Evaluation of geotechnical behavior of hydrocarbon-contaminated tropical soils

• Grant number: 16/18522-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2016
• End date: June 30, 2018
• Field of knowledge: Engineering - Civil Engineering - Geotechnical Engineering
• Principal Investigator: Natalia de Souza Correia
• Grantee: José Wilson Batista da Silva
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Considering the increasing consumption of fuels and petroleum by the world population, the risk of oil-contamination by accidental spillage or leakage also increases, bringing heavy damage to the environment. The remediation of hydrocarbon-contaminated soil involves costly techniques and not only affects the quality of the soil but also alters its engineering properties. On the other hand, there is a potential to reuse these oil-contaminated soils, giving them a new economic value, such as waste disposal covering systems. In some cases such as leakage in the foundation soils for oil-storage tanks, the tank and the foundation soil removal becomes unviable. Thus, it is important to investigate geotechnical properties alterations of oil-contaminated soils, such as those that could promote additional foundation settlement. This study aims to evaluate changes in physical, mechanic and hydraulic properties of lateritic and non-lateritic hydrocarbon oil-contaminated soils through laboratory tests. The oils used for contamination, ethanol, gas and diesel, will be artificially added in different contamination percentages (0, 2, 4, 6 and 8%) of the dry weight of soil samples. Tests include analysis of grain particle size, Atterberg limits, soil compaction, unconfined compression strength, direct shear, pH, as well as soil microstructural analysis using scanning electron microscope. Results will compare the geotechnical behavior of tropical soils under different contamination types and levels. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PORTELINHA, FERNANDO HENRIQUE MARTINS; DE SOUZA CORREIA, NATALIA; DOS SANTOS MENDES, IGOR; DA SILVA, JOSE WILSON BATISTA. Geotechnical Properties and Microstructure of a Diesel Contaminated Lateritic Soil Treated with Lime. SOIL & SEDIMENT CONTAMINATION, v. 30, n. 7, p. 838-861, OCT 3 2021. (16/18522-1)

CORREIA, NATALIA DE SOUZA; PORTELINHA, FERNANDO HENRIQUE MARTINS; MENDES, IGOR SANTOS; DA SILVA, JOSE WILSON BATISTA. Lime treatment of a diesel-contaminated coarse-grained soil for reuse in geotechnical applications. INTERNATIONAL JOURNAL OF GEO-ENGINEERING, v. 11, n. 1, JUN 30 2020. (16/18522-1)

PORTELINHA, FERNANDO HENRIQUE MARTINS; DE SOUZA CORREIA, NATALIA; DOS SANTOS MENDES, IGOR; DA SILVA, JOSE WILSON BATISTA. Geotechnical Properties and Microstructure of a Diesel Contaminated Lateritic Soil Treated with Lime. SOIL & SEDIMENT CONTAMINATION, MAR 2021. (16/18522-1)