Pollution characteristics of polycyclic aromatic hydrocarbons (PAHs) in oily sludge from the Zhongyuan Oilfield and its peripheral soils |
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作者单位: | Qingdao University of Science and Technology, Qingdao 266042, China |
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基金项目: | supported by the Shandong Provincial Natural Science Foundation of China (Y2007E03) |
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摘 要: |
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关 键 词: | 土壤样品 含油污泥 多环芳烃 污染特征 PAHs 中原油田 高效液相色谱法 内梅罗指数 |
收稿时间: | 10 December 2009 |
Pollution characteristics of polycyclic aromatic hydrocarbons (PAHs) in oily sludge from the Zhongyuan Oilfield and its peripheral soils |
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Authors: | Shaoping Kuang Zhong Xu |
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Affiliation: | Qingdao University of Science and Technology, Qingdao 266042, China |
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Abstract: | The purpose of this study is to determine the degree of contamination caused by polycyclic aromatic hydrocarbons (PAHs) in
oily sludge and soils around it in the Zhongyuan Oilfield. The contents of polycyclic aromatic hydrocarbons in oily sludge
samples were determined with HPLC. The contents of PAHs of oily sludge from three different oil production plants vary from
high to low in the order of the Wenming oily sludge dumping site of No. 3 Oil Production Plant (3W)>the Mazhai oily sludge
dumping site of No. 3 Oil Production Plant (3M)>the Wen’er oily sludge dumping site of No. 4 Oil Production Plant (4W). Naphthalene,
acenaphthylene, acenaphthene, fluorine and phenanthrene are the major pollutants of PAHs in oily sludge. The contents of PAHs
in soil samples around the oily sludge dumping sites vary widely from 434.49 to 2408.8 ng/g. Naphthalene, acenaphthene, fluorine,
phenanthrene and pyrene are the characteristic factors of PAHs in soil samples of 3M and 3W, and naphthalene, acenaphthene,
fluorine and phenanthrene are the characteristic factors of PAHs in soil samples of 4W. According to these data and the ratios
of Fl/Py, PAHs in oily sludge samples come mainly from petrogenic sources, and soil samples are divided into petrogenic soil
samples and mixed-source soil samples, and both petrogenic and pyrogenic soil samples in terms of the sources of PAHs. The
classification by Nemero index P indicates that soils around the oily sludge dumping sites have been seriously polluted. |
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Keywords: | oily sludge soil PAH Nemero index P |
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