Effect of Oil Contamination on Atterberg Limits of Soil

2011 ◽  
Vol 374-377 ◽  
pp. 336-338 ◽  
Author(s):  
Ling Tong ◽  
Wei Sheng Chen ◽  
Xi Lai Zheng ◽  
Mei Li
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Oil Content ◽  
Diesel Oil ◽  
Liquid Limit ◽  
Atterberg Limits ◽  
Oil Contamination ◽  
Plastic Limit ◽  
Atterberg Limit ◽  
Key Factor

Atterberg limit tests were preformed on diesel oil contaminated soil and crude oil contaminated soil. The results show that Atterberg limits reduced with increasing of diesel oil content. When crude oil content changed from 0 to 8%, it has little effect on Atterberg limits. However, it rose from 8% to 16%, plastic limit slightly decreased, but liquid limit increased remarkably. A "pseudo-viscosity" caused by crude oil is the key factor for this phenomenon.

scholarly journals Experimental study on the basic physical properties of diesel contaminated soil

2020 ◽  
Vol 165 ◽  
pp. 02008
Author(s):  
Xiaohong He ◽  
Fan Liu ◽  
Guang Li ◽  
Hai Lu
Keyword(s):  
Specific Gravity ◽  
Physical Properties ◽  
Soil Sample ◽  
Contaminated Soil ◽  
Oil Content ◽  
Great Influence ◽  
Diesel Oil ◽  
Liquid Limit ◽  
Plastic Limit ◽  
Limit Test

In order to study the change of the properties of petroleum contaminated soil, the samples of diesel contaminated soil with different degrees of pollution were prepared manually, and their basic physical properties were tested through the particle test, specific gravity test and liquid plastic limit test. The results show that the diesel oil has a great influence on the particle size composition of soil, and the diesel oil makes the content of silt decrease, while the clay increase obviously; the specific gravity of soil sample decreases with the increase of oil content, and it is smaller than the proportion of unpolluted soil sample; the influence of diesel oil on the liquid-plastic limit of soil is different, the plastic limit of soil decreases with the increase of oil content, and the liquid limit increases first at a certain oil content, it reaches a peak value and then decreases.

scholarly journals The Effect of Oil Contamination on some Geotechnical Properties of West Qurna Oilfield Soils at Basrah, Southern Iraq

2021 ◽  
Vol 54 (2B) ◽  
pp. 76-84
Author(s):  
Ahmed K. Al-Nimah
Keyword(s):  
Compressive Strength ◽  
Moisture Content ◽  
Crude Oil ◽  
Unconfined Compressive Strength ◽  
Liquid Limit ◽  
Geotechnical Properties ◽  
Oil Contamination ◽  
The West ◽  
Coefficient Of Consolidation ◽  
Clayey Silt

Oil contamination in soils causes several geotechnical problems that must be considered during construction. The contamination occurs due to oil seepage which could happen during oil explorations and production processes or oil transportation. The site of West Qurna oilfield in Basrah was selected for this study because it has witnessed oil seepages many times. In order to study the significant impact on geotechnical properties of soils in the West Qurna site, as uncontaminated bulk soil sample was taken at a depth of 1 m, and crude oil was added at weight ratios of 2, 4, 6, 8, and 10 %. Laboratory tests were performed on all samples; these tests included particle size distribution, moisture content, Atterberg’s limits, consolidation, unconfined compressive strength, and water absorption. The results show that soil at the West Qurna site is clayey silt with little sand and the moisture content is 29.21%. The values of liquid limit and plasticity index were gradually decreased, while the plastic limit was increased with increasing of crude oil in the soil of study. There was an increase in consolidation coefficients [compressive index, swelling index, pre-consolidation pressure, and coefficient of consolidation] with an increase in the percentages of crude oil in the soil. The results also show that there was a decrease in the values of unconfined compressive strength and absorption of water as the crude oil was increased in the soil.

scholarly journals STABILITAS STRUKTUR TANAH JENIS EKSPANSIF MENGGUNAKAN KOMBINASI ABU DAUN

UKaRsT ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 13
Author(s):  
Rekso Ajiono ◽  
Herlan Pratikto
Keyword(s):  
Water Content ◽  
Liquid Limit ◽  
Plastic Limit ◽  
Atterberg Limit

