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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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