sampling liner Articles

  • Landfill Liners Vary by Application

    It was in 1991 that the Environmental Protection Agency promulgated its Criteria for Municipal Waste Landfills that set location restrictions, design and operating standards, groundwater monitoring requirements, corrective actions, closure requirements, and more for landfills. It was these rules that mandated that landfills be lined on the sides and bottom before waste is deposited and capped on ...


    By Agru America, Inc.

  • Assessing Frost Damage in Compacted Clay Liners

    Methods used to assess frost damage (here defined as a large increase in hydraulic conductivity) in compacted clay liners are reviewed and evaluated using data collected from two test pads that were instrumented and then exposed to winter weather. The methods include comparisons of measurements of either water content and dry unit weight or hydraulic conductivity made before and after winter ...


    By ASTM International

  • Costs and Benefits of Geomembrane Liner Installation CQA

    ABSTRACT Because the cost of third-party construction quality assurance (CQA) of geomembrane liner installations is typically comparable to the cost of the geomembrane liner, CQA must be optimized to obtain the most benefit for the owner, rate payers, and environment. A regulation-based CQA protocol usually includes testing the material, observing the quality control (QC) program of the ...

  • Pollution level detection in dump clay liners by hyperspectral imaging

    Landfill is the most common and cost–effective method of waste disposal, with collection and transportation accounting for 75% of the total cost. A key point in waste disposal is the picking up and the drainage of percolation fluids to limit the risk of groundwater contamination. Aim of this study was to evaluate the possibility to develop fast and reliable methods to perform an in situ ...


    By Inderscience Publishers

  • Hydraulic conductivity of compacted clay liners permeated with inorganic salt solutions

    Due to their low permeability, geosynthetic clay liners (GCLs) and compacted clay liners (CCLs) are the main materials used in waste disposal landfills. The hydraulic conductivity of GCLs and CCLs is closely related to the chemistry of the permeant fluid. In this study, the effect on the hydraulic conductivity of clays of five different inorganic salt solutions as permeant fluid was ...


    By SAGE Publications

  • Comparison of dye testing and electrical leak location testing of a solid waste liner system

    Abstract: Dye tracing and electrical leak location testing were independently conducted to detect and locate leaks in the primary geomembrane liner of two cells in a municipal landfill. Despite extensive quality control and quality assurance programs, water in the leak detection zone after construction indicated that the primary liner had a leak. Fluorescein dye tests were conducted by placing a ...

  • Evaluation of geomembrane, amended soil and composite liner system as lining materials for chromium decontamination in landfill site

    A comprehensive laboratory and field–scale study was performed to explore the efficacies of geomembrane, amended soil liner material and composite liner packs for using as containment liner systems for attenuating chromium transport emanating from a chrome laden solid waste disposal site. Soil samples were collected from the site and were admixed with different amended materials, such as rice ...


    By Inderscience Publishers

  • Compatibility of compacted lateritic soil treated with bagasse ash and Municipal Solid Waste leachate

    Compatibility tests were carried out on lateritic soil treated with up to 12% bagasse ash compacted at about 2% wet of their respective optimum moistures using the standard Proctor energy. Samples were sequentially permeated with distilled water and municipal solid waste (MSW) leachate for 22 and 69 days, respectively, until steady flows were established. The final hydraulic conductivity values ...


    By Inderscience Publishers

  • Analysis of Organophosphorus and Organonitrogen herbicides in water using GC/MS with selected ion recording

    Laboratories monitoring trace level pesticides and herbicides by gas chromatography/mass spectrometry (GC/MS) frequently utilize Selected Ion Recording (SIR) techniques to maximize analytical sensitivity for quantification. With analytical standards, precision is limited to a large extent only by the autosampler and other instrumental effects. However, real-world samples pose a greater challenge. ...


    By PerkinElmer, Inc.

  • GKN aerospace success with portable impedance meter

    The GKN site in Cowes, Isle of Wight, UK, has long experience in the design and manufacture of passive sound insulation systems for air-intakes and by-pass ducts of aircraft engine nacelles. Dr. Armando Vavalle, Technology Development Engineer from GKN reports here on impedance tests conducted with Brüel &Kjær’s Portable Impedance Meter Type 9737 for the development of such ...

