H_2O_2在石油污染土壤微生物治理过程中的作用

Function of H 2O 2 in the bioremediation process of petroleum contaminated soil

为探讨缩短石油污染土壤微生物治理过程的有效途径，采用生物泥浆法，系统地研究了Ｈ２Ｏ２对土壤中烃类污染物微生物降解速度的影响。结果表明，Ｈ２Ｏ２既可直接氧化一部分烃类污染物，又可为微生物的氧化过程提供充足的电子受体，强化它们对烃类污染物的氧化降解作用，通过添加适量的Ｈ２Ｏ２。

In order to shorten the period of petroleum contaminated soil′s bioremediation,the influence of H 2O 2 on the biodegradation rate of petroleum contaminators in soil was studied systematically with the method of biological mud. The experimental results show that H 2O 2 not only can degrade a part of hydrocarbon contaminators but also can supply the biodegradation process of the contaminators with sufficient electron acceptors,so as to sharpen microbes′ ability to degrade hydrocarbon contaminators.The biodegradation rate of hydrocarbon contaminators in soil samples is increased by about three times when the adding amount of H 2O 2 is suitable.