Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology
Contamination of natural groundwater by arsenic (As) is a serious problem that appears in some areas of Northern Central Mexico (NCM). In this research, As was removed from NCM wells groundwater by the electrocoagulation (EC) technique. Laboratory-scale arsenic electroremoval experiments were carrie...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/857625 |
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| author | A. M. García-Lara C. Montero-Ocampo F. Equihua-Guillen J. E. Camporredondo-Saucedo R. Servin-Castaneda C. R. Muñiz-Valdes |
| author_facet | A. M. García-Lara C. Montero-Ocampo F. Equihua-Guillen J. E. Camporredondo-Saucedo R. Servin-Castaneda C. R. Muñiz-Valdes |
| author_sort | A. M. García-Lara |
| collection | DOAJ |
| description | Contamination of natural groundwater by arsenic (As) is a serious problem that appears in some areas of Northern Central Mexico (NCM). In this research, As was removed from NCM wells groundwater by the electrocoagulation (EC) technique. Laboratory-scale arsenic electroremoval experiments were carried out at continuous flow rates between 0.25 and 1.00 L min−1 using current densities of 5, 10, and 20 A m−2. Experiments were performed under galvanostatic conditions during 5 min, at constant temperature and pH. The response surface methodology (RSM) was used for the optimization of the processing variables (flow rate and current density), response modeling, and predictions. The highest arsenic removal efficiency from underground water (99%) was achieved at low flow rates (0.25 L min−1) and high current densities (20 A m−2). The response models developed explained 93.7% variability for As removal efficiency. |
| format | Article |
| id | doaj-art-2b42a92524dd4454b8c73f447ea3be9f |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-2b42a92524dd4454b8c73f447ea3be9f2025-08-20T02:04:31ZengWileyJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/857625857625Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface MethodologyA. M. García-Lara0C. Montero-Ocampo1F. Equihua-Guillen2J. E. Camporredondo-Saucedo3R. Servin-Castaneda4C. R. Muñiz-Valdes5Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Coahuila, Avenida Barranquilla s/n, Colonia Guadalupe, C.P. 25750, 25760 Monclova, COAH, MexicoCINVESTAV IPN Unidad Saltillo Carretera Saltillo, Monterrey Km 13, Apdo. Postal 663, C.P. 25000, 25903 Saltillo, COAH, MexicoFacultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Coahuila, Avenida Barranquilla s/n, Colonia Guadalupe, C.P. 25750, 25760 Monclova, COAH, MexicoFacultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Coahuila, Avenida Barranquilla s/n, Colonia Guadalupe, C.P. 25750, 25760 Monclova, COAH, MexicoFacultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Coahuila, Avenida Barranquilla s/n, Colonia Guadalupe, C.P. 25750, 25760 Monclova, COAH, MexicoFacultad de Ingeniería, Universidad Autónoma de Coahuila, Edificio D Unidad Campo Redondo, Boulevard V. Carranza Esquina González Lobo, Colonia República Oriente, C.P. 25280, 25280 Saltillo, COAH, MexicoContamination of natural groundwater by arsenic (As) is a serious problem that appears in some areas of Northern Central Mexico (NCM). In this research, As was removed from NCM wells groundwater by the electrocoagulation (EC) technique. Laboratory-scale arsenic electroremoval experiments were carried out at continuous flow rates between 0.25 and 1.00 L min−1 using current densities of 5, 10, and 20 A m−2. Experiments were performed under galvanostatic conditions during 5 min, at constant temperature and pH. The response surface methodology (RSM) was used for the optimization of the processing variables (flow rate and current density), response modeling, and predictions. The highest arsenic removal efficiency from underground water (99%) was achieved at low flow rates (0.25 L min−1) and high current densities (20 A m−2). The response models developed explained 93.7% variability for As removal efficiency.http://dx.doi.org/10.1155/2014/857625 |
| spellingShingle | A. M. García-Lara C. Montero-Ocampo F. Equihua-Guillen J. E. Camporredondo-Saucedo R. Servin-Castaneda C. R. Muñiz-Valdes Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology Journal of Chemistry |
| title | Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology |
| title_full | Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology |
| title_fullStr | Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology |
| title_full_unstemmed | Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology |
| title_short | Arsenic Removal from Natural Groundwater by Electrocoagulation Using Response Surface Methodology |
| title_sort | arsenic removal from natural groundwater by electrocoagulation using response surface methodology |
| url | http://dx.doi.org/10.1155/2014/857625 |
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