The process of removing natural gas liquids from a stream of natural gas by passing the natural gas through granular solids which have a natural attraction to the liquids to be removed from the stream.
The binding of a pesticide to surfaces (e.g., soil particles) by physical or chemical action.
The extraction from a mixture of gases or liquids of one or more components, by surface adhesion to that material with which the gases or liquids come in contact. The adsorption or extraction process does not cause and is not accompanied by either a physical or chemical change in the sorbent material. Compare ABSORPTION.
The natural phenomenon of a gas, vapour, or liquid being attracted to, and held on, the surface of a solid. To some extent, adsorption takes place on any solid surface, but certain materials have sufficient adsorbent capacity because of the finely divided material to make them useful in such industrial applications as the purification and separation of gases and liquids.
retention in which the solute sticks to the surface of an adsorbent.
Binding of a gas or a solute to the surface of a solid.
Molecules of gas, liquid, or dissolved solids that adhere or "stick" to the surfaces they come in contact with. Some chemicals adsorb strongly to soil particles. This differs from absorb: "to take up or make part of the existing whole," like a sponge absorbs (sucks up) water.
The property of a solid substance to attract and hold other molecules to its surface.
The process whereby small particles (e.g. clay) attract and hold ionic constituents.
The process whereby chemicals (either natural or pollutant) attach to the surface of particles. For example, heavy metals commonly adsorb to clay particles and to natural organic particles.
The process by which atoms, molecules or ions are taken up from the soil solution or atmosphere and retained on the surfaces of solids by chemical or physical binding.
The process by which a herbicide associates with a surface, e.g., a soil colloidal surface.
Adsorption (or sorption) is the transfer of solute from the fluid onto the solid. Solute adsorbed onto the solid is called adsorbate. SUTRA offers a choice of three equilibrium adsorption models: linear, Freundlich, and Langmuir. See Section 2.4 of the SUTRA documentation for details.
refers to the condensation of gas or vapor on the surface of a solid.
The process by which a gas, vapor, dissolved material or very small particle adheres to the surface of a solid due to chemical or physical forces.
Adsorption, which is often confused with absorption, refers to the adhering of molecules of gases and liquids to the surfaces of porous solids. Adsorption is a surface phenomenon; absorption is an intermingling or interpenetration of two substances.
fixing of a vapour phase in a solid medium
Adsorptio Adsorption Adherence of liquids, gases or aggregated particles to a surface. Opposite effect is desorption.
The increased concentration of molecules or ions at a surface, including exchangeable cations and anions on soil particles.
A surface phenomena in which a solute (soluble material) concentrates or collects at a surface (the adsorbent).
The attachment, through physical or chemical bonding, of gas molecules to the coal surface. The adsorbed gas molecules are trapped within the coal, the stability of which is strongly affected by changes in temperature and pressure.
the process of attraction to a surface
The adherence of atoms, ions or molecules of a gas or liquid to the surface of another substance. Finely divided or microporous materials having a large active surface area are strong adsorbents. Examples include activated carbon, activated alumina and silica gel.
The gathering of a gas, liquid, or dissolved substance on the surface or interface zone of another material.
The removal of gasses or liquids in specialized filters whereby the gas or liquid adheres as a thin film to the surface of a solid substance.
the accumulation of molecules of a gas to form a thin film on the surface of a solid
Refers to the surface retention or adhesion of a very thin layer of water molecules to the surfaces of a material (such as insulation fibers) with which they are in contact. Also see Sorption.
Process in which a substance (gas or liquid) is held in the surface of a solid. In the adsorption process it is verified the formation of a layer of gas or liquid on the surface of a solid. The adsorption can be chemical or physic. In the chemical adsorption, the adsorbed substance reacts with the adsorbent surface having the formation of chemical bounds. On the other hand, in physical adsorption there isn't the formation of chemical bounds. The molecules are adsorbed through Van der Walls forces.
The process by which chemicals are held on the surface of a mineral or soil particle.
Separation of liquids, gases, colloids or suspended matter from a medium by adherence to the surface or pores of a solid.
