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Ozonation of amoxicillin and ciprofloxacin in model hospital wastewater to increase biotreatability
ID Aleksić, Severina (Avtor), ID Žgajnar Gotvajn, Andreja (Avtor), ID Premzl, Katarina (Avtor), ID Kolar, Mitja (Avtor), ID Šostar-Turk, Sonja (Avtor)

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Izvleček
Amoxicillin (AMX) and Ciprofloxacin (CIP) are antibiotics commonly used in human medicine with high environmental toxicity and poor biodegradability. They have been found in various hospital effluents and groundwater, and their environmental impact is still not fully understood. In this work, we investigated the possibility of treating model wastewaters containing the antibiotics AMX and CIP using ozonation, with the addition of H$_2$O$_2$ under various conditions, including different pH values, H$_2$O$_2$, and ozone dosages. The quantification of and treatment efficacy for antibiotic removal were determined via solid phase extraction followed by chromatographic separation by liquid chromatography coupled with tandem triple quadrupole mass spectrometry (LC/MS/MS). This analytical system is quite efficient for the detection of all major antibiotic classes, even if they are present at very low concentrations. The efficiency of ozonation was determined by measuring the TOC (Total Organic Carbon) changes after ozonation of the model wastewater and by measuring the concentration of the two antibiotics. In a sequential activated sludge process of ozone-treated model wastewater, almost complete TOC removal and an overwhelming decrease in antibiotic concentrations (up to 99%) were observed. Ozonation resulted in complete removal of AMX and CIP in less than 30 and 120 min, respectively. The results of this work indicate that ozonation could be a suitable pretreatment method to reduce the toxicity of contaminants (AMX and CIP) and improve the biodegradability of hospital wastewater.

Jezik:Angleški jezik
Ključne besede:antibiotics, amoxicillin (AMX), ciprofloxacin (CIP), hospital wastewater, hydrogen peroxide, ozone, water treatment, sludge, treatment
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2021
Št. strani:13 str.
Številčenje:Vol. 10, iss. 11, art. 1407
PID:20.500.12556/RUL-136370 Povezava se odpre v novem oknu
UDK:628.349:66.094.3-926.214:615.33
ISSN pri članku:2079-6382
DOI:10.3390/antibiotics10111407 Povezava se odpre v novem oknu
COBISS.SI-ID:85418243 Povezava se odpre v novem oknu
Datum objave v RUL:26.04.2022
Število ogledov:717
Število prenosov:124
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Antibiotics
Skrajšan naslov:Antibiotics
Založnik:MDPI
ISSN:2079-6382
COBISS.SI-ID:522975769 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:17.11.2021

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:antibiotiki, amoksicilin, ciprofloksacin, bolnišnične odpadne vode, ozon, vodikov peroksid, čiščenje vod

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:1604-003

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0118
Naslov:Tekstilna kemija

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0191
Naslov:Kemijsko inženirstvo

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P1-0153
Naslov:Raziskave in razvoj analiznih metod in postopkov

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