Removal of basic and reactive dyes using ethylenediamine modified rice hull
Wastewaters from textile industries may contain a variety of dyes that have to be removed before their discharge into waterways. Rice hull, an agricultural by-product, was modified using ethylenediamine to introduce active sites on its surface to enable it to function as a sorbent for both basic and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/40202/ http://psasir.upm.edu.my/id/eprint/40202/1/Removal%20of%20basic%20and%20reactive%20dyes%20using%20ethylenediamine%20modified%20rice%20hull.pdf |
| _version_ | 1848849359263760384 |
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| author | Ong, Siew Teng Lee, Chnoong Kheng Zainal, Zulkarnain |
| author_facet | Ong, Siew Teng Lee, Chnoong Kheng Zainal, Zulkarnain |
| author_sort | Ong, Siew Teng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Wastewaters from textile industries may contain a variety of dyes that have to be removed before their discharge into waterways. Rice hull, an agricultural by-product, was modified using ethylenediamine to introduce active sites on its surface to enable it to function as a sorbent for both basic and reactive dyes. The sorption characteristics of Basic Blue 3 (BB3) and Reactive Orange 16 (RO16) by ethylenediamine modified rice hull (MRH) were studied under various experimental conditions. Sorption was pH and concentration dependent. Simultaneous removal of BB3 and RO16 occurred at pH greater than 4. The kinetics of dye sorption fitted a pseudo-second order rate expression. Increase in agitation rate had no effect on the sorption of BB3 but increased uptake of RO16 on MRH. Decreasing particle size increased the uptake of dyes in binary dye solutions. Equilibrium data could be fitted into both the Langmuir and Freundlich isotherms. Maximum sorption capacities calculated from the Langmuir model are 14.68 and 60.24 mg/g for BB3 and RO16, respectively in binary dye solutions. This corresponds to an enhancement of 4.5 and 2.4 fold, respectively, compared to single dye solutions. MRH therefore has the potential of being used as an efficient sorbent for the removal of both dyes in textile wastewaters. |
| first_indexed | 2025-11-15T09:49:08Z |
| format | Article |
| id | upm-40202 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:49:08Z |
| publishDate | 2007 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-402022015-09-14T03:02:12Z http://psasir.upm.edu.my/id/eprint/40202/ Removal of basic and reactive dyes using ethylenediamine modified rice hull Ong, Siew Teng Lee, Chnoong Kheng Zainal, Zulkarnain Wastewaters from textile industries may contain a variety of dyes that have to be removed before their discharge into waterways. Rice hull, an agricultural by-product, was modified using ethylenediamine to introduce active sites on its surface to enable it to function as a sorbent for both basic and reactive dyes. The sorption characteristics of Basic Blue 3 (BB3) and Reactive Orange 16 (RO16) by ethylenediamine modified rice hull (MRH) were studied under various experimental conditions. Sorption was pH and concentration dependent. Simultaneous removal of BB3 and RO16 occurred at pH greater than 4. The kinetics of dye sorption fitted a pseudo-second order rate expression. Increase in agitation rate had no effect on the sorption of BB3 but increased uptake of RO16 on MRH. Decreasing particle size increased the uptake of dyes in binary dye solutions. Equilibrium data could be fitted into both the Langmuir and Freundlich isotherms. Maximum sorption capacities calculated from the Langmuir model are 14.68 and 60.24 mg/g for BB3 and RO16, respectively in binary dye solutions. This corresponds to an enhancement of 4.5 and 2.4 fold, respectively, compared to single dye solutions. MRH therefore has the potential of being used as an efficient sorbent for the removal of both dyes in textile wastewaters. Elsevier 2007-11 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/40202/1/Removal%20of%20basic%20and%20reactive%20dyes%20using%20ethylenediamine%20modified%20rice%20hull.pdf Ong, Siew Teng and Lee, Chnoong Kheng and Zainal, Zulkarnain (2007) Removal of basic and reactive dyes using ethylenediamine modified rice hull. Bioresource Technology, 98 (15). pp. 2792-2799. ISSN 0960-8524; ESSN: 1873-2976 http://www.sciencedirect.com/science/article/pii/S0960852406002082 10.1016/j.biortech.2006.05.011 |
| spellingShingle | Ong, Siew Teng Lee, Chnoong Kheng Zainal, Zulkarnain Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title | Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title_full | Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title_fullStr | Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title_full_unstemmed | Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title_short | Removal of basic and reactive dyes using ethylenediamine modified rice hull |
| title_sort | removal of basic and reactive dyes using ethylenediamine modified rice hull |
| url | http://psasir.upm.edu.my/id/eprint/40202/ http://psasir.upm.edu.my/id/eprint/40202/ http://psasir.upm.edu.my/id/eprint/40202/ http://psasir.upm.edu.my/id/eprint/40202/1/Removal%20of%20basic%20and%20reactive%20dyes%20using%20ethylenediamine%20modified%20rice%20hull.pdf |