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What are the raw water, softened water, desalinated water, pure water and ultrapure water that we often talk about?

Released Date: Aug 24,2015 Article Source: Yuanlai Water Treatment
Raw water refers to untreated water, that is, water before it enters each process of water treatment. Softened water refers to water whose hardness (mainly referring to Ca2+ and Mg2+ in water) has been reduced to a certain extent. During the softening process of water, only the hardness is reduced, while the total salt content remains unchanged. Desalinated water refers to water from which the salt has been removed or reduced to a certain extent, with a content of no more than 1 to 5mg/L, or an electrical conductivity of 1.0 to 10.0μS/cm. Pure water refers to water from which strong and weak electrolytes (such as SiO2, CO2, etc.) have been removed or reduced to a certain extent, with a salt content of less than 1mg/L or an electrical conductivity of 0.1 to 1.0μS/cm. Ultra-pure water refers to water where almost all conductive media have been removed, and at the same time, gases, colloids, and organic substances (including) that do not dissociate have also been removed to a very low extent. The salt content in ultrapure water

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Raw water

It refers to untreated water, that is, water before entering each process of water treatment.

Softened water

It refers to the hardness (mainly in water)Ca2+,Mg2+Reduce the water to a certain extent. During the softening process of water, only the hardness is reduced, while the total salt content remains unchanged.

Desalinated water

It refers to water from which the salt has been removed or reduced to a certain extent, and its content is not1~5mg/LOr the electrical conductivity is1.0~10.0μS/cm.

Pure water

It refers to combining strong electrolytes and weak electrolytesSiO2,CO2Water that has been removed or reduced to a certain extent and whose salt content is less than1mg/LOr the electrical conductivity is0.1~1.0μS/cm.

Ultra-pure water

It refers to the removal of almost all conductive media, while gases, colloids and organic substances (including) that do not dissociate are also removed to a very low extent. The salt content of ultrapure water is less than0.1mg/LThe electrical conductivity is not0.1~0.055μS/cmResistivity25"Celsius"℃)>10MΩ·cmThe ideal conductivity of pure waterfor0.055μS/cmResistivity25℃"For18.3MΩ·cm.

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