ion exchange
1
5.8
- noun
- /aɪən ɪksˈtʃeɪndʒ/
- Specialized
:
intercambio iónico
- Treated water is piped from the GAC units to an ion exchange unit (V-05) for final polishing to remove metals.
- ion exchange resin
- ion exchange system
- ion exchange beds
Examples
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Nanostructured filters used for ion exchange hold promise for removing contaminants.
Academic text (2004) -
We think that there are ion exchange columns of various kinds that could bind arsenic.
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GAC and ion exchange were required to consistently meet or exceed water quality requirements.
Academic text (1997) -
Wastes are typically treated by ion exchange before they are sent to an electrowinning unit.
Academic text (1994) -
Except for improved chemical efficiency, this treatment process has the same limitations as traditional fixed-bed ion exchange.
Academic text (1997) -
Continuous adsorption ion exchange allows reuse of rinse water. Disposing of waste can be very costly.
Academic text (1997) -
Concentrated fermented broth of pH 2 was loaded on highly acidic ion exchange to bind all lysine present in the broth.
Academic text (2015) -
In the present study's laboratory (Isolate, Akron, Ohio), HbA1 was measured in saline-incubated samples using ion exchange chromatography.
Academic text (1990) -
Ion exchange is often employed in ion exchange water purification to remove unwanted contaminants.
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The laboratory used ion exchange to filter out heavy metals from the solution.
Surface Forms
Morphology
The term is directly compositional: 'ion' (a charged atom or molecule) combined with 'exchange' (a swapping process) clearly denotes a process in which ions are swapped between phases. Although it is a technical term used in chemistry, its meaning follows straightforward word composition and is expressed similarly in many languages, so a learner who knows both constituents will grasp the concept.
Etymology
Ion exchange is easy to picture: imagine a bed of small beads that hold tiny charged particles called ions, and the beads exchange some of these particles with the water that flows past. Because the beads give some ions away and take others, the process 'swaps' unwanted ions out of the water and leaves it cleaner, which is why the name means 'swapping ions' between a liquid and a solid.