Tag: landfill cell

A landfill liner, or composite liner, is intended to be a low a 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, causing spoliation of the local water.
Modern landfills generally require a layer of compacted clay with a minimum required thickness and a maximum allowable hydraulic conductivity, overlaid by a high-density polyethylene geomembrane.

Structural Integrity That Lasts

Structural Integrity That Lasts

Capping and closing a municipal solid waste (MSW) landfill can be a civil engineering challenge. The goal is to eliminate any need for further erosion control work onsite to ensure that the landfill keeps its structural integrity. True, landfill owners are required to adhere to EPA’s post-closure rules as defined

Machine Control: The New Normal

Machine Control: The New Normal

Mike Bowman, president of M & C Excavating in Fountaintown, IN, has used machine control technology in his business for some time. “If you’re going to be competitive, you will have to get into this,” he says. “I don’t think you’re going to have a choice. It’s a big player

Landfill Mining: Current Trends

The beneficial purposes can include recovery of recyclable materials, recovery of soils for use as daily or intermediate cover in active landfills, or recovery of land area for redevelopment. As urban sprawl has continued in many metropolitan areas, landfills—which previously were located in areas relatively distant from the population centers—are

Structural Integrity That Lasts

Structural Integrity That Lasts

Capping and closing a municipal solid waste (MSW) landfill can be a civil engineering challenge. The goal is to eliminate any need for further erosion control work on the site to ensure that the landfill keeps its structural integrity. True, landfill owners are required to adhere to EPA’s post-closure rules

Counting Down to Zero

Counting Down to Zero

The answers depend on the particular solid waste manager with whom one speaks and the location of the operation. State and local regulations are part of the mix, as are regional practices. “Zero waste sets a clear direction for reducing waste to the highest degree possible, consistent with the global

Scratching the Surface of Scrapers

Scratching the Surface of Scrapers

Everyone knows that scrapers provide an economical method for moving dirt, but because every job is different, choosing the right scraper can be complicated. However, in order to be more competitive in bidding jobs and more efficient on the job site, contractors need to understand the benefits of each scraper

Time, Money, and the Frugal Landfill Operator

Time, Money, and the Frugal Landfill Operator

Nobody has to tell a landfill operator how to be industrious. Hard work and long hours come with the job, a job that includes everything from balancing the books to personally operating heavy equipment, to meeting with an often hostile public and even to helping to pick up blow litter

Counting on Geosynthetics

Counting on Geosynthetics

From roads and trails to airport runways, geosynthetics are playing a key role in erosion and sediment control efforts under way throughout the United States. American Tobacco Trail The American Tobacco Trail is a 20-mile Rails-to-Trails project that runs from Durham County to Chatham County in North Carolina along an

End-of-Life Decisions: To Cap, or To Mine

End-of-Life Decisions: To Cap, or To Mine

Closure of landfill cells involves the costly effort of capping to meet USEPA’s regulatory requirements. After closure, the landfill cell cap must be monitored and maintained for a minimum period of 30 years. The long-term maintenance costs include collection and treatment of leachate, as well as the collection and utilization

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