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The great one of treatment technique is coagulation , the most important type is electrocoagulation
Inorganic coagulants:
1- The aluminum coagulants include ( aluminum sulfate , aluminum chloride and sodium Aluminate )
2- The iron coagulants include ( ferric sulfate, ferrous sulfate, ferric chloride and ferric chloride sulfate ) .
primary coagulant and coagulant aids
1-Chemical coagulation
2- Natural coagulation
3- Electrocoagulation
Aluminum and iron salts are the most commonly used inorganic coagulants in the wastewater treatment settings. These include based aluminum metals (aluminum chloride, aluminum sulfate, sodium aluminate) and iron based metals (ferrous sulfate, ferric sulfate, ferric chloride)
Electro-coagulation
Chemical cougulation
1- Electrocoagulation (In this process, charged ionic species—metals or otherwise—are removed from wastewater by allowing it to react with an ion having an opposite charge, or with floc of metallic hydroxides generated within the effluent.)
