PolyDADMAC PAC Booster Coagulant for Turbid River Water Purification
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Product Overview
PolyDADMAC, also known as PDADMAC or Poly(dimethyldiallylammonium chloride), is a liquid cationic polymer with strong charge neutralization ability. It is widely used in drinking water treatment, wastewater treatment, industrial clarification, sludge dewatering, mining, paper-making, textile, and oil industry applications.
In turbid river water treatment, raw water usually contains clay, silt, colloids, algae, natural organic matter, and fine suspended particles. These impurities are often negatively charged and difficult to remove by sedimentation or filtration alone.
Bluwat PolyDADMAC works as a PAC booster coagulant by improving charge neutralization and enhancing floc formation. When used with Polyaluminium Chloride, it can help produce larger, stronger, and more settleable flocs. This supports better clarification, lower turbidity, reduced filter loading, and more stable treated water quality.
Application in Turbid River Water Purification
River water quality can change quickly due to rainfall, flooding, seasonal runoff, algae growth, and suspended sediment. A stable coagulant system is important for water treatment plants that need to handle variable turbidity.
Bluwat PolyDADMAC PAC Booster Coagulant can be used in:
Key Benefits
Boosts PAC Coagulation Performance
PolyDADMAC provides strong cationic charge, while PAC provides inorganic coagulation and hydroxide floc formation. Combined use can improve particle destabilization, floc size, and settling performance.
High Charge Density for Fast Neutralization
PolyDADMAC rapidly neutralizes negatively charged clay, silt, colloids, algae, and suspended particles in turbid river water.
Improved Turbidity Removal
By strengthening coagulation and flocculation, PolyDADMAC helps reduce raw water turbidity and improve clarified water quality before filtration.
Stronger and Larger Flocs
PolyDADMAC helps form compact and settleable flocs, reducing fine solids carryover from clarification to filtration.
Reduced Filter Load
Better clarification can reduce suspended solids entering filters, helping improve filter operation and reduce backwash pressure.
Effective at Low Dosage
Due to its high charge density, PolyDADMAC can be effective at relatively low dosage when properly optimized by jar testing.
Working Principle
PolyDADMAC improves PAC coagulation mainly through charge neutralization and floc strengthening. Treatment mechanism:
- Turbid river water contains negatively charged clay, silt, organic matter, algae, and colloidal particles.
- PAC begins inorganic coagulation and forms hydroxide flocs.
- PolyDADMAC provides strong cationic charge to neutralize remaining particle surface charges.
- Destabilized particles attach to PAC flocs and polymer chains.
- Larger and stronger flocs form during slow mixing.
- Flocs settle more easily in clarifiers or are removed by filtration.
- Clarified water has lower turbidity and reduced suspended solids.
Recommended Treatment Process
Product Specifications
Available PolyDADMAC Liquid Grades
DA 201: Low molecular weight, viscosity below 200 cps
DA 202: Medium molecular weight, viscosity 200–700 cps
DA 203: Medium molecular weight, viscosity 700–1000 cps
DA 204: High molecular weight, viscosity 1000–2000 cps
DA 205: Very high molecular weight, viscosity 2000–3000 cps
DA 401 - 403: Low to Medium molecular weight (500-3000 cps)
DA 404 - 405: High molecular weight (3000-8000 cps)
DA 406 - 408: Very high molecular weight (8000 to above 15000 cps)
DA 501 - 502: Low-medium molecular weight (1000-3000 cps)
DA 503 - 504: High molecular weight (3000-8000 cps)
DA 505 - 507: Very high molecular weight (8000 to above 15000 cps)
Application Method & Guidance
For turbid river water purification, PolyDADMAC should be selected according to raw water turbidity, suspended solids, organic matter, algae content, pH value, temperature, PAC type, and clarification target.
Dosing: When used alone, PolyDADMAC is normally diluted to 0.5–5% concentration. When used as a PAC booster, the dosage should be optimized together with PAC through jar testing.
Selection: Low to medium viscosity for fast dispersion in medium turbidity. High molecular weight for high turbidity or difficult colloids to improve floc size.
Use with PAC
PolyDADMAC and PAC can be used together for turbid river water purification. PAC mainly provides inorganic coagulation and hydroxide floc formation, while PolyDADMAC provides strong charge neutralization and floc strengthening. Combined use improves efficiency and reduces total chemical cost.
Packaging and Storage
Store the product in original containers in a cool and dry place. Keep away from heat, flame, and direct sunlight. Refer to the TDS and MSDS for detailed information.