Evaluation of aggregate stability as influenced by petroleum compounds in texturally different soils

Document Type : Complete scientific research article

Authors

1 M.Sc. Graduate, Dept. of Soil Science and Engineering, College of Agriculture, Shiraz University, Shiraz, Iran.

2 Corresponding Author, Professor, Dept. of Soil Science and Engineering, College of Agriculture, Shiraz University, Shiraz, Iran.

3 Professor, Dept. of Soil Science and Engineering, College of Agriculture, Shiraz University, Shiraz, Iran.

4 Associate Prof., Dept. of Petroleum Engineering, College of Chemical, Petroleum, and Gas Engineering, Shiraz University, Shiraz, Iran

Abstract

Background and Objective: Oil pollutants are inevitable consequence of rapid population growth and the process of industrialization. Their spread in soil can affect many soil properties, especially aggregate stability. Particle size distribution and aggregate stability are of the main physical and hydraulic characteristics of soil that study of these indices are the basis of soil conservation strategies and are very important parameters in identifying the status of soil structure. Iran is an oil-rich country and the effect of different petroleum compounds on aggregate stability and stability indices including mean weight diameter and geometric mean diameter of aggregates in soils of different textures have not been studied so far. Therefore, this study aimed to investigate the effect of different levels of crude oil, kerosene, and gasoline as the three high-consumption petroleum products on the stability of aggregates in three soils with clay loam, sandy loam, and loamy sand textures.

Materials and Methods: In this study, the effect of 0, 1.5, 3.5, and 4.5% levels of crude oil, kerosene, and gasoline on the stability of aggregates in clay loam, loamy sand, and sandy loam soils was investigated in a factorial completely randomized design experiment. Studied stability indices were the mean weight diameter and geometric mean diameter of aggregates deterimined using both dry and wet sieving approaches. Finally, the results of the research were analyzed using EXCEL and SAS statistical softwares and the means of each separate treatment as well as their interactions compared using the Duncan's multiple range test at the 5% level.

Results: The results showed that the mean dry weight of aggregate diameters in the loamy sand and sandy loam soils were significantly lower than that of the clay loam soil by nearly 72% and 56%, respectively. The reductions were about 78% and 69% for the dry geometric mean diameter of aggregates. Furthermore, the dry mean weight diameter of aggregates in the soils treated by kerosene and gasoline were more than that of the crude oil- treated soils by nearly 17% and 25%, respectively. The mentioned increaments were about 22% and 35% for the dry geometric mean diameter. The wet mean weight diameter of aggregates in the loamy sand soils was significantly higher than that of the clay loam and sandy loam soils by nearly 20% and 35%, respectively. Furthermore, the wet geometric mean diameter of aggregates in the loamy sand soils was significantly higher than that of the clay loam and sandy loam soils by nearly 91% and 12%, respectively. The wet mean weight diameter of aggregates in the soils treated by kerosene and gasoline was significantly lower than that of the crude oil- treated soils by nearly 32% and 8%, respectively. Furthermore, the wet geometric mean diameter of aggregates in the soils treated by kerosene and gasoline was significantly lower than that of the crude oil- treated soils by nearly 34% and 14%, respectively.

Conclusion: Generally, results indicated that the application of low levels of petroleum products significantly increased the wet and dry mean weight diameter of aggregates and geometric mean diameter of aggregates; whereas, high levels reduced the above-mentioned attributes. The results of this study can be used in both aspects of identifying and monitoring the properties of oil-contaminated soils for their remediation and making appropriate management decisions, as well as conservation of soils against the destructive erosion phenomenon.

