What is Coagulant?
A chemical added to water to destabilise suspended colloidal particles so they can aggregate into larger settleable floc.
View Wastewater TreatmentCoagulant Explained
Coagulants neutralise the negative surface charge on colloidal particles. Common types include alum, polyaluminium chloride (PAC) and ferric chloride. Typical dose rates are 10-100 mg/L added before a rapid mixing stage.
Common Applications
- Water treatment plants
- Effluent treatment
- Sludge conditioning
- Turbidity removal
Important For
- Effective turbidity removal
- Flocculation performance
- Sludge volume minimisation
Selection Factors
Correct selection depends on the process objective and site conditions. For Coagulant, Premix usually reviews these points before recommending equipment:
- Water pH and alkalinity
- Turbidity level
- Coagulant type and dose
- Rapid mix energy
Why It Matters In Plant Operation
Coagulant affects process stability, chemical usage, equipment life and final output quality. A correctly selected solution helps reduce trial-and-error at site and supports more predictable daily operation.
Frequently Asked Questions
What is Coagulant?
A chemical added to water to destabilise suspended colloidal particles so they can aggregate into larger settleable floc.
Where is Coagulant commonly used?
It is commonly used in Water treatment plants, Effluent treatment, Sludge conditioning, Turbidity removal.
How does Premix select Coagulant?
Premix reviews Water pH and alkalinity, Turbidity level, Coagulant type and dose, Rapid mix energy along with the plant layout and maintenance requirement.