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Topic: Filtration

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Separation of mixtures

Fluid Dynamics

Electrophoresis

Decantation

Chromatography

Buchner funnel

Fractional freezing

Distillation

Passive transport

Chemical engineering

Pyrolysis

Mass transfer

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	Filtration
		Filtration is a technique used either to remove impurities from an organic solution or to isolate an organic solid.
		Hot gravity filtrations are no longer included in the routine procedures for the experiments in the organic chemistry teaching labs, they used to be used in the teaching labs to remove powdered Norite from a hot solution; since we switched to pelletized Norite, hot filtrations are not used.
		Vacuum filtration is used primarily to collect a desired solid, for instance, the collection of crystals in a recrystallization procedure.
	orgchem.colorado.edu /hndbksupport/filt/filtration.html (1026 words)

	Filtration - Wikipedia, the free encyclopedia
		In chemistry, alchemy and water treatment, filtration is the process of using a filter to mechanically separate a mixture.
		The simplest method of filtration is to pass a solution of a solid and fluid through a porous interface so that the solid is trapped, while the fluid passes through.
		Filtration is a more efficient method for the separation of mixtures than decantation, but is much more time consuming.
	en.wikipedia.org /wiki/Filtration (473 words)

	Encyclopedia :: encyclopedia : Filtration (abstract algebra) (Site not responding. Last check: )
		Filtrations are widely used in abstract algebra, and homological algebra (where they are related in an important way to spectral sequences).
		In measure theory, in particular in martingale theory and the theory of stochastic processes, a filtration is a sequence of sigma-algebras on a measurable space.
		A typical example is in mathematical finance, where a filtration represents the information available at each time t, and is more and more precise (the set of measurable events is staying the same or increasing) as information from the present becomes available.
	www.hallencyclopedia.com /topic/Filtration_(abstract_algebra).html (289 words)

	* Filtration - (Wine): Definition
		Filtration is another ancient practice, and early filters consisted of rough cloth-covered screens through which the wine was poured.
		Filtration - this is the process used to remove any remaining yeast or bacteria from a wine.
		Kisselguhr filtration system: This is a filtration system using diatomaceous earth as the filtering material, rather than cellulose, or in the past, before it was banned, asbestos.
	en.mimi.hu /wine/filtration.html (454 words)

	Scott Laboratories - Information Center - FAQ - Filtration
		Prior filtration with a depth filter is usually required to prevent clogging the surface of a membrane filter.
		Absolute filtration is useful for sterile filtration at the bottling line and at times when you require precise accuracy of filtration to limit risk.
		Depth filtration at sterile micron retentions may be desirable prior to sterile membrane filtration in order to protect the membrane cartridge.
	www.scottlab.com /info-center/faq-filtration.asp (1215 words)

	PlanetMath: filtration
		as elements of a larger set which are partially ordered by inclusion, then a filtration is simply a finite chain with respect to this partial ordering.
		It should be noted that in some contexts the word “filtration” may also be employed to describe an infinite chain.
		This is version 4 of filtration, born on 2002-01-05, modified 2005-04-03.
	planetmath.org /encyclopedia/Filtration.html (86 words)

	Comparing Functions and Types of Filtration for Your Aquarium
		Biological filtration occurs to some degree in all filters and in areas of the aquarium where these bacteria are present such as the water, substrate, and decorations.
		The efficiency of the chemical filtration is similar to the efficiency of the mechanical filtration and is going to depend on the percent of the water passing through the cartridge.
		The mechanical filtration of the wet/dry filter is accomplished by both the the pre-filter material, and the sponge that is located between the biological filter and the sump section.
	www.peteducation.com /article.cfm?cls=16&cat=1789&articleid=2614 (4193 words)

	Soil Filtration Lines (Site not responding. Last check: )
		Filtration soil areas may appear around baseboards, under doors, along the edges of stairs and possibly away from walls where plywood subflooring materials have been joined.
		Filtration soil may be fireplace or automobile emissions, residue from furniture polishes, fine sand or clay particles, cooking oils, or a host of other soils or a combination of soils.
		Filtration soil is a complex mix of chemical particulates such as carbon, sulfur, oxides and silica soil.
	www.baneclene.com /catalog/soilfiltration.html (524 words)

