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adsorption

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absorption

absorption  

1 The penetration of one substance into or through another, such as the absorption of water into soil, or the uptake of water and nutrients by a cell or organism which absorbs them. Contrast ...
absorption

absorption  

1 (in chemistry) The take up of a gas by a solid or liquid, or the take up of a liquid by a solid. Absorption differs from adsorption in that the absorbed substance permeates the bulk of the ...
activated adsorption

activated adsorption  

Adsorption that involves an activation energy. This occurs in certain cases of chemisorption.
adsorb

adsorb  

To undergo or elicit adsorption.—adsorbable adj.; adsorbability n.
adsorbent

adsorbent  

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Overview Page
(ăd-sor-bĕnt)a substance that attracts other substances to its surface to form a film. Charcoal and kaolin are adsorbents.
ammonium fixation

ammonium fixation  

The adsorption of ammonium ions (NH+4) into inter-layer sites of the clay minerals, similar to locations of potassium in hydrous mica, which renders them unavailable to plants.
base saturation

base saturation  

The extent to which the exchange sites of the soil's adsorption complex are ‘saturated’ (or occupied) by exchangeable basic cations, or by cations other than hydrogen and aluminium, expressed as a ...
carbon adsorption

carbon adsorption  

A water treatment system that removes contaminants from groundwater or surface water by adsorption, by forcing the water through tanks that contain activated carbon, which attracts the contaminants.
chemisorption

chemisorption  

ora type of adsorption in which the forces involved are valence forces of the same kind as those operating in the formation of chemical compounds. Compare physisorption.
exchange capacity

exchange capacity  

The total ionic charge of the adsorption complex in the soil that is capable of adsorbing cations or anions.
exchangeable ions

exchangeable ions  

Charged ions that are adsorbed on to sites, oppositely charged, on the surface of the adsorption complex of the soil (mainly clay and humus colloids). Exchangeable ions can replace each other on this ...
hydrolysis

hydrolysis  

A reaction between a substance and water in which the substance is split into two or more products. At the points of cleavage the products react with the hydrogen or hydroxyl ions derived from water.
hygroscopic water

hygroscopic water  

Water absorbed from the atmosphere and held very tightly by the soil particles, so that it is unavailable to plants in amounts sufficient for them to survive. Compare capillary moisture.
immunoadsorption

immunoadsorption  

The use of an insoluble antigen (or antibody) to remove specifically unwanted antibodies (or antigens) from a mixture so as to make the antibody (or antigen) more specific. Compare adsorption (def. ...
physisorption

physisorption  

ororthe type of adsorption (def. 1) in which only van der Waals forces are involved and hence in which no significant changes occur in the electronic orbital patterns of the interacting substances. ...
pollution control

pollution control  

Any activities that are carried out in order to reduce or eliminate pollution.
sorption

sorption  

The action of soaking up (absorption) or attracting (adsorption) substances, which is used in many pollution control systems.

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