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Experimental Study on Bioremediation of Petroleum Contaminated Soil in Puyang Oilfield

机译：濮阳油田石油污染土壤生物修复试验研究

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摘要

According to the previous experience on remediation experiment in laboratory and field, the study on microgial ecological remediation of petroleum contaminated soil in Puyang oilfield was carried out under 3 different conditions. Here the results from remediation show that the technology of microbe cooperated with alfalfa, single microbe technology and single alfalfa technology all possess remedial effect on petroleum contaminated soil through 99-day period remediation, and the technology of microbe cooperated with alfalfa creates the best remedial mission with petroleum hydrocarbon degradation rate of 65.27%, while the rest single technologies exerts degradation rate of about 40% on petroleum hydrocarbon, Moreover, the experiment results indicate that few nutriment such as soluble salt, NO_3~-, Cl~-,etc can infiltrate into the lower soil layer(50cm). However, the distinct increase of NH_4~+ in the second and third remediation area may attribute to abundance fertilizer transportation into depth soil layer due to the nitrogen fixation of alfalfa's roots. In addition, we also find that the remediation effect can be impacted by the factors containing tempertation, water, oxygen, nutriment and mini-geo-enviroment.
机译：根据实验室和领域的修复实验的先前经验，濮阳油田石油污染土壤微血血病生态修复研究在3不同条件下进行。在这里，修复结果表明，微生物技术与苜蓿，单微生物技术和单苜蓿技术合作，全部对石油污染土壤的补救效果通过99天的修复，以及与苜蓿合作的微生物技术创造了最佳的补救任务具有65.27％的石油烃降解率，而其他单一技术在石油烃上发挥了约40％的降解率，实验结果表明，诸如可溶性盐，NO_3〜 - ，Cl〜 - 等营养性较少的营养可以渗透进入下土层（50cm）。然而，由于苜蓿根的氮固定，第二和第三修复区域中的NH_4〜+在第二和第三修复区域中的NH_4〜+的不同增加可能归因于深度土壤层。此外，我们还发现修复效果可能会受到含水性，水，氧气，营养和迷你环境的因素的影响。

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