Conference proceedings

Displaying 11 - 20 of 36 in Advanced oxidation processes (remove filter), CEST2021 (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Magnetic CoFe2O4@carbon yolk-shell nanoparticles as catalysts for the catalytic wet peroxide of paracetamol

Silva A., Costa Guari N., Diaz de Tuesta J., Eno Pottker W., Yassue Cordeiro P., (Corresponding) Gomes H.

Topic:

Advanced oxidation processes

This work focuses the use of carbon-coated magnetic cobalt ferrite nanoparticles as catalysts for catalytic wet peroxide oxidation (CWPO) of the emerging pollutant paracetamol. A magnetic core composed of CoFe2O4 is developed by a sol-gel method. The core is subsequently coated with a formaldehyde-...Read more

Keywords:

CoFe2O4 nanoparticles, CWPO, emerging pollutant, paracetamol, carbon-coated

DOI:

https://doi.org/10.30955/gnc2021.00126

Paper ID:

cest2021_00126

Degradation of textile dyes in water by gas-liquid NSP-DBD plasma

MEROPOULIS S., (Corresponding) AGGELOPOULOS C.

Topic:

Advanced oxidation processes

Textile dyes represent some of the most complicated environmental pollutants due to their variety and complex structure. Cold atmospheric plasma (CAP) is regarded as a highly competitive advanced oxidation process towards the removal of organic pollutants from wastewater. In this study, a gas-...Read more

Keywords:

Nanosecond pulsed dielectric barrier discharge; Cold atmospheric plasma; Wastewater treatment; Organic dyes; Reactive nitrogen and oxygen species; Degradation mechanisms.

Paper ID:

cest2021_00132

TiO2/Fe2O3 based Composites for Solar-driven Photocatalytic Degradation of Amoxicillin

(Corresponding) dela Rosa F., Papac J., Kovačić M., (Corresponding) Kušić H., Božic A.

Topic:

Advanced oxidation processes

The occurrence of trace amounts of antibiotics in various bodies of water was directly linked to the development of antibiotic resistant pathogens. Recently, Amoxicillin (AMX) was added on the second EU “watch list” based on the proposed European Decision 2018/840/EU. Its presence in drinking water...Read more

Keywords:

Solar Photocatalysis, TiO2/Fe2O3 , Persulfate, Amoxicillin

Paper ID:

cest2021_00143

Application of carbon-based catalysts derived from compost on catalytic wet peroxide oxidation of leachate waters from mechanical and biological treatment plant units for municipal solid waste

Batista G., (Corresponding) Roman F., Diaz de Tuesta J., Mambrini R., Gomes H.

Topic:

Advanced oxidation processes

This work aims at the valorization of compost from mechanical and biological treatment (MBT) units of municipal solid waste by their transformation into carbon-based catalysts for further application in the treatment of MBT leachate waters (chemical oxygen demand (COD) = 60.0 g L-1, total organic...Read more

Keywords:

valorization, carbon-based catalyst, leachate wastewater, advanced oxidation processes, wastewater treatment

DOI:

https://doi.org/10.30955/gnc2021.00152

Paper ID:

cest2021_00152

Ultrasound-assisted Fenton-like degradation of methylene blue using electrospun nanofibrous membranes

Pervez M., Stylios G., Buonerba A., Hasan S., Cai Y., Zhao Y., Talukder M., Song H., Zarra T., (Corresponding) Naddeo V.

Topic:

Advanced oxidation processes

New materials supported by Green Chemistry have been receiving widespread attention because they are fulfilling the sustainable development goals (SDGs) agenda, for which clean water development is a top priority. Recently, electrospun nanofibers membranes are being frequently used to decontaminate...Read more

Keywords:

Electrospun nanofiber membrane, Green Chemistry, clean water, Fenton-like, methylene blue

DOI:

https://doi.org/10.30955/gnc2021.00211

Paper ID:

cest2021_00211

Ozonation against a diverse suite of antibiotic resistance determinants in wastewater

Iakovides I., Michael-Kordatou I., Karaolia P., Manoli K., Manaia C., (Corresponding) Fatta-Kassinos D.

Topic:

Advanced oxidation processes

This work aimed at investigating the impact of bench-scale ozonation, as tertiary treatment, on the removal and inactivation of selected antibiotics, antibiotic-resistant bacteria, antibiotic resistance genes and toxicity from wastewaters effluents. The novelty of this study concerns the in-depth...Read more

Keywords:

ozone; wastewater disinfection; antibiotic resistance; genes;

Paper ID:

cest2021_00212

Oxidation of acetaminophen by ultrasound waves and H2O2 combined technology

(Corresponding) Villota N., Lomas J., Ferreiro C., Camarero L., Lombraña J.

Topic:

Advanced oxidation processes

This study analyses the colour acquired by oxidizing paracetamol aqueous samples through the combined US/H2O2 technology. When operating with only the action of the waves [US]=1.0 kWh/mmol C8H9NO2, the water acquires progressively hue according to a ratio of 0.0004 AU/min, with a degradation output...Read more

Keywords:

Paracetamol, colour, hydrogen peroxide, reaction intermediates, ultrasounds waves

DOI:

https://doi.org/10.30955/gnc2021.00337

Paper ID:

cest2021_00337

Comparison of caffeine oxidation by Fenton reagent in combination with UV light and ultrasound waves

(Corresponding) Villota N., Lomas J., Ferreiro C., Lombraña J.

Topic:

Advanced oxidation processes

The oxidation of aqueous caffeine solutions ([Ca]0=100.0 mg L-1) was analysed, operating at pH=3.0 and 25ºC using different AOPs, which combine the Fenton reagent ([H2O2]0=15.0 mM and [Fe2+]0=20.0 mg L-1) with low power UV light (15W,), medium (150W), and high (720 W). The Fenton reagent, combined...Read more

Keywords:

AOPs, caffeine, Fenton reagent, ultrasounds waves, ultraviolet light

Paper ID:

cest2021_00338

Toxicity study of Norfloxacin degradation by advanced oxidative process

Costa B., Cordeiro S., Schweizer Y., Weber A., Haas P., de Oliveira L., Ethur E., (Corresponding) Hoehne L.

Topic:

Advanced oxidation processes

Advanced oxidative processes (AOPs) are promising techniques that have been developed to treat and remove these organic contaminants in surface waters and effluents. The objective of this work was to evaluate the toxicity of products generated from UV/H2O2 degradation of solutions containing 5 µg/...Read more

Keywords:

micropollutant; ecotoxicity, antibiotics UV/H2O2

DOI:

https://doi.org/10.30955/gnc2021.00352

Paper ID:

cest2021_00352

Degradation of refractory compounds in industrial wastewaters by advanced technologies based on electrochemical and photochemical oxidation

Petsi P., Sarasidis V., (Corresponding) Plakas K., Karabelas A.

Topic:

Advanced oxidation processes

Results are presented of a systematic experimental investigation aiming to eliminate refractory organics from industrial effluents, of high and non-biodegradable organic load, by two Advanced Oxidation Processes (AOPs). Bench scale experiments were performed with real wastewater samples collected...Read more

Keywords:

wastewater, refractory organics, electrochemical advanced oxidation processes, anodic oxidation, photochemical oxidation, pesticide industry

DOI:

https://doi.org/10.30955/gnc2021.00355

Paper ID:

cest2021_00355