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- Title
Efficacy of surfactants in the sustainable restoration of the geotechnical properties of diesel-contaminated soil.
- Authors
Kumar, A.; Mohan, D.; Paramkusam, B. R.; Singh, A. P.
- Abstract
In this study, an evaluation of washing-based treatment for diesel-contaminated soil using non-ionic surfactants such as Tween-20, NP-9.5, and Triton X-100 at 5% (v/v) dosage for three days of washing in removing diesel as well as improvement of geotechnical properties was performed. The initial diesel content of 0.8 mg/g was identified using the gravimetric method in the soil. The geotechnical test results of the surfactant-washed diesel-contaminated soil show an increase in shear strength, a decrease in compression, and swelling. The contaminated and treated soil samples are also subjected to instrumental techniques like X-ray diffraction (XRD) and Fourier transform infrared radiation (FTIR). On analyzing the results from FTIR spectra, NP-9.5 is found to be the most efficient surfactant in removing the diesel. This study establishes that surfactant-aided soil washing is a prospective method for enhanced removal of diesel and leads to significant improvement in geotechnical properties of the treated soil.
- Subjects
NONIONIC surfactants; DIESEL motors; SURFACE active agents; SOIL washing; INFRARED radiation; TRITON X-100
- Publication
International Journal of Environmental Science & Technology (IJEST), 2024, Vol 21, Issue 1, p867
- ISSN
1735-1472
- Publication type
Article
- DOI
10.1007/s13762-023-04875-z