Physical versus biological hydrocarbon removal during air sparging and soil vapor extraction

Article Abstract:

An examination of both physical and biological removal of pollution used in conjunction with air sparging and soil vapor extraction.

Basic Chemical Manufacturing, Industrial Organic Chemicals, Organic Chemicals, Methods, Illustration, Organic compounds, Hydrocarbon research, Decontamination (from gases, chemicals, etc.), Decontamination

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Effects of system parameters on the physical characteristics of bubbles produced through air sparging

Article Abstract:

Digital image analysis of air bubbles injected into saturated porous media illustrates that as the size of the injection orifice and injection pressure increases, so does the average bubble size and size distribution. Accompanying charts and graphs provide additional statistical data.

Research and Development in the Physical, Engineering, and Life Sciences, Ecological Sciences, Environmental sciences, Filtration, Bubbles

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Radiocarbon assessment of aerobic petroleum bioremediation in the vadose zone and groundwater at an AS/SVE site

Article Abstract:

Radiocarbon (14C) measurement from vadose zone air and groundwater proves useful in the quantitative measurement of aerobic microbial CO2 production from petroleum mineralization. The analysis of vadose zone CO2 and groundwater DIC yielded 14C values that ranged from 15.9 to 47.7 percent modern carbon (PMC) and exhibited isotopic depletion from aerobic microbial mineralization of the petroleum.

PETROLEUM AND COAL PRODUCTS, Petroleum, Petroleum and Coal Products Manufacturing, Environmental aspects, Carbon dioxide, Carbon, Carbon isotopes, Petroleum research

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