Quaternized wood as sorbent for hexavalent chromium
The potential of quaternized wood (QW) chips in removing hexavalent chromium from synthetic solution and chrome waste under both batch and continuous-flow conditions was investigated. Sorption was found to be dependent on pH, metal concentration, and temperature. QW chips provide higher sorption cap...
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| Format: | Article |
| Language: | English English |
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Humana Press
2001
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42207/ http://psasir.upm.edu.my/id/eprint/42207/1/Quaternized%20wood%20as%20sorbent%20for%20hexavalent%20chromium.pdf http://psasir.upm.edu.my/id/eprint/42207/7/ABAB_90_1_75.pdf |
| _version_ | 1848849902692466688 |
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| author | Low, Kun She Lee, Chnoong Kheng Lee, Chun Yuan |
| author_facet | Low, Kun She Lee, Chnoong Kheng Lee, Chun Yuan |
| author_sort | Low, Kun She |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The potential of quaternized wood (QW) chips in removing hexavalent chromium from synthetic solution and chrome waste under both batch and continuous-flow conditions was investigated. Sorption was found to be dependent on pH, metal concentration, and temperature. QW chips provide higher sorption capacity and wider pH range compared with untreated wood chips. The equilibrium data could be fitted into the Langmuir isotherm model, and maximum sorption capacities were calculated to be 27.03 and 25.77 mg/g in synthetic chromate solution and chrome waste, respectively. The presence of sulfate in high concentration appeared to suppress the uptake of chromium by QW chips. Column studies showed that bed depth influenced the breakthrough time greatly whereas flow rate of influent had little effect on its sorption on the column. |
| first_indexed | 2025-11-15T09:57:47Z |
| format | Article |
| id | upm-42207 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:57:47Z |
| publishDate | 2001 |
| publisher | Humana Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-422072024-08-07T00:14:25Z http://psasir.upm.edu.my/id/eprint/42207/ Quaternized wood as sorbent for hexavalent chromium Low, Kun She Lee, Chnoong Kheng Lee, Chun Yuan The potential of quaternized wood (QW) chips in removing hexavalent chromium from synthetic solution and chrome waste under both batch and continuous-flow conditions was investigated. Sorption was found to be dependent on pH, metal concentration, and temperature. QW chips provide higher sorption capacity and wider pH range compared with untreated wood chips. The equilibrium data could be fitted into the Langmuir isotherm model, and maximum sorption capacities were calculated to be 27.03 and 25.77 mg/g in synthetic chromate solution and chrome waste, respectively. The presence of sulfate in high concentration appeared to suppress the uptake of chromium by QW chips. Column studies showed that bed depth influenced the breakthrough time greatly whereas flow rate of influent had little effect on its sorption on the column. Humana Press 2001 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/42207/1/Quaternized%20wood%20as%20sorbent%20for%20hexavalent%20chromium.pdf text en http://psasir.upm.edu.my/id/eprint/42207/7/ABAB_90_1_75.pdf Low, Kun She and Lee, Chnoong Kheng and Lee, Chun Yuan (2001) Quaternized wood as sorbent for hexavalent chromium. Applied Biochemistry and Biotechnology, 90 (1). pp. 75-87. ISSN 0273-2289; ESSN: 1559-0291 http://link.springer.com/article/10.1385%2FABAB%3A90%3A1%3A75 10.1385/ABAB:90:1:75 |
| spellingShingle | Low, Kun She Lee, Chnoong Kheng Lee, Chun Yuan Quaternized wood as sorbent for hexavalent chromium |
| title | Quaternized wood as sorbent for hexavalent chromium |
| title_full | Quaternized wood as sorbent for hexavalent chromium |
| title_fullStr | Quaternized wood as sorbent for hexavalent chromium |
| title_full_unstemmed | Quaternized wood as sorbent for hexavalent chromium |
| title_short | Quaternized wood as sorbent for hexavalent chromium |
| title_sort | quaternized wood as sorbent for hexavalent chromium |
| url | http://psasir.upm.edu.my/id/eprint/42207/ http://psasir.upm.edu.my/id/eprint/42207/ http://psasir.upm.edu.my/id/eprint/42207/ http://psasir.upm.edu.my/id/eprint/42207/1/Quaternized%20wood%20as%20sorbent%20for%20hexavalent%20chromium.pdf http://psasir.upm.edu.my/id/eprint/42207/7/ABAB_90_1_75.pdf |