| 反硝化菌的偶氮染料脱色研究 |
| 摘要点击 655 全文点击 1415 投稿时间：1997-06-30 |
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| 中文关键词 反硝化 偶氮染料 脱色 脱色菌 |
| 英文关键词 denitrification azo dyes decolorization decolorizing bacteria |
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| 中文摘要 |
| 从活性污泥中分离到几株具有反硝化能力的偶氮染料脱色菌。它们在合成培养基中能使大多数所试偶氮染料脱色；而在反硝化条件下很难使偶氮染料脱色,只有菌株17在培养20d后才有较好的脱色效果。酵母粉等有机物作为生长因子时,对菌株17反硝化条件下的偶氮染料脱色有非常明显的促进作用；该情况下的偶氮染料脱色是在完成反硝化作用之后进行的。此外,在反硝化条件下不能分离得到偶氮染料脱色菌。 |
| 英文摘要 |
| Several azo dyes-decolorizing bacterial strains which were capable of denitrifying were isolated from activited sludges.They could decolorize most of the azo dyes tested in this experiment in composed medium;but it was much difficult that the bacteril strains decolorize azo dyes under denitrification condition,except for strain 17 which could decolorize Acid Red B effectively after cultivation for more than 20 days.The addition of growth factor such as yeast extract could greatly improve the decolorization of Acid Red B under denitrification condition by strain 17.The result also indicated that the decolorization of azo dyes was taken place after the completion of denitrification.Additionally,it was impossible to isolate azo dye decolorizing bacteria under denitrification condition. |
