NSF Grade PDADMAC Cationic Polymer Coagulant Aid for Tap Water Clarification
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Product Overview
PDADMAC, also known as PolyDADMAC or Poly(dimethyl diallylammonium chloride), is a liquid cationic polymer with strong charge neutralization ability. It is widely used in drinking water treatment, wastewater treatment, sludge dewatering, industrial clarification, mining, paper-making, textile, and oil industry applications.
In tap water treatment plants, raw water from rivers, reservoirs, lakes, or groundwater sources may contain clay, silt, algae, organic matter, colloids, and fine suspended particles. These impurities are often negatively charged and difficult to remove by settling or filtration alone.
Bluwat NSF Grade PDADMAC Cationic Polymer works as a coagulant aid or primary coagulant to neutralize particle charges and promote larger floc formation. It helps improve tap water clarification, reduce turbidity, lower filter loading, and support more stable finished water quality.
For potable water applications, users should confirm the applicable NSF certification scope, certified grade, maximum use level, and local drinking water regulations before commercial dosing.
Application in Tap Water Clarification
PDADMAC can be used in municipal tap water treatment systems to improve the performance of coagulation, flocculation, sedimentation, and filtration.
Typical applications include:
- Tap water clarification
- Raw water turbidity removal
- Suspended solids reduction
- Colloid destabilization
- Coagulation aid with PAC, alum, or ferric salts
- Sedimentation tank performance improvement
- Filter loading reduction
- Surface water treatment
- Municipal drinking water treatment
- Algae and fine particle removal support
Key Benefits
NSF Grade
Bluwat PDADMAC can be supplied for tap water clarification projects requiring NSF grade cationic polymer solutions. Suitable for drinking water treatment within approved limits.
High Charge Density
Provides strong positive charge to neutralize negatively charged colloids, clay, silt, algae, and fine suspended particles in raw water.
Better Coagulation
Improves particle destabilization and helps inorganic coagulants form stronger and more settleable flocs.
Improved Turbidity
The product helps reduce raw water turbidity and improves clarified water quality before filtration.
Reduced Filter Load
Better floc formation can reduce solids carryover to filters, extending filter run time and reducing backwash frequency.
Effective at Low Dosage
Due to its high charge density, PDADMAC can achieve strong coagulation assistance at low dosage after jar testing.
Working Principle
PDADMAC improves tap water clarification mainly through charge neutralization and coagulation enhancement.
Recommended Treatment Process
Raw water intake → Raw water turbidity and pH check → PAC, alum, ferric salt, or PDADMAC primary dosing → PDADMAC coagulant aid dosing (if required) → Rapid mixing → Slow mixing → Sedimentation → Filtration → Disinfection → Finished tap water
Product Specifications
| Product Name | NSF Grade PDADMAC Cationic Polymer Coagulant Aid |
| Series | BLU DA Series PolyDADMAC Liquid Grade |
| Chemical Name | Poly(dimethyl diallylammonium chloride) |
| CAS Number | 26062-79-3 |
| Appearance | Colorless to light yellow liquid |
| Solid Content | 20–50% |
| pH Value | 3.0–7.0 |
| Specific Gravity | 1.01–1.10 (at 25°C) |
| Charge Type | Cationic |
| Viscosity | Below 200 cps to above 15000 cps (depending on grade) |
| Package | 25L, 200L, or 1000L IBC drum |
Available PDADMAC Liquid Grades
Application Method & Guidance
For tap water clarification, PDADMAC should be selected according to raw water turbidity, suspended solids, algae content, natural organic matter, temperature, pH value, and treatment process.
Dilution: Normally diluted to 0.5–5% concentration based on solid content before dosing.
Optimization: The optimum dosage should be confirmed by jar testing and plant trial. Control dosing point and mixing speed for uniform dispersion.
Use with Inorganic Coagulants
PDADMAC can be used as a coagulant aid together with PAC, alum, or ferric salts. While PDADMAC provides charge neutralization, inorganic salts provide hydroxide floc formation. Combined use improves floc quality and reduces total chemical cost.
Packaging and Storage
Available in 25L plastic drums, 200L plastic drums, and 1000L IBC drums. Store in original containers in a cool and dry place. Keep away from heat, flame, and direct sunlight.
Why Choose Bluwat NSF Grade PDADMAC?
- NSF grade PDADMAC option for tap water treatment
- High charge density cationic polymer (CAS No. 26062-79-3)
- Wide range of 20–50% liquid grades available
- Supports turbidity removal and raw water clarification
- Compatible with PAC, alum, or ferric salts
- Stable export supply and technical support for jar testing