Session 28 - Emerging pollutants

[CEST2019_00922] Development and application of methods for the determination of pesticide residues in natural waters and sediments, coupled to GC-MS
by Kapsi M., Sakkas V., Albanis T.

The main objectives of this study were to develop rapid and accurate screening multiresidue pesticide methods on the basis of Solid-Phase Extraction (SPE) technique for the determination of 10 pesticides in water samples and on the basis of QuEChERS technique regarding sediments samples. The target compounds were determined by Gas Chromatography-Mass Spectrometry (GC-MS). The method was validated in terms of accuracy, precision, linearity, detection and quantification limits.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:33 to 13:36
Flash presentation in Emerging pollutants
[CEST2019_00682] A nine-year study on the temporal changes of licit and illicit drug use patterns as revealed from the chemical analysis of influent wastewater from the wastewater treatment plant of Athens
by Galani K., Alygizakis N.A., Borova V., Thomaidis N.S.

Daily flow-proportional composite influent wastewater was collected from the Wastewater Treatment Plant (WWTP) in Athens during a nine-year sampling campaign (2010-2019). Analytes in influent wastewater are markers of the consumption and the exposure of the chemicals in the population. Wastewater samples were cleaned up and enriched 200 times using a generic solid phase extraction protocol based on a mixture of four sorbent materials capable of retaining a wide-range of analytes.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:30 to 13:33
Flash presentation in Emerging pollutants
[CEST2019_00631] Biodegradation of pharmaceuticals by bacteria isolated from estuarine environment - cleanup technologies through nature-based processes
by Fernandes J.P., Duarte P., Almeida C.M.R., Carvalho M.F. ,Mucha A.P.

New sustainable technologies are needed to tackle pharmaceuticals contamination in different environmental compartments. Bioremediation technology, using native microorganisms with capacity for partial or complete elimination of contaminants, can be considered. This work investigated the capability of different bacterial strains to biodegrade paroxetine and bezafibrate, either as a bacterial consortium or as a single strain.

Session: 28, Room: D, at Fri, 09/06/2019 - 12:30 to 12:45
Oral presentation in Emerging pollutants
[CEST2019_00542] Magnetic solid-phase extraction of pesticides in environmental water samples using Fe3O4@SiO2@C18 nanoparticles coupled to GC-MS determination
by Kapsi M., Sakkas V., Albanis T.

A rapid magnetic solid-phase extraction (MSPE) method coupled to Gas Chromatography-Mass Spectrometry (GC-MS) was developed for the simultaneous extraction of ten pesticides belonging to various categories (insecticides, herbicides and fungicides) in environmental water samples. The magnetic Fe3O4@SiO2@C18 nanoparticles were synthesized by coprecipitation of Fe2+ and Fe3+ ions, at alkaline conditions, under hydrothermal treatmentand andused as adsorbents of MSPE.

Session: 28, Room: D, at Fri, 09/06/2019 - 12:45 to 13:00
Oral presentation in Emerging pollutants
[CEST2019_00550] Liquid chromatography coupled to high-resolution-Orbitrap mass spectrometry for the determination of nitrofuran metabolites in fish samples
by Trantopoulos E., Kosma C., Karkabounas A., Boti V., Albanis T.

Nitrofurans (NFs) are synthetic antibiotic drugs employed for the treatment of bacterial diseases in livestock production or as food additives in industrial farming of food-producing animals. The most widely used NFs in veterinary medicine are nitrofurantoin (NFT), furazolidone (FZD), nitrofurazone (NFZ) and furaltadone (FTD).

Session: 28, Room: D, at Fri, 09/06/2019 - 13:36 to 13:39
Flash presentation in Emerging pollutants
[CEST2019_00522] Determination of pharmaceutical residues in natural waters using high performance liquid chromatography coupled to quadrupole-Orbitrap mass spectrometry
by Kifokeri D., Nannou C., Boti V., Albanis T.

The presence of residual pharmaceuticals in the aquatic environment is an important environmental issue. Since the drugs are designed to cause biological responses, they could pose a risk to organisms in their natural environment. In this study, the presence of selected pharmaceutical compounds (paracetamol, phenazone, ketoprofen, budensonide and atenolol) in surface waters was studied. Six sampling points along the aquatic system of the River Louros, close to the city of Ioannina (Epirus, NW Greece), were selected for the assessment of their pollutant load.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:24 to 13:27
Flash presentation in Emerging pollutants
[CEST2019_00376] Evaluation of innovative water treatments at molecular level based on high resolution mass spectrometry and advanced statistical analysis tools
by Gago-Ferrero P., Alygizakis N.A., Velo-Gala I., Sbardella L., Gernjak W., Petrovic M.

