Biosorción de ciprofloxacina con bagazo de caña y mazorca de maíz en tanque agitado

Abstract

Emerging pollutants are an environmental problem that is increasingly noticeable, since their existence in wastewater is due to wastewater treatment plants that do not purify this type of pollutant. Its presence is considered a threat to the environment, due to its persistence and its acceleration bioaccumulation in the organisms of the environment. Recently, methods for the elimination of this type of substances have been studied, which turn out to be very expensive; in this way, the need arises for the search for alternative treatments such as biosorption. Drugs are the most common emerging contaminants in wastewater such as ciprofloxacin. In this study, the removal of ciprofloxacin in the agitated tank was evaluated using corn cob and bagasse as biosorbent. The parameters studied in the biosorption process were concentrations of ciprofloxacin, pH of the solution, contact time, amount of biosorbent, in addition kinetic and thermodynamic studies were carried out, resulting in that while the concentration of ciprofloxacin is lower, the percentage of removal, the optimum pH is 6, the contact time was 60 minutes, for corn cob a percentage of removal of 83% was obtained with 3 g / L of biomass, not so for sugarcane bagasse, given that with 9 g / L a percentage of removal of 87% was obtained, defining in this way the best biosorbent for the removal of ciprofloxacin was the corn cob.