Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash
In this study, fly ash (FA) was modified by sodium hydroxide to prepare a new adsorption material (IP) and treat Pb2+- and Cd2+-polluted wastewater. The effect of preparation parameters (mass ratio of FA/NaOH and modification temperature) on IP adsorption performance was investigated. The results in...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2021-01-01
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| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2021/1336638 |
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| author | Xi Chen Guibin Zhang Jingtian Li Puhui Ji |
| author_facet | Xi Chen Guibin Zhang Jingtian Li Puhui Ji |
| author_sort | Xi Chen |
| collection | DOAJ |
| description | In this study, fly ash (FA) was modified by sodium hydroxide to prepare a new adsorption material (IP) and treat Pb2+- and Cd2+-polluted wastewater. The effect of preparation parameters (mass ratio of FA/NaOH and modification temperature) on IP adsorption performance was investigated. The results indicated that the IP4 showed the highest adsorption capacity prepared at the FA/NaOH mass ratio of 1 : 2 and the roasting temperature of 250°C. The IP4 was characterized by SEM, EDX, XRD, and FTIR analyses. The results showed that the surface morphology and microstructure of FA were significantly changed. Furthermore, in order to study the adsorption performance of Pb2+ and Cd2+ on IP4, the different initial concentrations of Pb2+ and Cd2+, pH, and contact time were analyzed, and the results indicated that IP4 has excellent adsorption capacity for heavy metals. In addition, kinetic model results demonstrated that the adsorption behavior of Pb2+ and Cd2+ on IP4 was better described by a pseudo-second-order model. |
| format | Article |
| id | doaj-art-6c02885fd14d4568beb627dab1e2c5f5 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-6c02885fd14d4568beb627dab1e2c5f52025-01-03T00:11:07ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382021-01-01202110.1155/2021/13366381336638Possibility of Removing Pb and Cd from Polluted Water by Modified Fly AshXi Chen0Guibin Zhang1Jingtian Li2Puhui Ji3College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaSuzhou Suchuang Environmental Protection Technology Co., Ltd., Jiangsu 215100, ChinaThe First Geological and Mineral Survey Institute of Henan Bureau of Geology and Mineral Exploration and Development, Luoyang 471023, ChinaCollege of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaIn this study, fly ash (FA) was modified by sodium hydroxide to prepare a new adsorption material (IP) and treat Pb2+- and Cd2+-polluted wastewater. The effect of preparation parameters (mass ratio of FA/NaOH and modification temperature) on IP adsorption performance was investigated. The results indicated that the IP4 showed the highest adsorption capacity prepared at the FA/NaOH mass ratio of 1 : 2 and the roasting temperature of 250°C. The IP4 was characterized by SEM, EDX, XRD, and FTIR analyses. The results showed that the surface morphology and microstructure of FA were significantly changed. Furthermore, in order to study the adsorption performance of Pb2+ and Cd2+ on IP4, the different initial concentrations of Pb2+ and Cd2+, pH, and contact time were analyzed, and the results indicated that IP4 has excellent adsorption capacity for heavy metals. In addition, kinetic model results demonstrated that the adsorption behavior of Pb2+ and Cd2+ on IP4 was better described by a pseudo-second-order model.http://dx.doi.org/10.1155/2021/1336638 |
| spellingShingle | Xi Chen Guibin Zhang Jingtian Li Puhui Ji Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash Adsorption Science & Technology |
| title | Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash |
| title_full | Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash |
| title_fullStr | Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash |
| title_full_unstemmed | Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash |
| title_short | Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash |
| title_sort | possibility of removing pb and cd from polluted water by modified fly ash |
| url | http://dx.doi.org/10.1155/2021/1336638 |
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