Transposição didática de método de tratamento de água residuária com carvão ativado para separação de estradiol

Abstract

This work aims to carry out a didactic transposition, for teaching Chemistry, as a proposal for a didactic sequence that involves Carbo activatus, as an adsorption method, providing removal of endocrine disruptors - the female hormones 17β-estradiol and 17α-ethinylestradiol, present in wastewater. The detection of endocrine disruptors has become increasingly evident in research related to water, increasing the interest in knowing the effects of these substances on living organisms and ways to perform their treatment in the environment. Current studies related to disruptors show their presence in an aqueous medium, and already consider the possibility, even in small amounts, of interfering with both the health of aquatic and human fauna. Therefore, the process of didactic transposition considers the possibility of scientific knowledge being problematized in taught knowledge, based on research methods and techniques and analytical technical data. The data for the construction of the proposal for an alternative didactic sequence for Science/Chemistry studies regarding the treatment of these effluents in advance were established in 2017.