Removal of some organic dyes by hexane-extracted spent bleaching earth
The removal of some organic dyes from aqueous solution by hexane-extracted spent bleaching earth, a waste material from the palm oil industry, was investigated. It was noted that the material had better affinity for basic than acid dyes. Various parameters affecting the removal process were studied....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
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SCI
1997
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| Online Access: | http://psasir.upm.edu.my/id/eprint/51102/ http://psasir.upm.edu.my/id/eprint/51102/1/51102.pdf http://psasir.upm.edu.my/id/eprint/51102/7/J%20of%20Chemical%20Tech%20%20%20Biotech%20-%201999%20-%20Lee%20-%20Removal%20of%20Some%20Organic%20Dyes%20by%20Hexane%E2%80%90Extracted%20Spent%20Bleaching%20Earth.pdf |
| _version_ | 1848851741924130816 |
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| author | Lee, Chnoong Kheng Low, Kun She Chung, Lai Ching |
| author_facet | Lee, Chnoong Kheng Low, Kun She Chung, Lai Ching |
| author_sort | Lee, Chnoong Kheng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The removal of some organic dyes from aqueous solution by hexane-extracted spent bleaching earth, a waste material from the palm oil industry, was investigated. It was noted that the material had better affinity for basic than acid dyes. Various parameters affecting the removal process were studied. These were pH, initial dye concentration, sorbent dosage, temperature and agitation rate in the batch process. Experimental data show that both the boundary layer and intraparticle diffusion effect play important roles in the rate of dye removal. Maximum sorption capacities for some basic and acid dyes studied compare favourably with those reported using other low-cost sorbents. |
| first_indexed | 2025-11-15T10:27:01Z |
| format | Article |
| id | upm-51102 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T10:27:01Z |
| publishDate | 1997 |
| publisher | SCI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-511022024-07-26T07:36:59Z http://psasir.upm.edu.my/id/eprint/51102/ Removal of some organic dyes by hexane-extracted spent bleaching earth Lee, Chnoong Kheng Low, Kun She Chung, Lai Ching The removal of some organic dyes from aqueous solution by hexane-extracted spent bleaching earth, a waste material from the palm oil industry, was investigated. It was noted that the material had better affinity for basic than acid dyes. Various parameters affecting the removal process were studied. These were pH, initial dye concentration, sorbent dosage, temperature and agitation rate in the batch process. Experimental data show that both the boundary layer and intraparticle diffusion effect play important roles in the rate of dye removal. Maximum sorption capacities for some basic and acid dyes studied compare favourably with those reported using other low-cost sorbents. SCI 1997 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/51102/1/51102.pdf text en http://psasir.upm.edu.my/id/eprint/51102/7/J%20of%20Chemical%20Tech%20%20%20Biotech%20-%201999%20-%20Lee%20-%20Removal%20of%20Some%20Organic%20Dyes%20by%20Hexane%E2%80%90Extracted%20Spent%20Bleaching%20Earth.pdf Lee, Chnoong Kheng and Low, Kun She and Chung, Lai Ching (1997) Removal of some organic dyes by hexane-extracted spent bleaching earth. Journal of Chemical Technology and Biotechnology, 69 (1). pp. 93-99. ISSN 0268-2575 http://onlinelibrary.wiley.com/wol1/doi/10.1002/(SICI)1097-4660(199705)69:1%3C93::AID-JCTB672%3E3.0.CO;2-3/abstract 10.1002/(SICI)1097-4660(199705)69:1<93::AID-JCTB672>3.0.CO;2-3 |
| spellingShingle | Lee, Chnoong Kheng Low, Kun She Chung, Lai Ching Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title | Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title_full | Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title_fullStr | Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title_full_unstemmed | Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title_short | Removal of some organic dyes by hexane-extracted spent bleaching earth |
| title_sort | removal of some organic dyes by hexane-extracted spent bleaching earth |
| url | http://psasir.upm.edu.my/id/eprint/51102/ http://psasir.upm.edu.my/id/eprint/51102/ http://psasir.upm.edu.my/id/eprint/51102/ http://psasir.upm.edu.my/id/eprint/51102/1/51102.pdf http://psasir.upm.edu.my/id/eprint/51102/7/J%20of%20Chemical%20Tech%20%20%20Biotech%20-%201999%20-%20Lee%20-%20Removal%20of%20Some%20Organic%20Dyes%20by%20Hexane%E2%80%90Extracted%20Spent%20Bleaching%20Earth.pdf |