Electrochemical remediation of 17α-ethinylestradiol
Carregando...
Data
2013
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Technological development has led to the emergence of new substances with many different purposes generating a new
profile of pollutants in waterways. Among these, endocrine disruptors, such as 17EE (17α-ethinylestradiol), are of great importance
due to their wide application and harmful consequences to the environment, human health and animals. The inefficiency of most
water treatment processes in withdrawing such substances poses a global concern for the development of effective and
environmentally clean methods. The electrochemical remediation processes appear as a powerful and “green” alternative for waste
removal of organic or inorganic pollutants from complex environments, such as geosphere and hydrosphere. The research focus in
this field is mostly related to the optimization of electronic devices with higher (photo) catalytic efficiency, whereas the starting
material remains based on metal and carbon conventional electrodes. In the present study, the anodic removal process of
17α-ethinylestradiol at carbon cardboards was investigated in stationary and hydrodynamic conditions. The influence of pH and
applied potential were evaluated, always taking into account the transposition of scale and environmental aspects. Thus, the principle
of hormone removal showed to be strictly related to such parameters. It was observed that mild alkaline medium favors the anodic
oxidation, whereas neutral and mild acid ones lead to higher adsorption at carbon surface. Also, when the applied potential was
higher than 1.25 V, the electrochemical oxidation rate increased, and the adsorption was decreased. Furthermore, the removal
efficiency of 17EE showed to be lower, the flow rate was higher.
Descrição
Palavras-chave
Endocrine disruptors, Carbon electrodes, Ethinylestradiol, Electrochemical remediation
Citação
LINO, Fernando Miguel de Amorim et al. Electrochemical remediation of 17α-ethinylestradiol. Journal of Chemistry and Chemical Engineering, Wilmington, v. 7, p. 344-350, 2013.