Cationic Polyacrylamide CPAM: High-Performance Sludge Dewatering & Wastewater Treatment Flocculant

Introduction

Cationic Polyacrylamide (CPAM) is a high-molecular-weight water-soluble polymer engineered for superior sludge dewatering and organic wastewater treatment. With its positively charged molecular chains, CPAM excels at neutralizing negatively charged organic colloids and suspended solids—making it the flocculant of choice for municipal sewage plants, industrial effluent treatment, and papermaking processes where efficient solid-liquid separation is paramount.

Product Specifications

Our cationic polyacrylamide is produced as a white or light yellow granular powder with rapid water solubility. All grades are backed by SGS and BV third-party certification:

The ionicity ranges from 20 to 80, providing a broad spectrum for precise charge-demand matching across diverse sludge and wastewater types. Custom formulations are available upon request for specialized applications.

Key Functions and Mechanisms

CPAM’s cationic (positively charged) nature gives it a decisive advantage when treating organic-rich effluents. Most biological sludges, sewage solids, and organic industrial wastes carry a net negative surface charge. CPAM neutralizes this charge through electrostatic attraction while its long polymer chains simultaneously bridge multiple particles into large, shear-resistant flocs. This dual action—charge neutralization plus bridging flocculation—accelerates settling and produces a denser, less hydrated sludge cake, directly reducing disposal volumes and dewatering costs.

Primary Applications

1. Sludge Dewatering: The flagship application. CPAM significantly reduces the water content of municipal and industrial sludge when used with belt filter presses, centrifuges, or screw presses. Lower cake moisture translates to reduced transport weight and lower landfill or incineration costs.
2. Industrial & Municipal Wastewater: Effective across food processing, tannery, chemical, and domestic sewage treatment plants where organic loads are high and COD/BOD reduction is critical.
3. Papermaking Process: Used as a retention and drainage aid to improve the dry and wet strength of paper while increasing the retention of fine fibers and mineral fillers—reducing raw material loss and improving sheet quality.

Competitive Advantages

• Broad Ionicity Range: With grades from 20 up to 80, our CPAM covers the full spectrum of cationic charge density—from low-cationic for fibrous sludges to ultra-high-cationic for heavily stabilized biological solids.
• Certified Quality: SGS and BV certification ensures consistent molecular weight, ionic charge, and dissolution performance across every batch, meeting the procurement standards of international water utilities and EPC contractors.
• High Solid Content: At ≥90% active content, less product is needed per ton of dry solids treated, reducing both chemical cost and storage footprint.
• Reliable Supply: With a production capacity of 1,000 MT per month and a standard delivery time of 15 working days after payment, we support both spot purchases and long-term supply contracts with dependable lead times.

Packaging and Logistics

CPAM is packaged in 25 kg bags with inner plastic liners and outer polypropylene woven bags for moisture protection during transit and storage. Minimum order quantity is 1 MT, with flexible payment terms including L/C, T/T, Western Union, and MoneyGram. For large-volume buyers, we offer competitive negotiated pricing and scheduled shipment arrangements to ensure uninterrupted plant operations.