Number of the records: 1
Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment
- 1.
SYSNO ASEP 0560376 Document Type C - Proceedings Paper (int. conf.) R&D Document Type O - Ostatní Title Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment Author(s) 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, RIDSource Title Proceedings Water safety conference 2022. - Narvik : IWA, 2022 Number of pages 2 s. Publication form Online - E Action The 2022 IWA International conference for water safety Event date 22.06.2022 - 24.06.2022 VEvent location Narvik Country NO - Norway Event type WRD Language eng - English Country NO - Norway Keywords perfluorinated organic substances ; polyfluorinated organic substances ; coagulation ; floccutalion ; drinking water Subject RIV DJ - Water Pollution ; Quality OECD category Environmental sciences (social aspects to be 5.7) Subject RIV - cooperation Institute of Microbiology - Hydrology ; Limnology Institutional support UH-J - RVO:67985874 ; MBU-M - RVO:61388971 Annotation 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. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2023
Number of the records: 1