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Browsing by Author "Bretas Alvim, Clara"

Now showing items 1-10 of 10

An innovative approach to the application of ultrasounds to remove polyethylene microspheres from activated sludge

Alvim, Clara; Bes-Piá, M.A.; Mendoza Roca, José Antonio (Elsevier, 2021-06-01)

[EN] During the secondary treatment of Wastewater Treatment Plants (WWTP) previous studies have reported that microplastics (MPs), which correspond to plastic fragments smaller than 5 mm, are mostly retained in the activated ...
Assessment of Microplastics Distribution in a Biological Wastewater Treatment

Castelluccio, Stefano; Alvim, Clara Bretas; Bes-Piá, M.A.; Mendoza Roca, José Antonio; Fiore, Silvia (MDPI AG, 2022-02-01)

[EN] Full-scale wastewater treatment facilities are not able to prevent microplastics (MPs) from discharging into natural waters and they are also associated with the land application of the sludge. This study evaluates ...
Caracterización de microplásticos en aguas naturales y residuales, y su influencia y separación en procesos biológicos de depuración

Bretas Alvim, Clara (Universitat Politècnica de València, 2022-09-02)

[ES] Los microplásticos (MPs) son partículas de material plástico menores que 5 mm que están siendo identificadas en el agua, tierra y aire. La presencia de estos contaminantes emergentes en el medio ambiente supone una ...
DESARROLLO DE UN PROTOCOLO PARA LA SEPARACIÓN Y ANÁLISIS DE LOS MICROPLÁSTICOS CONTENIDOS EN FANGOS DE ESTACIONES DE DEPURACION DE AGUAS RESIDUALES URBANAS

Navajas Valiente, Samuel (Universitat Politècnica de València, 2021-09-01)

[ES] El presente TFG tiene como objetivo lograr la separación y el análisis de los microplásticos contenidos en los fangos de las estaciones depuradoras de agua residual. Para ello, se han empleado diferentes técnicas ...
Effect of polyethylene microplastics on activated sludge process Accumulation in the sludge and influence on the process and on biomass characteristics

Alvim, C. Bretas; Castelluccio, S.; Ferrer-Polonio, Eva; Bes-Piá, M.A.; Mendoza Roca, José Antonio; Fernández-Navarro, J.; Alonso Molina, José Luís; Amoros, Inmaculada (Elsevier, 2021-04)

[EN] According to previous research, it has been proved that wastewater treatment plants (WWTPs) can retain more than 90 % of the MPs contained in wastewater. However, a significant fraction of the MPs removed in WWTPs is ...
Influence of bisphenol A occurrence in wastewaters on biomass characteristics and activated sludge process performance

Ferrer-Polonio, Eva; Bretas Alvim, C.; Fernández-Navarro, J.; Mompó-Curell, R.; Mendoza Roca, José Antonio; Bes-Piá, M.A.; Alonso Molina, José Luís; Amoros, Inmaculada (Elsevier, 2021-07-15)

[EN] In this work, the influence of bisphenol A (BPA) on biological wastewater treatment was studied. For it, two sequencing batch reactors (SBRs) were operated for three months. Both SBRs were fed with synthetic wastewater ...
Methodology for removing microplastics and other anthropogenic microparticles from sludge dewatering system

Alvim, C. Bretas; Navajas Valiente, S.; Bes-Piá, M.A.; Mendoza Roca, José Antonio (Elsevier, 2022-07-15)

[EN] Anthropogenic microparticles (e.g., microplastics) are present in sewage plants, especially in sludge streams. However, the lack of standardized protocols to scrutinize the presence of anthropogenic microparticles in ...
Separacion e identificación de microfibras textiles en aguas residuales y potables mediante técnicas de tinción

Bretas Alvim, Clara (Universitat Politècnica de València, 2021-10-21)

[ES] El presente Trabajo Fin de Máster tiene como objetivo evaluar el empleo de técnicas de tinción con los reactivos Rosa-Bengala y Rojo Nilo, para la identificación de microfibras (< 5mm) naturales y sintéticas (microplásticos ...
Separation and identification of microplastics from primary and secondary effluents and activated sludge from wastewater treatment plants

Alvim, C. Bretas; Bes-Piá, M.A.; Mendoza Roca, José Antonio (Elsevier, 2020-12-15)

[EN] Although wastewater treatment plants can retain a high percentage of microplastics (MP) arriving at the facilities, no method for extracting and characterizing these microparticles has been still standardized in these ...
Wastewater treatment plant as microplastics release source - Quantification and identification techniques

Bretas Alvim, C.; Mendoza Roca, José Antonio; Bes-Piá, M.A. (Elsevier, 2020-02-01)

[EN] The high presence of microplastics (MPs) in different sizes, materials and concentrations in the aquatic environment is a global concern due to their potential physically and chemically harm to aquatic organisms ...