Chemistry of persulfates in water and wastewater treatment: a review

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dc.contributor.authorWaclawek Stanislawcs
dc.contributor.authorLutze Holgercs
dc.contributor.authorGrübel Klaudiuszcs
dc.contributor.authorVellora Thekkae Padil Vinodcs
dc.contributor.authorČerník Miroslavcs
dc.contributor.authorDionysiou Dionysioscs
dc.date.accessioned2018-09-25T12:10:47Z
dc.date.available2018-09-25T12:10:47Z
dc.date.issued2017cs
dc.description.abstractPersulfate decontamination technologies either utilizing radical driven processes or direct electron transfer are very powerful tools for the treatment of a broad range of impurities, including halogenated olefins, BTEXs (benzene, toluene, ethylbenzene and xylenes), perfluorinated chemicals, phenols, pharmaceuticals, inorganics and pesticides. Furthermore, the reactivity of persulfates is extremely dependent on the related activation techniques and the composition of the treated water matrix. Direct reactions of peroxydisulfate (PDS) or peroxymonosulfate (PMS) are rather slow and mostly unsuitable for pollutant degradation. However, PDS or PMS decompose at elevated temperatures under UV radiation, and radiolysis treatment as well as in presence of reduced metal ions to form sulfate radicals (SO4−). (SO4−)-based oxidation can also form secondary oxidants for instance carbonate radicals, hydroxyl radicals, superoxide radicals or singlet oxygen which can influence both transformation efficiency and product formation. The formation of such species is extremely subjected on the water matrix composition and can hardly be predicted. One important aspect in dealing with PDS or PMS is their analysis, which is often prone for interference by other matrix components and hampered by the low stability of PDS and PMS in aqueous systems. Numerous methods for analysis of PDS and PMS are available. The present work also provides an overview on these methods.
dc.format.extent19cs
dc.identifier.doi10.1016/j.cej.2017.07.132
dc.identifier.issn1385-8947cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/30708
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1385894717312718
dc.language.isoengcs
dc.relation.ispartofseries1cs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S1385894717312718cs
dc.subjectPersulfatescs
dc.subjectPeroxydisulfatecs
dc.subjectPeroxymonosulfatecs
dc.subjectRemediationcs
dc.subjectOxidationcs
dc.subjectSulfate radicalcs
dc.titleChemistry of persulfates in water and wastewater treatment: a reviewcs
local.citation.epage44-62cs
local.citation.spage44-62cs
local.identifier.publikace4158
local.identifier.wok414083300005en
local.relation.issue15 Decembercs
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