Micropollutants removal from filtered raw river water in artificial infiltration/quaternary sediments-based waterworks

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25006096%3A_____%2F23%3AN0000011" target="_blank" >RIV/25006096:_____/23:N0000011 - isvavai.cz</a>
Result on the web
<a href="https://iwa-network.org/events/let-2023/" target="_blank" >https://iwa-network.org/events/let-2023/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Micropollutants removal from filtered raw river water in artificial infiltration/quaternary sediments-based waterworks
Original language description
Karany waterworks, the water supplier for the city of Prague, uses an artificial infiltration of raw Jizera river water into quaternary sediments, where the water naturally achieves drinking water quality. Unfortunately, similarly as in other developed countries, trace concentrations of various micropollutants have been observed in the raw river water. Since the waterworks operates only sand filtration of the water before the infiltration, there is no simple method for removing the traces of micropollutants for the elimination of them from the water and protection of the valuable quaternary sediments. Thus, the only way is to convert a suitable number of sand filters onto activated carbon filters in the existing technology. In order to examine this solution, test columns with identical hydraulic parameters were installed beside the existing sand filters. The columns were filled with 3 types of granular activated carbons (GAC) and have been operating in the same mode as the main sand filters, including shut-down periods depending on raw water quality. Although it was expected that the GAC will be saturated in a short time, it serves for 1,5 years and still removes about 70 – 80 % of micropollutants from the water before infiltration.
Czech name
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Czech description
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Project
<a href="/en/project/SS01020063" target="_blank" >SS01020063: Residual xenobiotics reduction in fresh water under specific conditions of waterworks Káraný</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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