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Microbial Properties and Degradation of Polycyclic Aromatic Hydrocarbons in the Contaminated Farmland Soil with Bioremediation

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Abstract:

Degradation of polycyclic aromatic hydrocarbons (PAHs) and microbial quantity were investigated in aged PAHs-contaminated soil in a pot experiment with regrass and alfalfa. After 60 days germination the concentration of total PAHs in soil decreased by 37.57% and 38.41% with the treatment of ryegrass-microbe agent and alfalfa-microbe agent. The processes of ryegrass and alfalfa were 18.72% and 19.34%. The root system promoted the quantity of microbe and the microbial agent was benefit for the PAHs degrading microbe. And there was significant positive correlation between the number of PAHs degrading microorganisms and the removal rate of PAHs in the soil.

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Periodical:

Applied Mechanics and Materials (Volume 665)

Pages:

534-537

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.665.534

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Online since:

October 2014

Authors:

Hong Wang*, Hai Bo Li, Xin Wang, Ji Fu Ma

Keywords:

Bioremediation, Microbe Agent, Polycyclic Aromatic Hydrocarbons (PAHs), Soil Microbial

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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