The polyamine series products demonstrate significant advantages and technical features in water treatment applications, encompassing the following core aspects:

1. High-Efficiency Flocculation Performance

• Charge Neutralization & Adsorption Bridging: Leveraging their cationic properties, they effectively neutralize negatively charged colloidal particles, forming dense flocs with a 40% faster settling speed compared to conventional flocculants. In textile dyeing wastewater treatment, COD removal rates reach 78%, with a 30% reduction in sludge volume.

• Broad pH Adaptability: Maintain stable activity within a pH range of 3–11, achieving a heavy metal removal rate of 92% even under highly acidic conditions (pH = 2.5).

• Synergistic Enhancement: When compounded with polyaluminum chloride (PAC), decolorization efficiency improves significantly, with optimal performance observed in systems featuring a basicity (B) of 1.5 and viscosity (η) of 1600.

2. Bactericidal & Algae-Inhibiting Functions

• Algal Control: As a potent cationic biocide, it effectively eliminates green and black algae in swimming pools and industrial circulating water while simultaneously providing flocculation and clarification. Optimal performance is often achieved in composite formulations with other agents.

• Adaptability to Complex Water Quality: Retains efficacy in acidic, alkaline, or high-hardness water environments. In oilfield wastewater treatment, it effectively kills slime-forming microorganisms and inhibits algal growth.

3. Industrial Wastewater Treatment

• Oily Wastewater: In petrochemical applications, it significantly enhances oil removal efficiency while reducing COD by 20%–30%.

• High-Salinity Wastewater: Through molecular design optimization, future breakthroughs are anticipated in high-salinity wastewater treatment. Current applications include reverse osmosis (RO) pretreatment.

4. Safety & Cost Efficiency

• Environmental Friendliness: Residual monomer content < 0.1%, with a 65% biodegradation rate within 48 hours, meeting discharge standards.

• Economic Benefits: In the rubber industry, dosage is reduced by 50%–60% compared to traditional flocculants like dicyandiamide-formaldehyde resins, lowering overall costs while eliminating formaldehyde content.

These materials have been extended to 12 water treatment scenarios, including sludge dewatering and oilfield anti-swelling. Future technological advancements will focus on high-salinity tolerance and full lifecycle eco-design.