biosparging Articles

  • Horizontal Remediation Wells - Case Study

    Why wait 30 year…when HRWs are here today! After 30 years of remediation, the responsible party became frustrated with the limitations of vertical wells and the inability of methods used to achieve cleanup goals.  Seeking site closure, the soon to be client, turned to Directional Technologies and Horizontal Remediation Wells (HRWs) to break the stalemate.  The HRWs were ...

  • Application of an innovative In-Situ thermal remediation process for removal of petroleum hydrocarbons at a former FDOT maintenance yard

    Subsurface Petroleum Hydrocarbons: Recovery and Removal Mechanisms Dissolved-Phase Recovery Pump and Treat Vapor-Phase Recovery Soil Vapor Extraction, Air Sparging Biological Removal Natural Attenuation, Source: Biosparging ...


    By McMillan-McGee Corp.

  • Treating Aniline Compounds at a Former Pharmaceutical Plant, Lombardia, Italy

    Integrated Remediation Approach with Sodium Persulfate based In Situ Chemical Oxidation (PersulfOx®) and Biosparging on Impacted Soils and Groundwater Geology : Sandy and Clayey Silt Contaminant Of Concern : Aniline and its Derivatives (i.e. N,N-diethylaniline) COC Range : 100 mg/kg in Saturated Soil (source area) up to 1000 µg/L in Groundwater Target Level : ...


    By REGENESIS

  • Air Sparging - Technology Overview

    Air sparging involves injecting a gas (usually air/oxygen) under pressure into the saturated zone to volatilize groundwater contaminants and to promote biodegradation in saturated and unsaturated soils by increasing subsurface oxygen concentrations. Vola tilized vapors migrate into the vadose zone where they are extracted via vacuum, generally by a soil vapor extraction system. The term ...

  • Consideration of the Effects of Remediation Technologies on Natural Attenuation.

    ABSTRACT: We have long understood and continue to improve our understanding of the geochemical conditions that favor biodegradation of petroleum hydrocarbons. Over the last several years our understanding of the conditions that are necessary for and/or promote reductive dechlorination of chlorinated hydrocarbons has improved substantially. Over this time in situ remediation technologies have ...


    By REGENESIS

  • Peroxygen Mediated Bioremediation of MTBE.

    ABSTRACT: Evidence is mounting, from laboratory and field studies, that oxygen plays a role in the bioremediation of methyl tertiary butyl ether (MTBE). Our experience with a number of commercial applications of peroxygen, in the form of Oxygen Release Compound (ORCâ), correlates the provision of enhanced aerobic conditions with enhanced MTBE biodegradation. Subsequent laboratory and field ...


    By REGENESIS

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