复合菌剂修复石油污染土壤的影响因素研究

利用微生物降解土壤中的石油污染物,具有良好的应用前景。实验模拟研究了营养物（N、P）、电子受体（H2O2）、含水量和表面活性剂（TW80、SDS）等多因素对复合菌剂修复石油污染土壤的影响。实验针对四个影响因素,设计了正交实验,得到实验结果表明,营养物、电子受体、水和活性剂对微生物修复石油污染土壤都具有较大影响,当添加C∶N∶P为400∶6∶1、H2O2为10 mg/g、水为30%和阴离子活性剂0.6 mg/g时,复合菌剂降解土壤中石油的效率可达到73.2%。

Study on the Affecting Factors on Multiple Species Inoculant during the Biodegradation of Oil in Soil

Bioremediation is the most promising way to treat oil pollution in soil.This research simulated oil polluted soil and investigated the affecting factors during the biodegradation of oil in soil.The affecting factors such as nutrition,electronic-accepter,water,surfactant were researched by Orthogonal experiment.The experimental result showed that the affecting fators were playing great roles during the biodegradation of oil.The maximum biodegradation was 73.2 % under the optimum factors（C∶N∶P = 400∶6∶1,H2O2 10 mg/g,H2O 30 % and SDS 0.6 mg/g）.