Column study on the sorption of Cr(VI) using quaternized rice hulls
The potential of quaternized rice hulls in removing Cr(VI) from synthetic solution, chrome electroplating waste and wood preservative waste was investigated in column experiments. Increase in column bed depth resulted in a longer service time at C(t)/C0 = 0.5 breakthrough. The presence of SO2−4, whi...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Science
1999
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/58569/ http://psasir.upm.edu.my/id/eprint/58569/1/Column%20study%20on%20the%20sorption%20of%20Cr%28VI%29%20using%20quaternized%20rice%20hulls.pdf http://psasir.upm.edu.my/id/eprint/58569/7/1-s2.0-S096085249800128X-main.pdf |
| _version_ | 1848853683044876288 |
|---|---|
| author | Low, Kun She Lee, Chnoong Kheng Ng, A. Y. |
| author_facet | Low, Kun She Lee, Chnoong Kheng Ng, A. Y. |
| author_sort | Low, Kun She |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The potential of quaternized rice hulls in removing Cr(VI) from synthetic solution, chrome electroplating waste and wood preservative waste was investigated in column experiments. Increase in column bed depth resulted in a longer service time at C(t)/C0 = 0.5 breakthrough. The presence of SO2−4, which is commonly present in the wastes, interfered with the sorption process and resulted in earlier breakthrough. The sorption process was flow-rate independent within the scope of this study. In the regeneration study, Cr(VI) could be recovered almost quantitatively by eluting with a 0.5 M NaOH solution and the column could be used repeatedly for at least five cycles. |
| first_indexed | 2025-11-15T10:57:52Z |
| format | Article |
| id | upm-58569 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T10:57:52Z |
| publishDate | 1999 |
| publisher | Elsevier Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-585692024-07-25T06:36:39Z http://psasir.upm.edu.my/id/eprint/58569/ Column study on the sorption of Cr(VI) using quaternized rice hulls Low, Kun She Lee, Chnoong Kheng Ng, A. Y. The potential of quaternized rice hulls in removing Cr(VI) from synthetic solution, chrome electroplating waste and wood preservative waste was investigated in column experiments. Increase in column bed depth resulted in a longer service time at C(t)/C0 = 0.5 breakthrough. The presence of SO2−4, which is commonly present in the wastes, interfered with the sorption process and resulted in earlier breakthrough. The sorption process was flow-rate independent within the scope of this study. In the regeneration study, Cr(VI) could be recovered almost quantitatively by eluting with a 0.5 M NaOH solution and the column could be used repeatedly for at least five cycles. Elsevier Science 1999 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/58569/1/Column%20study%20on%20the%20sorption%20of%20Cr%28VI%29%20using%20quaternized%20rice%20hulls.pdf text en http://psasir.upm.edu.my/id/eprint/58569/7/1-s2.0-S096085249800128X-main.pdf Low, Kun She and Lee, Chnoong Kheng and Ng, A. Y. (1999) Column study on the sorption of Cr(VI) using quaternized rice hulls. Bioresource Technology, 68 (2). pp. 205-208. ISSN 0960-8524 http://www.sciencedirect.com/science/article/pii/S096085249800128X 10.1016/S0960-8524(98)00128-X |
| spellingShingle | Low, Kun She Lee, Chnoong Kheng Ng, A. Y. Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title | Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title_full | Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title_fullStr | Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title_full_unstemmed | Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title_short | Column study on the sorption of Cr(VI) using quaternized rice hulls |
| title_sort | column study on the sorption of cr(vi) using quaternized rice hulls |
| url | http://psasir.upm.edu.my/id/eprint/58569/ http://psasir.upm.edu.my/id/eprint/58569/ http://psasir.upm.edu.my/id/eprint/58569/ http://psasir.upm.edu.my/id/eprint/58569/1/Column%20study%20on%20the%20sorption%20of%20Cr%28VI%29%20using%20quaternized%20rice%20hulls.pdf http://psasir.upm.edu.my/id/eprint/58569/7/1-s2.0-S096085249800128X-main.pdf |