The chemical process in which filter media encourage water contaminants to separate from the water molecules and bond to the filter media.
Adsorption is a chemical process in which an ionic filter media is use. The filter attracts water contaminants and encourages these contaminants to break their bond with the water molecules.
The attachment of compounds or ions to a surface particles. Nutrients in solution (ions) carrying a positive charge become attached to (adsorbed by) negatively charged soil particles.
Nonspecific adherence of substances in solution or suspension to cells or other particulate matter.
If any compound, solid, liquid or gas, is loosely held by weak attraction to the surface of a solid it is said to have undergone adsorption. This process is much weaker and less permanent than absorption.
The attachment of compounds to the chemically active groups on the surface and in the pores of an ion exchange resin.
the physical process occurring when one substance adheres to the surface of another. Adsorption is a physical process which occurs without chemical reaction.
The physical adherence of solids or chemicals to another surface: a surface active phenomenon as opposed to an absorption in which a liquid is taken up by a solid medium, or a gas dissolves in liquid.
The adhesion, in an extremely thin layer of molecules, of one material to the surface of another. Engelhard adsorbents and absorbents selectively attract materials that our customers want isolated - for example, impurities in vegetable and motor oils.
The process whereby vapor phase compounds in the gas stream pass through a bed or layer of highly porous material (adsorbent). The vapor phase compounds diffuse to the surface of the adsorbent and are retained due to weak attractive forces.
The process whereby a layer of molecules, atoms or ions attach to the surface of a red blood cells.
The process in which the molecules of a gas or liquid adhere to the outer surface of another solid or liquid. Adsorption may retard the diffusion of contaminants.
Transfer of gas or vapor molecules from the surrounding gas to a solid surface.1
Attachment of the molecules of a gas or liquid to the surface of another substance (normally a solid).
The attraction exhibited by the surface of a solid for a liquid or a gas when they are in contact.
Attachment of gas molecules in solution to the surface of solid materials with which they come in contact.
process by which molecules become attached to the surface
The adhesion of one substance to the surface of another.
the binding of olecules or particles to a surface.
Adhesion of chemicals out of water on to a surface.
The process by which gases adhere to solid surfaces. The strength of the bond depends on the van der Waal forces between the gas and the solid.
the binding of molecules of a substance to the surface of another substance; for example, odor-causing molecules adsorb on the surface of carbon particles; compare with absorption.
molecules of gases form a thin film on the surface of a solid or liquid.
The process by which chemicals are held on a solid surface, especially soil particles.
The act of one material adhering to another. In the case of clay and water, water is held on the surface of clay by a loose bonding force.
The surface retention of solid, liquid or gas molecules, atoms or ions by a solid or liquid. The adsorbed material is held in place by Van der Waals and other weak inter-molecular forces and is not readily displaced.
The adhesion of a thin film of liquid or gases to the surface of a solid substance.
The condensation of gasses, liquids, or dissolved substances on the surfaces of solids.
Adherence of molecules in solution or suspension to cells or other molecules — or to the walls of a vial or drug delivery device.
the accumulation or concentration of a substance on a surface. There are two types; physical adsorption where molecules are attracted and become physically attached to a surface by intermolecular forces of attraction and chemical adsorption in which molecules, atoms or ions are attached to a surface by chemical bonds. Flocculant adsorption to mineral particles is a combination of both types.
The process by which filter media attracts unwanted molecules to its surface via a chemical charge. Odors from freezers and refrigerators are adsorbed to baking soda.
The retention of gas molecules on a solid surface known as the adsorbent. Adsorption is used either to separate gases (e.g., nitrogen from oxygen) or purify them. For example, water, CO2 or hydrocarbons may be removed from air gas before separation by a cryogenic air separation unit.
The process in which matter adheres to the surface of an adsorbent
The concentration of a substance on the surface of another substance, which is usually solid.
The surface retention of solid, liquid, or gas molecules, atoms, or ions by a solid or liquid. Compare with absorption..
the process where chemicals in a gas or liquid are attracted to a solid, such as activated carbon, and held in a thin layer at the surface of the solid.
