| 生物水解法处理尿素废水 |
| 摘要点击 1499 全文点击 2540 |
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| 中文关键词 |
| 英文关键词 |
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| 中文摘要 |
| 尿素合成反应中,每生成1mol尿素同时生成1mol水,加上其它工艺过程排出的水,化肥厂每生产-t尿素大约要排放0.5-0.7t工艺废水,其中含有1-2%的尿素,2-5%的氨。 |
| 英文摘要 |
| Results of the experiments show that denitrifying bacteria were able to hydrolyze urea in the wastcwater into CO2 and NH3 which could he recovered under suitable conditions. Sources of NH3- or organic matters in the waste-water tame from the products of HNO3 or CH3OH. Using the biological reactor filled with fibre, 5000 mg/L urea in the influent was hydrolyzed by 93% in 3 hours, meanwhile 280 mg/L NO3--N was reduced to 120 mg/L. |
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