Characteristics of petroleum contaminants and their distribution in Lake Taihu, China

Chemistry Central Journal

Jixiang Guo¹  Jia Fang²  Jingjing Cao¹ 

[1] Enhanced Oil Recovery Institute, China University of Petroleum, Beijing, 102249, Peoples Republic of China

[2] Tianjin Chen Li Technology Corporation, Ltd, Tianjin, 300400, People Republic of China

关键词: Taihu Lake;    GC/MS;    PAHs;    n-alkanes;    Distribution;    Petroleum contaminants;   

Others  :  788084
DOI  :  10.1186/1752-153X-6-92

 received in 2012-05-18, accepted in 2012-08-28,  发布年份 2012

【 摘 要 】

Background

Taihu Lake is a typical plain eutrophic shallow lake. With rapidly economic development of the lake area, the petroleum products and oil wastewater produced in various processes have been inevitably discharged into Taihu Lake. As the major fresh water resource in the economically developed region of Yangtze River Delta, the water quality and environmental condition of Taihu Lake have the direct bearing on the natural environment and sustainable development of economy in this region. For this reason we carried out the study to explore the composition, distribution characteristics and sources of petroleum contaminants in Taihu Lake. The aim of this study was to provide the basis for standard management and pollution control of the Taihu Lake environment.

Results

The result showed that water samples from near industrial locations were of relatively higher petroleum contaminants concentrations. The oil pollutants concentrations in different areas of Lake Taihu ranged from 0.106 mg/L to 1.168 mg/L, and the sequence of total contents distribution characteristics of petroleum pollutants from high to low in different regions of Taihu Lake was: “Dapu”, “Xiaomeikou”, “Zhushan Bay”, “Lake center”, “Qidu”. The results showed that total concentrations of n-alkanes and PAHs ranged from 0.045 to 0.281 mg/L and from 0.011 to 0.034 mg/L respectively. In the same region, the concentrations of hydrocarbon pollutants in the surface and bottom of the lake were higher than that in the middle.

Conclusion

This paper reached a conclusion that the petroleum contaminants in Taihu Lake mainly derived from petroleum pollution caused by human activities as indicated by OEP, bimodal distribution, CPI, Pr/Ph ratio, the LMW/HMW ratio and other evaluation indices for sources of n-alkanes and polycyclic aromatic hydrocarbons (PAHs).

【 授权许可】

   
2012 Guo et al.; licensee Chemistry Central Ltd.

【 图 表 】

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