	GEL FILTRATION CHROMATOGRAPHY
		filtration sur gel (gel permeation chromatography), chromatographie sur gel perméable (gel chromatography, gel filtration, gel permeation chromatography), chromatographie par perméation de gel (gel chromatography, gel filtration, gel permeation chromatography).
		G.P.C. (exclusion chromatography, gel chromatography, gel filtration, gel permeation chromatography, molecular exclusion chromatography, molecular sieve chromatography, size exclusion chromatography), cromatografia por penetração de gel (exclusion chromatography, gel chromatography, gel filtration, gel permeation chromatography, molecular exclusion chromatography, molecular sieve chromatography, size exclusion chromatography).
		cromografía pg (exclusion chromatography, gel chromatography, gel filtration, gel permeation chromatography, molecular exclusion chromatography, molecular sieve chromatography, size exclusion chromatography), cromatografía de permeación sobre gel (exclusion chromatography, gel chromatography, gel filtration, gel permeation chromatography, molecular exclusion chromatography, molecular sieve chromatography, size exclusion chromatography).
	www.websters-online-dictionary.org /definition/english/ge/gel+filtration+chromatography.html (369 words)

	SIGGS Theory Model: Filtration
		filtration less than some value, then compatibility is less than some value.
		filtration is greater than some value, then stability is greater than some value.
		filtration is greater than some value or spillage is greater than some value.
	www.indiana.edu /~tedfrick/filtratn.html (307 words)

	Filtration
		Its efficiency is limited by the shape and compressibility of the particles, the viscosity of the liquid phase and the maximum allowable pressures.
		Large-scale simple filtration employs filter cloths and filter aids in a plate and frame press configuration, in rotary vacuum filters or centrifugal filters (Figure 2.3).
		Filtration of particles that are easily compressed leads to filter blockage and the failure of Equation 2.3 to describe the system.
	www.lsbu.ac.uk /biology/enztech/filtration.html (475 words)

	DWP: Alternative Filtration Technologies
		Once the filtration technology has met the State's performance criteria, it is regulated as a slow sand filter.
		The Surface Water Treatment Rule requires alternative filtration technologies to achieve "99.9 percent removal and/or inactivation of Giardia lamblia cysts..." 99.9 percent (3 log) of all cysts must be either filtered out or "inactivated" by the time water reaches the first customer.
		Filtration is a series of processes designed to remove particles from water.
	www.state.me.us /dhhs/eng/water/Templates/Rules/altfiltration.htm (3551 words)

	Algone.com - Aquarium Filtration for your Fish
		Filtration is the single most important requirement for a successful aquarium.
		Biological filtration is essential and needs to be adequately established.
		Another media for chemical filtration consists of zeolite (cat litter), which will delay or disrupt biological filtration, especially during the cycle.
	www.algone.com /aquarium_filtration.htm (1082 words)

	Filtration
		In biological filtration, certain bacteria, known as facultative bacteria, absorb ammonia, and turn nitrites into nitrates, which are not as dangerous.
		A good biological filtration system, teamed up with a mechanical filter (such as a skimmer) to remove solids before the water enters the biological filtration unit, is the most effective way to filter water.
		This filtration is accomplished by passing water through a tube that houses an ultraviolet light bulb.
	www.monetwatergardens.com /html/filtration.html (3191 words)

	Filtration (Site not responding. Last check: )
		While all forms of filtration can help with the success of a reef aquarium, biological filtration is the most essential to the life and health of our aquarium inhabitants.
		Chemical filtration is the process of using organic or synthetic compounds to remove impurities from the aquarium water.
		This type of filtration is normally used for short periods of time, and is best suited for quick removal of excess organic waste or toxins that may have been accidentally introduced into the water.
	www.reef-aquarium.net /resources/equipment/filtration.html (1914 words)

	Filtration
		Yet, this concept is theoretically the first step of filtration from a non-well source.
		Regardless of the sequence, loose sand media filtration is usually considered better at filtering organics from surface waters.
		This reason for this is to expose the water to oxygen before final filtration and for settling of particles.
	www.microirrigationforum.com /new/archives/filt.html (3160 words)

