Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization
To investigate the removal of Congo red (CR) from an aqueous solution using cassava residue, a novel process incorporating adsorption and in vivo decolorization was proposed. The conditions and characteristics of CR adsorption on cassava residue were investigated by batch adsorption experiments. Lan...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2014-09-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_6682_Li_Cassava_Residue_Congo_Red |
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| author | Hui-Xing Li Rui-Jing Zhang Lei Tang Jian-Hua Zhang Zhong-Gui Mao |
| author_facet | Hui-Xing Li Rui-Jing Zhang Lei Tang Jian-Hua Zhang Zhong-Gui Mao |
| author_sort | Hui-Xing Li |
| collection | DOAJ |
| description | To investigate the removal of Congo red (CR) from an aqueous solution using cassava residue, a novel process incorporating adsorption and in vivo decolorization was proposed. The conditions and characteristics of CR adsorption on cassava residue were investigated by batch adsorption experiments. Langmuir and pseudo-second order models were found to fit well with the data of equilibrium adsorption and kinetics adsorption, respectively. The adsorption was affected considerably by the adsorbent (cassava residue) dosage and CR concentration. The maximum adsorptive capacity was 59.2 mg/g (mCR/mcassava residue), calculated by the Langmuir model. Then, CR-loaded cassava residue was further decolorized via an in vivo process by Trametes sp. SYBC-L4. The laccase produced by Trametes sp. SYBC-L4 effectively decolorized CR, which was revealed by native polyacrylamide gel electrophoresis. The moisture content affected the performance of in vivo decolorization considerably. Decolorization of 81.6 ± 2.4% was achieved under the conditions of pH 5.5, temperature 30 °C, and moisture content of 60% after 16 days of cultivation. Moreover, analyses of Fourier transform infrared spectroscopy and scanning electron microscopy indicated that the carbonyl (C=O), hydroxyl (-OH), and amino (-NH) groups in cassava residue were the potential adsorption sites for interaction with CR and that the structure of cassava residue was modified in the process of in vivo decolorization. |
| first_indexed | 2024-12-11T09:04:07Z |
| format | Article |
| id | doaj.art-4821c485df4a4adeaf29cfa2e2ca6f18 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-11T09:04:07Z |
| publishDate | 2014-09-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-4821c485df4a4adeaf29cfa2e2ca6f182022-12-22T01:13:40ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-09-01946682669810.15376/biores.9.4.6682-6698Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo DecolorizationHui-Xing Li0Rui-Jing Zhang1Lei Tang2Jian-Hua Zhang3Zhong-Gui Mao4The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, P.R. China; ChinaThe Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, P.R. China; ChinaThe Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, P.R. China; ChinaThe Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, P.R. China; ChinaThe Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, P.R. China; ChinaTo investigate the removal of Congo red (CR) from an aqueous solution using cassava residue, a novel process incorporating adsorption and in vivo decolorization was proposed. The conditions and characteristics of CR adsorption on cassava residue were investigated by batch adsorption experiments. Langmuir and pseudo-second order models were found to fit well with the data of equilibrium adsorption and kinetics adsorption, respectively. The adsorption was affected considerably by the adsorbent (cassava residue) dosage and CR concentration. The maximum adsorptive capacity was 59.2 mg/g (mCR/mcassava residue), calculated by the Langmuir model. Then, CR-loaded cassava residue was further decolorized via an in vivo process by Trametes sp. SYBC-L4. The laccase produced by Trametes sp. SYBC-L4 effectively decolorized CR, which was revealed by native polyacrylamide gel electrophoresis. The moisture content affected the performance of in vivo decolorization considerably. Decolorization of 81.6 ± 2.4% was achieved under the conditions of pH 5.5, temperature 30 °C, and moisture content of 60% after 16 days of cultivation. Moreover, analyses of Fourier transform infrared spectroscopy and scanning electron microscopy indicated that the carbonyl (C=O), hydroxyl (-OH), and amino (-NH) groups in cassava residue were the potential adsorption sites for interaction with CR and that the structure of cassava residue was modified in the process of in vivo decolorization.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_6682_Li_Cassava_Residue_Congo_RedCassava residueAdsorptionCongo redDecolorizationLacasse |
| spellingShingle | Hui-Xing Li Rui-Jing Zhang Lei Tang Jian-Hua Zhang Zhong-Gui Mao Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization BioResources Cassava residue Adsorption Congo red Decolorization Lacasse |
| title | Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization |
| title_full | Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization |
| title_fullStr | Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization |
| title_full_unstemmed | Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization |
| title_short | Use of Cassava Residue for the Removal of Congo Red from Aqueous Solution by a Novel Process Incorporating Adsorption and In Vivo Decolorization |
| title_sort | use of cassava residue for the removal of congo red from aqueous solution by a novel process incorporating adsorption and in vivo decolorization |
| topic | Cassava residue Adsorption Congo red Decolorization Lacasse |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_6682_Li_Cassava_Residue_Congo_Red |
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