Conference proceedings

Displaying 11 - 20 of 26 in Advanced oxidation processes (remove filter), oxidation (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Carbon nanotubes synthesized from LDPE for application in wet peroxide oxidation of paracetamol

(Corresponding) Roman F., Marim Lopes J., Diaz de Tuesta J., Lenzi G., Tavares da Silva A., Faria J., Gomes H.

Topic:

Advanced oxidation processes

Carbon nanotubes (CNTs) were produced by chemical vapor deposition (CVD) considering low-density polyethylene (LDPE) as a carbon source and as an alternative to upcycle plastic solid waste. The CNTs were synthesized over bimetallic catalysts (Ni and Fe) supported on Al2O3 and purified with H2SO4 to...Read more

Keywords:

Catalytic wet peroxide oxidation, paracetamol, plastic solid waste, carbon nanotubes.

DOI:

https://doi.org/10.30955/gnc2021.00113

Conference:

CEST2021

Paper ID:

cest2021_00113

Selective denitrification of lipophilic pollutants from oily wastewater by peroxidation using Janus-structured amphiphilic carbon nanotubes as catalysts

Sanches F., Roman F., Silva A., Diaz de Tuesta J., Marin P., Machado B., Serp P., Silva A., (Corresponding) Gomes H.

Topic:

Advanced oxidation processes

Carbon nanotubes (CNTs) were tested as catalysts in the selective denitrification of 4-nitrophenol (4-NP) from oily wastewater by catalytic wet peroxide oxidation (CWPO). The CNTs were prepared by chemical vapor deposition, feeding sequentially ethylene (E) and/or acetonitrile (A) during different...Read more

Keywords:

Catalytic wet peroxide oxidation, 4-nitrophenol, Carbon nanotubes, Janus-structure, Pickering emulsion.

DOI:

https://doi.org/10.30955/gnc2021.00125

Conference:

CEST2021

Paper ID:

cest2021_00125

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

Conference:

CEST2021

Paper ID:

cest2021_00152

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

Conference:

CEST2021

Paper ID:

cest2021_00355

Preliminary Research on Removal of Organic Substances Contained in Wastewater from Plastic Lenses Production

(Corresponding) Umiejewska K., Różycki M.

Topic:

Advanced oxidation processes

More than 80 percent of all eyeglasses worn today have plastic lenses. Plastic lenses made of polycarbonate discs are created through the process of machining which requires the use of a coolant. During the production process, the rotating disc and blade are poured with a mixture of water and...Read more

Keywords:

organic substances, wastewater treatment, advanced oxidation process, Fenton reagent

DOI:

https://doi.org/10.30955/gnc2021.00359

Conference:

CEST2021

Paper ID:

cest2021_00359

SELECTED APPLICATIONS of CAVITATION BASED ADVANCED OXIDATION PROCESSES (AOPs) for TREATMENT of WATER and INDUSTRIAL EFFUENTS

Fedorov K., Cako E., (Corresponding) Boczkaj G.

Topic:

Advanced oxidation processes

Cavitation phenomenon was effectively applied for enhancement of Advanced Oxidation Processes (AOPs) effectiveness. Main applications are focused on treatment of water as well as industrial effluents [1-2]. Cavitation phenomenon can be generated in the liquid by intentionally formed differences in...Read more

Keywords:

cavitation, AOP, radicals, wastewater treatment, oxidation, persulfates

Conference:

CEST2021

Paper ID:

cest2021_00364

Degradation of cytostatic drugs in water by ozonation

(Corresponding) Garcia-Costa A., Gouveia T., Pereira M., Silva A., Alves A., Madeira L., Santos M.

Topic:

Advanced oxidation processes

This work presents the degradation of five cytostatics found in Portuguese WWTP effluents: bicalutamide (BICA), capecitabine (CAP), cyclophosphamide (CYC), ifosfamide (IFO) and mycophenolic acid (MPA) using non-catalytic ozonation. Experiments were performed with 1 µM of each cytostatic at pH: 7.3...Read more

Keywords:

cytostatic drugs, oxidation, water treatment, emerging contaminants

Conference:

CEST2021

Paper ID:

cest2021_00389

Ηexavalent chromium reduction in a photocatalytic membrane reactor in the presence of organic acids

(Corresponding) Sarasidis V., Kyriakou E., Plakas K., Karabelas A.

Topic:

Advanced oxidation processes

This study deals with the photocatalytic reduction of carcinogenic hexavalent chromium, encountered in industrial effluents and surface waters, to much less toxic and harmful trivalent form. Experiments were performed in a pilot scale Photocatalytic Membrane Reactor employing titanium dioxide...Read more

Keywords:

Advanced oxidation processes, heterogeneous photocatalysis, ultrafiltration, titanium dioxide nanoparticles, wastewater treatment

DOI:

https://doi.org/10.30955/gnc2021.00419

Conference:

CEST2021

Paper ID:

cest2021_00419

Heterogeneous activation of persulfate by LaSrNiGaO3

Kouvelis K., Petala A., Bampos G., (Corresponding) Frontistis Z., Kondarides D.

Topic:

Advanced oxidation processes

In recent years, scientists in the field of environmental management and protection, have not only detected but also quantified a large number of pharmaceuticals in treated wastewater, surface and groundwater. In order to address this problem, intensive research is carried out to develop effective...Read more

Keywords:

perovskite oxide, persulfate, oxidation, sulfamethoxazole, pharmaceuticals

Conference:

CEST2021

Paper ID:

cest2021_00520

Removal of amoxicillin from processing wastewater by ozonation and UV-aided ozonation: a kinetic and economic comparative study

Ribeiro M., Ramos B., (Corresponding) de Castro Peixoto A.

Topic:

Advanced oxidation processes

A novel empirical and scaling up simulation study is presented for degradation and mineralization of real residue of amoxicillin (AMX) pharmaceutical formulation in wastewater. A set of UV-ozone-based experiments was used in the kinetics modeling of AMX, considering several chemical/photochemical...Read more

Keywords:

Advanced oxidation processes, ozone, pharmaceutical formulation, kinetic modeling, engineering economics.

DOI:

https://doi.org/10.30955/gnc2021.00636

Conference:

CEST2021

Paper ID:

cest2021_00636