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- 01JHT9G0VQWKQAB4NPJREDSS5T classification A1.
- 01JHT9G0VQWKQAB4NPJREDSS5T date "2025".
- 01JHT9G0VQWKQAB4NPJREDSS5T language "eng".
- 01JHT9G0VQWKQAB4NPJREDSS5T type journalArticle.
- 01JHT9G0VQWKQAB4NPJREDSS5T hasPart 01JJ1SJKXY8FHRQN89S1YHAVRD.pdf.
- 01JHT9G0VQWKQAB4NPJREDSS5T subject "Earth and Environmental Sciences".
- 01JHT9G0VQWKQAB4NPJREDSS5T subject "Technology and Engineering".
- 01JHT9G0VQWKQAB4NPJREDSS5T doi "10.1016/j.desal.2024.118152".
- 01JHT9G0VQWKQAB4NPJREDSS5T issn "0011-9164".
- 01JHT9G0VQWKQAB4NPJREDSS5T issn "1873-4464".
- 01JHT9G0VQWKQAB4NPJREDSS5T volume "593".
- 01JHT9G0VQWKQAB4NPJREDSS5T abstract "Selenium (Se) and chromium (Cr) in water might be harmful because of their high toxicity in the aquatic environment. Efficient removal of their hexavalent forms (Se(VI) and Cr(VI)) from extreme acidic wastewater is still challenging. Therefore, several new hydrochars suited for efficient removal of trace Se(VI) and Cr(VI) from acidic wastewater were fabricated from biomass through a hydrothermal method. Most functional groups were retained in the hydrochar, which gave it an excellent adsorption capacity (43.2 mg<middle dot>g(-1) and 132 mg<middle dot>g(-1) for Se(VI) and Cr(VI), respectively). After one batch treatment at exceptionally low pH and a hydrochar dose of 0.2 g<middle dot>L-1, Se(VI) and Cr(VI) could be removed from 1 mg<middle dot>L-1 to 6 mu g<middle dot>L-1 and 15 mu g<middle dot>L-1, respectively. The mechanism of adsorption at various pH was elucidated by Scanning Electron Microscopy, Thermogravimetry, Fourier Transform Infrared Spectrometer, X-Ray Photoelectron Spectroscopy and density functional theory (DFT) calculation. The adsorption mechanism for Se(VI) in acidic solution involved the binding of SeO42- with protonated amino groups (-NH3+) of Mix hydrochar. In the pH range of 6.5 to 7, Cr(VI) combined with -NH3+ functional groups primarily in the form of CrO42-. When the pH fell below 6.5, Cr(VI) bound with both -NH3<bold>+</bold> and carbonyl groups (-C=O) in the form of HCrO4-. Fast kinetics were observed during the removal process of Se(VI) and Cr(VI). The hydrochar adsorbent showed good stability in acidic environments and during many adsorption cycles. These findings provide theoretical basis for design of adsorption materials for acidic wastewater treatment.".
- 01JHT9G0VQWKQAB4NPJREDSS5T author 6ce72177-44f9-11ed-888b-b23d10934a7a.
- 01JHT9G0VQWKQAB4NPJREDSS5T author F60CAC7A-F0ED-11E1-A9DE-61C894A0A6B4.
- 01JHT9G0VQWKQAB4NPJREDSS5T author urn:uuid:2288b3ac-c0ff-4cda-a7ea-61cc037d6f34.
- 01JHT9G0VQWKQAB4NPJREDSS5T author urn:uuid:d357393d-15e9-4da7-8780-38434c7b971e.
- 01JHT9G0VQWKQAB4NPJREDSS5T dateCreated "2025-01-17T14:08:26Z".
- 01JHT9G0VQWKQAB4NPJREDSS5T dateModified "2025-01-20T12:05:07Z".
- 01JHT9G0VQWKQAB4NPJREDSS5T name "Hydrochar produced from mixed feedstocks as efficient adsorbent for selenium and chromium removal from acidic wastewater".
- 01JHT9G0VQWKQAB4NPJREDSS5T pagination urn:uuid:d2db4c52-9231-4a64-b306-a1686b4ce552.
- 01JHT9G0VQWKQAB4NPJREDSS5T sameAs LU-01JHT9G0VQWKQAB4NPJREDSS5T.
- 01JHT9G0VQWKQAB4NPJREDSS5T sourceOrganization urn:uuid:3df2d67b-b7ea-4181-ba51-b1f16f380fd7.
- 01JHT9G0VQWKQAB4NPJREDSS5T type A1.