38-685: [REDACTED] Look up feed in Wiktionary, the free dictionary. Feed or The Feed may refer to: Animal foodstuffs [ edit ] Animal feed , food given to domestic animals in the course of animal husbandry Fodder , foodstuffs manufactured for animal consumption Forage , foodstuffs that animals gather themselves, such as by grazing Compound feed , foodstuffs that are blended from various raw materials and additives Arts, entertainment, and media [ edit ] Comedy [ edit ] A straight man who 'feeds' lines to
76-409: A Büchner funnel , filter paper of a smaller diameter than the funnel, Büchner flask , and rubber tubing to connect to a vacuum source. Centrifugal filtration is carried out by rapidly rotating the substance to be filtered. The more dense material is separated from the less dense matter by the horizontal rotation. Gravity filtration is the process of pouring the mixture from a higher location to
114-489: A broadcasting signal sent from one station to another, or to or from a central facility, intended for retransmission Science and technology [ edit ] The liquid input into a filtration is called the feed Speeds and feeds See also [ edit ] All pages with titles beginning with Feed All pages with titles containing Feed FEED (disambiguation) Feeder (disambiguation) Feeding (disambiguation) Topics referred to by
152-470: A bowl holding a porous filter media can be thought of as filters in which a centrifugal force several times stronger than gravity replaces gravitational force. A partial vacuum is typically provided to the container below the filter media when laboratory filtration is challenging to speed up the filtering process. Depending on the type of filter being used, the majority of industrial filtration operations employ pressure or vacuum to speed up filtering and reduce
190-464: A data format used for providing users with frequently updated content Feed (Facebook) , a web feed on the social networking site Television [ edit ] The Feed (Australian TV series) , an Australian news TV series The Feed (British TV series) , a 2019 psychological thriller drama television series The Feed , a recurring segment on the American TV series Attack of
228-406: A liquid, or simply to separate the solid from the liquid. There are many different methods of filtration; all aim to attain the separation of substances. Separation is achieved by some form of interaction between the substance or objects to be removed and the filter. The substance that is to pass through the filter must be a fluid , i.e. a liquid or gas . Methods of filtration vary depending on
266-438: A liquid. Only when a driving force is supplied will the fluid to be filtered be able to flow through the filter media. Gravity , centrifugation, applying pressure to the fluid above the filter, applying a vacuum below the filter, or a combination of these factors may all contribute to this force. In both straightforward laboratory filtrations and massive sand-bed filters, gravitational force alone may be utilized. Centrifuges with
304-483: A lower one. It is frequently accomplished via simple filtration, which involves placing filter paper in a glass funnel with the liquid passing through by gravity while the insoluble solid particles are caught by the filter paper. Filter cones, fluted filters, or filtering pipets can all be employed, depending on the amount of the substance at hand. Gravity filtration is in widespread everyday use, for example for straining cooking water from food, or removing contaminants from
342-505: Is a novel technology since natural biofilms are sluggishly developing. The use of biofilms in the biofiltration process allows for the attachment of desirable biomass and critical nutrients to immobilized support. So that water may be reused for various processes, advances in biofiltration methods assist in removing significant volumes of effluents from wastewater . Systems for biologically treating wastewater are crucial for enhancing both human health and water quality . Biofilm technology,
380-415: Is a physical separation process that separates solid matter and fluid from a mixture using a filter medium that has a complex structure through which only the fluid can pass. Solid particles that cannot pass through the filter medium are described as oversize and the fluid that passes through is called the filtrate . Oversize particles may form a filter cake on top of the filter and may also block
418-438: Is also used as a general term for macrophage in which organisms use a variety of means to filter small food particles from their environment. Examples range from the microscopic Vorticella up to the basking shark , one of the largest fishes, and the baleen whales , all of which are described as filter feeders . Filters may be used for the purpose of removing unwanted liquid from a solid residue, cleaning unwanted solids from
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#1732772205351456-454: Is composed primarily of silica . Also used are wood cellulose and other inert porous solids such as the cheaper and safer perlite . Activated carbon is often used in industrial applications that require changes in the filtrate's properties, such as altering colour or odour. These filter aids can be used in two different ways. They can be used as a precoat before the slurry is filtered. This will prevent gelatinous-type solids from plugging
