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nanofiltration
This term describes a specialized technical process within the field of membrane science. It occupies a specific niche between reverse osmosis and ultrafiltration, characterized by its ability to selectively target multivalent ions—such as calcium and magnesium—while allowing monovalent ions like sodium to pass through.
In professional and academic contexts, the term is used as a technical descriptor for water purification and chemical separation. Because it refers to a specific scientific process or method, it is treated as an uncountable noun and does not typically take a plural form in standard technical writing.
Ý nghĩa
A membrane-based separation process that uses a semi-permeable membrane with pore sizes typically ranging from 1 to 10 nanometers to remove multivalent ions and small organic molecules from a liquid.
The plant utilizes nanofiltration to remove hardness and organic contaminants from the feedwater.