Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure
The fixed-bed column adsorption-desorption of As(V) by the porous composite of iron oxides and carbon with eucalyptus wood hierarchical microstructure (PC-Fe/C) was experimentally studied. The increase in the influent As(V) concentration and the inflow rate resulted in an earlier exhaustion of the c...
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| Format: | Article |
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Vilnius Gediminas Technical University
2018-03-01
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| Series: | Journal of Environmental Engineering and Landscape Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JEELM/article/view/307 |
| _version_ | 1828941964527009792 |
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| author | Yanhong Li Yinian Zhu Zongqiang Zhu Xuehong Zhang Dunqiu Wang Liwei Xie |
| author_facet | Yanhong Li Yinian Zhu Zongqiang Zhu Xuehong Zhang Dunqiu Wang Liwei Xie |
| author_sort | Yanhong Li |
| collection | DOAJ |
| description | The fixed-bed column adsorption-desorption of As(V) by the porous composite of iron oxides and carbon with eucalyptus wood hierarchical microstructure (PC-Fe/C) was experimentally studied. The increase in the influent As(V) concentration and the inflow rate resulted in an earlier exhaustion of the column. The breakthrough curves indicated that a larger adsorbent mass, a smaller adsorbent grain size and a lower influent pH prolonged the column life span. The operating temperature had negligible effect. All breakthrough curves could be well fitted with the Thomas and Yoon–Nelson models. Under the condition of the influent flow rate of 5.136 mL/min, the influent As(V) concentration of 20 mg/L, the influent pH of 3, the adsorbent mass of 2 g, the adsorbent grain size of <100 mesh, and the operating temperature of 35 °C, the equilibrium adsorption capacity reached 10.49 mg/g, which was greater than those of natural/synthetic iron oxides adsorbents and iron-oxide-coated adsorbents. |
| first_indexed | 2024-12-14T03:46:07Z |
| format | Article |
| id | doaj.art-71cb430c28994ddfa94b1bab0cd24eb7 |
| institution | Directory Open Access Journal |
| issn | 1648-6897 1822-4199 |
| language | English |
| last_indexed | 2024-12-14T03:46:07Z |
| publishDate | 2018-03-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Environmental Engineering and Landscape Management |
| spelling | doaj.art-71cb430c28994ddfa94b1bab0cd24eb72022-12-21T23:18:21ZengVilnius Gediminas Technical UniversityJournal of Environmental Engineering and Landscape Management1648-68971822-41992018-03-0126110.3846/16486897.2017.1346513Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructureYanhong Li0Yinian Zhu1Zongqiang Zhu2Xuehong Zhang3Dunqiu Wang4Liwei Xie5College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, P.R. ChinaThe fixed-bed column adsorption-desorption of As(V) by the porous composite of iron oxides and carbon with eucalyptus wood hierarchical microstructure (PC-Fe/C) was experimentally studied. The increase in the influent As(V) concentration and the inflow rate resulted in an earlier exhaustion of the column. The breakthrough curves indicated that a larger adsorbent mass, a smaller adsorbent grain size and a lower influent pH prolonged the column life span. The operating temperature had negligible effect. All breakthrough curves could be well fitted with the Thomas and Yoon–Nelson models. Under the condition of the influent flow rate of 5.136 mL/min, the influent As(V) concentration of 20 mg/L, the influent pH of 3, the adsorbent mass of 2 g, the adsorbent grain size of <100 mesh, and the operating temperature of 35 °C, the equilibrium adsorption capacity reached 10.49 mg/g, which was greater than those of natural/synthetic iron oxides adsorbents and iron-oxide-coated adsorbents.http://journals.vgtu.lt/index.php/JEELM/article/view/307fixed-bed column adsorptionarsenic (V)biomorph-genetic adsorbentiron oxidecarboneucalyptus wood microstructure |
| spellingShingle | Yanhong Li Yinian Zhu Zongqiang Zhu Xuehong Zhang Dunqiu Wang Liwei Xie Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure Journal of Environmental Engineering and Landscape Management fixed-bed column adsorption arsenic (V) biomorph-genetic adsorbent iron oxide carbon eucalyptus wood microstructure |
| title | Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure |
| title_full | Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure |
| title_fullStr | Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure |
| title_full_unstemmed | Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure |
| title_short | Fixed-bed column adsorption of arsenic(V) by porous composite of magnetite/hematite/carbon with eucalyptus wood microstructure |
| title_sort | fixed bed column adsorption of arsenic v by porous composite of magnetite hematite carbon with eucalyptus wood microstructure |
| topic | fixed-bed column adsorption arsenic (V) biomorph-genetic adsorbent iron oxide carbon eucalyptus wood microstructure |
| url | http://journals.vgtu.lt/index.php/JEELM/article/view/307 |
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