well caps Articles

  • Solar energy landfill caps

    Things weren’t going well at the Erewhon Landfill. It was time to close the facility, and there was no soil left onsite for construction of the cap. Erewhon was a County facility, and the money available for 30 years of post-closure gas monitoring, groundwater sampling and reporting, erosion repairs and maintenance of a grass cover was sorely needed elsewhere. The landfill manager recalled ...


    By Waste Advantage Magazine

  • What can I use to filter my mobile phase?

    If you are using mobile phase that contains salts or, generally, any components that are weighed out for its preparation, you will need to filter the solution before using with HPLC or UHPLC. The most common type of filtration is membrane microfiltration. We sell an extensive group of products for this and they are discussed very well in a blog ...


    By Restek Corporation

  • The Basics of Slope Stability Analysis for Geosynthetics

    Slope stability analysis is vital to preventing slope failures in a variety of engineering applications including landfill design, roads, dams and embankments, to name a few. Proper analysis anticipates both natural and manmade slopes and failure of foundations and retaining walls. This blog covers the necessity of slope stability analysis, how to conduct the analysis and the role of ...


    By Agru America, Inc.

  • Landfill Capping Systems: An Introduction to Options

    Geomembranes, predominately linear low-density polyethylene (LLDPE), have been used for landfill caps for decades. Waste Management World has noted how,” Generally they have performed extremely well but, not unexpectedly, there have been a few exceptions that have guided us in developing even better systems.” Currently, there are four commonly used options for landfill caps, each with ...


    By Agru America, Inc.

  • KTK landfill capping - geosynthetic lining

    Landfill capping works are currently ongoing at KTK Landfill, Kilcullen, Co. Kildare to complete the final capping works at the facility. The capping area of the project is approximately 93,000m2 with Lining Technology providing lining crews and an excavator for the supply and installation of both smooth and double textured LLDPE liner. Works also involved sealing around existing gas wells and ...

  • Efficiency left out of cap and trade

    Waxman/Markey’s climate change bill is about 1,400 pages. Its length and complexity, alone, provides fuel for its opponents. Would it stand a better chance of enactment if it encompassed less?For example, would it have been wiser if Congress pursued cap and trade one year and a renewable energy standard another? I’ve asked this question a lot during interviews the past few weeks, and received a ...

  • GCL serves as cap in brownfield remediation site

    PROJECT: Patterson Plank Road Brownfield Remediation LOCATION: Patterson, New Jersey PRODUCTS: BENTOMAT® SDN BACKGROUND: This New Jersey brownfield was formerly the site of a chemical recycling facility. CHALLENGE: The soil at the site was heavily contaminated, and off-site removal would have ...


    By CETCO

  • Distribution and targeting of the CAP budget from a biodiversity perspective

    Executive summary Change in agricultural land use is a major cause of the decline of biodiversity in Europe. This is characterised by widespread intensification of farming systems on better land, and abandonment or afforestation of poorer land. More traditional, low‑intensity farming systems with high nature value are gradually disappearing. In the Kyiv Resolution on ...

  • Kyletalesha landfill cell 15A capping - geosynthetic lining – case study

    Landfill capping works have been completed at on Cell 15A at Kyletalesha Landfill, Portlaoise, Co. Laois for Laois County Council. Capping works consisted of a combination a permanent and temporary capping system over an area of approximately 8,700m2 with Lining Technology providing lining crews for the supply and installation of a three layered capping system which included a 1.0mm double ...

  • Special price offered for the new NO2 CAPS AS32M analyzer

    New: the AS32M analyzer – approved by the US EPA – gets the TÜV certification for the measurement of NO2. Providing accurate and very precise ...


    By Environnement S.A

  • Hurricane Isaac caps off America’s summer of extreme weather

    This post was co-authored by Forbes Tompkins, an intern with WRI’s Climate and Energy Program. This post is part of WRI’s “Extreme Weather Watch” series, which explores the link between climate change and extreme events. Read our other posts ...

  • Locate buried monitoring wells case study

    A Phase II Environmental Site Investigation was being conducted at a gasoline station in Fort Myers, Florida. In order to minimize costs, our client intended to use several existing on-site monitoring wells rather than installing new wells. However, five of the existing wells had been covered with asphalt and were no longer visible. GeoView was tasked with performing a shallow geophysical study ...


    By GeoView, Inc.

  • Balboa Island/Little Island Pump Station - Odor Control & Grease Cap Treatment - Case Study

    Program Objectives Reduce Water Usage of Spray System Eliminate Formation of Grease Cap Reduce H2S Odors Prevent Insect Nesting & Reproduction Reduce Pump Out Requirements Enhance Sewage Line Maintenance Reduce Direct & Municipal Costs Basic Description of Pump Station ...


    By EcoJump LLC

  • Photoluminescence spectroscopy study of excited states in In x Ga 1–x As-capped InAs quantum dots

    This study reports on photoluminescence (PL) and PL excitation (PLE) spectroscopy studies of excited state transitions in In x Ga 1–x As-capped InAs quantum dots (QDs). InAs self-assembled QDs were grown on GaAs (001) wafers using 2.5 mono layer (ML) InAs deposition via molecular beam epitaxy. GaAs-capped QDs showed PL peak position at 1.182 μm at 78 K with a narrow full width at half ...


    By Inderscience Publishers

  • Activated carbon mat utilized in subaqueous cap on major superfund site case study

    Project: Stryker Bay Location: Duluth, MN Products: GAC Reactive Core Mat® (GAC = Granular Activated Carbon) Background: Stryker Bay was heavily polluted from the late 1800s through 1962. The harbor area was ringed with tar and coke plants, heavy industry and slaughterhouses that all discharged industrial waste into the ...


    By CETCO

  • Reactive mat used in creosote sediment cap remedy at a Portland superfund site case study

    Project: McCormick & Baxter Superfund Site Location: Portland, OR Products: Organoclay Reactive Core Mat Background: The former McCormick and Baxter Creosoting Company is located in Portland, Oregon on the Willamette River. This Superfund Site encompasses approximately 41 acres of land and an additional 23 acres of ...


    By CETCO

  • Active sediment cap included in clean-up strategy at high-profile superfund site case study

    Project: BROS Superfund Site Location: LOgan TOWTtsNp. NJ Products: Organoclay Reactive Core Mat BACKGROUND: Historical operations at the BROS Super-fund Site included waste oil storage, processing and disposal. The waste oil operations in addition to a major earthen dike breach in the 1970's resulted in extensive damage to ...


    By CETCO

  • CETCO gas vapor barrier chosen by top home builder for site with former oil wells case study

    Project: Palisades at Vista del Verde Location: Yorba Linda, CA Products: Liquid Boot 500 Gas Vapor Mitigation System, GeoVent Gas Venting System Background: The Palisades at Vista del Verde is a multi-family housing development that is situated on a site that once was home to numerous oil wells. The oil wells have since been ...


    By CETCO

  • Environmental Indicator Report 2013 - Natural Resources and Human Well-Being in a Green Economy

    In 2010, The European environment — state and outlook 2010: synthesis (EEA, 2010d) emphasised the increasingly systemic nature of environmental challenges and highlighted the need for greening the economy. It argued that further resource efficiency gains have to be realised to ensure resilient ecosystems that can deliver the natural resources and ecosystem services that we depend on. In ...

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