Reducción de trazas de materia orgánica en agua potable mediante la adsorción con Zeolita.//Reduction of organic matter traces in drinking water through adsorption with zeolite

Abstract

El objetivo de esta investigacion fue la reduccion de las trazas de materia organica en el agua potable por medio del uso de zeolita natural, zeolita activada y la comparacion con la eficiencia de la adsorcion del carbon activado. Se utilizo agua suministrada por la compania AGUAPEN\xa0 E.P. y materiales adsorbentes zeolita natural, zeolita activada y carbon activado. La zeolita se activo termicamente a 600aC. Se realizaron pruebas en columnas de adsorcion a escala (RSSCT – Rapid Small-Scale Column Test) para carbon activado granular (GAC) de acuerdo a la norma ASTM 6586 para determinar la eficiencia de la adsorcion de las trazas de materia organica en el agua potable. Se determino la eficiencia en base al parametro de carbono organico total en muestras simple del afluente y efluente del agua tratada cada 3 horas durante 24 horas. El incremento de la presion de trabajo evidencia el punto de ruptura o colmatacion del adsorbente. La concentracion del Carbon Organico Total (COT) se determino mediante el analisis de la combustion de la muestra con el detector infrarrojo no dispersivo de dioxido de carbono (CO 2 ). Los resultados mostraron reduccion de materia organica con el uso de zeolita natural y zeolita activada, con respecto al carbon activado. Abstract The objective of this research was the reduction of organic matter traces in drinking water through the use of natural and activated zeolite, and the comparison with the efficiency of activated carbon adsorption. Water supplied by the company AGUAPEN E.P. was used, and adsorbent materials as natural zeolite, activated zeolite and activated carbon were utilized. The zeolite was thermally activated at 600 ° C. Tests were performed on scale adsorption columns (RSSCT - Rapid Small Scale Column Test) for Granular Activated Carbon (GAC) according to ASTM 6586 to determine the efficiency of the adsorption of traces of organic matter in drinking water. Efficiency was determined based on the total organic carbon parameter in simple affluent and effluent samples of treated water every 3 hours during 24 hours. The increase in working pressure shows the point of rupture or clogging of the adsorbent. The concentration of Total Organic Carbon (TOC) was determined by analyzing the sample combustion with a non-dispersive infrared carbon dioxide (CO 2 ) detector. The results showed the reduction of organic matter in natural zeolite and activated zeolite compared to activated carbon.