Tag: landfill liner

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.

Landfill Liners and Covers Put a Lock on Leachate

Landfill Liners and Covers Put a Lock on Leachate

There are two driving factors: the liner and the cover. How they are designed and installed, what materials are used, and how it is maintained play a significant role in achieving a high degree of assurance of environmental integrity throughout the period in which post-closure care is required.

Experts agree that

Landfill Liners and Covers

Landfill Liners and Covers

There are two driving factors: the liner and the cover. How they are designed and installed, what materials are used, and how it is maintained play a significant role in achieving a high degree of assurance of environmental integrity throughout the period in which post-closure care is required.

More Than One Liner

More Than One Liner

Based on the timeline of when people began generating trash and tossing it into a heap, landfill liners are a relatively new development. And depending on your age, you may even remember when landfills were unlined holes in the ground-often gravel pits or wetlands that needed to be filled. I

LFG: Focus and Recovery

LFG: Focus and Recovery

Landfill gas extraction efficiency from an MSW landfill was declining precipitously due to waste-derived fluid incursion into the gas extraction wells. The reduced methane harvest resulted in a financial hardship for the contracted vendor and lowered revenues for the landfill owner (a municipal authority). The 35-acre, 760-tons-per-day, central Virginia MSW

Profits Under the ADC

Profits Under the ADC

Landfills are a unique business in that they require exceptionally high up front capital costs to being operations. These costs include site hydrogeological investigations, engineering design and permitting, installation of support facilities such as office buildings and truck scales, construction of the liner and leachate management systems, and (later) the

A MRF Matures

A MRF Matures

After the passage of California Assembly Bill 939 in 1989-which required 25% diversion of solid waste from landfills or incinerators by 1995 and 50% by the year 2000-local governments in Placer County faced the same choices as other agencies in California. The centerpiece of their compliance approach, however, turned out

Controlling the Airspace

Landfill operators have to be diligent in their tracking of airspace utilization. This is because landfills basically sell thin air, and their profitability depends directly on how much waste they can pack into a given volume of disposal space. But operators will have no idea how well they are using

The Long-Term Management and Care of Closed Subtitle D Landfills

In 2010, the SWANA Applied Research Foundation (ARF) developed a report to identify, characterize and address the issues associated with the long-term management and care of closed Subtitle D landfills. This research need was submitted by the city of Winston-Salem, North Carolina, and voted on for selection by the ARF’s

Bioreactor Landfill Stability: Key Considerations

Designers and regulators often express concern that the introduction of water or other liquids to enhance the degradation of the waste will reduce the stability of the waste mass. Although the introduction of liquids has several potentially destabilizing effects, they can be mitigated through sound design, construction, and operating practices.

2003 SWANA Landfill Excellence Awards

Gold Award: Waste Management of New Hampshire Inc. Turnkey Recycling and Environmental EnterpriseThe Turnkey Recycling and Environmental Enterprise (TREE) facility is owned and operated by Waste Management of New Hampshire Inc. (WMNH), a subsidiary of Waste Management Inc. The facility is located in southeastern New Hampshire and consists of 1,213

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