remediation pump Articles

  • Case study - City of Montreal upgrade of Atwater and Des Baillets water treatment plants

    Sidestream Venturi Injection—Basin Nozzle Manifold Contacting System. Montreal, Quebec, Canada The Problem: In 2001, a water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. In response to the audit, the city upgraded the 1,400 MLD Atwater and the ...

  • Green remediation

    The US Environmental Protection Agency’s (EPA) strategic plan calls for increased research and application of sustainable systems that promote environmental stewardship, reduce greenhouse gas (GHG) emissions, and improve energy efficiency. One area of this research is green remediation. Green remediation is a relatively new approach to environmental cleanup; expanded from the traditional ...


  • Horizontal Directional Drilling - A Green and Sustainable Remediation Remedy

    Interest in using sustainable practices and technologies for environmental cleanup has increased notably within the past few years. The US EPA and many states have published recommended practices to reduce the environmental footprint of cleanup operations, and many consultants and contractors are attempting to “go green” in contaminated site remediation. It makes sense to conserve ...

  • Remediating Unforeseen Sewer Contaminants

    Getting the PCBs out Who: Jersey City, N.J., Municipal Utilities Authority Tons of clean sediment removed: 4,469 Tons of PCB-contaminated sediment: 2,502 Consulting engineer: Boswell Engineering: South Hackensack, N.J. Environmental maintenance contractor: National Water Main ...

  • 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.

  • Remediation contracting, Northern England

    Project Remediation Strategies were requested to attend a redevelopment site in North-West England to supervise excavation works in an area of known hydrocarbon contamination and to assist the developer in the short term recovery of hydrocarbons. Workscope A Response Team was mobilised to site with a mobile oil-water separator, pumps, pipework and an oil ...


    By Remediation Strategies Ltd.

  • Green remediation best management practices: pump and treat technologies

    Overview Pump and treat (P&T) technology typically is selected in a cleanup remedy to hydraulically contain contamination and/or restore an aquifer to beneficial use. Opportunities to reduce the energy and environmental footprint of a P&T remedy, which are available during site characterization and the remedy selection, design, construction, and operation phases, rely on effective planning and ...

  • Pump-and-Treat Ground-Water Remediation - A Guide for Decision Makers and Practitioners

    Pump-and-treat is one of the most widely used ground-water remediation technologies. Conventional pump-and-treat methods involve pumping contaminated water to the surface for treatment. This guide, however, uses the term pump and treat in a broad sense to include any system where withdrawal from or injection into ground water is part of a remediation strategy. Variations and enhancements of ...


    By QED Environmental Systems

  • Groundwater remediation pump and treat carberry, Manitoba case study

    Executive Summary Two of four underground gasoline tanks were removed from an old service station located in Carberry, Manitoba a number of years after the facility ceased operating. Two tanks were left on site and were used until 1985, when Manitoba Environment was notified that a domestic well in the vicinity of the abandoned site was contaminated with gasoline. The remaining tanks were ...


    By Nordevco Associates Ltd.

  • TCE/Fractured Bedrock Remediation in VA

    Site Summary At a manufacturing facility HRC was injected into a crystalline bedrock aquifer contaminated with TCE and its daughter products. Groundwater flow at this site is controlled by fractures in the crystalline rock with little or no permeability present beyond these fractures. The industrial facility had been in operation for over 30 years. Contamination levels reached 220 ppb of TCE so ...


    By REGENESIS

  • Groundwater remediation with Hydrogen Release Compound

    A substantial manufacturing site in Harlow, Essex, was contaminanated with chlorinated solvents used in degreasingoperations. The main compounds of concern were trichlorethene (TCE), trichlorethane (TCA) carbon tetrachloride (CT) and daughter products. The groundwater was at a depth to water of approximately 1.75m with a river around 600m to the north. Glacial deposits included variable clay ...


    By REGENESIS

  • Important Facts About Saltwater Remediation

    Soil that has suffered erosion due to salt, generally becomes useless to any kind of vegetation. This soil becomes crusty and if a lot of acreage is involved, it can cause upsets in ecosystems as well. While researchers have found some ways to treat these areas, the time those processes took were long and tedious. Thanks to today's technology for ...


    By SOS Environmental, Inc.

  • Perchlorate Remediation Project Case Study

    ARCADIS was contracted in 2000 to lead the development, evaluation and selection of a final groundwater remedy for this 94-acre site in California. As part of this work, ARCADIS is also participating in the evaluation of innovative technologies with the potential to treat soil impacts in the multiple source areas across the site. Specifically, the project is focused on the remediation of seven ...


    By Arcadis

  • Sonic making inroads on PCB remediation?

    The Sydney Tar Ponds of Nova Scotia are the result of a century of coal mining and steelmaking, which left behind 900,000 tonnes of chemical waste. About 5 per cent or 45,000 tonnes of this waste is contaminated with high levels of PCBs. Two years ago a federal-provincial plan was announced to clean up the Tar Ponds over 10 years at a cost of $400 million, and this led to the creation of the ...


  • Remediation of petroleum hydrocarbons in soil and groundwater

    Client: Power Generation Industry Location: Dagenham, London, England Services: Contaminated land site investigation, risk assessment and remediation services, due diligence    Summary: Our client was able to identify contamination arising from a tenant's activities, and obtain funds for remediation prior to ...

  • 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 ...


  • In Situ Remediation Technology Status Report: Electrokinetics

    The purpose of this document is to describe recent field demonstrations, commercial applications, and research on electrokinetics for either treatment of soil and ground water in situ or to increase the solubility and mobility of contaminants to improve their removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less costly, and ...

  • In Situ Remediation Technology Status Report: Surfactants

    ABSTRACT The purpose of this document is to describe recent field demonstrations, commercial applications, and research on surfactant use for either treatment of soil and ground water in situ or to increase the solubility and mobility of contaminants to improve t heir removal by pump-and-treat remediation. It is hoped that this information will allow more regular consideration of new, less ...


  • 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

  • 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.

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