This work aims at integrating the last advances in high resolution mass spectrometry (HRMS) and statistical analysis of data to develop and optimize a smart methodology (workflow) for the assessment of the performance of innovative water treatments using different technological approaches based on advanced oxidation processes with UV-254nm: (i) UV/K2S2O8, where oxidation takes place mainly following the initial formation of sulfate radicals, (ii) UV/KHSO5, where oxidation begins with the formation of both sulfate and hydroxyl radicals and (iii) UV/H2O2, when only the formation of hydroxyl

Session: 28, Room: D, at Fri, 09/06/2019 - 12:00 to 12:15
Oral presentation in Emerging pollutants
[CEST2019_00379] Analysis of degradation of the micro pollutant amoxicillin by photolysis and evaluation of the degradation products.
by Hoehne L., Vettorello G., Ethur E.M., Kuhn D., De Freitas E.M., Steffens C.

Emerging micro pollutants are substances that have recently been identified in environmental matrices, of which information on environmental permanence and toxicity is still scarce. Due to their chemical structure, antibiotics are more stable and require more complex processes for degradation. The present study aimed to elaborate a proposal for the degradation of the β-lactam antibiotic amoxicillin by photolysis, evaluating the formation of by-products.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:18 to 13:21
Flash presentation in Emerging pollutants
[CEST2019_00416] Combined use of anaerobic and aerobic moving bed biofilm reactors for micropollutants’ removal from wastewater
by Kora E., Theodorelou D., Herpich A., Gatidou G., Fountoulakis M.S., Stasinakis A.

A novel laboratory-scale continuous flow wastewater treatment system, consisting of an anaerobic moving bed biofilm reactor (AnMBBR) and an aerobic MBBR, was used for investigating the removal of hydroxybenzothiazole (OH-BTH) and selected benzotriazoles from municipal wastewater. The system was operated under three different Experimental Phases where different organic loadings were applied: 0.82 kg COD m-3 d-1 (Phase A), 0.2 kg COD m-3 d-1 (Phase B) and 2.1 kg COD m-3 d-1 (Phase C). The system achieved sufficient COD removal, nitrification and biogas production.

Session: 28, Room: D, at Fri, 09/06/2019 - 12:15 to 12:30
Oral presentation in Emerging pollutants
[CEST2019_00418] Investigation of food additives readily biodegradability in respirometric tests
by Vazaiou N., Gatidou G., Arvaniti O.S., Stasinakis A.S.

The biodegradability of fourteen (14) food additives, belonging to different groups such as artificial sweeteners, preservatives and coloring agents, was evaluated using the OECD 301F protocol (manometric respirometry test).

Session: 28, Room: D, at Fri, 09/06/2019 - 13:21 to 13:24
Flash presentation in Emerging pollutants
[CEST2019_00214] Characterization of Natural Organic Matter and Disinfection By-products Formed After Chemical Disinfection of Water
by Postigo C., Andersson A., Harir M., Bastviken D., Gonsior M., Schmitt-Kopplin P., Gago-Ferrero P., Ahrens L., Ahrens L., Wiberg K.

The present work aims at investigating the effects of chlorine and chloramine-based disinfection processes on organic matter and the formation of disinfection byproducts (DBPs) in drinking water treatment plants (WTPs). For this, water from four water treatment plants with different characteristics in terms of the type of disinfectant used (chlorine or chloramine) and source water type (groundwater, surface water, or artificially recharged groundwater) was analysed before and after the chemical disinfection process.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:27 to 13:30
Flash presentation in Emerging pollutants
[CEST2019_00218] Removal of PFAS from wastewater by bio-waste adsorbent: material characterization and adsorption kinetic study.
by Bavasso I., Bracciale M.P., Sbardella F., Scarsella M., Di Palma L.

Per- and polyfluoroalkyl substances (PFAS) are considered emerging contaminants and have been increased their attention due to their distribution in water body. These compounds are acid and characterized by a thermal stability to make them resistant to degradation processes. Activities such as tannery, paper and cardboard production, waterproof cloths, produce wastewater rich in PFAS and heavy metals.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:00 to 13:15
Oral presentation in Emerging pollutants
[CEST2019_00097] Extended suspect screening to identify organic micropollutants and their transformation products as potential markers of wastewater contamination in riverine and coastal ecosystems
by Čelić M., Jaén-Gil A., Briceño-Guevara S., Rodriguez-Mozaz S., Gros M., Petrović M.

In this study, a comprehensive suspect screening of organic micropollutants (MPs), and some of their transformation products (TPs) and metabolites, was performed in waste, river and coastal waters from the Ebro Delta region (Catalonia, Spain). For this purpose, an automated suspect screening workflow was developed using two analytical steps: (i) identification of suspected compounds using on-line databases; and (ii) semi-quantification of identified compounds by using isotopic labelled standards.

Session: 28, Room: D, at Fri, 09/06/2019 - 13:15 to 13:18
Flash presentation in Emerging pollutants