Biological Degradation of Mixture of P204 and Kerosene
P204-煤油萃取剂的生物降解性

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.