| P204-煤油萃取剂的生物降解性 |
| 摘要点击 1187 全文点击 2232 投稿时间：1999-11-05 |
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| 中文关键词 二-(2-乙基己基)磷酸 络合萃取 生物降解性 萃取置换 |
| 英文关键词 di(2 ethylhexyl)phosphate acid extraction with complexation biological degradability extraction displacement |
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| 中文摘要 |
| 采用测定溶剂饱和溶液 BOD5和 COD的方法对混合溶剂 P204(二-(2-乙基己基 )磷酸 )-煤油的生物降解性进行了研究 .结果表明 ,不同浓度的 P204(煤油)均可降解 .当溶剂中 P204的浓度小于 70%时 ,平衡水相的 COD及 BOD5 与初始溶剂中P204对煤油的体积比成正比 ;当 P204的浓度大于 70%时 ,平衡水相的 COD及 BOD5基本保持不变 .同时 ,建立了 P204(煤油)平衡水相中 P204的浓度的表达式 ,对研究混合溶剂的生物降解性具有一定的指导意义 . |
| 英文摘要 |
| In this article,the study on biological degradability of mixture of P204 (di(2 ethylhexyl)phosphate acid and kerosene is conducted by measureing BOD5 and COD of their water saturation.The results show that the mixture of P204 and kerosene by different volume ratio are biological degradable.COD and BOD5 of the equilibrium aqueous phase are proported with the initial volume ratio of P204 and kerosene when the initial concentration of P204 is lower than 70%. However,the values have little change when the initial concentration is greater than 70%.The formula of P204 concentration in equilibrium aqueous phase is proposed which is important to the extraction displacement technology. |
