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5
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removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation
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6
|
the advanced treatment process, following secondary treatment of waste water
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7
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any method of surface coal mining that destroys a mountaintop or ridgeline
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8
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a type of mining in which soil and rock overlying the mineral deposit (the overburden) is removed
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11
|
The emission of radiation
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13
|
the second step in most waste treatment systems during which bacteria consume the organic parts of the wastes
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14
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the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock
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15
|
a combustion device to burn associated, unwanted or excess gases and liquids released during normal or unplanned over-pressuring operation in many industrial processes
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17
|
to store the waste made from separating minerals from rocks, or the slurry produced from tar sands mining.
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18
|
is a surface mining technique that extracts minerals from an open pit in the ground
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19
|
waste matter separated from metal during smelting
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20
|
is the material that lies above an area that lends itself to economical exploitation
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1
|
the process of purification of a (1) substance or a (2) form
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2
|
the process of water carrying soluble substances or small particles through soil or rock
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3
|
a type of wastewater that is produced by a community of people.
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4
|
the separation of a mixture into its component parts
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8
|
a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems.
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9
|
to add air or oxygen into a liquid.
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10
|
flat expanses of ground covered with salt and other minerals
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12
|
any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests.
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16
|
A disposal site where solid waste, such as paper, glass, and metal, is buried between layers of dirt and other materials in such a way as to reduce contamination of the surrounding land.
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