| 摘要: |
| 从天津市煤气厂的活性污泥中筛选、分离得到一株高效苯酚降解菌。经BIOLOG细菌自动鉴定系统及16SrDNA鉴定,该菌株为粪产碱杆菌(Alcaligenesfaecalis)。苯酚降解实验证实,该菌能在76h内完全降解1600mg·L-1的苯酚,并且随着苯酚浓度的增加,底物抑制作用增强,细胞得率下降。 |
| 关键词: 苯酚 生物降解 粪产碱杆菌 生理时期 |
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| Isolation of A Phenol-Degrading Strain and Its Degrading Potential |
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| Abstract: |
| A strain of Alcaligenes faecalis was isolated from activated sludge, and was identified as a member of the genus Alcaligenes by using BIOLOG and 16S rDNA sequence analysis. Phenol biodegradation using a pure culture of Alcaligenes faecalis was studied. The results showed that the higher the phenol concentration was, the stronger the substrate inhibition was. The maximum phenol degradation occurred at the late phase of the exponential growth stages. The phenol of 1600 mg·L -1 was entirely degraded by Alcaligenes faecalis within 76 hrs. |
| Key words: phenol phenol degradation Alcaligenes faecalis physiological stage |
