landfill cover Articles

  • Cover Page : Building Human Resources Instead of Landfills

     Building Human Resources Instead of Landfills THE Lane County, Oregon affiliate of St. Vincent de Paul (SVDP) — an international Catholic charity — thrives as a nonprofit that acts entrepreneurially. Under the leadership of Terry McDonald, St. Vincent capitalizes on niche market opportunities to convert more than 40 tons/day of discarded products destined to be landfilled into marketable ...


    By BioCycle Magazine

  • Monitoring System for Hydrologic Evaluation of Landfill Covers

    Three test sections were constructed and instrumented to assess the hydrologic behavior of earthen final covers at two municipal solid waste landfills. A traditional design using a “resistive barrier” was used for two of the test sections, whereas an alternative design using a “capillary barrier” was used for the third test section. The test sections were built in two distinctly different ...


    By ASTM International

  • Compost as a landfill cover material for the elimination of methane emissions

    Landfills, with about 40 - 60 Mio t emitted CH4 each year, are considered to be an important global source of the greenhouse gas methane. These emissions are especially caused by inadequate gas collection systems and uncontrolled emissions from old dumps and unauthorised open dumping. With traditional gas collection systems only 40 to 60 % of the produced gas can be collected and reused or safely ...


    By ORBIT e.V.

  • Evaluation of methane oxidation in a landfill cover material using a simple indicator approach

    Estimates of methane (CH4) oxidation rates (Rg) in biocovers are crucial for development of abatement strategies. Rg values were estimated in a landfill biocover with a simple approach based on gas diffusion theory. R ...


    By Inderscience Publishers

  • Locating Leaks in Geomembrane Liners of Landfills Covered With a Protective Soil

    ABSTRACT The electrical leak location method was used to locate leaks in the geomembrane liners of single-lined and double-lined landfills covered with a protective soil cover. The landfills ranged in size from 0.40 hectare (one-acre) to 3.2 hectares (eight-acre). Water in the leak detection system under the primary liner indicated the primary liners were leaking. The principal of ...

  • Methane oxidation in landfill cover soils, is a 10% default value reasonable?

    Received for publication May 10, 2008. We reviewed literature results from 42 determinations of the fraction of methane oxidized and 30 determinations of methane oxidation rate in a variety of soil types and landfill covers. Both column measurements and in situ field measurements were included. The means for the fraction of methane oxidized on transit across the soil covers ranged from 22 to 55% ...

  • 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.

  • Case study - Procurement and installation of a Biogas desulphurization unit at the Chania WWTP

    A proposal based on Bioconservacion’s technology was selected as the winning bid in the public tender released in 2015, covering the design, procurement and construction of a biogas desulfurizing unit to be installed in the waste water treatment plant in Chania, Greece. With a population over 100,000, Chania is the second largest municipality in the Greek island of Crete. Its waste water ...


    By Bioconservacion SA

  • In-situ moisture content measurement of landfill cover using Time Domain Reflectometry

    The amount of methane that vent from landfills is dependent on the physical, chemical and biological components of the soil cover; moisture content and temperature of the soil being the major controlling factors. Previous studies have attempted to correlate moisture content and temperature with methane emission by collecting soil samples from landfill soil covers and analysing it in the ...


    By Inderscience Publishers

  • Inox in a landfill

    For collection and transport of leachate, landfill sites are using various types of pumps. Grindex electrical corrosion resistant pumps provide the volume needed where pneumatic pumps and other submersibles pumps fall short. One of the landfills in Illinois has 18 Grindex corrosion resistant pumps in operation and they now have plans to replace all remaining submersibles with Grindex INOX pumps. ...


    By Grindex Pumps

  • Closure Options for Impoundments and Landfills

    In Kentucky, a county board votes to shut down a landfill that had long been the source of odor complaints from nearby residents. In Hawaii, residents push a city council to expedite a delayed landfill closure. Outside Beirut, Lebanon, protesters try to block trucks entering a landfill they say should have been closed a week earlier. These events, while certainly newsworthy, obscure the fact that ...


    By Agru America, Inc.

  • Landfill Cap Enhancements

    Introduction: The precipitation to the landfill cover is balanced by the combination of following effects: run-off, cumulating in soil, evapotranspiration, and percolation. For a given amount of precipitation, in order to reduce or eliminate percolation, the effects of run-off and/or evapotranspiration need to be enhanced. Water Harvesting Water harvesting uses ...

  • Landfills: considering the alternative

    The economic side of landfill management isn’t easy. Essentially there is a “product” being sold— airspace. Revenue is generated through tipping fees charged per ton. The more garbage taken in, the more income earned. From that perspective, selling space is good. However, as more garbage is taken in, less space remains and the landfill’s lifespan decreases. ...


    By Waste Advantage Magazine

  • Major Considerations in Landfill Closure

    Preparing for the closure and long-term care of a municipal solid waste landfill (MSWLF) can be an inordinate undertaking. Whether public or private, all landfills eventually reach the end of their active lifecycle. Before closure, a landfill must meet a series of criteria as determined by Subtitle D of the Resource Conservation and Recovery Act (RCRA). Following closure, those same regulations ...


    By Agru America, Inc.

  • 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

  • Performance of soil and compost mixture in leachate purification at intermediate cover soil of tropical landfill

    Leachate treatment was studied in simulated columns filled with different types of cover materials, i.e. (a) natural soil, (b) mixture of soil and planting soil, (c) mixture of soil and compost at 2:1 ratio and (d) mixture of soil and compost at 1:1 ratio. Filter performance was evaluated at different water application rates equivalent to rainfall intensity of 25, 50 and 100 mm/d. Leachate ...


    By Inderscience Publishers

  • Utilisation of Municipal Solid Waste Compost as landfill cover soil for reducing greenhouse gas emission

    Municipal Solid Waste Compost (MSW-C) was introduced for improving landfill cover soil properties and enhancing methane oxidation. The landfill cover soil was irrigated with leachate for maintaining appropriate moisture content for methane oxidation reaction. It was found that MSW-C was an effective landfill cover material for landfill gas emission control exhibiting the highest Methane Oxidation ...


    By Inderscience Publishers

  • EU Directive on the Landfill of Waste

    The Commission has adopted a new Proposal on the Landfill of Waste. The objective of this Proposal is to reduce the impact of waste disposal on the environment. Disposal of waste is the option of last resort in the hierarchy of waste management principles as stated by the Commission in its Waste Strategy Review of July 1996. In the Review the Commission gives clear preference to minimization and ...


  • Landfill leachate treatment

    Landfills are categorized by regulations in three types: industrial, municipal, and hazardous. Individual landfills may be further differentiated by the types of waste which they accept. All landfills are required to be capped, usually occurring at the end of each day. The cap is typically 6-8” of soil. The cap reduces odor and loss due to wind. At the closing of the landfill, a permanent ...


    By WesTech Engineering, Inc.

  • Landfills Expand Energy Output

    HIGH fossil fuel prices and growing concern about global climate change are creating favorable conditions for landfill gas energy (LFGE) projects. Notably, endorsement of LFGE by Federal agencies and many states as a form of “green” power has enabled LFGE developers to earn premiums for electricity marketed through green power programs, and to benefit from expanded federal tax credits for ...


    By BioCycle Magazine

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