Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0043-1354(01)00472-9
Title: Evaluation of an elevated non-ionic surfactant critical micelle concentration in a soil/aqueous system
Authors: Zheng, Z.
Obbard, J.P. 
Keywords: Non-ionic surfactants
PAH
Soil
Solubilization
Sorption
Water
Issue Date: 2002
Citation: Zheng, Z., Obbard, J.P. (2002). Evaluation of an elevated non-ionic surfactant critical micelle concentration in a soil/aqueous system. Water Research 36 (10) : 2667-2672. ScholarBank@NUS Repository. https://doi.org/10.1016/S0043-1354(01)00472-9
Abstract: In this study, an elevated non-ionic surfactant critical micelle concentration (CMC) in a soil/aqueous system was examined. Experimental measurements have been made of surfactant solubilization of polycyclic aromatic hydrocarbons (PAH) (i.e. fluoranthene and pyrene) in a 5-month aged PAH contaminated soil, as well as surfactant sorption onto soil. Fluoranthene and pyrene in the soil/aqueous system in the presence of three non-ionic surfactants (i.e. Tween 80, Triton X-100 and Brij 35) were extracted using dichloramethane and analyzed using GC-MS. Maximum sorption of non-ionic surfactant onto soil was evaluated using a surface tension technique. It was observed that PAH solubilization is proportional to surfactant dose after the elevated CMC, termed as the effective CMC (CMCeff), is achieved. The values of surfactant CMCeff assessed by the surface tension technique were found to be similar to those determined from surfactant PAH solublization, thereby proving the research hypothesis that surfactant sorption is the cause for the elevation of surfactant CMC in a soil/aqueous system. Copyright © 2002 Elsevier Science Ltd.
Source Title: Water Research
URI: http://scholarbank.nus.edu.sg/handle/10635/91977
ISSN: 00431354
DOI: 10.1016/S0043-1354(01)00472-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

106
checked on Oct 10, 2018

WEB OF SCIENCETM
Citations

85
checked on Oct 10, 2018

Page view(s)

44
checked on Oct 5, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.