Dalam bidang konstruksi Tanah adalah suatu media pijakan inti dari sebuah bangunan. Struktur Tanah yang sebagian banyak terdapat lempung didalam komponennya adalah bersifat Monmorillonite. Tingkat stabilitas tanah yang bersifat Montmorillonite terbilang kurang bagus terhadap daya topang infrastruktur bangunan. Cara stabilitas tanah pada penelitian berikut adalah dengan menggunakan abu daun pada variasi penambahan 5%, 10%, 15% dan 20% dengan melakukan pengujian Water Content dan uji gradasi pada struktur tanah asli yang digunakan sebagai sampel penelitian, Uji tanah sampel diambil dari area perumahan wilis indah kota Kediri yang bersifat Montmorillonite. Pada test uji stabilitas tanah adalah dengan menggunakan benda uji mix tanah montmorillonite dengan abu daun dengan melakukan uji Berat Isi, Batas konsistensi (Atterberg Limit) dan Pemadatan Tanah (Proctor). Pada hasil penelitian struktur tanah asli dikategorikan momoroillonite dan setelah ditambah ampas kopi pada penambahan divariasi maksimal sebesar 20%, nilai Liquid Limit naik menjadi 43% dan nilai Plastic Limit mengalami kenaikan menjadi 31,64%, sehingga index plastic dapat mengalami peningkatan menjadi 11,36%. Saat uji pemadatan dengan kondisi benda uji padat sempurna, berat volume kering tanah asli sebesar 6,72 gr/cm3 dan setelah ditambahkan abu daun sebesar 20% mengalami peningkatan berat volume kering menjadi 10,56 gr/cm3.Kata Kunci: Tanah, Abu daun, Stabilitas Tanah

Polyfunctional Biopreparations-Crude Oil Destructors: The Effect on Plants and the Content of Oil in the Soil

2018 ◽  
Vol 22 (9) ◽  
pp. 18-22
Author(s):  
T.Yu. Korshunova ◽  
M.D. Bakaeva ◽  
O.N. Loginov
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Growth And Development ◽  
Oil Content ◽  
Soil Microorganisms ◽  
Acinetobacter Calcoaceticus ◽  
Ochrobactrum Intermedium ◽  
Bacterial Mixtures ◽  
Paenibacillus Ehimensis

The results of an experiment on cleaning oil-contaminated soil and accelerating the restoration of its fertility with the aid of combined biopreparations containing bacteria that degrade oil and microorganisms that can stimulate the growth and development of plants. It is shown that the introduction of bacterial mixtures reduced the oil content by 3.1–3.6 times and increased by 2-3 orders the number of basic physiological groups of soil microorganisms participating in its transformation, and also accelerated the germination of seeds (for 2 days) and the beginning (for 6–7 days) of all stages of oat development, used as a phytomeliorant. The most effective was a biopreparation consisting of a consortium of microorganisms Acinetobacter calcoaceticus IB DT-5.1/ 1 and Ochrobactrum intermedium IB DT-5.3/2 and strains of Pseudomonas koreensis IB-4 and Paenibacillus ehimensis IB 739, which, among other things, increased the mass of oat shoots in 2.3–2.6 times and their length is 54.0–77.8% compared to plants in the soil untreated with bacteria with oil.

Shear strength of remolded soils at consistency limits

2010 ◽  
Vol 47 (3) ◽  
pp. 259-266 ◽  
Author(s):  
Kamil Kayabali ◽  
Osman Oguz Tufenkci
Keyword(s):  
Shear Strength ◽  
Linear Relationship ◽  
Water Content ◽  
Undrained Shear Strength ◽  
Liquid Limit ◽  
Soil Samples ◽  
Atterberg Limits ◽  
Plastic Limit ◽  
Water Contents ◽  
Undrained Shear

The undrained shear strength of remolded soils is of concern in certain geotechnical engineering applications. Several methods for determining this parameter exist, including the laboratory vane test. This study proposes a new method to estimate the undrained shear strength, particularly at the plastic and liquid limits. For 30 inorganic soil samples of different plasticity levels, we determined the Atterberg limits, then performed a series of reverse extrusion tests at different water contents. The plastic and liquid limits are derived from the linear relationship between the logarithm of the extrusion pressure and water content. The tests show that the average undrained shear strength determined from the extrusion pressures at the plastic limit is about 180 kPa, whereas the average undrained shear strength at the liquid limit is 2.3 kPa. We show that the undrained shear strength of remolded soils at any water content can be estimated from the Atterberg limits alone. Although the laboratory vane test provides a reasonable undrained shear strength value at the plastic limit, it overestimates the undrained shear strength at the liquid limit and thus, care must be taken when the laboratory vane test is used to determine undrained shear strengths at water contents near the liquid limit.

Growth of four tropical tree species in petroleum-contaminated soil and effects of crude oil contamination

2016 ◽  
Vol 24 (2) ◽  
pp. 1769-1783 ◽  
Author(s):  
I. Pérez-Hernández ◽  
S. Ochoa-Gaona ◽  
R. H. Adams ◽  
M. C. Rivera-Cruz ◽  
V. Pérez-Hernández ◽  
...  
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Tree Species ◽  
Tropical Tree ◽  
Oil Contamination ◽  
Tropical Tree Species ◽  
Crude Oil Contamination ◽  
Petroleum Contaminated Soil

scholarly journals Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil

Polar Record ◽  
2003 ◽  
Vol 39 (4) ◽  
pp. 309-318 ◽  
Author(s):  
D. Delille ◽  
E. Pelletier ◽  
B. Delille ◽  
F. Coulon
Keyword(s):  
Crude Oil ◽  
Contaminated Soils ◽  
New Technologies ◽  
Weather Conditions ◽  
Diesel Oil ◽  
Oil Contamination ◽  
Bacterial Assemblage ◽  
Antarctic Soils ◽  
Order Of Magnitude ◽  
Terre Adélie

