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  2. Soil vapor extraction - Wikipedia

    en.wikipedia.org/wiki/Soil_vapor_extraction

    Soil vapor extraction (SVE) is a physical treatment process for in situ remediation of volatile contaminants in vadose zone (unsaturated) soils (EPA, 2012). SVE (also referred to as in situ soil venting or vacuum extraction) is based on mass transfer of contaminant from the solid (sorbed) and liquid (aqueous or non-aqueous) phases into the gas phase, with subsequent collection of the gas phase ...

  3. Air sparging - Wikipedia

    en.wikipedia.org/wiki/Air_sparging

    Air sparging, also known as in situ air stripping [1] and in situ volatilization is an in situ remediation technique, used for the treatment of saturated soils and groundwater contaminated by volatile organic compounds (VOCs) like petroleum hydrocarbons, [2] a widespread problem for the ground water and soil health.

  4. Non-aqueous phase liquid - Wikipedia

    en.wikipedia.org/wiki/Non-aqueous_phase_liquid

    This form of remediation is possibly the most widely accepted in-situ technology for the removal of NAPLs in the unsaturated zone. Soil vacuum extraction (SVE) increases the volatility of NAPLs by using a vacuum that induces air flow.

  5. Groundwater remediation - Wikipedia

    en.wikipedia.org/wiki/Groundwater_remediation

    Dual-phase vacuum extraction (DPVE), also known as multi-phase extraction, is a technology that uses a high-vacuum system to remove both contaminated groundwater and soil vapor. In DPVE systems, a high-vacuum extraction well is installed with its screened section in the zone of contaminated soils and groundwater. Fluid/vapor extraction systems ...

  6. Environmental remediation - Wikipedia

    en.wikipedia.org/wiki/Environmental_remediation

    In-situ technologies include but are not limited to: solidification and stabilization, soil vapor extraction, permeable reactive barriers, monitored natural attenuation, bioremediation-phytoremediation, chemical oxidation, steam-enhanced extraction and in situ thermal desorption and have been used extensively in the USA. [11]

  7. Remediation of contaminated sites with cement - Wikipedia

    en.wikipedia.org/wiki/Remediation_of...

    Both in situ and ex situ processes were utilized to treat over 35,000 cubic meters of contaminated soil. The ex situ treated soil was mixed with Portland cement by a pugmill then placed on top of the in situ treated soil. This created an excellent base for pavement to be placed over the site.

  8. Who is Kristi Noem? Dog controversy and what else to ... - AOL

    www.aol.com/news/kirsti-noem-dog-controversy...

    The farmer and small-business owner turned elected official has made headlines for being a possible vice presidential candidate and killing an "untrainable" dog.

  9. In situ - Wikipedia

    en.wikipedia.org/wiki/In_situ

    Ex situ methods, by contrast, examine phenomena or objects outside their original context. The natural sciences frequently implement in situ methodologies. Geological studies employ field analysis of soil composition and rock formations, while environmental science relies on direct ecosystem monitoring to obtain accurate environmental data.