Case Study: How Industrial Polyacrylamide Improved Wastewater Treatment Efficiency by 30%
Update:20/01/2026

Discover how Dongying Sweiche Environmental Protection Co., Ltd., a leading polyacrylamide manufacturer in China, helped a wastewater treatment plant achieve 30% higher efficiency using industrial polyacrylamide. As a professional PAM supplier with 16+ formulations (including cationic, anionic, and nonionic polyacrylamide), we reveal the science behind selecting the right water treatment chemicals for optimal flocculation. This case study demonstrates why global buyers trust our flocculant manufacturing expertise.

The Challenge: Inefficient Flocculation in Wastewater Treatment

A municipal wastewater treatment plant in Southeast Asia was struggling with inconsistent flocculation performance using conventional water treatment chemicals. The existing anionic polyacrylamide formulation showed three critical limitations: (1) 18% slower sedimentation rates compared to industry benchmarks, (2) excessive sludge volume increasing disposal costs by 22%, and (3) variable performance across seasonal temperature fluctuations. Plant operators needed a specialized industrial polyacrylamide solution that could maintain stable viscosity across pH 5-9 ranges while reducing polymer dosage requirements. As a trusted polyacrylamide manufacturer China, Dongying Sweiche conducted on-site water quality analysis measuring turbidity (23-45 NTU), COD levels (380-620 mg/L), and zeta potential (-15 to -22 mV) to identify the root causes.

Customized PAM Solution Development

Our R&D team engineered a cationic polyacrylamide blend with tailored molecular weight (8-12 million Daltons) and charge density (40-60%). The solution incorporated three technical innovations:

  • Temperature-stable copolymer matrix maintaining 92% viscosity retention from 10°C to 40°C
  • Precision charge neutralization technology reducing required dosage by 35% compared to standard formulations
  • Enhanced bridging flocculation structure producing denser sludge with 28% lower volume

As a professional flocculant manufacturer, we conducted 78 pilot-scale tests to optimize the anion/cation balance, achieving perfect compatibility with the plant's existing dissolved air flotation (DAF) system.

Measurable Performance Improvements

After implementing our industrial polyacrylamide solution, the wastewater treatment plant documented significant operational enhancements:

ParameterBeforeAfterImprovement
Flocculation Time42 minutes29 minutes31% faster
Sludge Volume3.8 m³/ML2.7 m³/ML29% reduction
Polymer Consumption1.2 kg/ton0.82 kg/ton32% savings

The plant achieved 30% higher overall treatment efficiency while meeting all discharge standards for TSS (<15 mg/L) and BOD (<20 mg/L). Our nonionic polyacrylamide additives further stabilized performance during monsoon season pH fluctuations.

Why Choose Dongying Sweiche as Your PAM Supplier?

With annual production capacity of 20,000 tons across 16 polyacrylamide formulations, we offer unmatched technical advantages for water treatment chemicals:

  • ISO 9001 & ISO 14001 certified manufacturing facilities
  • Molecular weight control within ±5% specification
  • Customized anionic/cationic polyacrylamide blends for specific wastewater characteristics
  • 24/7 technical support from PhD-formulated chemists

Conclusion & Next Steps

This case study demonstrates how selecting the right industrial polyacrylamide from an experienced polyacrylamide manufacturer can transform wastewater treatment economics. Whether you need cationic polyacrylamide for municipal sludge dewatering or specialized nonionic polyacrylamide for difficult industrial streams, Dongying Sweiche delivers scientifically formulated solutions.

Contact our water treatment chemicals experts today for a free consultation on optimizing your flocculation process. Request your customized PAM product recommendation within 48 hours.