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Removal of Diesel Oil from Soil Using Rhamnolipid and Sodium Dodecyl Sulfonate

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Abstract:

The removal of No. 0 diesel oil from two kinds of soils artificially by natural rhamnolipid and synthetic sodium dodecyl sulfonate (SDS) were performed in a batch of soil washing studies. Results showed that both surfactants could remove significant amount of diesel oil from the contaminated soil at different solution concentrations compared with water alone. The maximum removal was obtained at surfactant concentrations below or equal to the critical micelle concentration (CMC). At surfactant concentrations higher than the CMC, removal of diesel oil did not increase further. SDS remained more in solution than rhamnolipid, thus, it was expected to be more effective than rhamnolipid to remove diesel oil. However, the next washing experiment showed that rhamnolipid had more considerable ability in removing diesel oil.

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Periodical:

Applied Mechanics and Materials (Volumes 361-363)

Pages:

875-878

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.361-363.875

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Online since:

August 2013

Authors:

Chun Fang Tang, Xiang Jin Lian

Keywords:

Diesel Oil, Removal, Rhamnolipid, Sodium Dodecyl Sulfonate

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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