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Enhanced removal of selected hydrocarbons from soil by Pseudomonas aeruginosa UG2 biosurfactants and some chemical surfactants
Author(s) -
Scheibenbogen Karl,
Zytner Richard G.,
Lee Hung,
Trevors Jack T.
Publication year - 1994
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280590109
Subject(s) - rhamnolipid , hydrocarbon , environmental remediation , clogging , environmental chemistry , chemistry , pollutant , biodegradation , soil contamination , environmental science , soil water , organic chemistry , contamination , pseudomonas aeruginosa , bacteria , biology , soil science , ecology , history , genetics , archaeology
The ability of rhamnolipid biosurfactants produced by Pseudomonas aeruginosa UG2 to wash a model hydrocarbon mixture from unsaturated soil columns was studied. Both aliphatic and aromatic hydrocarbons were effectively removed without soil clogging with non‐recirculating biosurfactant solutions. Recirculation of wash solutions did not substantially affect washing efficiency. Of the several chemical surfactants tested, only Triton X‐100 provided comparable hydrocarbon washing efficiency without soil clogging. The results suggest that UG2 biosurfactants have the potential for remediation of hydrophobic pollutants in unsaturated soil.