in-situ groundwater treatment Articles

  • In Situ Groundwater Treatment of Gasoline

    In Situ Groundwater Treatment of Gasoline ...

  • Treatment of Explosives-Contaminated Groundwater by In Situ Cometabolic Reduction

    Untitled Document ABSTRACT: Earth Tech Inc. has completed the first field-scale demonstration of in situ explosives-contaminated groundwater treatment by cometabolic ...


    By REGENESIS

  • In situ bioremediation of pesticides in soil and groundwater

    This article provides a summary of the Adventus Group’s experience with treatment of organochlorine pesticides (OCPs) in soil and groundwater using DARAMEND® and EHC® bioremediation amendments. The firm has offered DARAMEND for treatment of recalcitrant compounds in soil for more than ten years in both ex situ and in-situ applications. Since OCPs bind strongly to the soil matrix, ...


  • The In Situ Bioremediation/Groundwater Remediation Process

    In-situ groundwater bioremediation is a technology that encourages growth and reproduction of indigenous microorganisms to enhance biodegradation of organic constituents in the saturated zone. In-situ groundwater bioremediation can effectively degrade organic constituents which are dissolved in groundwater and adsorbed onto the aquifer matrix. The Adventus In Situ Bioremediation/Groundwater ...


  • Ex Situ Biological Treatment for Groundwater, Surface Water, and Leachate

    The main advantage of ex situ treatment is that it generally requires shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to monitor and continuously mix the groundwater. However, ex situ treatment requires pumping of groundwater, leading to increased costs and engineering for equipment, possible permitting, and material handling. ...

  • In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology

    A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...


    By AECOM

  • Biobarriers for groundwater treatment: a review

    Biobarriers (BBs) are a new type of in situ technology for the remediation of contaminated groundwater. In recent years, this remediation technique has been more and more used in place of traditional Pump & Treat systems or other in situ technologies both in the USA and Europe. This work reviews the main experiences of BBs. The literature contains reports about tests ...


    By IWA Publishing

  • Soil and Groundwater Treatment of MTBE

    Project: Treated 4,200 cubic yards of petroleum contaminated sandy-silty soil and waterClient: Speedy Express Service Station Location: Walterboro, South Carolina Scope of work: In-Situ Bioremediation Project cost: $30,000 (Included only microbial products) Source of ...

  • Soil and Groundwater Treatment of PCE

    Project: Treated 100 Cubic Yards of PCE Contaminated Clay Soil and Groundwater Client: Former Dry Cleaners Location: Warren, Michigan Scope of work: In-Situ Bioremediation Source of contamination: Leaking UST Project duration: 2 months ...

  • In Search of Ideal Groundwater Treatment

    As surface water supplies become increasingly polluted and difficult to treat, the use of groundwater continues to increase. Every day, more than 77 billion gal of water are withdrawn from aquifers for a variety of uses including human consumption. Worldwide, groundwater makes up 95% of available freshwater, and nearly half of the U.S. population receives all or part of its drinking water from ...

  • Successful in situ reductive biological treatment of high explosives

    Groundwater impacted by high explosives (HE) such as RDX and TNT pose great challenges for environmental remediation. The properties of HE tend to lead to the selection of groundwater extraction and treatment while causing above ground treatment processes to be expensive to operate. An interim corrective measure (ICM) pilot test of in-situ reductive biological treatment is ongoing at the U.S. ...


    By RNAS Remediation Products

  • In-Situ thermal treatment of MGP waste and creosote

    Abstract: Remediation of coal tar at former Manufactured Gas Plant (MGP) sites, and creosote associated with wood preservative sites is challenging due to the viscous nature of the dense non-aqueous phase liquid (DNAPL) and the modest solubility and vapor pressure of the contaminants of concern (COCs). DNAPL seepage into surface water bodies, as well as groundwater plumes formed by the most ...


    By TerraTherm, Inc.

  • Earth Tech Successfully Demonstrates in situ Reductive Treatment of Groundwater Contaminated with Explosives and Nitrate Using HRC®

    Earth Tech has recently completed the first field-scale demonstration of in situ treatment of explosives-contaminated groundwater using Hydrogen Release Compound (HRC®). Explosives and nitrate contamination in groundwater are widespread at military facilities worldwide and, until now, have been difficult and expensive to address. The study, completed in January 2001, was performed by Earth ...


    By REGENESIS

  • Multifunctional Well Implemented for In Situ Remediation of Hydrocarbon Contaminations in Soil and Groundwater

    Abstract A recently developed Multifunctional Well has been implemented for the remediation of subsurface contamination caused by hydrocarbon spills. Four different remediation processes can be operated within the same well. At optimal efficiency of each remediation process, successive treatment of the capillary fringes, the vadose zone, and the aquifer can be accomplished. Each treatment ...


  • Metals in Groundwater Immobilized Using Multiple-Mechanism In Situ Approach

    Until a way is invented to destroy elemental metals in groundwater, environmental practitioners have just a few ways of dealing with them. Water can be extracted for treatment, or the metals can be immobilized in place. The problem with pumping the groundwater is that such systems are usually operated for many years, if not decades, with minimal improvement in groundwater quality unless the ...


  • In Situ Bioremediation of Chlorinated Solvents

    ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source ...


    By EOS Remediation, LLC

  • Southern California Edison Santa Barbara I MGP in-situ ozone treatment groundwater progress monitoring

    Southern California EdisonSanta Barbara - Former MGP siteIn-situ Ozone TreatmentPiper Case History #1-------------------------------------------------------Problem: Former MGP site containing VOC and PAH contamination needed aggressive soil and groundwater remediation.Project Solution: • Phase I - Limited Soil Excavation near Former Gasholder• Phase II – In-Situ ...

  • Continuous treatments of synthetic groundwater by an in situ denitrification and oxidation process with injection of electrolytic hydrogen and oxygen

    Long-term continuous treatments of synthetic groundwater containing 15.06 ± 0.55 mg-N/L nitrate were conducted using an in situ denitrification and oxidation process under different operating conditions. In the experiments, electrolytic hydrogen and oxygen were injected upstream and downstream in a laboratory-scale aquifer, respectively, and measurements were made for nitrate, ...


    By IWA Publishing

  • Soil & Groundwater Treatment of Tetrochloroethene (PERC)

    Project: Treated 200-300 cubic yards of Tetrachloroethene contaminated soil and groundwater Client: Dry Cleaners Location: Lexington, Kentucky Scope of work: In-Situ Bioremediation Project cost: $3,500 per treatment (Included products and labor) Source of contamination: Leaking ...

  • In Situ Flushing - Technology Overview

    In situ flushing is the injection or infiltration of an aqueous solution into a zone of contaminated soil/groundwater, followed by downgradient extraction of groundwater and elutriate (flushing solution mixed with the contaminants) and aboveground treatment and discharge or re-injection. Flushing solutions range from plain water to surfactants, cosolvents, or other facilitators. In situ flushing ...

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