What is filtration?

  • (noun): The process whereby fluids pass through a filter or a filtering medium.
    See also — Additional definitions below


Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. Oversize solids in the fluid are retained, but the separation is not complete; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size and filter thickness). Filtration is also used to describe some biological processes, especially in water treatment and sewage treatment in which undesirable constituents are removed by absorption into a biological film grown on or in the filter medium.

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Some articles on filtration:

... organics and waste produced by livestock, foods and plant matter in the aquarium filtration system ... the net water volume of aquarium system (display tank, and sump), refugium, substrate, mechanical filtration, live rock, additional biological filtration, chemical filtration, chemical reactors ... Scavengers, which provide a biological benefit to the filtration system by consuming decomposing matter, are small bio-loads ...
Cannula Transfer - Filtration
... Filtration is most easily accomplished using a syringe filter ... PTFE filters tend to be most chemically resistant nylon filters are less so ...
Filtration - Examples
... Examples of filtration include The coffee filter to keep the coffee separate from the grounds ... Furnaces use filtration to prevent the furnace elements from fouling with particulates ... Pneumatic conveying systems often employ filtration to stop or slow the flow of material that is transported, through the use of a baghouse ...
Membrane Fouling - Fouling Control
... Even though membrane fouling is an inevitable phenomenon during membrane filtration, it can be minimised by strategies such as cleaning, appropriate membrane selection and choice of operating conditions ... For aqueous filtration, a hydrophilic membrane is preferred ... Operating conditions during membrane filtration are also vital, as they may affect fouling conditions during filtration ...
Clarification And Stabilization Of Wine - Clarifying Wine - Filtration
... particles and precipitating out as larger particles, filtration works by passing the wine through a filter medium that captures particles larger than the medium's holes ... Complete filtration may require a series of filtering through progressively finer filters ... they are to remain reliably stable in bottle, and this is usually now achieved by fine filtration ...

More definitions of "filtration":

  • (noun): The act of changing a fluid by passing it through a filter.