The adhesion of molecules to the surface of solid bodies or liquids with which they are in contact.
Adsorption is a surface phenomenon that some products exhibit, whereby they form a physicochemical bond with substances. Not to be confused with absorption.
Not to be confused with absorption, adsorption is the build up of a molecule at a surface. Adsorption generally occurs because different parts of a molecule have an affinity for the two different phases on either side of the interface. Syn. Physical adsorption
A weak surface bonding of molecules in a fluid phase (gas) through physical or weak chemical attraction. A good adsorbents is characterized by a high surface-to-volume ratio (e.g. activated carbon)
The attachment of nutrient ions to the surface of clay and organic colloids within the soil.
Adsorption - The adherence of gas molecules, ions or solutions to the surface of solids.
Retention (of water vapor) as a surface layer on a material ..technical glossary, technical terms, glossary, technical glossary
Physical adhesion of vapor or dissolved matter to the surface of a solid. The term also refers to a method of treating wastes in which activated carbon removes organic matter from wastewater. Unless it is certain that adsorption is occurring, as opposed to absorption, the term sorption should be used.
A separation process for removing impurities based on the fact that certain highly porous materials fix certain types of molecules onto their surface.
The clinging of molecules to the surface of particles; the process by which activated carbon removes contaminants from water.
the adherence of a particle onto another, usually as a result of attraction due to opposite electrical charges
is the enrichment or agglomeration of particles on a surface or interface
The process of an agent sticking to or becoming chemically attached to a surface.
adsorb; adsorbed. Compare with absorption and sorption. Adsorption is collection of a substance on the surface of a solid or a liquid. For example, gases that make water taste bad are strongly adsorbed on charcoal granules in water filters.
migration of a material onto the surface of a solid so that part or all of the surface is covered with a layer of the material that is intimately joined to it and will resist removalaging oven - an air oven, usually laboratory scale, that is used to expose rubber test specimens to elevated temperatures in an accelerated test of the compound's resistance to normal aging
The process by which molecules, colloids or particles adhere to the surfaces by physical action but without any chemical reaction.
Assimilation of molecules or other substances onto the physical structure of a liquid or solid without chemical reaction.
Build up of a molecule at a surface. Not to be confused with absorption. Adsorption generally occurs because different parts of a molecule have an affinity for the two different phases on either side of the interface.
The process of interaction between the solute and the surface of an adsorbent. The forces involved can be strong such as hydrogen bonds, or weak such as van der Waals forces. For silica gel, the silanol group is the driving force for adsorption, and any solute functional group that can interact with this group can be retained by liquid-solid chromatography on silica.
The formation of a layer of gas, liquid or solid onto the surface of another solid. The layer is held in place by either chemical attraction (Chemisorption) or by weak van der Waal forces (Physisorption). Less commonly a phase may be adsorbed onto a liquid.
The attraction of ions or compounds to the surface of a solid
Attraction and holding of one substance on the surface of another; this often involves the attraction of molecules in gases and liquids to the surface of a solid.
The attachment of the molecules of a liquid or gaseous substance to the surface of a solid.
Adsorption: an atom or Molecule of a gas or liquid adds on inner surface of the adsorbent. “Absorption”, by contrast, means the bedding of an atom or molecule into the free volume of a solid body of fluid. The opposite, the delivery of atoms/molecules, is called “desorption”.
Bonding or adhering of ions or compounds to the surface of soil particles or plant parts.
A process in which molecules are attracted to and retained on a surface (compare with absorption). In water treatment, the large surface area of activated carbon is used to remove low concentrations of contaminants.
The process by which a desiccant with a highly porous surface attracts and removes the moisture from compressed air. The desiccant is capable of being regenerated.
Adhesion of the molecules of gases, liquids, or dissolved substances to a solid surface, resulting in relatively high concentration of the molecules at the place of contact; e.g. the plating out of an anti-wear additive on metal surfaces.
Gas or vapor bonding on, or "sticking" to, a solid or liquid surface.
the accumulation of a thin layer of molecules of gas or liquid on a solid surface.
