Pressure Sand Filter : Dust Eater Furnace Filter : Register Air Filter System

Pressure Sand Filter

sand filter


The oldest and most basic filtration process, which generally uses two grades of sand (coarse and fine) for turbidity removal or as a first stage roughing filter or pre-filter in more complex processing systems.


Sand filters are used for water purification. There are three main types; # rapid (gravity) sand filters # upflow sand filters # slow sand filters


(sand filters) Devices that remove some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed.


A filter used in water purification and consisting of layers of sand arranged with coarseness of texture increasing downward

pressure


The force exerted per unit area


the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure"


coerce: to cause to do through pressure or necessity, by physical, moral or intellectual means :"She forced him to take a job in the city"; "He squeezed her for information"


The continuous physical force exerted on or against an object by something in contact with it


The use of persuasion, influence, or intimidation to make someone do something


a force that compels; "the public brought pressure to bear on the government"