Publikation:
Pool water disinfection by ozone-bromine treatment: Assessing the disinfectant efficacy and the occurrence and in vitro toxicity of brominated disinfection by-products

Kurzanzeige
dc.contributor.authorEl-Athman, Fatima
dc.contributor.authorJunek, Ralf
dc.contributor.authorKämpfe, Alexander David
dc.contributor.authorMahringer, Daniel
dc.contributor.authorSelinka, Hans-Christoph
dc.contributor.authorZehlike, Lisa
dc.contributor.otherGrunert, Andreas
dc.date.accessioned2024-06-16T13:34:57Z
dc.date.available2024-06-16T13:34:57Z
dc.date.issued2021
dc.description.abstractPool water is continuously circulated and reused after an extensive treatment including disinfection by chlorination, ozonation or UV treatment. In Germany, these methods are regulated by DIN standard 19643. Recently, the DIN standard has been extended by a new disinfection method using hypobromous acid as disinfectant formed by introducing ozone into water with naturally or artificially high bromide content during water treatment. In this study, we tested the disinfection efficacy of the ozone-bromine treatment in comparison to hypochlorous acid in a flow-through test rig using the bacterial indicator strains Escherichia coli, Enterococcus faecium, Pseudomonas aeruginosa, and Staphylococcus aureus and the viral indicators phage MS2 and phage PRD1. Furthermore, the formation of disinfection by-products and their potential toxic effects were investigated in eight pool water samples using different disinfection methods including the ozone-bromine treatment. Our results show that the efficacy of hypobromous acid, depending on its concentration and the tested organism, is comparable to that of hypochlorous acid. Hypobromous acid was effective against five of six tested indicator organisms. However, using Pseudomonas aeruginosa and drinking water as test water, both tested disinfectants (0.6 mg L-1 as Cl2 hypobromous acid as well as 0.3 mg L-1 as Cl2 hypochlorous acid) did not achieve a reduction of four log10 levels within 30 s, as required by DIN 19643. The formation of brominated disinfection by-products depends primarily on the bromide concentration of the filling water, with the treatment method having a smaller effect. The eight pool water samples did not show critical values in vitro for acute cytotoxicity or genotoxicity in the applied assays. In real pool water samples, the acute toxicological potential was not higher than for conventional disinfection methods. However, for a final assessment of toxicity, all single substance toxicities of known DBPs present in pool water treated by the ozone-bromine treatment have to be analyzed additionally. © 2021 The Authorsen
dc.format.extent1 Onlineresource (9 pages)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-2077
dc.identifier.urihttps://openumwelt.de/handle/123456789/3305
dc.language.isoger
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectZytotoxizität
dc.subjectGenotoxizität
dc.titlePool water disinfection by ozone-bromine treatment: Assessing the disinfectant efficacy and the occurrence and in vitro toxicity of brominated disinfection by-products
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleWater Research
local.bibliographicCitation.originalDOI10.1016/j.watres.2021.117648
local.bibliographicCitation.volume204 (2021)
local.collectionAufsätze
local.contributor.authorId(DE-588)1205745815
local.contributor.otherId(DE-588)1069857696
local.contributor.otherId02136298
local.identifier.catalogId02486400
local.ingest.leader07256naa a2200000uu 4500
local.jointTitlePOOL WATER DISINFECTION BY OZONEBROMINE TREATMENT ASSESSING THE DISINFECTANT EFFICACY AND THE OCCURRENCE AND IN VITRO TOXICITY OF BROMINATED DISINFECTION BYPRODUCTS
local.reviewtrue
local.sourcecatalog
local.staffPublicationtrue
relation.isAuthorOfPublication10e92bef-b820-40cc-8ddf-be00dc3f31e7
relation.isAuthorOfPublicationb756ffc2-87ad-44ec-80cf-789b3cdce7cd
relation.isAuthorOfPublicationcddf45bc-0404-4c73-b2cb-b06e1599ff23
relation.isAuthorOfPublicationfba58f27-54f7-4850-bd01-9fe404bb8237
relation.isAuthorOfPublication531388f6-9b2f-463e-8980-cbdb7292771b
relation.isAuthorOfPublication13123df9-8e2e-4714-a6b4-c78e9d2827cb
relation.isAuthorOfPublication.latestForDiscovery10e92bef-b820-40cc-8ddf-be00dc3f31e7
Dateien
Sammlungen
Aufsätze