electrodialysis
RareHighly Technical/Scientific
Definition
Meaning
A process that uses an electric field to separate ions or charged particles from a solution through selective membranes.
A specialized physicochemical separation technique, primarily used for desalination, purification, or concentration of solutions in industrial, laboratory, or medical settings (e.g., renal dialysis).
Linguistics
Semantic Notes
The term is a compound of 'electro-' (relating to electricity) and 'dialysis' (separation). It denotes a specific, instrument-driven process, not a general concept of separation.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. Pronunciation may vary slightly (see IPA).
Connotations
Identical technical connotations in both varieties.
Frequency
Equally rare and specialized in both dialects, confined to technical fields.
Vocabulary
Collocations
Grammar
Valency Patterns
Electrodialysis is used to [VERB] [NOUN] (e.g., purify water).The [NOUN] undergoes electrodialysis.They performed electrodialysis on the sample.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None. The term is purely technical.”
Usage
Context Usage
Business
Rare; only in specific industries like water treatment tech or chemical manufacturing.
Academic
Primary context. Used in chemistry, chemical engineering, environmental science, and medical journals.
Everyday
Virtually never used.
Technical
The standard context. Precise term for the described separation process.
Examples
By Part of Speech
verb
British English
- The team will electrodialyse the solution to remove the salts.
- The sample was electrodialysed overnight.
American English
- They plan to electrodialyze the wastewater stream.
- The concentrated product was obtained by electrodialyzing the mixture.
adverb
British English
- The ions were separated electrodialytically.
- The solution was treated electrodialytically.
American English
- The salts were removed electrodialytically.
- The system operates electrodialytically.
adjective
British English
- The electrodialytic process proved more efficient.
- An electrodialytic cell was constructed.
American English
- The electrodialytic purification step is crucial.
- They studied electrodialytic membrane performance.
Examples
By CEFR Level
- (Too technical for A2. Use simpler paraphrase) Scientists have a machine to clean water.
- Electrodialysis is a method for taking salt out of water using electricity and special filters.
- The factory uses electrodialysis to purify process water, reducing its mineral content efficiently.
- In the novel continuous electrodialysis system, alternating anion- and cation-exchange membranes create concentrated and dilute streams.
Learning
Memory Aids
Mnemonic
Think: 'ELECTRICity' helps 'DIALYSIS' (separation) happen faster and more selectively.
Conceptual Metaphor
A molecular 'sorting office' where an electric field acts as the postman directing ions to different rooms (membranes).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation into components like 'электро-диализ' without confirming standard term 'электродиализ'.
- Do not confuse with general 'dialysis' (диализ), which in medical contexts usually refers to haemodialysis without the 'electro-' prefix.
Common Mistakes
- Misspelling as 'electro-dialysis' (hyphen often omitted in modern usage).
- Confusing it with 'electrolysis' (which involves chemical decomposition, not selective separation).
- Using it as a general synonym for 'filtration'.
Practice
Quiz
Electrodialysis is primarily a process for:
FAQ
Frequently Asked Questions
No. Both are used for desalination, but reverse osmosis uses pressure to force water through a semi-permeable membrane, while electrodialysis uses an electric field to move ions through selective ion-exchange membranes.
No. It is highly effective for removing dissolved ionic species (salts) but does not remove uncharged molecules, viruses, or bacteria effectively.
Yes, though highly technical. It means to subject a solution to the process of electrodialysis. The spelling varies slightly between British ('electrodialyse') and American ('electrodialyze') English.
Directly, very rarely. Indirectly, it might be used in producing ultra-pure water for laboratories, certain food processing applications (e.g., deacidifying fruit juice), or in some specialised medical equipment.