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dc.contributor.authorComber, Sean
dc.contributor.authorGardner, MJ
dc.contributor.authorEllor, B
dc.date.accessioned2021-08-09T10:23:06Z
dc.date.issued2021-05-01
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.other145434
dc.identifier.urihttp://hdl.handle.net/10026.1/17434
dc.description.abstract

Iron dosing for phosphorus reduction during wastewater treatment is wide practised across the globe. However, the impacts of this dosing in terms of the speciation of phosphorus discharged and secondary effects on removing or introducing other trace elements from or into the effluent have not been studied. Results are presented for concentrations of a range of contaminants in over 600 wastewater treatment works, reported as mean concentration values derived from 20 effluent samples taken over a period of two years. Approximately half of the treatment works employed iron dosing to reduce concentrations of phosphorus in effluents. In addition to the expected effects on level of phosphorus discharged to surface waters, it is shown that these measures are shown to have unintended and beneficial consequences for concentrations of several other constituents of wastewater. Reductions of more than 40% in the concentrations of dissolved metals (copper, lead) benzo(a)pyrene and hexabromocyclododecane are observed. Lower but still significant decreases in concentration (>30%) are evident for dissolved cadmium, fluoranthene cypermethrin and biochemical oxygen demand. Small but less environmentally important increases are seen for iron and nickel, in the case of the latter this is presumably because nickel is a contaminant of the iron reagent used for dosing. These reductions are shown to offer significant benefits in terms of levels entering surface waters relating to the in-river environmental quality standards.

dc.format.extent145434-145434
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherElsevier BV
dc.subjectEffluents
dc.subjectIron dosing
dc.subjectPhosphorus
dc.subjectPriority chemicals
dc.subjectTrace elements
dc.subjectWastewater treatment works
dc.titleEffects of iron dosing used for phosphorus removal at wastewater treatment works; impacts on forms of phosphorus discharged and secondary effects on concentrations and fate of other contaminants
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/33550053
plymouth.volume767
plymouth.publication-statusPublished
plymouth.journalScience of The Total Environment
dc.identifier.doi10.1016/j.scitotenv.2021.145434
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/BEACh
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeNetherlands
dcterms.dateAccepted2021-01-22
dc.rights.embargodate2022-1-28
dc.identifier.eissn1879-1026
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.scitotenv.2021.145434
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-05-01
rioxxterms.typeJournal Article/Review


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