Coagulation (Coagulant)occurs as a result of the imbalance of forces/charges that prevent colloidal particles from coming together.
coagulantsThey are used to neutralize the charges of solid particles and colloidal structures in wastewater, to form aggregation by coming together and to be removed from the water by enabling them to settle.
both organic as well as inorganic coagulants are frequently used, usually in drinking water or wastewater. to flocculants used to connect.
What are the types of coagulants:
• Organic Coagulant
• Anionic Coagulant
• Plant Based Coagulant
• Heavy Metal Removers
• Fluoride Removers
• Oil Retaining Special Organic Coagulants
• Aluminum Remover Special Coagulants
• Chemical Deoxidizers (COD) Removers
• Suspended Solids (AKM) Removers
• Color Removers
• Dicyandiamide resin types
• Aluminum Sulphate
• Ferrous sulfate
• Ferric chloride
What are Organic Coagulants:
Does not depend on pH
No pH change
• No excessive sludge formation
•Low dosages, easily controllable
• Possible disadvantages; possibly high cost / not always as effective as inorganic coagulants
•Molecular weight is usually between 105 and 2 x 106
• Usually in the form of solutions in water
What are Inorganic Coagulants:
• Development of solids that facilitate their tendency to flocculation
Disadvantages: pH dependency/changes the pH of the system
•The generation of solids leading to greater water leaching increases the overall cost.
• Causes corrosion on some surfaces.