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The Hydrologic Evaluation of Landfill Performance (HELP) model is a quasi-two-dimensional hydrologic numerical model for conducting water balance analysis of landfills, cover systems, and other solid waste containment facilities; it was developed for the United States Environmental Protection Agency.
Landfill operation in Hawaii. The area being filled is a single, well-defined "cell" and a protective landfill liner is in place (exposed on the left) to prevent contamination by leachates migrating downward through the underlying geological formation. Landfills have the potential to cause a number of issues.
The Olusosun nigerian dumpsite is a 100-acre [1] dump in Lagos, Lagos State, Nigeria. [2] It is the largest in Africa, and one of the largest in the world. The site receives up to 10,000 tons of rubbish each day. Waste from around 500 container ships is also delivered to the site, adding a substantial portion of electronic waste. Some of this ...
The daily cover on an operational landfill site is the layer of compressed soil or earth which is laid on top of a day's deposition of waste. Benefits of using daily cover include: [1] Reduction of odor and air emissions; Control of disease vectors (birds, insects, and rodents) Improved surface stability for landfill vehicles; Control of litter
Some landfill sites are used for waste management purposes, such as temporary storage, consolidation and transfer, or for various stages of processing waste material, such as sorting, treatment, or recycling. Unless they are stabilized, landfills may undergo severe shaking or soil liquefaction of the ground during an earthquake.
The Fraunhofer Society spin-off [1] focuses upon the creation of Microsoft PowerPoint and Excel add-in products. [2] The company's main product – think-cell – aims to facilitate the creation of charts, e.g., bar charts, waterfall charts, Marimekko charts and Gantt charts, on Microsoft PowerPoint presentation slides from Microsoft Excel data ...
A landfill liner, or composite liner, is intended to be a low permeable barrier, which is laid down under engineered landfill sites. Until it deteriorates, the liner retards migration of leachate , and its toxic constituents, into underlying aquifers or nearby rivers from causing potentially irreversible contamination of the local waterway and ...
The use of landfill gas is considered a green fuel source because it offsets the use of environmentally damaging fuels such as oil or natural gas, destroys the heat-trapping gas methane, and the gas is generated by deposits of waste that are already in place. 450 of the 2,300 landfills in the United States have operational landfill gas ...