Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits
Secondary minerals, and mixtures of Fe-Al compounds such as oxohydroxy and hydroxosulfates can be naturally generated from mine water in response to oxidation /bio-oxidation, mixing, evaporation and neutralization processes. Deposits observed in significant quantities, with very high iron content, f...
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| Format: | Article |
| Language: | English |
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Estfalia
2022-06-01
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| Series: | Romanian Journal of Ecology & Environmental Chemistry |
| Subjects: | |
| Online Access: | http://www.rjeec.ro/Read/156?id=Mineral%20precipitates%20from%20mine%20water%20as%20adsorbents%20-Part%20I-%20Site-specific%20characterization%20of%20natural%20deposits |
| _version_ | 1797519511075684352 |
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| author | Laurentiu Razvan Dinu Valeriu Robert Badescu Gabriela Geanina Vasile Ionut Cristea Nicoleta Mirela Marin Ecaterina Anca Serban |
| author_facet | Laurentiu Razvan Dinu Valeriu Robert Badescu Gabriela Geanina Vasile Ionut Cristea Nicoleta Mirela Marin Ecaterina Anca Serban |
| author_sort | Laurentiu Razvan Dinu |
| collection | DOAJ |
| description | Secondary minerals, and mixtures of Fe-Al compounds such as oxohydroxy and hydroxosulfates can be naturally generated from mine water in response to oxidation /bio-oxidation, mixing, evaporation and neutralization processes. Deposits observed in significant quantities, with very high iron content, from the mining perimeters of Certej-Coranda, Rosia Montana, and Boita Hateg were sampled and characterized. Schwertmannite and Goethite can function as adsorbents after drying or further processing. In both cases, the chemical analysis of the product is important in order to promote it to potential users. A preliminary evaluation of the adsorption capacity for As(III) was performed for the original material and for products obtained after calcination. Depending on calcination temperature, adsorption capacity decreases, and a leveling effect can be observed, most probably due to pore sinterizing and transformation to hematite, irrespective of the initial mineral. |
| first_indexed | 2024-03-10T07:42:52Z |
| format | Article |
| id | doaj.art-b8cb35f94c574ea890ea759d65b7e8cc |
| institution | Directory Open Access Journal |
| issn | 2668-5418 2668-8530 |
| language | English |
| last_indexed | 2024-03-10T07:42:52Z |
| publishDate | 2022-06-01 |
| publisher | Estfalia |
| record_format | Article |
| series | Romanian Journal of Ecology & Environmental Chemistry |
| spelling | doaj.art-b8cb35f94c574ea890ea759d65b7e8cc2023-11-22T12:53:31ZengEstfaliaRomanian Journal of Ecology & Environmental Chemistry2668-54182668-85302022-06-01413844https://doi.org/10.21698/rjeec.2022.104Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural depositsLaurentiu Razvan Dinu0https://orcid.org/0000-0001-9681-9691Valeriu Robert Badescu1Gabriela Geanina Vasile2https://orcid.org/0000-0001-7876-4420Ionut Cristea3https://orcid.org/0000-0003-1147-5928Nicoleta Mirela Marin4https://orcid.org/0000-0002-9145-7502Ecaterina Anca Serban5https://orcid.org/0000-0001-7728-0440National Research and Development Institute for Industrial Ecology ECOINDNational Research and Development Institute for Industrial Ecology ECOINDNational Research and Development Institute for Industrial Ecology ECOINDNational Research and Development Institute for Industrial Ecology ECOINDNational Research and Development Institute for Industrial Ecology ECOINDNational Research and Development Institute for Industrial Ecology ECOINDSecondary minerals, and mixtures of Fe-Al compounds such as oxohydroxy and hydroxosulfates can be naturally generated from mine water in response to oxidation /bio-oxidation, mixing, evaporation and neutralization processes. Deposits observed in significant quantities, with very high iron content, from the mining perimeters of Certej-Coranda, Rosia Montana, and Boita Hateg were sampled and characterized. Schwertmannite and Goethite can function as adsorbents after drying or further processing. In both cases, the chemical analysis of the product is important in order to promote it to potential users. A preliminary evaluation of the adsorption capacity for As(III) was performed for the original material and for products obtained after calcination. Depending on calcination temperature, adsorption capacity decreases, and a leveling effect can be observed, most probably due to pore sinterizing and transformation to hematite, irrespective of the initial mineral.http://www.rjeec.ro/Read/156?id=Mineral%20precipitates%20from%20mine%20water%20as%20adsorbents%20-Part%20I-%20Site-specific%20characterization%20of%20natural%20depositsmine waterschwertmannitearsenic adsorption |
| spellingShingle | Laurentiu Razvan Dinu Valeriu Robert Badescu Gabriela Geanina Vasile Ionut Cristea Nicoleta Mirela Marin Ecaterina Anca Serban Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits Romanian Journal of Ecology & Environmental Chemistry mine water schwertmannite arsenic adsorption |
| title | Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits |
| title_full | Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits |
| title_fullStr | Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits |
| title_full_unstemmed | Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits |
| title_short | Mineral precipitates from mine water as adsorbents -Part I- Site-specific characterization of natural deposits |
| title_sort | mineral precipitates from mine water as adsorbents part i site specific characterization of natural deposits |
| topic | mine water schwertmannite arsenic adsorption |
| url | http://www.rjeec.ro/Read/156?id=Mineral%20precipitates%20from%20mine%20water%20as%20adsorbents%20-Part%20I-%20Site-specific%20characterization%20of%20natural%20deposits |
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