Pilot-scale evaluation of UV/O3 oxidation, UV irradiation, and GAC filtration for removal of gabapentin and ibuprofen and impacts on selected physicochemical properties of treated wastewater

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0199720" target="_blank" >RIV/00216305:26110/26:0199720 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2214714425021105#ec0005" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214714425021105#ec0005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jwpe.2025.109037" target="_blank" >10.1016/j.jwpe.2025.109037</a>

Result language
angličtina
Original language name
Pilot-scale evaluation of UV/O3 oxidation, UV irradiation, and GAC filtration for removal of gabapentin and ibuprofen and impacts on selected physicochemical properties of treated wastewater
Original language description
This study evaluates the pilot-scale performance of a combined tertiary wastewater treatment system integrating ozone-based UV oxidation (UV/O3), secondary UV irradiation, and granular activated carbon (GAC) filtration at the Moravský Beroun WWTP. The novelty lies in assessing the influence of high-rate (100 %) internal recirculation on pharmaceutical removal and evaluating treatment effects on wastewater ion composition and trace element speciation. The full treatment sequence (UV/O3 → UV → GAC) achieved >99 % removal of gabapentin (GAB) and ibuprofen (IBU). Standalone UV/O3 removed 69.7 % of GAB and 92.2 % of IBU at the highest ozone dose (16.7 g O3/m3), whereas high-rate recirculation reduced oxidative treatment efficiency (GAB 28.8–36.7 %, IBU 45.4–69.6 %) due to increased pharmaceutical mass flux and lower oxidant availability. Secondary UV irradiation provided an additional 11–40 % removal, and GAC consistently ensured >99 % total removal. Despite high bicarbonate concentrations acting as radical dotOH scavengers, the combined treatment effectively mitigated radical quenching. Residual chemical oxygen demand (CODCr) after GAC treatment was typically
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics

Project
<a href="/en/project/SS07010182" target="_blank" >SS07010182: Evaluation of the significance of the influence of medical facilities on the loading of municipal wastewater treatment plants with micropollutants</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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