494-523: Is different from Wikidata All article disambiguation pages All disambiguation pages feed Too Many Requests If you report this error to the Wikimedia System Administrators, please include the details below. Request from 172.68.168.133 via cp1102 cp1102, Varnish XID 542928539 Upstream caches: cp1102 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 05:36:45 GMT Filtration Filtration
532-402: Is mainly used to separate solids from a hot solution. This is done to prevent crystal formation in the filter funnel and other apparatus that come in contact with the solution. As a result, the apparatus and the solution used are heated to prevent the rapid decrease in temperature which in turn, would lead to the crystallisation of the solids in the funnel and hinder the filtration process. One of
570-416: Is the use of an ice bath to rapidly cool the solution to be crystallized rather than leaving it to cool slowly in the room atmosphere. This technique results in the formation of very small crystals as opposed to getting large crystals by cooling the solution at room temperature. Vacuum filtration technique is mostly preferred for small batches of solution to dry small crystals quickly. This method requires
608-528: The Rotifera and the Ectoprocta . Many aquatic arthropods are filter feeders. Some use rhythmical beating of abdominal limbs to create a water current to the mouth whilst the hairs on the legs trap any particle. Others such as some caddis flies spin fine webs in the water flow to trap particles. Many filtration processes include more than one filtration mechanism, and particulates are often removed from
646-638: The glomerulus selectively removes undesirable constituents such as urea , followed by selective reabsorption of many substances essential for the body to maintain homeostasis. The complete process is termed excretion by urination . Similar but often less complex solutions are deployed in all animals, even the protozoa , where the contractile vacuole provides a similar function. Biofilms are often complex communities of bacteria, phages, yeasts and often more complex organisms including protozoa , rotifers and annelids which form dynamic and complex, frequently gelatinous films on wet substrates. Such biofilms coat
684-629: The Show! Video games [ edit ] In video game terminology , to die repeatedly Computing and telecommunications [ edit ] Antenna feed , the components of an antenna which feed the radio waves to the rest of the antenna structure Data feed , a mechanism for users to receive updates from data sources Web feed feed URI scheme ( feed: ), a non-standard URI scheme designed to facilitate subscription to web feeds Relay (disambiguation) , any of several technologies for forwarding messages between stations Feed,
722-409: The amount of equipment needed. Filter media are the materials used to do the separation of materials. Two main types of filter media are employed in laboratories: Surface filters allow the solid particles, i.e. the residue, to be collected intact; depth filters do not. However, the depth filter is less prone to clogging due to the greater surface area where the particles can be trapped. Also, when
760-410: The biological component may be grown on a medium in the material being filtered. Removal of solids, emulsified components, organic chemicals and ions may be achieved by ingestion and digestion, adsorption or absorption. Because of the complexity of biological interactions, especially in multi-organism communities, it is often not possible to determine which processes are achieving the filtration result. At
798-399: The cake is discarded or where the precipitate can be chemically separated from the filter. Filtration is a more efficient method for the separation of mixtures than decantation but is much more time-consuming. If very small amounts of solution are involved, most of the solution may be soaked up by the filter medium. An alternative to filtration is centrifugation . Instead of filtering
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#1732772205351836-571: The filter lattice, preventing the fluid phase from crossing the filter, known as blinding . The size of the largest particles that can successfully pass through a filter is called the effective pore size of that filter. The separation of solid and fluid is imperfect; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size, filter thickness and biological activity). Filtration occurs both in nature and in engineered systems; there are biological , geological , and industrial forms. In everyday usage
874-402: The filter medium and also give a clearer filtrate. They can also be added to the slurry before filtration. This increases the porosity of the cake and reduces the resistance of the cake during filtration. In a rotary filter, the filter aid may be applied as a precoat; subsequently, thin slices of this layer are sliced off with the cake. The use of filter aids is usually limited to cases where
912-449: The filtration process faster, though this may lead to clogging or the passage of fine particles. Alternatively, the liquid may flow through the filter by the force exerted by a pump , a method commonly used in industry when a reduced filtration time is important. In this case, the filter need not be mounted vertically. Certain filter aids may be used to aid filtration. These are often incompressible diatomaceous earth , or kieselguhr, which
950-466: The fluid first to prevent clogging of downstream elements. Particulate filtration includes: Adsorption filtration removes contaminants by adsorption of the contaminant by the filter medium. This requires intimate contact between the filter medium and the filtrate, and takes time for diffusion to bring the contaminant into direct contact with the medium while passing through it, referred to as dwell time . Slower flow also reduces pressure drop across
