nrrl bioreactor construction update week of february 11 · 2-inch pvc injection wells. temporary...
TRANSCRIPT
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Introduction
NRRL Bioreactor Construction UpdateWeek of February 11
(photos taken 02/13/02)
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Update Summary
NRRL Bioreactor Construction• Construction progress meeting held on
February 13. • Work continued on the placement of the
exposed geomembrane cap (EGC) on the south slope.
• Work continued on the construction of the toe drain and gas collector trenches on the west slope.
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Progress on South Slope
South Slope: February 5
South Slope: February 13
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EGC Placement
Feb 5
Feb 13
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Deploying Geomembrane
Deploying Geomembrane
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Deploying Geomembrane
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Deploying Geomembrane
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Deploying Geomembrane
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Deploying Geomembrane
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Deploying Geomembrane
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Deploying Geomembrane
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Placing Sandbags
Sand bags are used to hold geomembrane temporarily in place.
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Fusion Welding
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Fusion Welder
Geomembrane rolls are fusion weldedtogether with a doublehot wedge weld.
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Fusion Welder
Double Wedge Fusion Welder
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Anchor Trench
EGC Anchor Trench
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Extrusion Weld on Anchor Trench
The weld at the anchortrench overlap is an extrusion weld.
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Injection Wells
The EGC is installed on the surface of landfill, above the injection wells. The wells must be extended through thecap after placement in a manner that provides a gas-tight connection. The following slides illustrate this process
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Solid Wasteand Daily
Cover
Soil
2-inch PVC injection wells TemporaryCaps
Thermocouple Wire
Process of Constructing EGC
over Injection Wells
EGC – Wells 1
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VFPE Geomembrane Placed on Surface of Landfill
Process of Constructing EGC
over Injection Wells
EGC Wells 2
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Geomembrane Cut Around Wells
Process of Constructing EGC
over Injection Wells
EGC Wells 3
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Geomembrane Cut Around Wells
EGC – Wells 4
Process of Constructing EGC
over Injection Wells
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Extrusion Weld Boots
EGC – Wells 4
Process of Constructing EGC
over Injection Wells
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EGC and Wells
As soon as geomembraneis pulled over wells, locationis marked.
At a later time, the geomembrane is cut aroundwell.
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Temporary Well Boots
Temporary Well Boots
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Temporary Well Boots after Well Extension
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Permanent Well Expansion Boots
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Boot Construction 1
Construction of Expansion Boot: 1 Note: Geomembrane used
for boot is illustratedin red for clarity.
Note: Boots are prefabricatedon site.Geomembrane Collar Around Well
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Boot Construction 2
Construction of Expansion Boot: 2 Note: Geomembrane used
for boot is illustratedin red for clarity.
Note: Boots are prefabricatedon site.
Boot Base Sheet
Extrusion Weld
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Boot Construction 3
Construction of Expansion Boot:3 Note: Geomembrane used
for boot is illustratedin red for clarity.
Note: Boots are prefabricatedon site.
Note: Boot Collar is Shownslightly expanded for clarity.
Boot Bellows
Extrusion Weld
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Boo Construction 4
Construction of Expansion Boot: 4 Note: Geomembrane used
for boot is illustratedin red for clarity.
Note: Boots are prefabricatedon site.
Note: Boot Collar is Shownslightly expanded for clarity.
Neoprene Gasket
Clamp
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Prefab Boots
PrefabricatedWell Boots
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How Boot Works - 1
How Does Expansion Boot Work?
Initial Condition
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How Boot Works - 2
How Does Expansion Boot Work?
Landfill Settles
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How Boot Works - 3
How Does Expansion Boot Work?
Adjust Collar
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MTG
A similar booting system is used for the MTG sensors
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MTG 2
A similar booting system is used for the
MTG sensors
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West Side Toe Drain
Construction of Toe Drain and Gas Collectors on the
West Side
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Welding Gas Pipe
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Bioreactor Sign
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