cleaning contaminated site Articles

  • Efficient Wastewater cleaning for Insulin Production

    Insulin production using biotechnology is now a standard procedure, but it leads to a high level of contaminated wastewater due to tensides which are difficult to break down. A solution provided by EnviroChemie shows how production wastewater output with varying levels of contamination and toxicity can be cleaned efficiently. It combines aerobic and anaerobic steps as well as a low-temperature ...


    By EnviroChemie GmbH

  • Innovative approach to unforeseen site conditions – case study

    The Crater Resources Quarry 3 Remediation site was a former limestone quarry that was later used as a disposal site for Waste Ammonia Liquor (WAL) generated by the coke making facility at a steel mill. The WAL contained water, ammonia, and small amounts of various hydrocarbons formed during the coking process. Coking operations shut down by the mid 1980's and discharge into the quarry ceased. The ...

  • Controlling Bacteria In a Clean Room Environment

    Maintaining the integrity of a cleanroom is a constant battle. The first step to deciding which method, or combination of methods, to employ is to identify the prime sources of contamination. There are three prime sources of contamination through which the integrity of a cleanroom might be breached. First, there is the human element. While many processes might be automated, many situations remain ...


    By GVS Filter Technology

  • Site Closure Strategies: Reducing Remediation Liabilities & Costs

    Industrial companies face the daunting task of managing investigations and clean-ups at thousands of contaminated properties. In staying abreast of new technology and ever-evolving regulatory programs, companies must address many challenges involving regulations, technologies, and expenses. To successfully manage the costs and risks for each project, it is important to: 1) Focus on the ultimate ...


    By AECOM

  • Mishandling of Hazardous Materials & Contaminants, Asbestos, Lead, Mould & Fungus, PCB`S

    Untitled Document Everyday in Canada and the United States Hazardous Materials are being removed improperly contaminating the buildings we occupy. The hazardous materials including ...

  • Heat Pump Used to Drain Contaminated Sludge in a Steel Factory

    Summary In 1987, new regulations required that factories dispose of their contaminated water and waste themselves. Making galvanised steel wire, the Stelfil factory produces sludge contaminated with lead and zinc. Stelfil spent thousands of dollars to bury this waste and evaluated three systems to remove most of the water: a gas dryer, an induction heated screw conveyor and a heat pump system. ...


  • Case study - World`s largest remediation site

    Overview Hong Kong's Kai Tak Airport, the world's busiest airport in 1997, became the world's largest remediation site once it was closed. When the airport was decommissioned in 1999 in favor of the new Chek Lap Kok Airport, the government planned to rapidly clean up the site for commercial and residential development. After many years of soil penetration by various ...

  • Gas analyzer builds complete picture of contamination - Case study

    Occupational health specialists from Wisconsin, USA, are utilising FTIR gas analysis technology to identify and quantify both known and unknown gas species in a wide variety of applications in which workers are potentially at risk. The FTIR instrument, a Gasmet DX4040, is owned by North Shore Environmental Construction (NSEC), a ...


    By Gasmet Technologies Oy

  • Simple Separation: Diverting Wood And Cardboard at Construction Sites

    Diverting Wood And Cardboard At Construction Sites Residential home construction in Wisconsin generates 128,000 tons of residuals annually, according to a 1998 study by Camp, Dresser & McKee. Ten builders are participating in a project to demonstrate how easily major components of this waste stream can be recycled. The Metropolitan Builders Association (MBA) of Greater Milwaukee, the ...


    By BioCycle Magazine

  • PCE and TCE Remediation at a Dry Cleaning Facility

    Site Summary Subsurface investigations at this operating dry cleaner site revealed elevated levels of PCE and TCE in the site soils and groundwater (perched aquifer). Soil remediation was accomplished via over-excavation in June of 1998. Accelerated bioremediation using HRC was selected to treat the groundwater contamination. The HRC ...


    By Regenesis

  • Leaks and spills - LNAP and DNAPL detection and clean up

    Any tank can leak. Most leaks can be cleaned up and responsible operators need equipment that does what’s needed. With an ATEX Zone 0 certified interface meter site operators can successfully achieve LNAP and DNAPL detection when monitoring petrochemical sites, tank farms, petrol station forecourts, landfills or remediation sites. If site technicians detect ...


    By Geotech

  • Inland oil spill clean up case study

    Introduction The essential strategy for inland spill clean up techniques should be containment, recovery and temporary storage. Secondary needs will include transportation and possible disposal - or recycling. It is important to discover the source of the spill which might not be straight forward. A steady slow seepage from a leaking disused oil storage tank may be very difficult ...

  • Firm pioneers PCB clean-up solution

    Untitled Document A Vancouver firm's bid to test a revolutionary technology that could provide a solution to the world's PCB problems was given initial support from Richmond's community ...


  • Rocky Flats Environmental Technology Site US Department of Energy

    Rocky Flats Closure Project Description On October 13, 2005, Kaiser-Hill Company LLC, a joint venture of CH2M HILL and Kaiser Engineers, announced completion of the Rocky Flats Closure Project, a 10-year project to clean up one of the most contaminated sites in the U. S. Department of Energy’s nuclear weapons complex. The 6,200-acre site was the location of plutonium and uranium “trigger” ...


    By CH2M Hill Companies, Ltd.

  • Farm site BTEX closure achieved within one year

    Soil and groundwater at the former Feley Farms Site (Michigan, USA) was impacted by gasoline constituents that originated from former USTs. The leaking tanks were removed in 1995; based on the reported petroleum-contaminated water seeping into the excavation hole along the surface of the bedrock during the tank removal process, groundwater monitoring was recommended. The results of the 1996-97 ...


  • TerraTherm to Remediate Soils at the Beede Waste Oil Superfund Site - Case Study

    The Beede Site is the former location of a state-licensed and regulated waste oil recycling and disposal facility. The nearly 41-acre Site is located in a residential area of Plaistow, New Hampshire (NH). Operations at the Site began in the 1920s, and continued until the state of NH ordered its closure in 1994. From the 1920s to 1994, thousands of NH residents and businesses were customers of the ...


    By TerraTherm, Inc.

  • PCB clean-up on behalf of the United Nations

    The Environmental Services group of ABB won a contract from the United Nations (UNOPS) for the clean-up and of a PCB spill in Yugoslavia and for the disposal of the resulting PCB wastes. This project is the first clean-up of ...

  • Case Study: Arjo Wiggins Factory Site, North Hykeham

    In January 2000, Blackwell were appointed as the main contractor for the remediation of an industrial site in Lincolnshire. The site was formerly used in the manufacture of thermal papers, had become contaminated with metalliferous mercy, zinc and asbestos. Site remediation was primarily driven by high ground water vulnerability. Following a comprehensive option study, volume reduction by Soils ...

  • ASTM Standards Help Meet Need for Clean Water

    The new ASTM Water Portal provides a single access point to standards and related information about ASTM International’s diverse committees working to protect and monitor this vital global resource. Clean and safe water is the underpinning of the quality of life for people around the world. Global economies depend on water, whether it’s to support the manufacturing of goods ...


    By ASTM International

  • California Demands Disclosure of Chemicals in Cleaning Products

    California Becomes First US State to Require Manufacturers of Designated Cleaning Products to Disclose Hazardous Chemicals on Labels and Online ...

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