Exploratory evaluation of indirect ultrasound application associated with a passive metallic mesh for the removal of 17α-ethinylestradiol in aqueous medium

Authors
DOI:
https://doi.org/10.47456/bjpe.v12i3.52842
Keywords:
Ultrasound, 17α-ethinylestradiol (EE2)
Abstract

Pollutants capable of disrupting the endocrine systems of humans and wildlife represent a significant environmental threat. Synthetic hormones, such as 17α-ethinylestradiol (EE2), and natural hormones, upon reaching water bodies, pose a challenge for their removal to satisfactory levels. Ultrasound is considered an environmentally friendly and sustainable technique, employed to intensify processes in different matrices. This study evaluated the potential for EE2 removal from water through indirect ultrasound application in the presence of metallic screens. The frequencies (25 and 37kHz), temperatures (25 and 30°C), ultrasound application times (15 to 45min), and metallic screen masses (11 and 24g) were investigated. For cost-effectiveness reasons, UV-Vis spectrophotometry, with second-derivative processing, was used to monitor the effect of the treatments, with results qualitatively confirmed by gas chromatography coupled to mass spectrometry (GC-MS) at 45min. The results showed that ultrasound alone promoted a maximum EE2 removal of 7.2%, while the presence of metallic screens increased this removal to up to 21.2%, particularly at 30°C. Future studies should investigate other analytical techniques to confirm the effectiveness of EE2 removal.

Author Biographies
  1. Ana Carolina Bazon Demonel, Federal University of Espírito Santo

    Engenheira Química pela Universidade Federal do Espírito Santo (2026), Técnica em Química pelo Instituto Federal do Espírito Santo. Atuando principalmente em temas como Celulose e Química Ambiental. https://orcid.org/0000-0003-1587-5478

  2. Maria de Fátima Pereira dos Santos, Federal University of Espírito Santo

    Possui graduação de Bacharel em Química com Orientação Tecnológica (1990), Licenciatura em Química (1991) e aperfeiçoamento em Metodologia do Ensino Superior (1995) pela Fundação Técnico Educacional Souza Marques. Possui aperfeiçoamento na área de Engenharia de Petróleo pela Universidade Estácio de Sá, (2001), mestrado em Química Analítica pela Universidade Federal do Rio de Janeiro, (2004) e doutorado em Química Analítica pela Universidade Federal de Santa Maria, (2009). Atualmente é professora Titular em Química Analítica do Petróleo. Participa como membro permanente do PPGEN, Mestrado em ENERGIA, linha de pesquisa Petróleo, gás e energias renováveis. Atua principalmente no estudo dos seguintes temas: comportamento de misturas e determinações de parâmetros de solubilidade em petróleos Brasileiros, uso de energias alternativas de micro-ondas e ultrassom na separação de emulsões de petróleos pesados e no desenvolvimento, otimização e validação de métodos na caracterização de petróleos extrapesados, desenvolvimento de métodos para a determinação de propriedades Dielétricas e Elétricas em Petróleos e Emulsões de Petróleos. Em junho de 2024, fui indicada para compor o Comitê de Assessoramento de Bolsas de Produtividade em Desenvolvimento Tecnológico e Extensão Inovadora (CA-DT).

  3. Renato Rodrigues Neto, Federal University of Espírito Santo

    Possui graduação em química pela Universidade Federal de Santa Catarina (1996), mestrado em química pela Universidade Federal de Santa Catarina (1998), doutorado em Oceanografia Química pela University of Liverpool (2002), e pós-doutorado em Geoquímica Orgânica - Florida International University, EUA (2003). Atualmente é Professor Associado III da Universidade Federal do Espírito Santo. Tem experiência na área de Oceanografia, com ênfase em Oceanografia Química, Poluição Marinha e Química Analítica, desenvolvendo pesquisa nas áreas de paleoambiente e biogeoquímica de matéria antrópica e natural em sistemas costeiros e marinhos. Coordenou o Programa de Pós-Graduação em Oceanografia Ambiental da UFES de julho de 2007 a dezembro de 2008. Foi chefe do Departamento de Oceanografia e Ecologia da UFES de março de 2009 a março de 2012. Foi Diretor do Centro de Ciências Humanas e Naturais da UFES de 2012 a 2020. Foi Pró-Reitor de extensão de 2020 a 2024. É coordenador do Laboratório de Geoquímica Ambiental e Poluição Marinha do Departamento de Oceanografia e Ecologia. https://orcid.org/0000-0003-0803-4435

  4. Maristela de Araújo Vicente, Federal University of Espírito Santo

    Possui graduação em Farmácia pela Universidade Federal de Ouro Preto (1992), mestrado em Ciências Biológicas pela Universidade Federal de Ouro Preto (2003) e doutorado em Ciências Biológicas pela Universidade Federal de Ouro Preto (2007). Atualmente é professora Associada da Universidade Federal do Espírito Santo, locada no Departamento de Ciências Naturais. Leciona disciplinas de Química Analítica e Análise Instrumental. Atua como professora do Programa de Pós-graduação em Energia da Universidade Federal do Espírito Santo (UFES/ES) na linha de pesquisa de Petróleo, Gás e Energias Renováveis. Tem experiência na área de Química Analítica, com ênfase em Instrumentação Analítica, atuando principalmente nos seguintes temas: preparo de amostra, petróleo, ultrassom, água, remediação. Possui 03 patentes de inovação nacional e 01 internacional. https://orcid.org/0000-0002-2575-2386

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Article cover of the Brazilian Journal of Production Engineering. The image shows a transparent cylindrical container in the foreground, illuminated from behind and containing numerous metal pieces and fragments of different shapes and sizes, suggesting materials undergoing a separation or removal process. A multicolored hot-air balloon appears in the upper-left corner as a recurring visual element of the covers. The title “Ultrassom + Metal: + Remoção de EE2?” appears in white lettering, followed by the authors’ identification “Demonel, Santos, Rodrigues Neto & Vicente (2026)” in yellow. The bottom section displays the logos of PPGCP, UFES – Pró-Reitoria de Pesquisa e Pós-Graduação, UFES – Campus São Mateus, Núcleo de Pesquisa em Gestão de Sistemas de Produção – NP GSP, Engenharia de Produção, and FAPES – Fundação de Amparo à Pesquisa e Inovação do Espírito Santo. A gold banner at the bottom reads “Brazilian Journal of Production Engineering”.
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Published
2026-09-30
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Vol. 12 No. 3 (2026): Regular Issue (July - September)
Section
ENVIRONMENTAL ENGINEERING AND SUSTAINABILITY
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Demonel, A. C. B., Santos, M. de F. P. dos, Rodrigues Neto, R., & Vicente, M. de A. (2026). Exploratory evaluation of indirect ultrasound application associated with a passive metallic mesh for the removal of 17α-ethinylestradiol in aqueous medium. Brazilian Journal of Production Engineering, 12(3), 155-172. https://doi.org/10.47456/bjpe.v12i3.52842