石油污染土壤土著微生物强化修复研究

Remediation and Strengthening of the Indigenous Micro-organisms in Petroleum-contaminated Soil

主要分析了石油污染土壤微生物修复的特点,并以石油污染土壤为供试土壤,采用室内盆装模拟实验以及外加N源、P源强化土著微生物处理的方法,从几种土著微生物常用N、P源中选择了最佳N源,最佳P源,并实验确定了本模拟实验系统的C∶N∶P.在本模拟实验系统最佳强化条件下,土著微生物降解石油烃效果得到明显提高,30天其降解率最高可达73.3%,较对照高出了58%.

This paper analyzes the main features of microbial remediation of petroleum-contami- nated soil. With the petroleum-contaminated soil as the subject, the mock indoor pot experiment is done by means of the applied N source, P source method for strengthening indigenous micro- bial treatment. The best N source and P source are chosen from several commonly used indige- nous microorganisms. The experiment also determines the simulation system as C： N： P. Under the most favorable strengthening condition, the indigenous microbial hydrocarbon has shown significant improvements. Within 30 days, the 73.3% ,58% higher than the comparison. degradation of petroleum degradation rate reaches