Other Pages on This Site:

 

Landfills Project

 

Definition

 

Importance

 

Inside the Landfill

 

Solid Waste

 

 

 

Other Useful Sites:

 

Proposing a Landfill

 

Parts of A Landfill

 

 

 

A bulldozer builds a landfill.

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 How is a landfill built?

Steps in planning:

 

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Environmental impact study done.

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Permits are granted.

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Funds are raised.

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Construction finally begins.

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Roads are built to be used by construction equipment, sanitation services, and the

           general public. 
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The landfill can finally be excavated.

 

A bulldozer prepares a new cell.

  A bulldozer prepares a new cell.

 

Parts of a landfill:

 

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Bottom liner system - separates trash

           and leachate from groundwater
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Cells (old and new) - where the trash is stored within

           the landfill
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Storm water drainage system - collects

           rain water
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Leachate collection system - collects

           water that has percolated through

           the landfill
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Methane collection system - collects methane gas

           that is formed during the breakdown of trash
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Covering or cap - seals off the top  

 

Leachate System

 

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Water always get into a landfill

           no matter how good a system to

           exclude it was put in place. 
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Water percolates through the soil 

           in the landfill, as water percolates

           through coffee in the process of

           making your morning cup of coffee.
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Contaminants - on its way through

           water the soil collects contaminants
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Leachate is the name for this water

           with the dissolved contaminants.  It is

           usually acidic.

Cross Section of a Landfill

 

 Each part is designed

 for specific needs.

 

 The important issue

 is the possible  

 contamination

 of the surrounding

 environment,

 particularly

 groundwater.

 

 

 

Last updated 11/01/2006