Use of nanoscale zero-valent iron to improve the shear strength parameters of gas oil contaminated clay

Document Type: Research Paper


1 Engineering Geology Division, Department of Geology, Faculty of Basic Sciences, Tarbiat Modares University

2 Engineering Geology Division, Department of Geology, Faculty of Basic Sciences, Tarbiat Modares University, Iran

3 Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Iran


In recent years, the nanoscale zero-valent iron (NZVI) particles have been used successfully for the degradation of hydrocarbon
compounds and remediation of other pollutants. Nevertheless, as far as we know, there is no specific study on the improvement of the
geotechnical properties of contaminated soils with hydrocarbon compounds by NZVI. This study used NZVI particles to remove gas
oil in a clayey soil and determined the effects of NZVI on Atterberg limits, compaction properties, and shear strength parameters of the
soil. In order to determine the optimal reaction time and NZVI dosage, the total organic carbon (TOC) of a contaminated soil with 9%
of gas oil was measured. The experimental data showed that the optimum reaction time and NZVI dosage were 24 days and 5%,
respectively. Then, the contaminated samples were prepared by mixing the soil with gas oil in the amount of 0, 3, 6, and 9% by dry
weight. The results showed a decrease in the friction angle (φ) and an increase in the cohesion (C). Maximum dry density and optimum
moisture content of the soil decreased due to the contamination. In addition, an increase in liquid limit (LL) and plastic limit (PL) were
observed. Finally, all contaminated specimens were mixed with 5% of NZVI. After 24 days, an increase was seen in the friction angle,
cohesion, maximum dry density, and optimum water content. LL and PL of the soil decreased after the treatment


Article Title [Persian]

کاربرد نانو ذرات آهن صفر ظرفیتی برای بهبود پارامترهای مقاومت برشی خاک رس آلوده به گازوئیل

Abstract [Persian]

در سالهای اخیر نانوذرات آهن صفر ظرفیتی کاربرد های زیادی در تجزیه ترکیبات هیدروکربنی و پالایش سایر آلاینده ها داشته اند. اما تا کنون پژوهش مشخصی در مورد کاربرد آنها برای بهسازی خاک انجام نشده است. در این تحقیق از این نانو ذرات برای حذف گازوئیل از یک خاک رس آلوده استفاده شده و اثرات آن برحدوداتربرگ، تراکم و پارامترهای مقاومت برشی خاک بررسی شده است. نتایج نشان دهنده افزایش زاویه اصطکاک داخلی، چسبندگی، حداکثر دانسیته خشک و رطوبت بهینه خاک آلوده پس از اختلاط با نانو ذرات آهن می باشد. علاوه بر این، حد روانی و حد خمیری خاک کاهش یافته است.

Keywords [Persian]

