Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin
The removal of thiocyanate, a toxic anion originating in a large number of industrial processes, from aqueous solutions was investigated using adsorbents of different natures (activated carbon, zeolite, diatomite, sepiolite, hydrotalcite, steel-making residues). The uptake of thiocyanate anions did...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
2010-11-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.28.8-9.705 |
| _version_ | 1797285123865968640 |
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| author | Noelia V. Aguirre Beatriz Padilla Vivas Miguel A. Montes-Morán Conchi O. Ania |
| author_facet | Noelia V. Aguirre Beatriz Padilla Vivas Miguel A. Montes-Morán Conchi O. Ania |
| author_sort | Noelia V. Aguirre |
| collection | DOAJ |
| description | The removal of thiocyanate, a toxic anion originating in a large number of industrial processes, from aqueous solutions was investigated using adsorbents of different natures (activated carbon, zeolite, diatomite, sepiolite, hydrotalcite, steel-making residues). The uptake of thiocyanate anions did not seem to be directly related to the porous features of the adsorbents, but rather connected to the ion–adsorbent affinity. The highest retention in synthetic solutions was obtained with hydrotalcite, followed by activated carbon, zeolite and the steel-making slags. In real wastewater, the removal efficiency of hydrotalcite relative to industrial wastewater was largely suppressed due to the organic matter present. In contrast, the retention ability of the activated carbon and the slags was less modified in real wastewater due to their open porous networks. These results indicate that steel-making slag could be used as a potential adsorbent for the removal of thiocyanate anions from real wastewater produced in coke-making processes without any additional processing. |
| first_indexed | 2024-03-07T17:57:45Z |
| format | Article |
| id | doaj.art-67a7c68919fc40518e9d0cd6e0018cc8 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:57:45Z |
| publishDate | 2010-11-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-67a7c68919fc40518e9d0cd6e0018cc82024-03-02T11:37:06ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382010-11-012810.1260/0263-6174.28.8-9.705Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various OriginNoelia V. Aguirre0Beatriz Padilla Vivas1Miguel A. Montes-Morán2Conchi O. Ania3 Instituto Nacional del Carbón (INCAR-CSIC), C/Francisco Pintado Fe, 26, 33011 Oviedo, Spain ArcelorMittal Asturias (Gijon), Verina de Abajo 570, 33200 Gijon, Spain Instituto Nacional del Carbón (INCAR-CSIC), C/Francisco Pintado Fe, 26, 33011 Oviedo, Spain Instituto Nacional del Carbón (INCAR-CSIC), C/Francisco Pintado Fe, 26, 33011 Oviedo, SpainThe removal of thiocyanate, a toxic anion originating in a large number of industrial processes, from aqueous solutions was investigated using adsorbents of different natures (activated carbon, zeolite, diatomite, sepiolite, hydrotalcite, steel-making residues). The uptake of thiocyanate anions did not seem to be directly related to the porous features of the adsorbents, but rather connected to the ion–adsorbent affinity. The highest retention in synthetic solutions was obtained with hydrotalcite, followed by activated carbon, zeolite and the steel-making slags. In real wastewater, the removal efficiency of hydrotalcite relative to industrial wastewater was largely suppressed due to the organic matter present. In contrast, the retention ability of the activated carbon and the slags was less modified in real wastewater due to their open porous networks. These results indicate that steel-making slag could be used as a potential adsorbent for the removal of thiocyanate anions from real wastewater produced in coke-making processes without any additional processing.https://doi.org/10.1260/0263-6174.28.8-9.705 |
| spellingShingle | Noelia V. Aguirre Beatriz Padilla Vivas Miguel A. Montes-Morán Conchi O. Ania Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin Adsorption Science & Technology |
| title | Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin |
| title_full | Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin |
| title_fullStr | Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin |
| title_full_unstemmed | Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin |
| title_short | Adsorption of Thiocyanate Anions from Aqueous Solution onto Adsorbents of Various Origin |
| title_sort | adsorption of thiocyanate anions from aqueous solution onto adsorbents of various origin |
| url | https://doi.org/10.1260/0263-6174.28.8-9.705 |
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