Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents
Many of the current strategies for removing pollutants from water are based on nanomaterials and nanotechnology. Lower values of Biological Oxygen Demand (BOD<sub>5</sub>) and Chemical Oxygen Demand (COD) in water results in reduction in the amount of oxidizable pollutants. We present a...
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MDPI AG
2023-06-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/9/6/157 |
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| author | Hajer Tlili Anis Elaoud Nedra Asses Karima Horchani-Naifer Mounir Ferhi Gerardo F. Goya Jesús Antonio Fuentes-García |
| author_facet | Hajer Tlili Anis Elaoud Nedra Asses Karima Horchani-Naifer Mounir Ferhi Gerardo F. Goya Jesús Antonio Fuentes-García |
| author_sort | Hajer Tlili |
| collection | DOAJ |
| description | Many of the current strategies for removing pollutants from water are based on nanomaterials and nanotechnology. Lower values of Biological Oxygen Demand (BOD<sub>5</sub>) and Chemical Oxygen Demand (COD) in water results in reduction in the amount of oxidizable pollutants. We present a study on the reduction of COD and BOD<sub>5</sub> in water from Wadi El Bey River (Tunisia), using magnetite nanoparticles (MNPs) and magnetic fields. The COD and BOD<sub>5</sub> removal reached values higher than 50% after 60 min, with optimum efficiency at pH values of ≈8 and for MNPs concentrations of 1 g/L. The use of a permanent magnetic field (0.33 T) showed an increase of COD and BOD<sub>5</sub> removal from 61% to 76% and from 63% to 78%, respectively. This enhancement is discussed in terms of the MNPs coagulation induced by the magnetic field and the adsorption of ionic species onto the MNPs surface due to Fe<sub>3</sub>O<sub>4</sub> affinity. |
| first_indexed | 2024-03-11T02:13:39Z |
| format | Article |
| id | doaj.art-97cc809ac05648569e5e7dd15b785c9d |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-11T02:13:39Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-97cc809ac05648569e5e7dd15b785c9d2023-11-18T11:21:58ZengMDPI AGMagnetochemistry2312-74812023-06-019615710.3390/magnetochemistry9060157Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal AgentsHajer Tlili0Anis Elaoud1Nedra Asses2Karima Horchani-Naifer3Mounir Ferhi4Gerardo F. Goya5Jesús Antonio Fuentes-García6Laboratory of Physico-Chemistry of Mineral Materials and Their Applications, National Center for Research in Materials Sciences CNRSM, Technopole Borj Cedria, P.O. Box 73, Soliman 8027, TunisiaHigher Institute of Environmental Sciences and Technologies, Carthage University, P.O. Box 1003, Hammam-Lif 2050, TunisiaHigher Institute of Environmental Sciences and Technologies, Carthage University, P.O. Box 1003, Hammam-Lif 2050, TunisiaLaboratory of Physico-Chemistry of Mineral Materials and Their Applications, National Center for Research in Materials Sciences CNRSM, Technopole Borj Cedria, P.O. Box 73, Soliman 8027, TunisiaLaboratory of Physico-Chemistry of Mineral Materials and Their Applications, National Center for Research in Materials Sciences CNRSM, Technopole Borj Cedria, P.O. Box 73, Soliman 8027, TunisiaDepartamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, SpainDepartamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, SpainMany of the current strategies for removing pollutants from water are based on nanomaterials and nanotechnology. Lower values of Biological Oxygen Demand (BOD<sub>5</sub>) and Chemical Oxygen Demand (COD) in water results in reduction in the amount of oxidizable pollutants. We present a study on the reduction of COD and BOD<sub>5</sub> in water from Wadi El Bey River (Tunisia), using magnetite nanoparticles (MNPs) and magnetic fields. The COD and BOD<sub>5</sub> removal reached values higher than 50% after 60 min, with optimum efficiency at pH values of ≈8 and for MNPs concentrations of 1 g/L. The use of a permanent magnetic field (0.33 T) showed an increase of COD and BOD<sub>5</sub> removal from 61% to 76% and from 63% to 78%, respectively. This enhancement is discussed in terms of the MNPs coagulation induced by the magnetic field and the adsorption of ionic species onto the MNPs surface due to Fe<sub>3</sub>O<sub>4</sub> affinity.https://www.mdpi.com/2312-7481/9/6/157magnetiteBiological Oxygen Demand (BOD<sub>5</sub>)Chemical Oxygen Demand (COD)magnetic field |
| spellingShingle | Hajer Tlili Anis Elaoud Nedra Asses Karima Horchani-Naifer Mounir Ferhi Gerardo F. Goya Jesús Antonio Fuentes-García Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents Magnetochemistry magnetite Biological Oxygen Demand (BOD<sub>5</sub>) Chemical Oxygen Demand (COD) magnetic field |
| title | Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents |
| title_full | Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents |
| title_fullStr | Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents |
| title_full_unstemmed | Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents |
| title_short | Reduction of Oxidizable Pollutants in Waste Water from the Wadi El Bey River Basin Using Magnetic Nanoparticles as Removal Agents |
| title_sort | reduction of oxidizable pollutants in waste water from the wadi el bey river basin using magnetic nanoparticles as removal agents |
| topic | magnetite Biological Oxygen Demand (BOD<sub>5</sub>) Chemical Oxygen Demand (COD) magnetic field |
| url | https://www.mdpi.com/2312-7481/9/6/157 |
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