Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles
Water contamination with chlorinated hydrocarbons such as chloroform (CHCl3), carbon tetrachloride (CCl4) and trichloroethylene (TCE) is one of the major public health concerns. In this study, we explored the use of aluminum-iron alloys particles in millimeter scale for rapid removal of CHCl3, CCl4...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/136795 |
| _version_ | 1824455692672565248 |
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| author | Xu, Jie Pu, Yuan Yang, Xiao Jin Wan, Pingyu Wang, Rong Song, Peng Fisher, Adrian |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Xu, Jie Pu, Yuan Yang, Xiao Jin Wan, Pingyu Wang, Rong Song, Peng Fisher, Adrian |
| author_sort | Xu, Jie |
| collection | NTU |
| description | Water contamination with chlorinated hydrocarbons such as chloroform (CHCl3), carbon tetrachloride (CCl4) and trichloroethylene (TCE) is one of the major public health concerns. In this study, we explored the use of aluminum-iron alloys particles in millimeter scale for rapid removal of CHCl3, CCl4 and TCE from water. Three types of Al-Fe alloy particles containing 10, 20 and 58 wt% of Fe (termed as Al-Fe10, Al-Fe20 and Al-Fe58) were prepared and characterized by electrochemical polarization, X-ray diffraction and energy dispersive spectrometer. For concentrations of 30-180 μg/L CHCl3, CCl4 and TCE, a removal efficiency of 45-64% was achieved in a hydraulic contact time of less than 3 min through a column packed with 0.8-2 mm diameter of Al-Fe alloy particles. The concentration of Al and Fe ions released into water was less than 0.15 and 0.05 mg/L, respectively. Alloying Al with Fe enhances reactivity towards chlorinated hydrocarbons' degradation and the enhancement is likely the consequence of galvanic effects between different phases (Al, Fe and intermetallic Al-Fe compounds such as Al13Fe4, Fe3Al and FeAl2) and catalytic role of these intermetallic Al-Fe compounds. The results demonstrate that the use of Al-Fe alloy particles offers a viable and green option for chlorinated hydrocarbons' removal in water treatment. |
| first_indexed | 2025-02-19T03:42:15Z |
| format | Journal Article |
| id | ntu-10356/136795 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:42:15Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1367952020-01-29T03:56:56Z Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles Xu, Jie Pu, Yuan Yang, Xiao Jin Wan, Pingyu Wang, Rong Song, Peng Fisher, Adrian School of Civil and Environmental Engineering Engineering::Civil engineering Chlorinated Hydrocarbons Disinfection Byproducts Water contamination with chlorinated hydrocarbons such as chloroform (CHCl3), carbon tetrachloride (CCl4) and trichloroethylene (TCE) is one of the major public health concerns. In this study, we explored the use of aluminum-iron alloys particles in millimeter scale for rapid removal of CHCl3, CCl4 and TCE from water. Three types of Al-Fe alloy particles containing 10, 20 and 58 wt% of Fe (termed as Al-Fe10, Al-Fe20 and Al-Fe58) were prepared and characterized by electrochemical polarization, X-ray diffraction and energy dispersive spectrometer. For concentrations of 30-180 μg/L CHCl3, CCl4 and TCE, a removal efficiency of 45-64% was achieved in a hydraulic contact time of less than 3 min through a column packed with 0.8-2 mm diameter of Al-Fe alloy particles. The concentration of Al and Fe ions released into water was less than 0.15 and 0.05 mg/L, respectively. Alloying Al with Fe enhances reactivity towards chlorinated hydrocarbons' degradation and the enhancement is likely the consequence of galvanic effects between different phases (Al, Fe and intermetallic Al-Fe compounds such as Al13Fe4, Fe3Al and FeAl2) and catalytic role of these intermetallic Al-Fe compounds. The results demonstrate that the use of Al-Fe alloy particles offers a viable and green option for chlorinated hydrocarbons' removal in water treatment. 2020-01-29T03:56:56Z 2020-01-29T03:56:56Z 2017 Journal Article Xu, J., Pu, Y., Yang, X. J., Wan, P., Wang, R., Song, P., & Fisher, A. (2018). Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum–iron alloy particles. Environmental Technology, 39(22), 2882-2890. doi:10.1080/09593330.2017.1369577 0959-3330 https://hdl.handle.net/10356/136795 10.1080/09593330.2017.1369577 28820043 2-s2.0-85029405741 22 39 2882 2890 en Environmental Technology © 2017 Informa UK Limited, trading as Taylor & Francis Group. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Chlorinated Hydrocarbons Disinfection Byproducts Xu, Jie Pu, Yuan Yang, Xiao Jin Wan, Pingyu Wang, Rong Song, Peng Fisher, Adrian Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title | Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title_full | Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title_fullStr | Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title_full_unstemmed | Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title_short | Rapid removal of chloroform, carbon tetrachloride and trichloroethylene in water by aluminum-iron alloy particles |
| title_sort | rapid removal of chloroform carbon tetrachloride and trichloroethylene in water by aluminum iron alloy particles |
| topic | Engineering::Civil engineering Chlorinated Hydrocarbons Disinfection Byproducts |
| url | https://hdl.handle.net/10356/136795 |
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