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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26788462%3A_____%2F25%3AN0000011" target="_blank" >RIV/26788462:_____/25:N0000011 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26788462:_____/25:N0000012

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S2214714425021105" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S2214714425021105</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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 ·OH scavengers, the combined treatment effectively mitigated radical quenching. Residual chemical oxygen demand (CODCr) after GAC treatment was typically <3 mg/L, indicating effective removal of remaining organic intermediates. Importantly, all treatments preserved wastewater’s oxidative and slightly alkaline character (Eh 368–500 mV; pH 7.44–7.63), maintained major ion composition (Na+, K+, Ca2+, Mg2+, HCO3−, SO42−) and conserved trace element speciation (Fe(OH)3, Mn2+, Zn2+, PbCO3, CrO42−, Ni2+). Cost analysis confirmed that ozone generation dominates operational expenses, whereas secondary UV and GAC contribute minimally. Overall, the results demonstrate robust pharmaceutical removal while maintaining effluent water chemistry, providing new insights for pilot-scale optimization.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 ·OH scavengers, the combined treatment effectively mitigated radical quenching. Residual chemical oxygen demand (CODCr) after GAC treatment was typically <3 mg/L, indicating effective removal of remaining organic intermediates. Importantly, all treatments preserved wastewater’s oxidative and slightly alkaline character (Eh 368–500 mV; pH 7.44–7.63), maintained major ion composition (Na+, K+, Ca2+, Mg2+, HCO3−, SO42−) and conserved trace element speciation (Fe(OH)3, Mn2+, Zn2+, PbCO3, CrO42−, Ni2+). Cost analysis confirmed that ozone generation dominates operational expenses, whereas secondary UV and GAC contribute minimally. Overall, the results demonstrate robust pharmaceutical removal while maintaining effluent water chemistry, providing new insights for pilot-scale optimization.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Water Process Engineering

ISSN

2214-7144

e-ISSN

—

Svazek periodika

80

Číslo periodika v rámci svazku

109037

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

001620122300001

EID výsledku v databázi Scopus

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