	A Guide to Pond Filtration
		Mechanical or physical filtration refers to the removal of particles of debris by means of passing the pond water through various filtration media.
		In smaller unlined ponds, you may not need to worry about biological filtration, since the exposure of the water to the soil allows the bacteria in the soil to act as the filter.
		The filtration system is probably the most important piece of mechanical equipment in your pond, so invest in a system that is easy to maintain and of the best quality.
	www.peteducation.com /article.cfm?articleid=2262 (1696 words)

	Koi Pond Filter Systems Biological, Mechanical and Chemical Filtration, Filters and Filter Media - Ultima II, DIY ...
		If a large biological filter is present chemical filtration should not be needed, but it is good to use while the biological filter is maturing or isn't big enough for the pond.
		Biological filtration turns ammonia into nitrate which is harmless to fish (unless at extremely high levels) but the disadvantage of this is that algae love nitrate and you get an algae bloom.
		Vegetable filtration, algaecides and magnets will all work on blanket weed, but UV filtration will not as the algae has to pass through the filter to be killed and blanket weed is attached to the pond walls.
	www.koivillage.com /filtration/index.html (654 words)

	Filtration module
		Filtration is a technique used to separate a solid from a solution.
		Gravity filtration is most useful when the solid is to be discarded and the filtrate (the liquid that flows through the filter paper) kept.
		Vacuum filtration is often faster than gravity filtration and is most useful if the solid must be kept or if a filtration must be done rapidly.
	www.uwplatt.edu /chemep/chem/chemscape/labdocs/catofp/mixpour/filter/page.htm (845 words)

	Air Filtration — A Clean Solution
		You can also achieve better air filtration with an electronic air purifier in which charged plates will cleanse the air and you’ll never have to buy replacement filters.
		You may have been thinking about air filtration, but you may be surprised at the benefits it will have for you and your family.
		Air filtration is a step towards better health for you and your family.
	www.1st-in-wellness.com /5485-air-filtration.html (304 words)

	Aquarium Filtration.
		This page explains the three stages of aquarium filtration with an emphasis on the third stage, bio-logical filtration, which is the most important type of aquarium filtration.
		(1) Mechanical filtration of water is done by passing the water through a screen, or a thin piece of sponge, or through a floss material, all of which remove pieces of debris from the water.
		(3) Biological filtration of water is done by certain types of bacteria that live on gravel, on the surface of glass, on ceramic ornaments, on plastic plants, on bio-balls, on floss, or best of all on BIO-Wheels.
	www.aquariumfish.net /information/filtration.htm (860 words)

	R.C. Harris Filtration Plant - Free net encyclopedia
		Image:RCHarris-cropped.JPG The R.C. Harris Filtration Plant in Toronto is both a crucial piece of infrastructure and an architectural acclaimed historic building.
		The filtration plant is located in the east of the city at the eastern end of Queen Street and at the foot of Victoria Park Avenue along the shore of Lake Ontario.
		The R.C. Harris Filtration Plant appears as the base of operations of the mysterious organisation "The Centre" in the television series The Pretender, as well as in dozens of (frequently low-budget) films (Half Baked, Undercover Brother) as a prison or headquarters.
	www.netipedia.com /index.php/R.C._Harris_Filtration_Plant (361 words)

	Aviation jet fuel filtration test facility
		Filtration is used during refueling to ensure clean fuel is being pumped into the aircraft.
		The Aviation Filtration Facility can simulate a wide range of conditions to duplicate the problem and determine the causes of the difficulty, and our staff can visit your site to assess conditions that may contribute to filter or component failure.
		Particulate measurements are obtained during the evaluations to determine the filtration performance of the test filters.
	www.swri.org /4org/d03/fuellube/api-ip/default.htm (466 words)

	Filtration Services and Products
		Filtration often goes hand in hand with clear brine fluids (CBFs) and TETRA has the expertise, equipment, and engineering and operations staff to handle all of our customers' filtration needs.
		Filtration equipment is operated continuously during all phases of completion operations as long as the CBF is in the hole with the objectives of:
		Our filtration engineers and operators understand the nature of the brines being filtered and are thoroughly trained and equipped to maintain safe operations.
	www.tetratec.com /Products_and_Services/Fluids_and_Filtration/Filtration/Filtration_Services_and_Products.aqf (244 words)

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