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The contrast study of the in-situ remediation methods of the petroleum-contaminated soil

机译：石油污染土壤原位修复方法的对比研究

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The Contrast study of the in-situ remediation methods of the petroleumcontaminated soilwas carried out in ZhongyuanOilfield. Three remediation methods, plant-microbialmethod,microbialmethod and plantmethod,were applied to identify the degradation effect of petroleum. The highly efficient petroleum-degrading bacteria screened from the study area and the rye grass is chosen as remediation plant according to the experiment in laboratory. The results showed that the number of petroleum-degraded microbial after remediation is more than the situation before remediation. That is because the microbial liquid and the rhizosphere effect of plants can promote the growth and propagation ofmicrobial. The plant-microbial method is optimal for the petroleum degradation. The petroleum was degraded fully in the remediation layer and a little part of nutrients leaked into the layer belowthe remediation layer. In addition, the soil temperature, oxygen content and nutrients should be regulated to promote the degradation of petroleum. The in-situ plant-microbial method provides more economic and efficient technical methods for the remediation of contaminated soil and has profound practical significance for the sustainable development of human beings.
机译：在中原油田进行了石油污染土壤原位修复方法的对比研究。采用了植物微生物法，微生物法和植物法三种修复方法来鉴定石油的降解效果。根据实验室实验，从研究区和黑麦草中筛选出高效的石油降解菌作为修复植物。结果表明，修复后的石油降解微生物数量多于修复前的数量。这是因为植物的微生物液体和根际作用可以促进微生物的生长和繁殖。植物-微生物方法是石油降解的最佳方法。石油在修复层中被完全降解，一小部分养分泄漏到修复层下方的层中。此外，应调节土壤温度，氧气含量和养分，以促进石油的降解。原位植物微生物方法为污染土壤的修复提供了更加经济有效的技术手段，对人类的可持续发展具有深远的现实意义。

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