Diagnostic Tools to Assess Mass Removal Processes During Pulsed Air Sparging of a Petroleum Hydrocarbon Source Zone
نویسندگان
چکیده
منابع مشابه
Air sparging effectiveness: laboratory characterization of air-channel mass transfer zone for VOC volatilization.
Air sparging in conjunction with soil vapor extraction is one of many technologies currently being applied for the remediation of groundwater contaminated with volatile organic compounds (VOCs). Mass transfer at the air-water interface during air sparging is affected by various soil and VOC properties. In this study with a single air-channel apparatus, mass transfer of VOCs was shown to occur w...
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Pollutants in the form of non-aqueous phase liquids (NAPLs), such as petroleum products, pose a serious threat to the soil and groundwater. A mathematical model was derived to study the unsteady pollutant concentrations through water saturated contaminated soil under air sparging conditions for different NAPLs and soil properties. The comparison between the numerical model results and the publi...
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Petroleum hydrocarbon contamination of ground water is a significant and often complex problem. The complexity results from the fact that ground-water contamination is a product of soil contamination. Especially with older spills, significant amounts of hydrocarbons can be trapped below the water table. Traditional pump and treat is ineffective because of the low solubility of trapped oily phas...
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The study of erosive processes is essential to maintain agricultural sustainability, but it is often affected by the limitations and costs of conventional methodologies used. This situation is common worldwide, which has resulted in an increasing interest in developing sediment tracers. Here we provide a general review of diverse sediment tracing approaches and some of the advantages and limita...
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This paper presents the results of laboratory experiments that investigate the removal of volatile organic compounds from saturated soils through the use of air sparging. Three series of experiments were performed in a column test apparatus using two different soils to represent actual field conditions, namely, a fine gravel and a medium to fine Ottawa sand (both obtained from sources near Chic...
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ژورنال
عنوان ژورنال: Groundwater Monitoring & Remediation
سال: 2018
ISSN: 1069-3629,1745-6592
DOI: 10.1111/gwmr.12297