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MSc. Robert Kvacek

Thesis topic:

Drinking Water Treatment by Nanofiltration

Motivation

Pressure-driven membrane processes (microfiltration, ultrafiltration, and nanofiltration) used in water technology differ in the principles of separation. Therefore, each of them separates a unique size fraction of organic compounds. One of the smallest fractions is known as the micropollutants. They comprise pesticides, pharmaceutical, and personal care product, their metabolites, and many others. Pesticides and their metabolites limits in potable water have already been added to the legal framework in Czechia. Regarding that, water treatment plants are being equipped with a special separation level for micropollutants removal with nanofiltration being one of the best-performing choices. Its high micropollutants elimination efficiency is accompanied by undesirable bivalent ions removal. The separation efficiency is mostly affected by the nanofiltration membrane type. A similar membrane-type effect on the separation efficiency is observed during ultrafiltration which separates macromolecular organic compounds according to their nature. By collecting detailed knowledge of the organic compounds in the treated water, it would be easier to choose the correct membrane type and therefore design the ideal technology.

Solution

I will utilize both my academic and operational knowledge of pressure-driven membrane processes used in water technology, primarily focusing on nanofiltration and ultrafiltration. The aim of this thesis is to study these processes based on both operation data and my own laboratory work focused on the fractionation of organic compounds in treated water. As a result, I will present a comprehensive evaluation of these processes from economical and operational points of view. I will also work on the qualitative analysis of organic compounds methodology which could be useful for the new technology applications design. As a part of this methodology, I will study the micropollutants and bivalent ions removal from treated water by selected processes.

Education

2022 - present: Doctor’s degree, FET, UCT Prague
Environmental Chemistry and Technology programme
2020 – 2022: Master‘s degree, FET, UCT Prague
Water Technology programme
Master’s thesis: „Impact of nanofiltration on water ionic composition and its stability“
2017 – 2020: Bachelor’s degree, FET, UCT Prague
Environmental Technology programme.
Bachelor’s thesis: „Qualitative analysis of microplastics in water by staining method“

Participation on teaching

Laboratory Course in Water Technology (Oxygen Transfer Rate)
Laboratory Course in Water Analysis

Publications

Articles:

Kvaček, R.; Šmejkalová, P.; Hermanová, S. Zavádění analytické metody pro kvalitativní stanovení mikroplastů ve vodách. ENTECHO 2020, 3, 1-6.
Nováková, Z.; Zuzáková, J.; Sýkora, P.; Srb, M.; Kvaček, R. Výzkumné projekty jako významná součást inovací ve vodním hospodářství. SOVAK Časopis oboru vodovodů a kanalizací 2020, 29 (10), 24–28.

Updated: 27.2.2023 09:51, Author: Lucie Pokorná

Information

Supervisor:
prof. Ing. Václav Janda, CSc.

Year of inscription:
2022

E-mail:
kvacekr@vscht.cz

Phone:
+420 220 443 144

Room:
B 105

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