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Water Quality General Information and Definitions

[Water Impurities] [Charged & Non-Charged] [The Impact of Reverse Osmosis] [Impurities and Solubility] [Top of Page]


Water Impurities

[Water Impurities] [Charged & Non-Charged] [The Impact of Reverse Osmosis] [Impurities and Solubility] [Top of Page]


Charged & Non-Charged

CHARGED

  • Sodium

  • Calcium

  • Nitrate

NOT-CHARGED

  • Bacteria

  • Silica

  • Oil

[Water Impurities] [Charged & Non-Charged] [The Impact of Reverse Osmosis] [Impurities and Solubility] [Top of Page]


 The Impact of Reverse Osmosis

Before RO

TDS Present State-of-Art
  40,000
|
 
  30,000
|

Reverse Osmosis (Seawater)
  | Evaporators
  20,000
|
 
Evaporators
 
|
10,000
 
  9,000
|
 
  8,000
|
 
  7,000
|
Reverse Osmosis (Brackish)
  6,000
|
 
 
5,000
|
 

Electrodialysis
4,000
|
 
Evaporators
 
3,000
|
 
  2,000
|
Reverse Osmosis (Brackish)
Electrodialysis
 
1,000
|
 
Demineralizers |
|

  | Demineralizers

 

[Water Impurities] [Charged & Non-Charged] [The Impact of Reverse Osmosis] [Impurities and Solubility] [Top of Page]


 

Impurities and Solubility

  • Sodium Compounds:  Very Soluble (Sodium Chloride)

  • Calcium Compounds:  Very Low Solubility  
    Examples:  Hardness, Calcium Fluoride

  • Silica:  Low Solubility

  • Strontium Sulfate:  Low Solubility

  • Barium Sulfate:  Low Solubility

[Water Impurities] [Charged & Non-Charged] [The Impact of Reverse Osmosis] [Impurities and Solubility] [Top of Page]

 
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All Content on this site is  intended for informational purposes for experienced water treatment professionals only.  Applied Membranes, Inc. does not assume any liability for any damages caused by the misapplication or misinterpretation of any of the information contained on this website.
Applied Membranes, Inc. 2007