PolyDADMAC Cationic Flocculant for Centrifuge Sludge Dewatering
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Product Overview
PolyDADMAC, also known as PDADMAC or Poly(dimethyl diallylammonium chloride), is a water-soluble cationic polymer with strong charge neutralization ability. It is widely used in wastewater treatment, sludge dewatering, industrial clarification, mining water treatment, paper-making, and oil industry applications.
In centrifuge sludge dewatering systems, sludge usually contains organic matter, colloidal particles, suspended solids, biological flocs, and high water content. If sludge is not properly conditioned, centrifuge performance may become unstable, resulting in poor cake dryness, high centrate turbidity, solids carryover, and higher disposal cost.
Bluwat PolyDADMAC Cationic Flocculant neutralizes negatively charged sludge particles and colloids, helping them aggregate into stronger flocs. This improves sludge separation inside the centrifuge, supports better cake formation, and reduces suspended solids in the discharged centrate.
Application in Centrifuge Sludge Dewatering
Centrifuge dewatering requires strong and stable flocs that can resist shear during high-speed separation. PolyDADMAC can be used as a sludge conditioner before centrifuge equipment to improve sludge preparation and solid-liquid separation.
Typical applications include:
Key Benefits
High Charge Density for Sludge Conditioning
PolyDADMAC provides strong cationic charge to neutralize negatively charged sludge particles and colloids. This helps destabilize sludge and improves floc formation before centrifuge dewatering.
Improved Centrifuge Separation Efficiency
Proper conditioning with PolyDADMAC helps form larger and stronger sludge flocs, making solids easier to separate from water under centrifugal force.
Clearer Centrate
By reducing fine solids carryover, PolyDADMAC helps improve centrate clarity and reduce the load returned to the wastewater treatment system.
Better Sludge Cake Formation
The product supports compact sludge floc structure, helping improve cake consistency and downstream sludge handling.
Supports Sludge Volume Reduction
Improved water separation can help reduce sludge volume, lowering transportation and disposal pressure.
Easy Liquid Dosing
Liquid PolyDADMAC is easy to dilute, pump, and dose continuously, making it suitable for automatic sludge dewatering systems.
Flexible Grade Selection
Bluwat provides 20%, 40%, 45%, and 50% liquid PolyDADMAC grades with different viscosity and molecular weight options to match different sludge types and centrifuge operating conditions.
Can Be Used with PAM
PolyDADMAC can be used alone or together with cationic PAM when additional polymer bridging, stronger floc growth, or higher cake dryness is required.
Working Principle
PolyDADMAC improves centrifuge sludge dewatering through charge neutralization and flocculation. Treatment mechanism:
Recommended Treatment Process
Product Specifications
Available PolyDADMAC Liquid Grades
DA 20% Series
DA 201 - 205
Range from Low to Very high molecular weight (Viscosity: <200 to 3000 cps)
DA 40% Series
DA 401 - 408
Range from Low to Very high molecular weight (Viscosity: <500 to >15000 cps)
DA 45% Series
DA 451
High molecular weight, viscosity 8000–12000 cps
DA 50% Series
DA 501 - 507
Range from Low-medium to Very high molecular weight (Viscosity: 1000 to >15000 cps)
Application Method & Selection
Application Method
For centrifuge sludge dewatering, PolyDADMAC should be selected according to sludge type, concentration, organic content, pH value, and centrifuge type. When used alone, it is normally diluted to 0.5–5% concentration. The optimum dosage should be confirmed by jar testing and on-site centrifuge trials.
Product Selection Guidance
Low to medium viscosity grades are ideal for fast charge neutralization. High molecular weight grades are better for difficult sludge with weak flocs or high centrate turbidity.
Use with PAM
PolyDADMAC provides charge neutralization while PAM provides polymer bridging. For difficult sludge, PolyDADMAC can be dosed before PAM to improve conditioning and floc strength.
Packaging, Storage & Why Choose Bluwat
Packaging & Storage
Supplied in 25L, 200L, and 1000L IBC drums. Store in a cool, dry place away from direct sunlight and heat.
Why Choose Bluwat?
Professional manufacturer with high charge density products, multiple grades, stable export supply, and full technical support (COA, TDS, MSDS).
FAQ
Is PolyDADMAC suitable for centrifuge sludge dewatering?
How does PolyDADMAC improve centrifuge operation?
Can PolyDADMAC improve sludge cake dryness?
Can PolyDADMAC be used with cationic PAM?
What dilution concentration is recommended?
How should the dosage be determined?