TY - JOUR AU - Wojnárovits, László AU - Homlok, Renáta AU - Kovács, Krisztina AU - Tegze, Anna AU - Takács, Erzsébet TI - Wastewater Characterization: Chemical Oxygen Demand or Total Organic Carbon Content Measurement? JF - MOLECULES J2 - MOLECULES VL - 29 PY - 2024 IS - 2 PG - 12 SN - 1420-3049 DO - 10.3390/molecules29020405 UR - https://m2.mtmt.hu/api/publication/34505067 ID - 34505067 LA - English DB - MTMT ER - TY - JOUR AU - Kovács, Mónika AU - Wojnárovits, László AU - Homlok, Renáta AU - Tegze, Anna AU - Mohácsiné Farkas, Csilla AU - Takács, Erzsébet AU - Belák, Ágnes TI - Changes in the behavior of Staphylococcus aureus strains in the presence of oxacillin under the effect of gamma radiation JF - ENVIRONMENTAL POLLUTION J2 - ENVIRON POLLUT VL - 340 PY - 2024 PG - 10 SN - 0269-7491 DO - 10.1016/j.envpol.2023.122843 UR - https://m2.mtmt.hu/api/publication/34399168 ID - 34399168 LA - English DB - MTMT ER - TY - JOUR AU - Dobó, V AU - Homlok, Renáta AU - Mohácsiné Farkas, Csilla AU - Belák, Ágnes TI - Effect of gamma irradiation, high sugar content and antimicrobials on survival of Escherichia coli: A Review JF - CZECH JOURNAL OF FOOD SCIENCES J2 - CZECH J FOOD SCI VL - 41 PY - 2023 IS - 4 SP - 231 EP - 247 PG - 17 SN - 1212-1800 DO - 10.17221/235/2022-CJFS UR - https://m2.mtmt.hu/api/publication/34195685 ID - 34195685 LA - English DB - MTMT ER - TY - JOUR AU - Wojnárovits, László AU - Homlok, Renáta AU - Kovács, Krisztina AU - Bezsenyi, Anikó AU - Takács, Erzsébet TI - Ionizing Radiation Induced Removal of Ofloxacin, Abatement of Its Toxicity and Antibacterial Activity in Various Water Matrices JF - APPLIED SCIENCES-BASEL J2 - APPL SCI-BASEL VL - 13 PY - 2023 IS - 12 PG - 11 SN - 2076-3417 DO - 10.3390/app13127211 UR - https://m2.mtmt.hu/api/publication/34021793 ID - 34021793 LA - English DB - MTMT ER - TY - CONF AU - Homlok, Renáta AU - Kiskó, Gabriella AU - Kovács, András AU - Tóth, Tünde AU - Dobo, V AU - Takács, Erzsébet AU - Mohácsiné Farkas, Csilla AU - Wojnárovits, László AU - Szabó, László TI - Effect of electron beam irradiation and the presence of antibiotics on the population ratio of resistant/sensitive bacterial cultures in model wastewater matrix T2 - Recent Achievement on the Removal of Biohazardous Pollutants by Radiation: Report of the 3rd RCM for CRP F23033 PY - 2022 SP - 27 EP - 35 PG - 9 UR - https://m2.mtmt.hu/api/publication/33108788 ID - 33108788 LA - English DB - MTMT ER - TY - JOUR AU - Wojnárovits, László AU - Wang, JL AU - Chu, LB AU - Tóth, Tünde AU - Kovács, Krisztina AU - Bezsenyi, Anikó AU - Szabó, László AU - Homlok, Renáta AU - Takács, Erzsébet TI - Matrix effect in the hydroxyl radical induced degradation of ß-lactam and tetracycline type antibiotics JF - RADIATION PHYSICS AND CHEMISTRY: THE JOURNAL FOR RADIATION PHYSICS RADIATION CHEMISTRY AND RADIATION PROCESSING J2 - RADIAT PHYS CHEM VL - 193 PY - 2022 PG - 10 SN - 0969-806X DO - 10.1016/j.radphyschem.2022.109980 UR - https://m2.mtmt.hu/api/publication/32632511 ID - 32632511 AB - Due to the spread of antibiotic resistant bacteria, elimination of antibiotics from purified wastewater is a highly important task. Purified wastewater contains large variety of organic/inorganic compounds that strongly influence the efficiency of advanced oxidation processes (AOP). In this work, we investigate the radiation-induced degradation of selected antibiotic contaminants (oxacillin and cloxacillin from the beta-lactams; tetracycline and chlortetracycline from the tetracyclines) in four matrices: pure water, tap water, synthetic wastewater and purified wastewater received from a wastewater