A5074877775- Advanced oxidation water treatment
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced Photocatalysis Techniques
- Water Quality Monitoring and Analysis
- Radiation Effects and Dosimetry
- Electrochemical Analysis and Applications
- Photochemistry and Electron Transfer Studies
- Free Radicals and Antioxidants
- bioluminescence and chemiluminescence research
- Radioactive element chemistry and processing
- Water Treatment and Disinfection
- Listeria monocytogenes in Food Safety
- Luminescence Properties of Advanced Materials
- Radical Photochemical Reactions
- Radioactive contamination and transfer
- TiO2 Photocatalysis and Solar Cells
- Water Quality Monitoring Technologies
- Biosensors and Analytical Detection
- Innovations in Concrete and Construction Materials
- Epoxy Resin Curing Processes
- Innovative Microfluidic and Catalytic Techniques Innovation
- Bacterial Identification and Susceptibility Testing
- Polymer composites and self-healing
- Fiber-reinforced polymer composites
- Molecular Biology Techniques and Applications
HUN-REN Centre for Energy Research
2013-2025
Hungarian Academy of Sciences
2010-2018
The long time (2 h) required for measurement, expensive chemicals (Ag2SO4), and toxic reagents (K2Cr2O7, HgSO4) limit the application of standard method measuring oxygen equivalent organic content in wastewater (chemical demand, COD). In recent years, COD has increasingly been replaced by total carbon (TOC) parameter. Since values pollution levels are usually given terms COD, efforts being made to find correlation between these parameters. Several papers have published analyses TOC...
Background/Objectives: Antibiotic-resistant bacteria are becoming a major challenge in human and veterinary medicine, as well food processing. Methods: In this study, the protein diversity antibiotic-sensitive -resistant strains of Staphylococcus aureus Escherichia coli was investigated by exposing them to varying doses gamma irradiation, with without antibiotic presence. Changes bacterial profiles were characterized using MALDI-TOF MS reveal dose-dependent adaptations potentiation effects...
The reactions of hydrogen atoms and hydroxyl radicals with benzene 10 monosubstituted benzenes were investigated by measuring transient absorption spectra, calculating Gibbs free energies, spectra intermediates formed determining the rate constants H reactions. basic reaction is addition to aromatic ring forming cyclohexadienyl type radicals. Most radical exhibit maxima in 300–340 nm range, these for molecules strong electron withdrawing groups are shifted 340–420 nm. OH adducts similar...
Due to the spread of antibiotic resistant bacteria, elimination antibiotics from purified wastewater is a highly important task. Purified contains large variety organic/inorganic compounds that strongly influence efficiency advanced oxidation processes (AOP). In this work, we investigate radiation-induced degradation selected contaminants (oxacillin and cloxacillin β-lactams; tetracycline chlortetracycline tetracyclines) in four matrices: pure water, tap synthetic received treatment plant....
Abstract In advanced oxidation processes, the hydroxyl radical is main initiator of degradation pollutants. For aromatic molecules, rate coefficients are between 2×10 9 and 1×10 10 mol −1 dm 3 s show some variation according to electron‐withdrawing or donating nature substituents. The one‐electron oxidant . OH induces 2–4 electron oxidations many These high rates explained by addition an unsaturated bond, scavenging organic dissolved O 2 , subsequent reactions. amino‐substituted molecules in...
In this study, we examined the chemical changes occurring in ground tire rubber (GTR) and on its surface as a result of gamma irradiation water, with low doses 5, 10, 15, 20, 25, 30 kGy. To better distinguish radiation caused GTR activation by irradiated also performed treatments an inert atmosphere. We mixed treated GTRs fresh rubber, after vulcanization, investigated mechanical properties conducted dose optimization. The were characterized Soxhlet-extraction cross-link density...
Subinhibitory levels of antibiotics in reservoirs highly affected by anthropogenic activity, e.g., wastewater treatment plants, have a profound impact on the development and spread resistant bacteria biosphere. As an aid, advanced oxidation processes (AOPs) been suggested to eliminate antibacterial activity several antibiotics, this has followed using conventional antibiotic susceptibility tests. While can hardly be monitored below minimum inhibitory concentration (MIC) with these assays,...
The fluoroquinolone-type antibiotic ofloxacin is regularly detected in wastewaters. In this work, its hydroxyl radical (•OH) induced degradation was studied at a concentration of 0.1 mmol dm−3 three water matrices, pure water, tap and purified wastewater (collected from treatment plant). •OH produced by γ-irradiation under conditions when it had high yield. dosage dependencies chemical (COD) biochemical (BOD) oxygen demands, total organic carbon (TOC) content, uptake rate (OUR), Microtox®...
Staphylococcus aureus (S. aureus) as a major pathogen is implicated in wide range of foodborne and hospital-acquired infections, its methicillin resistant variants contribute to the spread β-lactam antibiotics resistance. It essentially important destroy these pathogens, their genes wastewaters. For this purpose reactions reactive radicals (advanced oxidation processes), first all hydroxyl (•OH), are suggested. Here radiolysis water supplied radicals. In experiments B.01755 oxacillin...
The response of the antimicrobial compounds sulfamethoxazole (SMX) and trimethoprim (TMP) - individually in mixtures to ionizing radiation was investigated using laboratory prepared a commercial pharmaceutical formulation. residual antibacterial activity solutions monitored Staphylococcus aureus Escherichia coli test strains. Based on activity, SMX more susceptible as compared TMP. TMP completely eliminated at 0.2 kGy 0.8 kGy, respectively. However, when were mixture, dose required eliminate...
In most of advanced oxidation processes (AOPs) used to destroy harmful organic chemicals in water/wastewater hydroxyl radical (
Abstract Review: [53 refs.