Affiliation:
1. Universidad Autónoma de Zacatecas
2. Gerencia de Refinación de Hidrocarburos
Abstract
There is a great problem for the supply of drinking water in Mexico, the state of Zacatecas is no exception, in addition to this the water in the region has the presence of heavy metals, fluorine compounds, arsenic and high hardness. The objective of this work is to remove the arsenic present in the drinking water of the municipality of Ojocaliente, Zac. using chitosan gel beads. The initial sample was characterized giving an As concentration of 70 ppb, a high value in reference to the Official Mexican Standard NOM-127-SSA1-1994 for water for human consumption. A series of experiments were carried out at different concentrations, using drinking water sampled in Ojocaliente, Zac., The operation was in batches at an average temperature of 19 ° C and 250 rpm, in aliquots of 50 ml and 0.3 g of gel chitosan beads. The isotherm and kinetics model that fit the data was determined, being Langmuir and Pseudo first order, respectively, and 20% of the arsenic present in the water was removed in a separation step.
Reference47 articles.
1. Aguirre, C. F. (2015). Efecto del proceso de coagulación con sulfato férrico en la remoción de arsénico del agua de Río Rímac, Aris Industrial SA, Lima-2014. Lima, Perú: Universidad Cesar Vallejo, Lima, Perú.
2. Alarcón, A. (2010). Películas delgadas de TiZnOy:Fe para remoción de arsénico en agua. Invest Apl Innov 4(1), 15 - 21.
3. Alarcón, H. L. (2012). Remoción de Arsénico en Agua de Consumo Humano en Latinoamérica. Cd de M´rxico: Centro de Investigación en Materiales Avanzados, S.C.
4. Araya, O. A. (2016). Remoción de arsénico en agua de consumo humano mediante la técnica de coagulación-floculación. Revista Ciencia, Tecnología y Salud Vol. 3 Num. 2 2016 , 2409-3459.
5. Berardozzi, E. O. (2017). Planta piloto para la remoción de arsénico en agua: Prueba de campo . 4º Jornadas ITE - 2017. La Plata: Facultad de Ingeniería – UNLP.