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Environmental Waste Management > Landfills - Test II Material > Flashcards

Landfills - Test II Material Flashcards

1
Q

A mixture of a listed waste and a solid waste is considered a listed waste

A

Mixture Rule

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2
Q

Any waste generated from treatment, storage or disposal of a liquid waste remains listed

A

Derived-From Rule

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3
Q

Any soil, groundwater or other material containing a HW must be managed as a HW

A

Contained-in Rule

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4
Q

Site considerations

A
  1. Type of waste?
  2. Phase of waste?
  3. Who will the disposal site serve?
  4. What is the site capacity?
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5
Q

Landfill Area

A
  • Ac based on the area sericed by the facility
  • Recycling must be considered in landfill area cal.
  • How deep/high will the landfill waste be buried?
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6
Q

Landfill Area - Estimate Calculation

A

A = (27 V N ) / d

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7
Q

Defines the elevation of the deepest level of excavation at different areas of the landifll footprint

A

Base Grading

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8
Q

Landfill Permeability

A

Usually calculated w/ the Darcy Equation and media are oversimplified as homogenous materials

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9
Q

Polymer can be melted and on cooling it nearly reverts to its original structure

A

Thermoplastic polymers

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10
Q

Polymer that can be processed only once, bc further processing degrades the material

A

Thermoset polymers

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11
Q

Permeable geosynthetics composed of textiles

A

Geotextiles

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12
Q

Used for reinforcement

A

Woven geotextiles

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13
Q

Nonwoven geotextiles used for

A

Separation
Filtration
Drainage
Cushion

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14
Q

Textile formed by extruding molten polymer

A

Monofilament fibers

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15
Q

Textile formed by extruded polymer twisted together

A

Staple fibers

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16
Q

Textile formed by extruding continuous sheets that are the cut

A

Silt-film fibers

17
Q

Geogrids

A

Geosynthetic materials that have large open spaces between ribs, primarily used for reinforcement

18
Q

Corridors are provided for lateral and vertical migration of gases under natural pressure and convection gradients

A

Passive systems

19
Q

gas movement is induced by negative pressure applied to the system

A

Active systems

20
Q

General purposes of GW Monitoring

A
  • Monitor linear integrity
  • Monitor runoff infiltration
  • Monitor GW flow
  • Early detection of leaks
  • Hydrologic info
21
Q

Draw a cross section of a typical hazardous waste landfill construction prior to facility closure

A

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Environmental Waste Management (4 decks)

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