Strategic Research Programme (RD2.3.4)en
dc.language.isoenen
dc.relation.isformatof14768en
dc.relation.ispartofCLEAN - Soil, Air, Wateren
dc.rightsCopyright © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the above article, which has been published in final form at https://doi.org/10.1002/clen.201800042
dc.subjectEnteric pathogensen
dc.subjectPersistenceen
dc.subjectSewage sludgeen
dc.subjectSoilen
dc.titleProportion of sewage sludge to soil influences the survival of Salmonella Dublin and Escherichia colien
dc.typeArticleen
dc.description.versionAccepted manuscript
dc.extent.pageNumbers1-7
rioxxterms.publicationdate2018-01-27
rioxxterms.typeJournal Article/Reviewen
dcterms.dateAccepted2018-01-23
refterms.accessExceptionNAen
refterms.dateDeposit2018-01-30
refterms.dateEmbargoEnd2019-01-27
refterms.dateFreeToDownload2019-01-27
refterms.dateFreeToRead2019-01-27
refterms.dateToSearch2019-01-27
refterms.depositExceptionNAen
refterms.panelUnspecifieden
refterms.technicalExceptionNAen
refterms.versionAMen


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