| Product | Cationic Polyacrylamide (CPAM) |
| Form | White granular powder |
| Molecular weight | 8–14 million across the product range |
| Cationicity grades | 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% |
| Main use | Sludge dewatering and industrial water clarification |
Description
CPAM can be considered for municipal and industrial sludge dewatering, wastewater clarification and other separation steps where a cationic polymer is suitable. Final grade selection should be based on the actual sludge, water chemistry, equipment and representative trial results.
Municipal wastewater sludge dewatering
Industrial wastewater clarification and sludge treatment
Solid-liquid separation where a cationic polymer is suitable
Filter press, belt press and centrifuge process trials
The following limits are from an inspection report for one tested CPAM grade. The cationicity and molecular-weight ranges shown above describe the product family, not that single test result.
| Test item | Requirement |
|---|---|
| Appearance | White granular powder |
| Solids content | ≥90.0% |
| Residual acrylamide monomer, dry basis | ≤0.02% |
| Dissolution time at 1 g/L | ≤60 min |
| Residue on 1.00 mm sieve | ≤2% |
| Residue on 180 μm sieve | ≥88% |
| Water-insoluble matter | ≤0.3% |
These tested-grade limits are not specifications for every CPAM grade or grade combination. Confirm the cationicity percentage basis, molecular-weight measurement basis and current TDS/COA for the exact grade.
There is no universal CPAM dose. The working dose depends on sludge characteristics, solids loading, pH, charge demand, mixing and the dewatering equipment. Run representative jar, bench or plant trials before setting a production dose.
Keep the package sealed in a cool, dry place away from moisture and direct sunlight.
Keep the powder dry to reduce caking and handling problems.
Follow the exact product TDS, SDS and site safety procedures.
Share your sludge characteristics, target dewatering equipment, trial requirements and destination with Tairan. We can help identify an available CPAM grade and provide the applicable TDS, COA and SDS for review.
Useful inquiry details: process type · solids condition · pH/charge demand · separation equipment · required documents · destination.
