Počet záznamů: 1
Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment
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SYSNO ASEP 0560376 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV O - Ostatní Název Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment Tvůrce(i) Prokopová, Michaela (UH-J) ORCID, RID, SAI
Fialová, Kateřina (UH-J) ORCID, SAI, RID
Čermáková, Lenka (UH-J) RID, ORCID, SAI
Semerád, Jaroslav (MBU-M) ORCID, RID
Pivokonský, Martin (UH-J) SAI, ORCID, RIDZdroj.dok. Proceedings Water safety conference 2022. - Narvik : IWA, 2022 Poč.str. 2 s. Forma vydání Online - E Akce The 2022 IWA International conference for water safety Datum konání 22.06.2022 - 24.06.2022 Místo konání Narvik Země NO - Norsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NO - Norsko Klíč. slova perfluorinated organic substances ; polyfluorinated organic substances ; coagulation ; floccutalion ; drinking water Vědní obor RIV DJ - Znečištění a kontrola vody Obor OECD Environmental sciences (social aspects to be 5.7) Vědní obor RIV – spolupráce Mikrobiologický ústav - Hydrologie a limnologie Institucionální podpora UH-J - RVO:67985874 ; MBU-M - RVO:61388971 Anotace A group of pollutants denoted as per- and polyfluoroalkyl substances (PFAS), that were detected in both surface and groundwater, currently comprises more than 4,700 identified compounds (Lim, 2019). Their structure consists of a per- or polyfluorinated hydrocarbon chain forming the hydrophobic part of the molecule and a functional group that forms a hydrophilic part. Depending on the type of a functional group, PFAS can be divided into sulfonates, carboxylates, sulfonamides, phosphonates, acrylates, acetates and other minor groups. These substances are nowadays ubiquitous in the environment. In general, they are considered highly persistent in nature. However, under suitable environmental conditions, some of them may degrade due to the presence of highly polar functional groups. The intermediates or final products of the first degradation step are less or non-polar. These are not readily (bio) degradable and can accumulate in the environment. Current technologies are not able to remove PFAS from drinking water efficiently (Rahman et al., 2014). This work investigates coagulation/flocculation of selected PFAS (perfluorooctanoic acid – PFOA, perfluorooctane sulfonate – PFOS, pentafluorobenzoic acid – PFBA, perfluorobutane sulfonate – PFBS) with an aim to optimize the process for maximum PFAS removal and to describe the coagulation mechanisms. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2023
Počet záznamů: 1