| Autor: |
Mohamed Noor, M. H., Wong, S., Ngadi, N., Mohammed Inuwa, I., Opotu, L. A. |
| Předmět: |
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| Zdroj: |
International Journal of Environmental Science & Technology (IJEST); Jul2022, Vol. 19 Issue 7, p6935-6956, 22p |
| Abstrakt: |
In this study, a systematic review was performed based on the publications, which report applications of magnetic nanoparticles in coagulation/flocculation technology for water treatment. Through a series of screening steps, eight themes were developed, which composed of 62 relevant articles. The application of magnetic coagulant/flocculant and their effectiveness in water treatment were discussed based on the themes. The findings explained the roles and benefits of integrating magnetic nanoparticles in coagulation/flocculation in water treatment process, as follows: (1) ability to reduce the utilization of conventional coagulant/flocculant due to high charge density provides by magnetic nanoparticles (Fe2+ and Fe3+); (2) shorten the duration of coagulation/flocculation process due to magnetic dipole attraction between magnetic nanoparticles and destabilized pollutants; and (3) recovery of used/exhausted magnetic coagulant/flocculant can be achieved using an external magnetic field, thus reducing materials cost. In-depth studies on magnetic flocs physico-chemical characteristics are recommended for further studies to enable the understanding of the fundamental mechanism of the coagulation/flocculation process. The toxicological and economic implications related to magnetic coagulation/flocculation applications in wastewater treatment are also recommended for investigation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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