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| Effect of chromium(Ⅵ) reducing bacteria Microbacterium sp. QH-2 on the adsorption of chromium by aluminum oxide |
| Received:September 29, 2020 |
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| KeyWord:α-alumina;γ-alumina;chromium;Cr(Ⅵ) reducing bacteria |
| Author Name | Affiliation | E-mail | | WANG Chun-yong | School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China | | | ZHANG Zhen-bin | School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China | | | CUI Yan-shan | College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China | cuiyanshan@ucas.ac.cn | | ZHU Bo | School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China | | | SHANG Jing-yuan | Ecological Environmental Protection Service Center of Huludao City, Huludao 125000, China | | | CHEN Yue-qi | School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China | |
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| Abstract: |
| Alumina is one of the most abundant and active minerals in the soil, which can affect the migration and transformation of chromium(Cr) in the soil. The Cr(Ⅵ) reducing bacteria in the soil can reduce Cr(Ⅵ) to Cr(Ⅲ). This study discussed the effect of Cr(Ⅵ) reducing bacteria on the adsorption of Cr by aluminum oxide. The results showed that the adsorption capacity of γ-alumina for Cr(Ⅵ) was significantly stronger than that of α-alumina under a pH of 4. The crystal structure of α-alumina, γ-alumina, and Cr(Ⅵ) -reducing bacteria was not affected after mixing the culture with strain Microbacterium sp. QH-2. However, the presence of strain QH-2 increased the adsorption capacity of α-alumina and γ-alumina to Cr. |
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