remedial barrier Articles

  • In Situ Remediation Technology Status Report: Research and Application of Permeable Barriers

    This document is an attempt to compile worldwide research efforts and applications in the field of permeable reactive barriers (PRB). The listing will evolve as input is received. Apologies are made for any inadvertent omissions or errors. Typically, many people are responsible for a project; however, for simplicity, a single contact is provided for each project. Research projects are organized ...

  • Permeable Adsorbing Barriers for groundwater remediation from hexavalent chrome pollution

    Chrome ions removal from aqueous solutions by adsorption onto an activated carbon (Aquacarb 207EA by Sutcliffe Carbon) and a South African coal char is illustrated. Different chrome concentrations, pH and salinity levels are tested. Experimental data are interpreted by means of a Langmuir approach-based model. Results show that a Permeable Adsorbing Barrier (PAB) made of Aquacarb 207EA can ...


    By Inderscience Publishers

  • Remediation of MSW landfill leachate by permeable reactive barrier with vegetation

    This research was conducted to investigate in situ treatment of leachate by pilot-scale permeable reactive barrier (PRB) with vegetation. Two different types of PRB media, with and without the presence of ferric chloride sludge, for the removal of pollutants were examined. The composite media of PRB comprised a clay and sand mixture of 40:60%w/w (system 1) and a clay, ferric chloride ...


    By IWA Publishing

  • Evaluation of Permeable Reactive Barrier Performance

    Untitled Document This report on the performance of permeable reactive barriers (PRB) for groundwater remediation was prepared under the ...

  • Remediation of RDX- and HMX-contaminated groundwater using organic mulch permeable reactive barriers

    Organic mulch is a complex organic material that is typically populated with its own consortium of microorganisms. The organisms in mulch breakdown complex organics to soluble carbon, which can then be used by these and other microorganisms as an electron donor for treating RDX and HMX via reductive pathways. A bench-scale treatability study with organic mulch was conducted for the treatment of ...


  • Organoclay-filled reactive core mat dnapl remedial barrier proves succesful case study

    Project : Koppers Wood Treatment Facility Location : Guthrie, KY Products : Reactive Core Mat Background: This is a case study of an active wood-treatment plant that has operated in southwestern Kentucky since 1913. Historically, creosote dripped from treated rail cross ties following their removal from a pressure cylinder. ...


    By CETCO

  • Case study - Reactive barrier wall project update

    Reactive Barrier Wall solves space and on-going activity problems during remediation project “Name Removed”, was contracted to install a passive reactive barrier wall in “Name Removed”. The wall was designed to remediate groundwater containing tetrachloroethylene (TCE). What made this job unique was the site location. Installation would occur in an operating commercial ...

  • Installation of vertical barriers using deep soil mixing

    Introduction As contamination from liquid wastes and polluted groundwater continue to be a major environmental remediation topic, methods and applications for installing vertical barriers continue to evolve. The need to contain the pollutants to reduce their potential effects has broadened the scope of a vertical barrier. Greater depths than before are required as the contamination continues ...


    By Geo-Con, Inc.

  • Edible Oil Barriers for Treatment of Perchlorate Contaminated Groundwater

    An EOS® biobarrier was designed and implemented to remediate perchlorate contaminated groundwater. The report describes the site characterization, design steps, implementation, monitoring results and lessons learned from this effective remedial approach. EXECUTIVE SUMMARYThis final technical report documents the demonstration of emulsified edible oils for remediation of perchlorate in ...


    By EOS Remediation, LLC

  • Field Demonstration of a Permeable Bioreactive Barrier for Leachate Control.

    ABSTRACT: A biostimulation technique was selected for a pilot study to treat groundwater at a former New Jersey municipal landfill. The process will address a mixture of chlorinated compounds (e.g. vinyl chloride and chlorobenzene), hydrocarbons (e.g. benzene and methyl ethyl ketone) and heavy metals. The reactive barrier will be constructed using a series of injection points to implace a slurry ...


    By REGENESIS

  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • Dredging and Shoreline Remediation

    Many situations can complicate a shoreline’s integrity.  These can range from flooding, hurricanes and man-made disasters and can even include aquatic harvesting and human recreation.  Making efforts to protect a shoreline from these intrusions helps protect economic and recreational interests.  Shoreline remediation is an investment in the overall economic and natural ...


    By SRS Crisafulli, Inc.

  • Organoclay permeable reactive barrier utilized to control napl contamination case study

    Project : Bay Project - Union Pacifi c Railroad Location : Escanaba, MI Products : Bulk Organoclay, Reactive Core Mat Background: The groundwater at a former creosote wood treating site was contaminated by non-aqueous phase liquid (NAPL). The contaminated groundwater was a threat to the nearby fresh water bay when NAPL and ...


    By CETCO

  • Concurrent bioremediation of perchlorate and 1,1,1-trichloroethane in an emulsified oil barrier

    Abstract A detailed field pilot test was conducted to evaluate the use of edible oil emulsions for enhanced in situ biodegradation of perchlorate and chlorinated solvents in groundwater. Edible oil substrate (EOS®) was injected into a line of ten direct push injection wells over a 2-day period to form a 15-m-long biologically active permeable reactive barrier (bio-barrier). Field ...


    By EOS Remediation, LLC

  • Explosives remediation at Pueblo Chemical Depot changes course

    Treatment of soil and groundwater contaminated by energetic compounds has been underway since 1997 at area of interest (AOI) 3B of the Pueblo Chemical Depot (PCD) in Colorado. AOI 3B is part of the source of an explosives-contaminated groundwater plume. Initial work involved excavation and onsite composting of soil to address the contaminant source. In 2001, a pump and treat system using granular ...

  • Nipper Tower Brownfield Remediation Project – Camden, NJ

    Site Summary Built between 1915 and 1916, the “ Nipper Tower,” with its’ stained glass rendition of the RCA trademark of the Nipper dog listening to a phonograph watched over the Camden, NJ waterfront for 80 plus years. In 2000, a localdeveloper sought to redevelop the abandoned, vacant, underused and contaminated property (Brownfield) and move it back into productive use. The Nipper ...


    By REGENESIS

  • Remediating groundwater contaminated with chlorinated solvents - a Canadian perspective

    Chlorinated solvent contamination of groundwater is a recognized barrier to both potable water use and brownfield site redevelopment in Canada. Several high-profile trichloroethene (TCE) contaminant issues such as those in Cambridge, Ontario, and in Shannon, Québec, have increased public awareness of this problem, and also stimulated the Canadian consulting community to consider the use of in ...


  • The no. 1 choice for improving the performance of soil and groundwater remediation

    Adsorption of Contamination The number one challenge associated with most site remediation designs and methodologies is that 90% to 95% of all environmental contaminants; including hydrocarbons (LNAPL), chlorinates (DNAPL), and heavy metals; are present in a sorbed (i.e., absorbed or adsorbed) phase onto soil and bedrock surfaces within both saturated and unsaturated zones. As such, the absorbed ...


    By Ivey International Inc.

  • Spolchemie site remediation and NanoRem field site application

    Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the ...


    By NANO IRON s.r.o.

  • The DNAPL Remediation Challenge: Is There a Case for Source Depletion?

    Untitled Document Executive Summary Introduction Releases of Dense Non-Aqueous Phase Liquids (DNAPLs) at a large number of public ...


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