Skimming: Using a machine to remove oil or scum from the surface of the water.
Slow Sand Filtration: Passage of raw water through a bed of sand at low velocity, resulting in substantial removal of chemical and biological contaminants.
skimming Using a machine to remove oil or scum from the surface of water.
slake To mix with water with a true chemical combination (hydrolysis) taking place, such as in the slaking of lime.
settling, skimming, draining or filtering.
coagulation (co-AGG-yoo-LAY-shun). The clumping
together of very fine particles into larger particles caused by ...
Removing solids and floating matter from wastewater using screening, skimming and sedimentation (settling by gravity).
Reservoir
A place where water is stored until it is needed. A reservoir can be an open lake or an enclosed storage tank.
The first level of wastewater treatment, which uses settling, skimming, and, often, chlorination, to remove solids, floating materials, and pathogens.
priority pollutant ...
Agglomeration - (Water Quality) The grouping of small suspended particles into larger particles that are more easily removed through filtration, skimming, or settling. Also see Coagulation.
coagulants (co-AGG-you-lents). Chemicals that cause very fine particles to clump together into larger particles. This makes it easier to separate the solids from the water by settling, skimming, draining or filtering.
 See also: Soil, Pollution, Algae, Waste, Environment
  
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