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Author Lee, Dal Heui ♦ Ryu, Jong Sik ♦ Kim, Eun Sik
Source SpringerLink
Content type Text
Publisher Springer-Verlag
File Format PDF
Copyright Year ©2003
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Earth sciences ♦ Geology, hydrology & meteorology
Subject Keyword pH ♦ counter-ion ♦ surfactant ♦ recovery ♦ toluene ♦ remediation ♦ Geosciences
Abstract In order to determine whether pH or counter-ion is more effective in modifying surfactant effectiveness, column experiments were performed. Ottawa sand was selected for model soil and toluene was used as a model contaminant. DOSL (anionic surfactant) was used for this study. The greatest recovery of toluene in column tests was 92%, which was obtained with a surfactant + NaOH. The effect of NaCl in changing effectiveness was less than that of NaOH. Much greater effectiveness was observed using surfactant solutions containing NaOH. The effect of NaOH in changing effectiveness was not due to Na$^{+}$ effects, but to the OH$^{−}$ as shown by these experimental results. The effect of counter-ion (Na$^{+}$) was small, and was much less than that of pH in surfactantassisted remediation.
ISSN 12264806
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2003-01-01
Publisher Place Berlin, Heidelberg
e-ISSN 15987477
Journal Geosciences Journal
Volume Number 7
Issue Number 2
Page Count 5
Starting Page 163
Ending Page 167

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Source: SpringerLink