生物柴油对模拟原油污染砾石释放油的影响研究

Impact on adding biodiesel to oil-polluted gravel beach

对生物柴油促进原油污染的砾石释放原油进行了模拟研究,讨论了生物柴油促进砾石上原油释放的可行性以及生物柴油投加量、投加方式对砾石上原油释放的影响.研究结果表明:生物柴油对砾石上原油的释放具有明显的促进作用;生物柴油的投加量越大,对砾石上原油的释放的促进作用越大,原油与生物柴油为2∶1时释放率为74.6%,4∶3时释放率为84.5%;生物柴油采用分批多次投加比一次性投加的效果更好,分三次投加的比一次性投加的在9d后可高出24.6%释放量.

This paper studies a series of simulated experiments on the promotive effects of biodiesel for cleaning oiled gravel beach,and mainly discusses the feasibility of biodiesel in the release of crude oil and the influence of biodiesel dosing quantity,dosing way on the release of crude oil.The results of this study show that biodiesel has the obvious role in promoting the release of crude oil in the gravel.The more the biodiesel dosing to the gravel,the greater volume crude oil releases.When the rate of crude oil to biodiesel is 2∶1,the release rate is 74.6%.When the rate is 4∶3,the release rate is 84.5%.Biodiesel dosing partial many times is better than one-off dosing.The removal efficiency of adding biodiesel in three times is about 24.6% higher than one-off dosing in the release of crude oil after the 9 days experiment.