论文部分内容阅读
以渤西油田海上平台中质原油作为研究对象进行岸滩模拟溢油生物降解实验,探讨了原油中金刚烷化合物的分布情况及其降解规律。结果表明:经过21 d的岸滩生物降解,原油中单金刚烷的分布变化较大:沸点较低的单金刚烷化合物相对浓度变化较明显,沸点越低降解越快,加缓释肥的菌液制剂较未加的降解更快。与单金刚烷相比,双金刚烷的分布变化不大,受生物降解影响较小,具有较好的抗生物降解性。通过t-检验分析,所选取诊断比值中,单金刚烷指标A6、A8、A12和双金刚烷指标A16、A17、A18较为稳定,能很好地指示生物降解21 d内油样的来源;金刚烷化合物诊断比值对于溢油鉴别具有重要的意义。
Taking the offshore crude oil in Bohai oilfield offshore platform as the research object, experiments were conducted to simulate the oil spill biodegradation in coastal beach, and the distribution of adamantane compounds in crude oil and their degradation rules were discussed. The results showed that the distribution of monoadamantane in crude oil changed greatly after 21 days of shoreline biodegradation. The relative concentration of monoadamantane compound with lower boiling point changed obviously, the lower the boiling point was, the faster the degradation was. Liquid formulations degrade faster than without. Compared with the monoadamantane, the distribution of the bis-adamantanes did not change much, and was less affected by the biodegradation and had better anti-biodegradability. The results of t-test showed that the indicators of monoadamantane A6, A8, A12 and diamantamanes A16, A17 and A18 were relatively stable among the selected diagnostic ratios, which could well indicate the source of oil samples within 21 days of biodegradation. The diagnostic ratio of alkane compounds is of great significance for the identification of oil spills.