  • نانو ذرات آهن صفر ظرفیتی
  • NZVI
  • رس
  • گازوئیل
  • آلودگی
  • پارامترهای مقاومت برشی
Al-Sanad, H.A., Eid, W.K., Ismael, N.F., 1995. Geotechnical properties of oil-contaminated Kuwaiti sand. Journal of
Geotechnical Engineering, 121: 407–412.
ASTM (American Society for Testing and Materials), 1999. Annual book of ASTM standards. Section 4, Construction,
Soil and Rock, volume 4.08, ASTM, Philadelphia, PA.
Bhatt, I., Tripathi, B.N., 2011. Interaction of engineered nanoparticles with various components of the environment and
possible strategies for their assessment. Chemosphere, 82: 308-317.
Brunauer, S., Emmett, P.H., Teller, E., 1938. Adsorption of gases in multimolecular layers. Journal of the American
Chemical Society, 60: 309–319.
Carter, D.L., Heilman, M.D., Gonzalez, C.L., 1965. Ethylene glycol monoethyl ether for determining surface area of
silicate minerals. Soil Science, 100: 356-360.
Chang, M.C., Shu, H.Y., Hsieh, W.P., Wang, M.C., 2005. Using nanoscale zero-valent iron for the remediation of
polycyclic aromatic hydrocarbons contaminated soil. Journal of the Air and Waste Management Association, 55: 1200-
Craig, R.F., 1990. Soil Mechanics. 4th edition, Chapman and Hall, 410pp.Das, B.M., 1994. Principle of Geotechnical Engineering. 3rd edition, PWS Publishing Company, 436pp.
Gillham, R.W., OʼHannesin, S.F., 1994. Enhanced degradation of halogenated aliphatics by zero-valent iron.
Groundwater, 32: 958-967.
Joo, S.H., Feitz, A.J., Sedlak, D.L., Waite, T.D., 2005. Quantification of the oxidizing capacity of nanoparticulate zerovalent
iron. Environmental Science and Technology, 39: 1263-1268.
Kermani, M., Ebadi, T., 2012. The effect of oil contamination on the geotechnical properties of fine-grained soils. Soil
and Sediment Contamination, 21: 655–671.
Khamehchiyan, M., Charkhabi, A.H., Tajik, M., 2007. Effect of crude oil contamination on geotechnical properties of
clayey and sandy soils. Engineering Geology, 89: 220–229.
Khosravi, E., Ghasemzadeh, H., Sabour, M.R., Yazdani, H., 2013. Geotechnical properties of gas oil-contaminated
kaolinite. Engineering Geology, 166: 11–16.
Lambe, T.W., 1958. The engineering behavior of compacted clay. Journal of the Soil Mechanics and Foundation
Division, ASCE, 84: 1–35.
Lee, J., Kim, J., Choi, W., 2007. Oxidation on zerovalent iron promoted by polyoxometalate as an electron shuttle.
Environmental Science and Technology, 41: 3335-3340.
Li, A.Q., Elliott, D.W., Zhang, W.X., 2006. Zero-valent iron nanoparticles for abatement of environmental pollutants:
materials and engineering aspects. Critical Reviews in Solid State and Materials Sciences, 31: 111-122.
Lien, H.L., Zhang, W.X., 1999. Dechlorination of chlorinated methanes in aqueous solution using nanoscale bimetallic
particles. Journal of Environmental Engineering, 125: 1042-1047.
Matheson, L.J., Tratnyek, P.G., 1994. Reductive dehalogenation of chlorinated methanes by iron metal. Environmental
Science and Technology, 28: 2045-2053.
Meegoda, J.N., Chen, B., Gunasekera, S.D., Pederson, P., 1998. Compaction characteristics of contaminated soils-reuse
as a road base material. In: Vipulanandan, C., Elton, David J. (Eds.), Recycled Materials in Geotechnical Applications.
Geotechnical Special Publication, ASCE, 79: 165–209.
Nowack, B., Bucheli, T.D., 2007. Occurrence, behavior and effects of nanoparticles in the environment. Environmental
Pollution, 150: 5-22.
Olgun, M., Yildiz, M., 2010. Effect of organic fluids on the geotechnical behavior of a highly plastic clayey soil. Applied
Clay Science, 48: 615–621.
Pierce, J.W., Siegel, F.R., 1969. Quantification in clay mineral studies of sediments and sedimentary rock. Journal of
Sedimentary Petrology, 39: 187-193.
Rahman, Z.A., Hamzah, U., Taha, M.R., Ithnain, N.S., Ahmad, N., 2010. Influence of oil contamination on geotechnical
properties of basaltic residual soil. American Journal of Applied Sciences, 7: 954–961.
Shah, S.J., Patel, A.V., Tiwari, K.C., Ramakrishnan, D., 2003. Stabilization of fuel oil contaminated soil - A case study.
Geotechnical and Geological Engineering, 21: 415-427.
Shimizu, A., Tokumura, M., Nakajima, K., Kawase, Y., 2012. Phenol removal using zero-valent iron powder in the
presence of dissolved oxygen: roles of decomposition by the fenton reaction and adsorption/precipitation. Journal of
Hazardous Materials, 201: 60-67.
Song, H., Carraway, E.R., 2005. Reduction of chlorinated ethanes by nanosized zero-valent iron: kinetics, pathways, and
effects of reaction conditions. Environmental Science and Technology, 39: 6237-6245.
Sridharan, A., Rao, G.V., 1979. Shear strength behavior of saturated clays and the role of the effective stress concept.
Geotechnique, 29: 177–193
Tratnyek, P.G., Johnson, R.L., 2006. Nanotechnology for environmental cleanup. Nanotoday, 1: 44-48.
Varanasi, P., Fullana, A., Sidhu, S., 2007. Remediation of PCB contaminated soils using iron nano-particles.
Chemosphere, 66: 1031-1038.
Wang, C.B., Zhang, W.X., 1997. Synthesizing nanoscale iron particles for rapid and complete dechlorination of TCE and
PCBs. Environmental Science and Technology, 31: 2154-2156.
Zhang, W.X., 2003. Nanoscale iron particles for environmental remediation, an overview. Journal of Nanoparticle
Research, 5: 323-332.
Zhang, W.X., Elliott, D.W., 2006. Application of iron nanoparticles for groundwater remediation. Remediation Journal,
16: 7-21.
Zhang, Z.Y., Lu, M., Zhang, Z.Z., Xiao, M., Zhang, M., 2012. Dechlorination of short chain chlorinated paraffins by
nanoscale zero-valent iron. Journal of Hazardous Materials, 243: 105-111.
Zhao, D., 1996. Experimental study of stress-strain and shear strength behavior of contaminated cohesive soils. Ph.D.
thesis, Whiting School of Engineering, The Johns Hopkins University.