High Charge Density PolyDADMAC 20% Liquid Coagulant for Potable Water
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Product Overview
PolyDADMAC, also known as PDADMAC or Poly(dimethyldiallylammonium chloride), is a water-soluble cationic polymer with high charge density. It is widely used as a primary coagulant or coagulant aid in drinking water treatment, wastewater treatment, sludge dewatering, industrial clarification, paper-making, mining, textile, and oil industry applications.
In potable water treatment, raw water may contain clay, silt, algae, natural organic matter, colloids, and fine suspended particles. These impurities are usually negatively charged and difficult to remove by simple settling or filtration.
Bluwat PolyDADMAC 20% Liquid Coagulant provides strong cationic charge to neutralize these particles, helping them form larger flocs that can be removed by sedimentation, clarification, flotation, or filtration.
Compared with higher concentration grades, the 20% liquid series has lower viscosity and easier dispersion, making it suitable for dosing systems that require fast dilution, stable feeding, and uniform mixing.
Application in Potable Water Treatment
Bluwat PolyDADMAC 20% Liquid Coagulant can be used in potable water treatment systems to improve coagulation and clarification performance.
Typical applications include:
Key Benefits
High Charge Density
PolyDADMAC provides strong positive charge to neutralize negatively charged colloids, clay, silt, algae, and suspended solids in raw water.
20% Liquid Grade
The 20% liquid series has lower viscosity than higher solid content grades, making it easier to dilute, pump, and disperse.
Improved Turbidity
By improving particle destabilization and floc formation, PolyDADMAC helps reduce turbidity and improve clarified water quality.
Better Floc Formation
Supports the formation of larger and more settleable flocs, improving sedimentation and reducing solids carryover to filters.
Reduced Filter Load
Reduces suspended solids entering the filter system, helping improve filter operation and reduce backwash pressure.
Versatile Usage
Can be used as a primary coagulant or together with PAC, alum, ACH, ferric chloride, or ferric sulfate.
Working Principle
PolyDADMAC improves potable water clarification mainly through charge neutralization.
Recommended Treatment Process
Product Specifications
Available 20% PolyDADMAC Liquid Grades
DA 201 (Low Viscosity)
Viscosity: Below 200 cps. Ideal for fast dispersion and easy dilution.
DA 202 (Medium MW)
Viscosity: 200–700 cps. For general raw water clarification.
DA 203 (Balanced)
Viscosity: 700–1000 cps. Balanced performance for surface water.
DA 204 (High MW)
Viscosity: 1000–2000 cps. For high turbidity water requirements.
DA 205 (Very High MW)
Viscosity: 2000–3000 cps. For difficult raw water and strong floc structure.
Application & Selection
Application Method
When used alone, PolyDADMAC is normally diluted to 0.5–5% concentration based on solid content before dosing. The optimum dosage should be confirmed by jar testing and plant trial.
Product Selection Guidance
For low to medium turbidity, DA 201 to DA 203 are recommended. For high turbidity or algae-containing water, DA 204 or DA 205 may provide stronger floc formation.
Use with Inorganic Coagulants
PolyDADMAC 20% Liquid can be used alone or with PAC, alum, ACH, and ferric salts. Combined use may improve floc quality and optimize total chemical consumption.
Packaging and Storage
Available in 25L, 200L plastic drums, and 1000L IBC drums. Store in a cool and dry place away from direct sunlight.
Why Choose Bluwat PolyDADMAC 20% Liquid?
FAQ
Yes. It is used for clarification, turbidity removal, and coagulation improvement. Check local regulatory limits for drinking water use.
It has lower viscosity and easier handling, making it suitable for systems requiring fast dilution and stable feeding.
Yes, it can be used with PAC to improve floc formation and settling performance.
Dosage should be determined through jar testing and plant trials based on raw water conditions and treatment goals.