PolyDADMAC (PDADMAC) is a high-charge-density liquid cationic coagulant. It neutralizes negatively charged colloids to remove turbidity and color, widely used for raw water pretreatment, industrial wastewater and sludge conditioning, and commonly matched with PAM for better coagulation-flocculation effect.
Poly DADMAC
- - High cationic charge density, excellent turbidity and color removal capacity
- - Wide applicable pH range from 3.0 to 9.0, stable performance for complex water quality
- - Liquid formulation, easy feeding and compatible with automatic dosing skid
- - Perfectly cooperate with PAM flocculants to improve solid-liquid separation
- - Low required dosage, reduce overall chemical operation cost
- - Multiple solid content grades: 10%~50% customizable
- - Export documents including MSDS, COA and TDS can be provided
PolyDADMAC (Polydiallyldimethylammonium Chloride / PDADMAC)
Cationic Coagulant for Raw Water Clarification, Turbidity Removal, Color Removal & Sludge Conditioning
Product Introduction
PolyDADMAC, also known as PDADMAC, is a high charge density cationic polyelectrolyte. It is widely used as a coagulant in drinking water pretreatment, municipal wastewater, industrial wastewater, sludge conditioning and solid-liquid separation.
PolyDADMAC works by neutralizing negatively charged colloids, destabilizing fine suspended particles and promoting the formation of large, settleable flocs. It is often used together with anionic or cationic PAM to improve flocculation efficiency, reduce turbidity, remove color and enhance sludge dewatering performance.
Technical Specifications
| Item | Parameter |
|---|---|
| CAS No. | 26062-79-3 |
| Appearance | Colorless to Pale Yellow Transparent Liquid |
| Ionic Type | Strong Cationic |
| Solid Content | 10% ~ 50% (Customizable) |
| Charge Density | High |
| Viscosity (cps) | 50 ~ 500 cps (Different grades) |
| pH Value | 3.0 ~ 9.0 |
| Freezing Point | Approx. -10℃ |
| Recommended Dosage | 0.5 ~ 5 ppm for raw water; 10 ~ 50 ppm for sludge conditioning |
| Packing | 25kg / 200kg Plastic Drum, IBC Tank |
Key Advantages & Benefits
- High Charge Density: Effectively neutralizes negatively charged colloids and destabilizes fine suspended particles in raw water and wastewater.
- Excellent Turbidity & Color Removal: Helps reduce water turbidity, remove color and improve clarification efficiency in pretreatment.
- Wide pH Adaptability: Stable performance over a broad pH range, suitable for different water quality conditions.
- Compatible with PAM: Often used as a primary coagulant before PAM dosing, forming a combined coagulation-flocculation process.
- Improved Sludge Dewatering: Conditions organic sludge, promotes floc formation and enhances the performance of filter press and centrifuge.
- Liquid Form & Easy Dosing: Convenient for automatic dosing systems in water plants, sewage stations and industrial wastewater treatment systems.
Typical Applications
- Drinking water pretreatment and raw water clarification
- Turbidity removal and color removal in surface water
- Municipal wastewater and industrial wastewater treatment
- Sludge conditioning before dewatering
- Textile dyeing wastewater and papermaking wastewater treatment
- Oilfield produced water and oily wastewater treatment
FAQ
Q1: What is PolyDADMAC?
A1: PolyDADMAC, or PDADMAC, is a strong cationic polyelectrolyte used as a coagulant in water and wastewater treatment. It neutralizes negative colloids and improves floc formation.
Q2: What is the difference between PolyDADMAC and PAM?
A2: PolyDADMAC is a cationic coagulant with high charge density but relatively lower molecular weight. PAM is a flocculant with higher molecular weight. They are often used together: PolyDADMAC first, then PAM.
Q3: Can PolyDADMAC be used for drinking water?
A3: Yes, it can be used for drinking water pretreatment and raw water clarification. However, the specific grade and dosage must comply with local water quality standards and project requirements.
Q4: How to dose PolyDADMAC?
A4: It is usually dosed before flocculation. For raw water, typical dosage is 0.5 ~ 5 ppm. For sludge conditioning, dosage is higher, around 10 ~ 50 ppm. Jar test is recommended.
Q5: Is PolyDADMAC compatible with PAM?
A5: Yes. PolyDADMAC is commonly used with anionic PAM or cationic PAM. PolyDADMAC destabilizes colloids first, and PAM builds larger flocs for better settling and dewatering.
Q6: What is your MOQ and lead time?
A6: MOQ is 1 ton for liquid products. Lead time is 7 ~ 15 working days after deposit. MSDS, COA and TDS are available for export and project submission.
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