treatment plant. Changes in technically important parameters, such as COD, TOC, BOD, OUR, acute toxicity and antibacterial activity, were investigated at 0.1 mmol dm(-3) (40-48 mg dm(-3)) antibiotic concentration. None of the four antibiotics were biodegradable in any of the four matrices, however, after irradiation with relatively low doses the obtained products were biodegradable. Oxacillin and cloxacillin were not toxic in Vibrio fischeri test, while tetracycline and chlortetracycline showed toxicity that was strongly reduced by the irradiation treatment. Both COD and TOC decreased after irradiation, their ratio shifted towards TOC indicating an increase in the average oxidation state (AOS). The increase in AOS was lower in purified wastewater matrices: this matrix may contain various small, highly oxidized molecules in high concentration, which degrade very slowly in AOP. The antibacterial activity in most of matrices was greatly reduced or completely disappeared at around 2-4 kGy. However, in purified wastewater matrices some antibiotic activity remained even at 4 kGy. Here the degradation of antibiotic is slow (small delta COD/dose value) because a large fraction of the reactive radicals is scavenged presumably by small, highly oxidized molecules in the solution. Although the water radiolysis product H2O2 affected some of the bioassays, this phenomenon was absent in purified wastewater. The purified wastewater after ionizing radiation treatment can be safely released into the receiving lakes or rivers. LA - English DB - MTMT ER - TY - JOUR AU - Takács, Erzsébet AU - Wang, J. AU - Chu, L. AU - Tóth, Tünde AU - Kovács, Krisztina AU - Bezsenyi, Anikó AU - Szabó, László AU - Homlok, Renáta AU - Wojnárovits, László TI - Elimination of oxacillin, its toxicity and antibacterial activity by using ionizing radiation JF - CHEMOSPHERE J2 - CHEMOSPHERE VL - 286 PY - 2022 PG - 8 SN - 0045-6535 DO - 10.1016/j.chemosphere.2021.131467 UR - https://m2.mtmt.hu/api/publication/32126916 ID - 32126916 LA - English DB - MTMT ER - TY - CHAP AU - Tegze, Anna AU - Kovács, Krisztina AU - Homlok, Renáta AU - Tóth, Tünde AU - Wojnárovits, László AU - Takács, Erzsébet ED - Jószai, I TI - Vízben oldott fluorokinolon antibiotikumok eltávolítása ionizáló sugárzással T2 - Őszi Radiokémiai Napok 2021 PB - Magyar Kémikusok Egyesülete (MKE) CY - Budapest SN - 9786156018076 PY - 2021 SP - 109 EP - 110 PG - 2 UR - https://m2.mtmt.hu/api/publication/32720606 ID - 32720606 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Homlok, Renáta AU - Kiskó, Gabriella AU - Kovács, András AU - Tóth, Tünde AU - Takács, Erzsébet AU - Mohácsiné Farkas, Csilla AU - Wojnárovits, László AU - Szabó, László TI - Antibiotics in a wastewater matrix at environmentally relevant concentrations affect coexisting resistant/sensitive bacterial cultures with profound impact on advanced oxidation treatment JF - SCIENCE OF THE TOTAL ENVIRONMENT J2 - SCI TOTAL ENVIRON VL - 754 PY - 2021 PG - 11 SN - 0048-9697 DO - 10.1016/j.scitotenv.2020.142181 UR - https://m2.mtmt.hu/api/publication/31799700 ID - 31799700 LA - English DB - MTMT ER - TY - CONF AU - Homlok, Renáta AU - Kocsis, Tamás AU - Kovács, Krisztina AU - Kiskó, Gabriella AU - Tóth, Tünde AU - Takács, Erzsébet AU - Mohácsiné Farkas, Csilla AU - Wojnárovits, László AU - Szabó, László TI - Preventing the development of antibiotic resistance in wastewater matrices by high energy irradiation T2 - REPORT OF THE 2ND RESEARCH COORDINATION MEETING PY - 2020 SP - 85 EP - 92 PG - 8 UR - https://m2.mtmt.hu/api/publication/33108798 ID - 33108798 LA - English DB - MTMT ER -