  • Detection of PCB in water using the ensys test kit

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: 1260: 50 ppb 1254: 50 ppb 1248: 100 ppb 1242: 200 ppb 1232: 400 ppb 1016: 400 ppb MATERIALS: Ensys PCB 12 Test Kit, item # 7020301. Ensys PCB Soil Extraction Kit #7020300EA. Clean tap or deionized water. Equipment: Ensys Field System ...


  • Hydraulic conductivity of residual lateritic soil permeated with organic chemicals

    In this study, three lateritic soil samples compacted at 2% wet of optimum moisture content with British Standard Light (BSL) effort were permeated with acetone and ethanol over a range of concentrations (0, 25, 50, 75, 100%), while benzene and heptane were used at full strength. Hydraulic conductivity of specimens permeated with diluted solutions of acetone and ethanol ( ...


    By Inderscience Publishers

  • Ground Penetrating Radar Evaluation of Concrete Tunnel Linings

    Abstract - Ground penetrating radar was used to map tunnel lining condition and locate concrete deterioration and voids in a continuous and non destructive manner. GPR surveying of Kapoor Water Supply Tunnel, Victoria, Canada was carried out with a 1000 MHz Sensors and Software Ltd., Conquest system mounted on a custom built cart. This 8.8 km long 2.3 m diameter concrete lined circular tunnel was ...


    By SewerVUE

  • Impact of artificial monolayer application on stored water quality at the air–water interface

    Evaporation mitigation has the potential to significantly improve water use efficiency, with repeat applications of artificial monolayer formulations the most cost-effective strategy for large water storages. Field investigations of the impact of artificial monolayers on water quality have been limited by wind and wave turbulence, and beaching. Two suspended covers differing in permeability to ...


    By IWA Publishing

  • Detection of chlordane in water

    MATRIX: Water (surface, ground and drinking) ANALYTE: Chlordane RANGE OF DETECTION: 2.0 to 60.0 ppb MATERIALS: EnviroGard Chlordane in Soil Test Kit (Item #73110) Methanol (pesticide grade) Glass vials with teflon lines caps PROCEDURAL NOTES: Water samples should be collected in glass ...


  • Impact of artificial monolayer application on stored water quality at the air–water interface

    Evaporation mitigation has the potential to significantly improve water use efficiency, with repeat applications of artificial monolayer formulations the most cost-effective strategy for large water storages. Field investigations of the impact of artificial monolayers on water quality have been limited by wind and wave turbulence, and beaching. Two suspended covers differing in permeability to ...


    By IWA Publishing

  • Detection of DDT in water

    MATRIX: Water (surface, ground and drinking) ANALYTE: DDT RANGE OF DETECTION: 10 to 500 ppb MATERIALS: EnviroGard DDT in Soil Test Kit (Item #73100). Methanol (pesticide grade). Glass vials with teflon lines caps. PROCEDURAL NOTES: Water samples should be collected in glass vessels with teflon cap ...


  • Petrol and heating oil bioremediation using EU70 (case study)

    As a result of an accident a tanker lost its load of petrol and heating fuel. A large quantity of fuel approximately 2000 litres soaked into the soil. Analyses revealed that the average level of hydrocarbons present was in the order of 0.55 %. The pollution affected an area of 100 m2 and to a depth of 0.6 m. Our goal was to reduce hydrocarbon levels to the lowest possible value in order to ...


    By Bio Systems Europe

  • Large Volume Splitless Injection Using an Unmodified Split/Splitless Inlet and GC-TOFMS for Pesticides and Brominated Flame Retardants

    Abstract Large volume splitless injection for gas chromatography typically requires a special injection port, for example, a programmable temperature vaporizer (PTV), but an alternative setup using concurrent solvent recondensation–large volume splitless injection (CSR-LVSI) and a split/splitless injection port has been reported. This technique was used here, both with and without ...


    By Restek Corporation

  • Sustainable, Low-maintenance Disinfection for Onsite Systems

    Most of the regulations applicable for onsite wastewater treatment system are based on the use of native soil for effluent dispersal. However, there are more and more situations where dispersal of effluent in native soil is impossible: repairs of existing systems on undersized lots for implementation of required dispersal fields: sites located in soils having low permeability: or where the ...


    By Premier Tech Aqua

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