Types of Landfills
Engineered landfills have a ____
What is a liner
The process of choosing a landfill location
What is siting
The purpose of this is to prevent groundwater pollution
What is the liner
The two largest proportions of extracted landfill gas
Methane and carbon dioxide
Sharps are regarded at this type of waste
Infectious waste
Natural attenuation landfills rely on ____ to treat leachate
What is soil
Navigable lakes, floodplains, and airports are examples of this
Where landfills cannot be sited
Liner specifications can be found in this NR Wisconsin Administrative Code
NR 504 (or the 500 series)
This is the primary source of leachate formation
precipitation (rain/snow)
The most common cause of injury in a landfill
slips, trips, and falls
Concrete, bricks, asphalt, wood, masonry, and/or roofing can be found in this
What is a construction and demolition landfill
An _______ size C&D landfill is between 50,000 and 250,000 cubic yards
What is intermediate
The required distance above the seasonal high ground water table to install the liner
What is 10 feet
These gas collection wells must be installed during the landfill filling process
horizontal wells
A trench greater than 5 feet is considered this
A confined space
The three categories of Wisconsin landfills
Construction and Demolition, Municipal, and High Volume Industrial Waste
When constructing clay liners, lift heights should be less than _____ after compaction
six inches
The final cover surface grade, permeability of capping layer, and precipitation affect this
The infiltration passing through the final cover
This process frees up "air space" and reduces overall leachate production
Recirculation of leachate
These inspections occur once a month or every 5,000 tons at municipal solid waste landfills
Random load inspections
This type of landfill is federally regulated
What is municipal solid waste landfills
What is used to reduce odors, windblown material, and animal activity
Daily cover
This is where the HDPE liner is located
Above the clay layer, under a drainage layer, under the waste
This leachate line process should be done immediately after construction and annually
Cleaned with high-pressure water jet
Wastes containing mercury, batteries, oil, and pesticides from individual households
Universal wastes