Synthesis, Characterization and Decomposition of Potassium Jarosite for Adsorptive As(V) Removal in Contaminated Water: Preliminary Study

Eduardo Cerecedo-Sáenz, Elías Hernández-Lazcano, Maythe J. González-Bedolla, Juan Hernández-Ávila, Raúl Rosales-Ibáñez, María del P. Gutiérrez-Amador, Ariadna Sánchez-Castillo, Alberto Arenas-Flores () and Eleazar Salinas-Rodríguez ()
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Eduardo Cerecedo-Sáenz: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico
Elías Hernández-Lazcano: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico
Maythe J. González-Bedolla: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico
Juan Hernández-Ávila: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico
Raúl Rosales-Ibáñez: Tissue Engineering and Traslational Medicine Laboratory, Faculty of Higher Education, Iztacala, National Autonomous University of Mexico, Tenayuca-Chalmita S/N, Cuautepec, Barrio Bajo, Alcaldía Gustavo A. Madero, Ciudad de Mexico 07239, Mexico
María del P. Gutiérrez-Amador: Apan High School, Autonomous University of the State of Hidalgo, Highway Apan-Calpulalpan km. 8, Apan 43920, Mexico
Ariadna Sánchez-Castillo: Apan High School, Autonomous University of the State of Hidalgo, Highway Apan-Calpulalpan km. 8, Apan 43920, Mexico
Alberto Arenas-Flores: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico
Eleazar Salinas-Rodríguez: Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Highway Pachuca-Tulancingo km. 4.5, Mineral de la Reforma, Pachuca 42184, Mexico

IJERPH, 2022, vol. 19, issue 23, 1-14

Abstract: Jarosite-type compounds precipitated in the zinc industry for iron control can also incorporate arsenic and can be used for wastewater treatment for As elimination. According with the last, this work is related to arsenic incorporation at room temperature in decomposed potassium jarosite. The work began with the synthesis of the compound at 75 °C for 9 h using Fe 2 (SO 4 ) 3 and K 2 SO 4 at a pH of 1.1. Once jarosite was obtained, solids were subjected to an alkaline decomposition using NaOH at pH 10 for 30 min, and then As was added to the solution as HAsNaO 4 and the pH modified by adding HNO 3 until it reached a value of 1.1. The initial, intermediate, and final products were wholly characterized by scanning electron microscopy (SEM) in conjunction with energy dispersive spectrometry (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy (RS), and X-ray photoelectron spectrometry (XPS). The obtained results show that As(V) can be adsorbed by ionic exchange in the amorphous FeOH structure of decomposed jarosite and when pH decreased to 1.1, the compound recrystallized, incorporating up to 6% As on average, which is indicative that this process can be used to reduce As in contaminated waters.

Keywords: wastewater; arsenic; arsenic elimination; water depuration; jarosites (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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