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Removal of Inorganic Mercury from Polluted Water Using Structured Nanoparticles |
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| Authors: | Sadott Pacheco Martín Medina Félix Valencia Josefina Tapia |
| Affiliation: | 1PhD Coordinación de Ingeniería Molecular, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas No. 152, Apdo. Postal 14-805, C.P. 07730, Mexico, D.F., Mexico. E-mail: spacheco@imp.mx 2MS Student, Dept. de Ciencias Básicas e Ingeniería, Univ. Autónoma Metropolitana Azcapotzalco, Av. San Pablo No. 180, Col. Reynosa Tamaulipas, C.P. 02200, Mexico D.F., Mexico. E-mail: martin135@mexico.com 3MS Student, Laboratorio Central, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas No. 152, Apdo. Postal 14-805, C.P. 07730, México, D.F., Mexico. E-mail: fvalenci@imp.mx 4Professor, Dept. de Ciencias Básicas e Ingeniería, Univ. Autónoma Metropolitana Azcapotzalco, Av. San Pablo No. 180, Col. Reynosa Tamaulipas, C.P. 02200, México D.F. E-mail: jtc@correo.azc.uam.mx |
| Abstract: | This paper presents a process for the removal of inorganic mercury from aqueous solutions using alumina nanoparticles, which were prepared by the sol-gel method. Different amounts of mercury were added to the particles until a critical concentration was achieved, thus inducing the alumina sol flocculation. Particle growth was monitored during the process using dynamic light scattering. The amount of metal ion adsorbed on the surface of the alumina sols was determined by atomic absorption spectroscopy. Initial mercury concentrations ranging between 50 and 100 ppm decreased to below 1 ppb in a short time. |
| Keywords: | Mercury Abatement and removal Particles Water pollution Water treatment |