There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediation agents on total and hydrocarbon-degrading microbial assemblages under severe Antarctic conditions. This study was conducted in two steps, from January to July 1997 and from February to November 1999 in the Géologie Archipelago (Terre Adélie, 66°40′S, 140°01′E). Changes in bacterial communities were monitored in situ after crude oil or diesel addition in a series of 600 cm2 soil sectors (20×30 cm). Four contaminated sectors were used for each experiment: diesel oil (10 ml), diesel oil (10 ml) + fertilizer (1 ml), Arabian light crude oil (10 ml), and crude oil (10 ml) + fertilizer (1 ml). Two different bioremediation agents were used: a slow release fertilizer Inipol EAP-22 (Elf Atochem) in 1997 and a fish compost in 1999. Plots were sampled on a regular basis during a three-year period. All samples were analysed for total, saprophytic psychrophilic, and hydrocarbon-utilising bacteria. A one order of magnitude increase of saprophytic and hydrocarbon-utilising micro-organisms occurred during the first month of the experiment in most of the contaminated enclosures, but no clear differences appeared between fertilized and unfertilized plots. Diesel-oil contamination induced a significant increase of all bacterial parameters in all contaminated soils. Crude-oil contamination had no clear effects on microbial assemblages. It was clear that the microbial response could be rapid and efficient in spite of the severe weather conditions. However, microbial growth was not clearly improved in the presence of bioremediation agents.

scholarly journals Penelitian Stabilitas Struktur Tanah Lempung Bersifat Monmorillonite Menggunakan Limbah Ampas Kopi

2021 ◽  
Vol 3 (1) ◽  
pp. 34
Author(s):  
Hadi Santoso ◽  
Yosef Cahyo ◽  
Ahmad Ridwan ◽  
Dwifi Aprillia Karisma
Keyword(s):  
Liquid Limit ◽  
Plastic Limit ◽  
Atterberg Limit

Dalam bidang konstruksi Tanah adalah suatu media pijakan inti dari sebuah bangunan. Struktur Tanah yang sebagian banyak terdapat lempung didalam komponennya adalah bersifat Monmorillonite. Tingkat stabilitas tanah yang bersifat Montmorillonite terbilang kurang bagus terhadap daya topang infrastruktur bangunan. Cara stabilitas tanah pada penelitian berikut adalah dengan menggunakan limbah ampas kopi pada variasi penambahan 5%, 10%, 15% dan 20% pada tanah Montmorillonite. Pada test uji stabilitas tanah adalah dengan menggunakan benda uji mix tanah montmorillonite dengan limbah ampas kopi dengan melakukan uji Berat Isi, Batas konsistensi (Atterberg Limit) dan Pemadatan Tanah (Proctor). Pada hasil penelitian struktur tanah asli dikategorikan momoroillonite dan setelah ditambah ampas kopi pada penambahan divariasi maksimal sebesar 20%, nilai Liquid Limit naik menjadi 43% dan nilai Plastic Limit mengalami kenaikan menjadi 31,64%, sehingga index plastic dapat mengalami peningkatan menjadi 11,36%. Saat uji pemadatan dengan kondisi benda uji padat sempurna, berat volume kering tanah asli sebesar 6,72 gr/cm3 dan setelah ditambahkan limbah ampas kopi sebesar 20% mengalami peningkatan berat volume kering menjadi 10,56 gr/cm3.

Effects of Glass Fines on the Geotechnical Properties of Cement Stabilized Lateritic Soil

2019 ◽  
Vol 45 ◽  
pp. 42-52 ◽  
Author(s):  
Solomon I. Adedokun ◽  
Johnson R. Oluremi ◽  
Damilare S. Obebe
Keyword(s):  
Soil Sample ◽  
Cement Content ◽  
Liquid Limit ◽  
Geotechnical Properties ◽  
Lateritic Soil ◽  
Sieve Analysis ◽  
Plastic Limit ◽  
Atterberg Limit ◽  
Stabilized Soil ◽  
Composite Mixture

Effect of glass fines and cement as a composite mixture on the geotechnical properties of a poor lateritic soil obtained from a borrow pit at Aroje, Ogbomoso, Nigeria was investigated as a reuse method of managing wasted glass. Glass fines up to 12% at intervals of 4% by mass of the soil sample were added to the lateritic soil stabilized with cement of 0, 2, 4, and 6% by mass of the soil sample. Sieve analysis, Atterberg limit, British Standard (BS) Compaction, California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) tests were conducted on the stabilized soil specimens. Results showed that Liquid Limit (LL), Plastic Limit (PL) and Plasticity Index (PI) decreased while compaction and UCS of the lateritic soil increased from 0 to 8% addition of glass fines. The CBR of the soil increased continuously from 0 to 12% glass contents. However, addition of cement increased the LL and PI while it decreased the PL between 0 and 4% but increased beyond this range. The compaction, UCS and CBR of the stabilized soil increased significantly with increasing cement content. Hence, the soil can be stabilized with the addition of 8% glass fines and 6% cement content to be used as improved subgrade material for construction of light trafficked pavement.

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