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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1522| Removal of arsenic (III) from groundwater by titanium dioxide as adsorbent | |
| MIRIAM ZSAZSA LOPEZ PARAGUAY MARIA TERESA ALARCON HERRERA | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Adsorption Arsenic | |
| It is necessary to develop new and economic alternatives for arsenic (As) removal by adsorbents. The aim of this study is to investigate the feasibility of using commercially available titanium dioxide (TiO2) for arsenite (As(III)) removal from aqueous solutions. Batch experiments were performed to determine the effect of several variables such as adsorbent dosage, contact time, initial arsenite concentration, adsorbent particle size, etc. on the removal of arsenite from water. Results show that the kinetic rate of As(III) adsorption was high in the first 30 minutes and slows thereafter. The maximum achieved removal efficiency of As(III) was 98.8% using an adsorbent dosage of 2.1 g/L in 1.5 hours of contact time. Freundlich isotherm better described the adsorption process, which indicates that the multilayer adsorption should be involved in the process of As(III) removal. Commercial TiO2 had high adsorption capacity for As(III) removal under natural conditions of pH 8 at room temperature (26±1ºC). | |
| 2010 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| TiO2 -As 11 ICOBTE 2011-MZLP.pdf | 177.89 kB | Adobe PDF | Visualizar/Abrir |