Petroleum Contaminated Soil Remediation Using Six Wild Plant Species in the Yellow River Delta

Abstract:

The tolerance and remediation efficiency of six local wild plant species in petroleum-contaminated soils in the Yellow River Delta were conducted at three contaminated levels, i.e., uncontaminated soil (control), soil contamination by petroleum at 1.48% (w/w, TI), and soil contamination by petroleum at 2.96% (w/w, TII). After 60 days, six plant species showed different petroleum contamination tolerance and degradation capability in soil. The degradation ability of Setaria viridis, Alopecurus pratensis and Echinochloa crusgalli(L) Beauv was significantly higher than that of Festuca elata, Eleusine indica (P<0.05). Suaeda salsa had the least degradation ability. Plant had the high ability to degrade petroleum in the weak pollution soil, which might be due to the low re-straining effect on plant growth. Based on their petroleum contamination tolerance and removal ef-ficiency, we suggest Alopecurus pratensis, Setaria viridis, Echinochloa crusgalli (L.) Beauv and Festuca elata are suitable for petroleum-contaminated soil remediation in the Yellow River Delta.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 598-601
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.598
• Online since: December 2012
• Authors: Hui Xu, Wen Jun Xie, Zhao Hua Lu
• Keywords: Petroleum-Contaminated Soil, Phytoremediation, Wild Plant Species, Yellow River Delta

References

[1] Zuo Q, Liu WX, Tao S (2007) PAHs in surface soils from the western watershed of Bohai Sea [J]. Acta Scientiae Circum stantiae, 27(4): 667-671.

[2] Soleimani M, Afyuni M, Hajabbasi MA (2010) Phytoremediation of an aged petroleum contaminated soil using endophyte infected and non-infected grasses. Chemosphere 81: 1084–1090.

DOI: 10.1016/j.chemosphere.2010.09.034

[3] Wang B, Zhang X, Li GH, Zhong Y (2007) Impact of reed roots on the vertical migration and transformation of petroleum in oil-contaminated soil [J]. Acta Scientiae Circum stantiae, 27(8): 1281-1287.

[4] Li CR, Wang WK, Cao YQ, et al (2006) Influences of Petroleum-contaminated Soil on Growth of Sunflower[J]. Journal of Earth Sciences and Environment, 28(4): 97-99.

[5] Li CR, Wang W K, Cao YQ, et al (2008). Eco-toxicity of petroleum-contaminated soil on the growth of soybean [J]. Journal of Northwest A & F University (Nat. Sci. Ed., 36(1): 116-120.

[6] Lin Q, Mendelssoho IA (1998) The combined effects of phytoremediation and biostimulation in enhancing habitat restoration and oil degradation of petroleum contaminated wetlands[J]. Ecolog. Eng., 10: 263-274.

DOI: 10.1016/s0925-8574(98)00015-9

[7] Gerhardt KE, Huang XD, Glick BR, et al (2009) Greenberg Phytoremediation and rhizoremediation of organic soil contaminants: potential and challenges. Plant Science, 176(1): 20- 30.

DOI: 10.1016/j.plantsci.2008.09.014

[8] Wang Z, Xu Y, Zhao J, et al (2011) Remediation of petroleum contaminated soils through composting and rhizosphere degradation. Journal of Hazardous Materials, 190(1–3): 677- 685.

DOI: 10.1016/j.jhazmat.2011.03.103

[9] Merkl N, Schultze-Kraft R, Infante C (2005) Phytoremediation in the tropics– influence of heavy crude oil on root morphological characteristics of graminoids. Environmental Pollution, 138(1): 86- 91.

DOI: 10.1016/j.envpol.2005.02.023

[10] Speed Extractor E-916 operation manual for more detailed information refers to Application note 2008/(2009).

[11] U.S. Environmental Protection Agency. Method 3545A, Pressurized Fluid Extraction (PFE).