Effect of chromium（Ⅵ）reducing bacteria Microbacterium sp. QH-2 on the adsorption of chromium by aluminum oxide [Cr （Ⅵ）还原菌 Microbacterium sp. QH-2 对铝氧化物吸附铬影响的研究]

作者：Wang C.-Y.; Zhang Z.-B.; Cui Y.-S.^*; Zhu B.; Shang J.-Y.; Chen Y.-Q.

来源：农业环境科学学报, 2021, 40(3): 801-805.

DOI：10.11654/jaes.2020-0916

• Chromium
• Cr （Ⅵ）reducing bacteria
• α-alumina
• γ-alumina

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.

• 单位
  辽宁大学; 中国科学院大学