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Treatment methods for the removal of per- and polyfluoroalkyl substances (PFASs) from drinking water : optimizing existing and exploring novel treatment techniques

Franke, Vera (2020). Treatment methods for the removal of per- and polyfluoroalkyl substances (PFASs) from drinking water : optimizing existing and exploring novel treatment techniques. Diss. (sammanfattning/summary) Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880
ISBN 978-91-7760-598-0
eISBN 978-91-7760-599-7
[Doctoral thesis]

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Abstract

Worldwide, the demand for safe drinking water is rising. As drinking water sources are increasingly impacted by anthropogenic and environmental changes it is becoming a challenge to produce safe and clean water. The contamination of water with the manmade group of chemical compounds by the name of per- and polyfluoroalkyl substances (PFASs) adds to this challenge. Conventional drinking water treatment is not designed to remove these compounds due to their unique properties and guideline values for allowed concentrations in the final drinking water are low. Thus, there is a need for advanced techniques for the removal of PFASs in drinking water production.
During the course of this thesis, existing treatment methods were optimized and novel methods were developed. Filtration through granular activated carbon (GAC) filters, originally implemented in drinking water treatment for the removal of compounds causing odor and taste, was evaluated in a full-scale drinking water treatment plant and conclusions on the cost-effectiveness were gained by adapting flow-rates and describing several operation scenarios (Paper I). The technique of membrane filtration was studied in pilot-scale and different types of adsorption materials were evaluated for the removal of PFASs from raw water directly versus removal from the membrane concentrate. The adsorption materials GAC and anion exchange both performed better with larger ingoing PFAS concentrations. Filtration through specifically designed anion exchange resins can be an option for membrane concentrate management (Paper II and III).
Electrochemical oxidation and was shown to degrade PFASs in various water types, including membrane concentrate (Paper IV). Further, the commercially available technique heterogeneously catalysed ozonation was applied in pilot-scale to treat contaminated tap water and was observed to remove certain PFASs efficiently (Paper V). This thesis contributes to an increased knowledge on water treatment techniques for the removal of PFASs, providing new insights into water treatment options to protect human health.

Authors/Creators:Franke, Vera
Title:Treatment methods for the removal of per- and polyfluoroalkyl substances (PFASs) from drinking water : optimizing existing and exploring novel treatment techniques
Year of publishing :2020
Number:2020:40
Number of Pages:64
Publisher:Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
ISBN for printed version:978-91-7760-598-0
ISBN for electronic version:978-91-7760-599-7
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Analytical Chemistry
(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Other Environmental Engineering
Keywords:drinking water, per- and polyfluoroalkyl substances, PFAS, granular activated carbon, advanced oxidation processes
URN:NBN:urn:nbn:se:slu:epsilon-p-107689
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107689
ID Code:17535
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:16 Sep 2020 06:34
Metadata Last Modified:16 Sep 2020 06:34

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