988-428: The formation of biofilms on various filter media, and other factors have an impact on the growth structure and function of these biofilms. To conduct a thorough investigation of the composition, diversity, and dynamics of biofilms, it also takes on a variety of traditional and contemporary molecular approaches. Filter feeders are organisms that obtain their food by filtering their, generally aquatic, environment. Many of
1026-477: The funny man in a comic dialogue Film [ edit ] Feed (1992 film) , a 1992 film directed by Kevin Rafferty Feed (2005 film) , a 2005 film directed by Brett Leonard Feed (2017 film) , a 2017 film directed by Tommy Bertelsen Literature [ edit ] Feed (Anderson novel) , a 2002 novel by M. T. Anderson Feed (Grant novel) , a 2010 novel by Seanan McGuire under
1064-424: The location of the targeted material, i.e. whether it is dissolved in the fluid phase or suspended as a solid. There are several laboratory filtration techniques depending on the desired outcome namely, hot, cold and vacuum filtration . Some of the major purposes of obtaining the desired outcome are, for the removal of impurities from a mixture or, for the isolation of solids from a mixture. Hot filtration method
1102-439: The mixture of solid and liquid particles, the mixture is centrifuged to force the (usually) denser solid to the bottom, where it often forms a firm cake . The liquid above can then be decanted. This method is especially useful for separating solids that do not filter well, such as gelatinous or fine particles. These solids can clog or pass through the filter, respectively. Biological filtration may take place inside an organism, or
1140-442: The molecular level, it may often be by individual catalytic enzyme actions within an individual organism. The waste products of some organisms may subsequently broken down by other organisms to extract as much energy as possible and in so doing reduce complex organic molecules to very simple inorganic species such as water, carbon dioxide and nitrogen. In mammals, reptiles, and birds, the kidneys function by renal filtration whereby
1178-446: The most important measures to prevent the formation of crystals in the funnel and to undergo effective hot filtration is the use stemless filter funnel. Due to the absence of a stem in the filter funnel, there is a decrease in the surface area of contact between the solution and the stem of the filter funnel, hence preventing re-crystallization of solid in the funnel, and adversely affecting the filtration process. Cold filtration method
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1216-482: The name "Mira Grant" Music [ edit ] "Feed Us", 2007 song by Serj Tankian from Elect the Dead "Feed", 2022 song by Demi Lovato from Holy Fvck Online media [ edit ] Feed Magazine , one of the earliest e-zines that relied entirely on its original online content "The Feed", video game news and blogs, published by G4 Media, an NBCUniversal subsidiary Web feed or news feed,
1254-410: The protozoa are filter feeders using a range of adaptations including rigid spikes of protoplasm held in the water flow as in the suctoria to various arrangements of beating cillia to direct particles to the mouth including organisms such as Vorticella which have a complex ring of cilia which create a vortex in the flow drafting particles into the oral cavity. Similar feeding techniques are used by
1292-479: The rocks of most rivers and the sea and they provide the key filtration capability of the Schmutzdecke on the surface of slow sand filters and the film on the filter media of trickling filters which are used to create potable water and treat sewage respectively. An example of a biofilm is a biological slime, which may be found in lakes, rivers, rocks, etc. The utilization of single- or dual-species biofilms
1330-405: The same term [REDACTED] This disambiguation page lists articles associated with the title Feed . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Feed&oldid=1250486817 " Category : Disambiguation pages Hidden categories: Short description
1368-414: The screen without interrupting system flow. Fluids flow through a filter due to a pressure difference—fluid flows from the high-pressure side to the low-pressure side of the filter. The simplest method to achieve this is by gravity which can be seen in the coffeemaker example. In the laboratory, pressure in the form of compressed air on the feed side (or vacuum on the filtrate side) may be applied to make
1406-424: The solid particles are very fine, it is often cheaper and easier to discard the contaminated granules than to clean the solid sieve. Filter media can be cleaned by rinsing with solvents or detergents or backwashing. Alternatively, in engineering applications, such as swimming pool water treatment plants, they may be cleaned by backwashing . Self-cleaning screen filters utilize point-of-suction backwashing to clean
1444-421: The verb "strain" is more often used; for example, using a colander to drain cooking water from cooked pasta . Filtration is also used to describe biological and physical systems that not only separate solids from a fluid stream but also remove chemical species and biological organisms by entrainment , phagocytosis , adsorption and absorption . Examples include slow sand filters and trickling filters . It
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