Hazardous arsenite removal from water by calcined Fe-hydrotalcite
This study is aimed at using calcined Fe-Hydrotalcite (CFeHT) in removing arsenite (As(III)) from water. The arsenic concentration of solutions containing 1000 μg/L As(III) in adsorption studies was reduced below the permissible value (10 μg/L) with 2 g/L CFeHT for As(III). The effect of initial pH...
| Päätekijät: | , , |
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| Aineistotyyppi: | Artikkeli |
| Kieli: | English |
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Elsevier
2024-01-01
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| Sarja: | Desalination and Water Treatment |
| Aiheet: | |
| Linkit: | http://www.sciencedirect.com/science/article/pii/S1944398624001322 |
| _version_ | 1826580258905653248 |
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| author | Taha Boyraz Tuğba Türk İbrahim Alp |
| author_facet | Taha Boyraz Tuğba Türk İbrahim Alp |
| author_sort | Taha Boyraz |
| collection | DOAJ |
| description | This study is aimed at using calcined Fe-Hydrotalcite (CFeHT) in removing arsenite (As(III)) from water. The arsenic concentration of solutions containing 1000 μg/L As(III) in adsorption studies was reduced below the permissible value (10 μg/L) with 2 g/L CFeHT for As(III). The effect of initial pH on adsorption was limited, and arsenic adsorption occurred relatively quickly under the pseudo-second-order kinetic model. In equilibrium isotherm studies, experimental data were consistent with Langmuir isotherm. Also, we clarified that CFeHT can be reused with proper treatments such as desorption and revivification. Competitive ions such as B(OH)42 did not significantly affect arsenic adsorption. It was determined that the adsorption process with CFeHT has high selectivity towards arsenic and is not affected by high amounts of borate anions in water. As a result of the regeneration tests, the arsenic removal efficiency from the solution containing As(III) was 62% at the end of the fourth cycle. This study reveals the great potential of CFeHT in removing arsenite contamination from groundwater originating from mines, especially from boron mines. |
| first_indexed | 2025-03-14T14:31:19Z |
| format | Article |
| id | doaj.art-dad50387f1ba4e27945ccc9d4bfe37ba |
| institution | Directory Open Access Journal |
| issn | 1944-3986 |
| language | English |
| last_indexed | 2025-03-14T14:31:19Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj.art-dad50387f1ba4e27945ccc9d4bfe37ba2025-02-26T08:13:35ZengElsevierDesalination and Water Treatment1944-39862024-01-01317100111Hazardous arsenite removal from water by calcined Fe-hydrotalciteTaha Boyraz0Tuğba Türk1İbrahim Alp2Karadeniz Technical University, Department of Mining Engineering, 61080 Trabzon, TurkeyCorresponding author.; Karadeniz Technical University, Department of Mining Engineering, 61080 Trabzon, TurkeyKaradeniz Technical University, Department of Mining Engineering, 61080 Trabzon, TurkeyThis study is aimed at using calcined Fe-Hydrotalcite (CFeHT) in removing arsenite (As(III)) from water. The arsenic concentration of solutions containing 1000 μg/L As(III) in adsorption studies was reduced below the permissible value (10 μg/L) with 2 g/L CFeHT for As(III). The effect of initial pH on adsorption was limited, and arsenic adsorption occurred relatively quickly under the pseudo-second-order kinetic model. In equilibrium isotherm studies, experimental data were consistent with Langmuir isotherm. Also, we clarified that CFeHT can be reused with proper treatments such as desorption and revivification. Competitive ions such as B(OH)42 did not significantly affect arsenic adsorption. It was determined that the adsorption process with CFeHT has high selectivity towards arsenic and is not affected by high amounts of borate anions in water. As a result of the regeneration tests, the arsenic removal efficiency from the solution containing As(III) was 62% at the end of the fourth cycle. This study reveals the great potential of CFeHT in removing arsenite contamination from groundwater originating from mines, especially from boron mines.http://www.sciencedirect.com/science/article/pii/S1944398624001322Arsenite removalFe-Hydrotalcite (FeHT)CalcinationBoron oreRegeneration |
| spellingShingle | Taha Boyraz Tuğba Türk İbrahim Alp Hazardous arsenite removal from water by calcined Fe-hydrotalcite Desalination and Water Treatment Arsenite removal Fe-Hydrotalcite (FeHT) Calcination Boron ore Regeneration |
| title | Hazardous arsenite removal from water by calcined Fe-hydrotalcite |
| title_full | Hazardous arsenite removal from water by calcined Fe-hydrotalcite |
| title_fullStr | Hazardous arsenite removal from water by calcined Fe-hydrotalcite |
| title_full_unstemmed | Hazardous arsenite removal from water by calcined Fe-hydrotalcite |
| title_short | Hazardous arsenite removal from water by calcined Fe-hydrotalcite |
| title_sort | hazardous arsenite removal from water by calcined fe hydrotalcite |
| topic | Arsenite removal Fe-Hydrotalcite (FeHT) Calcination Boron ore Regeneration |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624001322 |
| work_keys_str_mv | AT tahaboyraz hazardousarseniteremovalfromwaterbycalcinedfehydrotalcite AT tugbaturk hazardousarseniteremovalfromwaterbycalcinedfehydrotalcite AT ibrahimalp hazardousarseniteremovalfromwaterbycalcinedfehydrotalcite |