Keywords


1.Seyed Alikhani, S., Shorafa, M., Tavassoli, A., and Ebrahimi, S.S. 2011. The effect of plants' growth at different densities on soil petroleum hydrocarbons remediation. Journal of Water and Soil, 25: 5. 961-970. (In Persian)
2.Fallah, M., Ebrahimi, S., and Shabanpour, M. 2013. Hydrocarbon pollution emission in the pilot and pulse condition in saturated porous media of soil. Journalof Water and Soil Conservation,20: 3. 227-240. (In Persian)
3.Delleur, J.W. (Ed). 2006. Handbook of Ground water engineering, CRC press. 17_19-17_24.
4.Saadati, N., Davatgar, N., Roodpeyma, M., Mosaddeghi, M.R., and Bostani,A.A. 2015. Evaluation of petroleum contamination effects on soil water repellency intensity in Bakhtiardasht of Isfahan. Journal of Soil Research (Soil and Water Sciences), 29: 3. 359-369.(In Persian)
5.Hamid, F.S., Ossai, I.C., Ahmed, A., and Hassan, A. 2020. Remediation of soil and water contaminated with petroleum hydrocarbon: A review. Environmental Technology & Innovation, 17: 1-42.
6.Estabragh, A.R., Beytolahpour, I., and Javadi, A.A. 2011. Effect of resin on the strength of soil-cement mixture. Journal of Materials in Civil Engineering,23: 7. 969-976.
7.Estabragh, A.R., Khatibi, M., and Javadi, A.A. 2016. Effect of cement on treatment of a clay soil contaminated with glycerol. Journal of Materials in Civil Engineering, 28: 4. 1-36.
8.Antony, R., Saravanan, S., and Manjula, R. 2016. Effects of treated wastewater irrigation on soil properties– A case study at NIT Trichy. International Journalof Earth Sciences and Engineering,9: 6. 2041-2047.
9.Ghahremani, N., Hafezi Moghaddas, N., Ghafoori, M., and Lashkaripour, G.R. 2018. Effect of urban wastewater on chemical, physical and mechanical properties of soil (Case study: Central area of Mashhad). Iranian Journal of Engineering Geology,11: 3. 1-13. (In Persian)
10.Kermanpour, M., Mosaddeghi, M.R., Afyuni, M., and Hajabassi, M.A. 2015. Effect of Petroleum Pollution on Soil Water Repellency and Structural Stability in Bakhtiardasht Plain, Isfahan. Journal of Water and Soil Sciences,19: 73. 139-149. (In Persian)
11.Gee, G.W., and Bauder, J.W. 1986. Particle-size analysis. P 383-411. A. Klute (ed.) Methods of soil analysis. Part 1. Physical and mineralogical methods. SSSA Book Ser. 5. SSSA, Madison, WI. Particle-size analysis.P 383-411. In A. Klute (ed.) Methods of soil analysis. Part 1. Physical and mineralogical methods. 2nd ed. SSSA Book Ser. 5. SSSA, Madison, WI.
12.Kemper, W.D., and Rosenau, R.C. 1986. Aggregate stability and size distribution. Methods of soil analysis: Part 1 Physical and mineralogical methods, 5: 425-442.
13.Besalatpour, A.A., Ayoubi, S., Hajabbasi, M.A., Mosaddeghi, M.R., and Schulin, R. 2013. Estimatingwet soil aggregate stability fromeasily available properties in ahighly mountainous watershed. Catena, 111: 72-79.
14.Hosseini, F., Mosaddeghi, M.R., Hajabbasi, M.A., and Sabzalian, M.R. 2015. Influence of tall fescue endophyte infection on structural stability as quantified by high energy moisture characteristic in a range of soils. Geoderma, 249: 250. 87-99.
15.Movahedan, M., Abbasi, N., and Keramati, M. 2013. Effect of Polyvinyl Acetate Polymer on Stability of Dry Aggregates. Journal of Soil Research (Soil and Water Sciences), 27: 1. 71-83. (In Persian)
16.Tisdall, J.M., and Oades, J.M. 1982. Organic matter and water- stable aggregation by the root system of ryegrass. Australian Journal of Soil Science Research, 18: 423-438.
17.Arcenegui, V., Mataix-Solera, J., Gueuero, C., Zomoza, R., Malaix-Beneyto, J., and Garcia-Orenes, F. 2008. Intermediate effects of wildfires on water repellency and aggregate stability in Mediterranean calcareous soils. Catena. 74: 219-226.
18.Dexter, A.R., Czyz, G.E.A., Davy, J., Hardy, M., and Duval, O. 2011.Clay dispersion from soil as a function of antecedent water potential. Soil Science Society of America Journal,75: 444-455.
19.Vogelmann, E.S., Reichert, J.M., Prevedello, J., and Awe, G.O. 2013. Hydro-physical processes and soil properties correlated with origin ofsoil hydrophobicity. Ciencia Rural,43: 1582-1589.
20.Vogelmann, E.S., Reichert, J.M., Prevedello, J., Awe, G.O., and Mataix-Solera, J. 2013. Can occurrence of soil hydrophobicity promote the increase of aggregates stability. Catena, 110: 24-31.
21.Dorostkar, V., and Vali, R. 2017. Effect of grape leaves and pomegranate peel on soil structural stability and water repellency in different salinity levels. Scientific Journal of Agriculture,40: 2. 29-46. (In Persian)