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Sewage Characteristics


 

Sewage is characterized in terms of its physical, chemical and biological composition. The main physical, chemical and biological constituents of domestic sewage may be summarized as follows:

 

Physical Properties : Colour, Odor, Solids, Temperature
 

Chemical Constituents :

Organic - Carbohydrates, Fats, Oil, Grease, Proteins, and Surfactants
Inorganic - pH, Chlorides, Citrogen, Phosphorus, Sulfur
Gases - Hydrogen Culphide, Methane, Oxygen