Remoción de ibuprofeno y amoxicilina en agua residual doméstica mediante jabones con carbón activado y polvo de semillas de moringa
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Date
2024
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Universidad Nacional de Trujillo
Abstract
La presente investigación, se realizó a fin de conocer el efecto del uso de jabones mezclados con carbón activado y polvo de semillas de moringa, sobre la concentración de los fármacos ibuprofeno y amoxicilina presentes en un agua residual doméstica. Los jabones fueron preparados con glicerina comercial transparente adicionando los adsorbentes a razón de 0,1 g/g de jabón. El agua residual fue preparada en el laboratorio y resultó con características típicas de un agua residual con un pH de 7,8, una DQO de 895 mg/l y una DBO de 298 mg/L, aquí se adicionaron 3 mg/L de ibuprofeno y 3 mg/L de amoxicilina. Posteriormente se realizaron las pruebas adicionando a 1 litro del agua residual sintética los jabones con los adsorbentes carbón activado y polvo de semillas de moringa, por separado y juntos, en tres porcentajes en peso: 5%,15% y 25%. La aplicación del jabón con polvo de semillas de moringa con un porcentaje en peso de 25%, logró la mayor remoción de ambos fármacos, con 81,33% y 80% para ibuprofeno y amoxicilina respectivamente. Con la aplicación combinada de los jabones con carbón activado y polvo de semillas de moringa al 25% en peso, se obtuvo un 82% de remoción de amoxicilina. Este tratamiento fue aplicado en un agua residual real, procedente de la desembocadura de aguas residuales domésticas al río Huallaga en Tingo María, que luego fue caracterizada con valores promedio de pH 7,82, Temperatura 22,7 °C, DQO de 1 138,1 mg/L, DBO de 403,6 mg/L y conductividad de 2470,43 μS/cm. Los porcentajes de remoción de ibuprofeno y amoxicilina fueron 72,3% y 69,7% respectivamente, valores que son menores que los obtenidos con el mismo tratamiento en un agua residual preparada en el laboratorio. Según el análisis estadístico realizado tanto las concentraciones finales y porcentaje de remoción de los fármacos del agua residual doméstica real y el agua residual artificial presentan una diferencia significativa.
The present investigation was carried out in order to know the effect of using soaps mixed with activated charcoal and moringa seed powder on the concentration of the drugs ibuprofen and amoxicillin present in domestic wastewater. The soaps were prepared with transparent commercial glycerin by adding the adsorbents at a rate of 0,1g/g of soap. The wastewater was prepared in the laboratory and had typical characteristics of a wastewater with a pH of 7,8 , a COD of 895 mg/L and a BOD of 298 mg/L. Here, 3 mg/L of ibuprofen and 3 mg/L were added. mg/l of amoxicillin. Subsequently, the tests were carried out by adding the soaps with the adsorbents activated carbon and moringa seed powder to 1 liter of the synthetic wastewater, separately and together, in three percentages by weight: 5%, 15% and 25%. The application of soap with moringa seed powder with a weight percentage of 25% achieved the highest removal of both drugs, with 81,33% and 80% for ibuprofen and amoxicillin respectively. With the combined application of soaps with activated carbon and moringa seed powder at 25% by weight, an 82% removal of amoxicillin was obtained. This treatment was applied to real wastewater, coming from the outlet of domestic wastewater to the Huallaga River in Tingo María, which was then characterized with average values of pH 7,82, Temperature 22,7 °C, COD of 1 138,1 mg/L, BOD of 403,6 mg/L and conductivity of 2470,43 μS/cm. The removal percentages of ibuprofen and amoxicillin were 72,3% and 69,7% respectively, values that are lower than those obtained with the same treatment in wastewater prepared in the laboratory. According to the statistical analysis carried out, both the final concentrations and removal percentage of the drugs from the real domestic wastewater and the artificial wastewater present a significant difference.
The present investigation was carried out in order to know the effect of using soaps mixed with activated charcoal and moringa seed powder on the concentration of the drugs ibuprofen and amoxicillin present in domestic wastewater. The soaps were prepared with transparent commercial glycerin by adding the adsorbents at a rate of 0,1g/g of soap. The wastewater was prepared in the laboratory and had typical characteristics of a wastewater with a pH of 7,8 , a COD of 895 mg/L and a BOD of 298 mg/L. Here, 3 mg/L of ibuprofen and 3 mg/L were added. mg/l of amoxicillin. Subsequently, the tests were carried out by adding the soaps with the adsorbents activated carbon and moringa seed powder to 1 liter of the synthetic wastewater, separately and together, in three percentages by weight: 5%, 15% and 25%. The application of soap with moringa seed powder with a weight percentage of 25% achieved the highest removal of both drugs, with 81,33% and 80% for ibuprofen and amoxicillin respectively. With the combined application of soaps with activated carbon and moringa seed powder at 25% by weight, an 82% removal of amoxicillin was obtained. This treatment was applied to real wastewater, coming from the outlet of domestic wastewater to the Huallaga River in Tingo María, which was then characterized with average values of pH 7,82, Temperature 22,7 °C, COD of 1 138,1 mg/L, BOD of 403,6 mg/L and conductivity of 2470,43 μS/cm. The removal percentages of ibuprofen and amoxicillin were 72,3% and 69,7% respectively, values that are lower than those obtained with the same treatment in wastewater prepared in the laboratory. According to the statistical analysis carried out, both the final concentrations and removal percentage of the drugs from the real domestic wastewater and the artificial wastewater present a significant difference.
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