scholarly journals Remediation of a Petroleum Hydrocarbon-Contaminated Site by Soil Vapor Extraction: A Full-Scale Case Study

2020 ◽  
Vol 10 (12) ◽  
pp. 4261
Author(s):  
Claudia Labianca ◽  
Sabino De Gisi ◽  
Francesco Picardi ◽  
Francesco Todaro ◽  
Michele Notarnicola
Keyword(s):  
Petroleum Hydrocarbon ◽  
Petroleum Products ◽  
Full Scale ◽  
Total Petroleum Hydrocarbons ◽  
Soil Vapor Extraction ◽  
Contaminated Site ◽  
Vapor Extraction ◽  
Polycyclic Aromatic

Spills, leaks, and other environmental aspects associated with petroleum products cause hazards to human health and ecosystems. Chemicals involved are total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), solvents, pesticides, and other heavy metals. Soil vapor extraction (SVE) is one of the main in-situ technologies currently employed for the remediation of groundwater and vadose zone contaminated with volatile organic compounds (VOCs). The performance of an SVE remediation system was examined for a petroleum hydrocarbon-contaminated site with attention to remediation targets and final performance. The study assessed: (1) the efficiency of a full-scale remediation system and (2) the influence of parameters affecting the treatment system effectiveness. Results showed how VOC concentration in soil was highly reduced after four year treatment with a global effectiveness of 73%. Some soil samples did not reach the environmental threshold limits and, therefore, an extension of the remediation period was required. The soil texture, humidity, permeability, and the category of considered pollutants were found to influence the amount of total extracted VOCs.

Research progress in the enhancement technology of soil vapor extraction of volatile petroleum hydrocarbon pollutants

2021 ◽  
Author(s):  
Weikai Cao ◽  
Lei Zhang ◽  
Yue Miao ◽  
Lufan Qiu
Keyword(s):  
Petroleum Hydrocarbon ◽  
Research Progress ◽  
Soil Vapor Extraction ◽  
Vapor Extraction ◽  
Hydrocarbon Pollution ◽  
Enhancement Technology

At present, volatile petroleum hydrocarbon pollution in soil is still widespread and serious in China.

Soil Cleanup by In-Situ Aeration. XIX. Effects of Spill Age on Soil Vapor Extraction Remediation Rates

1994 ◽  
Vol 29 (13) ◽  
pp. 1645-1671 ◽  
Author(s):  
David J. Wilson ◽  
José M. RodríGuez-Maroto ◽  
César Goamez-Lahoz
Keyword(s):  
Soil Vapor Extraction ◽  
Vapor Extraction ◽  
Soil Cleanup

scholarly journals Origin of TPHs and PAHs in Marine Sediment nearby Oil and Gas Extraction Sites on the West Coast of Qatar

2021 ◽  
Author(s):  
Maryam Abdulali Abdulla ◽  
Azenith Castillo
Keyword(s):  
Marine Sediment ◽  
Oil And Gas ◽  
Sediment Quality ◽  
Arabian Gulf ◽  
Dry Weight ◽  
Petroleum Products ◽  
Total Petroleum Hydrocarbons ◽  
Quality Guidelines ◽  
Coastal Marine ◽  
Polycyclic Aromatic

Total Petroleum Hydrocarbons (TPHs) and Polycyclic Aromatic Hydrocarbons (PAHs) are priority pollutants, which are known to be associated with petroleum products. They are released into the marine environment via accidental spillage, exploration and transportation. The present study aims to investigate the type, origin and weathering of petroleum in the coastal marine sediment of the western coastline of Qatar. Sixty-six surface sediment samples were collected along the western coastal area. The concentrations of organic hydrocarbons (TPHs and PAHs) were determined using GC-FID and GC-MS, respectively. Sediment characteristics including pH, temperature, TOC and particle size were also measured. The results indicated low concentrations of TPH (<0.001-0.246 µg/g dry weight sediment) and PAHs (<0.001-0.044 µg/g dry weight sediment). The concentrations for both organic pollutants were lower compared to the previous studies done within Qatar and in the Arabian Gulf and also indicated below the available permissible limit set by the Ministry of Municipality and Environment of Qatar and other Sediment Quality Guidelines (SQGs) used worldwide (NOAA). Pollution concentration profile is site specific where concentrations are high within the proximity of the source and derived from both direct inputs of petrogenic and pyrogenic contribution.

Experimental setup for the study of soil vapor extraction: a practical approach to determine sorption effect

1998 ◽  
Vol 37 (8) ◽  
pp. 169-176 ◽  
Author(s):  
J. M. Rodríguez-Maroto ◽  
C. Gómez-Lahoz ◽  
C. Vereda-Alonso ◽  
F. García-Herruzo ◽  
R. A. García-Delgado
Keyword(s):  
Vadose Zone ◽  
Soil Vapor Extraction ◽  
Soil Conditions ◽  
Vapor Extraction ◽  
Response Curves ◽  
Analytical Technique ◽  
Zone Development ◽  
Sorption Effect

Soil Vapor Extraction is one of the most used in situ technologies for the removal of volatile contaminants from the vadose zone. Development of mathematical models and validation with field results has improved the understanding of processes occurring during remediation. One of the most important is the transport of the contaminants from the different phases present in the soil to the gaseous one which is governed by thermodynamic and kinetic laws. In this work, the analysis of the response curves to Dirac pulses in soil columns for the determination of both the thermodynamic and kinetic parameters is considered. Results obtained for sand columns with typical gasoline and solvent compounds are presented. This analytical technique does not require long periods of time, is sensitive to relatively low partition coefficients, and reproduces closely the actual soil conditions so any kinetic limitations that may appear during operation should be observable in these experiments.

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