The condensation of gases, liquids or dissolved substances on the surface of solids.
The attachment of a particle, ion or molecule to a surface. Calcium is adsorbed onto the surface of clay or humus.
The retention of atoms, ions, or molecules onto the surface of another substance.
A type of adhesion that occurs at the surface of a solid or liquid in contact with another medium, thus allowing an increased number of molecules of the gas or liquid to become attached to the surface of the solid at the point of contact.
The adherence of one material to the surface of another via electro-magnetic forces, e.g. dust to a television screen.
The process by which the surface of a material binds with another material and holds it. For instance, bentonite contains charged particles that adsorb herbicides and other toxic substances.
Adhesion of molecules of gases, liquids, or dissolved substances to the surface of a solid or liquid, forming a molecular or atomic film. In biomed applications, this undesired affect is also called "fouling." It is different from absorption, where a substance diffuses into a liquid or solid to form a "solution."
The concentration of molecules of one or more specific elements or compounds at a phase boundary, usually at a solid surface bounding a liquid or gaseous medium containing the specific element or compound.
Is the process by which one substance adheres to the surface of another substance in a very thin layer.
The adhesion in an extremely thin layer, of the molecules of gases of dissolved substances or liquids, to the surface of solid bodies with which they are in contact.
Collecting a liquid on the surface of a solid (usually activated carbon).
The condensation of gas or vapor on a surface.
Adherence of a substance to a surface.
A measure of the degree to which a substance binds to particles.
The retention of gaseous or dissolved substances on the surface of a solid (adsorbent). Adsorption may be used to remove or recover substances from gases or liquids.
The process by which filter media attracts unwanted molecules to its surface via a chemical charge. Adventitious root A root which develops from the node of a stem or similar organ, such as a Rhizome, Stolan or runner.
To take in or drink in, as a sponge imbibes water. Ability to adhere gases, liquids and other matter to a surface or exposed pores.
Physical process involving adherence of particles to one another, at the microscopic level. Important in fining and other processes.
The adhesion of a thin film of liquid or gas onto a solid substance. The solid does not chemically combine with the adsorbed substance. See sorption; compare absorption.
Retention of gas, liquid, solid or a dissolved substance on a surface due to positive interaction (attraction) between the surface and the molecules of the adsorbed material. The interactive forces can be electrostatic (coulombic) or nonelectrostatic (dipole-dipole and hydrophobic). Adsorption to a membrane or filter device can occur in a specific manner (affinity) or nonspecifically.
The action, associated with the surface adherence, of a material in extracting one or more substances present in an atmosphere or mixture of gases and liquids, unaccompanied by physical or chemical change. Commercial adsorbent materials have enormous internal surfaces.
The bonding, usually temporary, of ions or compounds to the surfaces of a solid, such as a calcium ion held on the surface of a clay crystal or a humus particle, where it may be absorbed by a plant root. See Absorption
The adhesion of a substance to the surface of a solid or liquid.
The adhesion of the molecules of gases, dissolved substances, or liquids in more or less concentrated form to the surfaces of solids or liquids with which they are in contact.
The process by which a gas, vapor, dissolved material or a minute particle adheres to the surface of a solid.
Removal of a pollutant from air or water by collecting the pollutant on the surface of a solid material; e.g., an advanced method of treating waste in which activated carbon removes organic matter from waste-water.
Attraction and adherence of a substance to the surface of another substance.
The physical process occurring when liquids, gases, or suspended matter adhere to the surfaces of, or in the pores of, an adsorbent medium.
The collecting of liquid on a surface by condensation.
The retention of gases, vapors or fluids on the surfaces of solid bodies, e.g. lubricants on the surface of contacting bodies.
Holding of gases, vapours or fluids on the surface of solid bodies e.g. lubricants on the surface of friction elements..
The degree to which a surface allows liquid penetration.
The process by which a pesticide or other chemical is held or bound to a surface by physical or chemical attraction.
Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or, more rarely, a liquid (adsorbent), forming a molecular or atomic film (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid or solid to form a solution. The term sorption encompasses both processes, while desorption is the reverse process.