Studying the effects of contamination on the geotechnical properties of clayey soil

Karkush, Mahdi O.; Zaboon, AbdolRazak T.; Hussien, H

doi:10.1201/b15004-80

Cited by 31 publications

(41 citation statements)

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“…The results indicated noticeable reduction in the shear strength, the dry density, optimum moisture content and Atterberg's limits with increasing the content of crude oil in the soil. Karkush et al [10] investigated the effects of four types of contaminants on the geotechnical properties of clayey soil. The four contaminants are kerosene, ammonium nitrate, copper and lead, each of them was mixed with soil in two percentages (10 and 25) %.…”

Section: Introductionmentioning

confidence: 99%

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Investigation the Impacts of Fuel Oil on the Geotechnical Properties of Cohesive Soil

Karkush¹,

Kareem²

2017

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The present study investigates the impacts of fuel oil (MFO) on the chemical, physical and mechanical properties of cohesive soil. The contaminant is fuel oil disposed as byproduct from the fuel feeding the electricity power plant at the campus of University of Baghdad in Baghdad/Iraq. The soil sample are obtained from the same site of electricity plant and classified according to unified soil classification system (USCS) as silty clay of low plasticity (CL). The soil samples are artificially contaminated with two percentages of fuel oil, 10 and 20 % in relative to the dry weight of soil. The soil samples were mixed by hands with fuel oil and left for 4 days to allow chemical reactions between soil particles and contaminant. A series of laboratory tests are conducted on both intact and artificially contaminated soil samples to measure the effects of fuel oil on the chemical, physical and mechanical properties of soil samples. The results of tests showed that the fuel oil has significant impacts on the mechanical properties of soil and slight effects on the chemical and physical properties of soil. Increasing the percentage of contaminant causes a slight decrease in the liquid limit and particle size distribution, on the other hand it causes a considerable decrease in the consolidation and shear strength parameters. The results of direct shear tests showed decreasing the cohesion of soil by 44 and 67 %, but the angle of internal friction decreased by 20 and 32 % for soil samples contaminated with 10 % and 20 % of fuel oil respectively.

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Section: Introductionmentioning

confidence: 99%

“…Karkush and Resol [11] investigated the geotechnical properties of sandy soil. The soil samples were contaminated artificially with four percentages of industrial wastewater (10,20,40 and 100) % of solution used in the contamination process. The wastewater was a byproduct from the fuel of electricity power plant.…”

Section: Introductionmentioning

confidence: 99%

Investigation the Impacts of Fuel Oil on the Geotechnical Properties of Cohesive Soil

Karkush¹,

Kareem²

2017

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“…The distilled water was necessary for dissolution of Pb(NO3)2 and the final contaminant solution had to have sufficient volume to cover the soil sample and provide an adequate column (about 3 cm) above the soil surface. In such a way, contaminant could penetrate deeper in the soil [1,13]. The soil samples used in this study were designated with the symbols given in Table 2.…”

Section: Preparation Of Contaminated Soil Samplesmentioning

confidence: 99%

“…Heavy metals (HMs) are considered as the major contaminants which have diverse effects on geotechnical properties of soil. The effects of contaminants depend on several factors such as their mobility and chemical activity in the soil, especially when the content of contaminants is above certain levels [1,2]. HMs usually adhere to the soil particles and thus become immobile.…”

Section: Introductionmentioning

confidence: 99%

“…Contamination of soil with HMs causes reduction of shear strength parameters of soil. Also, contamination of soil with HMs leads to increased compressibility and maximum dry density, but decreased optimum moisture content and permeability of soil [1]. Costs and removal efficiency are the major factors in selection of the remediation technique for removing contaminants from the soil.…”

Section: Introductionmentioning

confidence: 99%

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Remediation of clay soil contaminated with lead nitrate using washing-enhanced electrokinetic technique

Karkush

Ali

2018

J. Electrochem. Sci. Eng.

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<p class="PaperAbstract">The remediation of clay soil contaminated with lead nitrate has been investigated in details by using the electrokinetic technique enhanced by using purging solutions, mid compartment, and washing technique. The intact soil samples are obtained from Al-Ahdab oil field located in the southeast of Iraq. The soil samples are contaminated synthetically with two different percentages of lead nitrate (6.67 and 20g/kg) and kept for 30 days. The mid compartment is used to reduce the existing paths of contaminants from the soil. Purging solutions in the anode, mid, and cathode compartments are used to control the pH value, while the activated carbon is used to prevent the reverse electroosmotic flow from cathode to anode. The main results of electrokinetic experiments, such as variations of electrical current and pH with time, and the accumulated volume of electroosmotic flow are presented and discussed. It is shown that increasing of the concentration of lead causes increase of the electrical current generated during the remediation process. As a consequence, the intensity of chemical reactions occurring in the anode, mid, and cathode compartments are also increased. The removal efficiency of lead from soil samples ranged between 12.4 and 21 %. The washing process is found beneficial in reducing the period of remediation but does not affect the removal efficiency.</p>

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Numerical Analysis of Water and Crude Oil Flux from Clayey Soil by GeoStudio-SEEP/W

Alwan

Al-Adili

2022

Geotechnical Engineering and Sustainable Construction

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Studying the effects of contamination on the geotechnical properties of clayey soil

Cited by 31 publications

References 1 publication

Investigation the Impacts of Fuel Oil on the Geotechnical Properties of Cohesive Soil

Investigation the Impacts of Fuel Oil on the Geotechnical Properties of Cohesive Soil

Remediation of clay soil contaminated with lead nitrate using washing-enhanced electrokinetic technique

Numerical Analysis of Water and Crude Oil Flux from Clayey Soil by GeoStudio-SEEP/W

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