Nonionic Polyacrylamide (NPAM)

Product Introduction

Not all wastewater is suitable for treatment with anionic or cationic polyacrylamide. For acidic wastewater, low-turbidity suspensions, and certain types of special industrial wastewater, nonionic polyacrylamide (NPAM) typically provides more stable flocculation results.

Nonionic polyacrylamide (NPAM) has a molecular weight range of 6 million to 14 million and exhibits excellent adsorption bridging capacity and flocculation performance.

NPAM is widely used in industrial wastewater treatment, mineral processing, ceramics, building materials, metallurgy, textiles, and chemical industries. It is available in a variety of molecular weight specifications to suit different water quality conditions, helping customers achieve more stable and cost-effective treatment results.

Product Features

Suitable for the treatment of special industrial wastewater
Excellent adsorption and bridging capabilities
Improves sedimentation and filtration efficiency
Rapid dissolution and low dosage
Provides effective flocculation for acidic or low-charge suspensions
Customized formulations available to meet specific operating conditions

Packaging

25 kg kraft paper composite bags, lined with a PE moisture-proof bag.

Technical Services

Model Recommendations
Free Sample Testing
Water Sample Analysis and Product Selection
Guidance on Usage Concentrations and Dosage Plans
On-site Technical Support

FAQ

1. What is the primary function of Non-ionic Polyacrylamide (NPAM)?
NPAM is a water-soluble high-molecular-weight polymer primarily used for flocculation, sedimentation, solid-liquid separation, and particle aggregation. It is applied in fields such as industrial wastewater treatment, mining, and mineral processing.

2. What is the molecular weight of NPAM?
Our NPAM is available with molecular weights ranging from approximately 6 million to 14 million; specific grades can be selected based on customer application requirements.

3. What is the difference between NPAM and Anionic Polyacrylamide (APAM)?
NPAM has very low ionicity, whereas APAM carries a distinct anionic charge. They are suitable for different water qualities, suspended particles, and process conditions; the choice depends on the specific material being treated.

4. What is the difference between NPAM and Cationic Polyacrylamide (CPAM)?
CPAM carries a positive charge and is commonly used for sludge dewatering and treating negatively charged particles. NPAM has lower ionicity and is better suited for wastewater, mineral slurries, and industrial processing systems with lower ionic requirements.

5. Can NPAM be used for wastewater treatment?
Yes. NPAM can be used for the flocculation and solid-liquid separation of certain industrial wastewaters; it improves sedimentation and separation efficiency by promoting the formation of larger flocs from fine suspended particles.

6. Can NPAM be used in mining and mineral processing?
Yes. Depending on the properties of the slurry, NPAM can be used in processes such as mineral processing, slurry sedimentation, tailings treatment, and solid-liquid separation.

7. How should I choose between APAM, CPAM, and NPAM?
Selection requires a comprehensive assessment of factors such as suspended particle properties, surface charge, pH, salinity, solids content, and the final treatment objective. For new water samples or slurries, it is recommended to conduct a jar test to determine the appropriate product grade.

8. How should NPAM be dissolved?
It is recommended to add NPAM slowly and evenly into the water while stirring continuously to prevent clumping caused by adding a large amount at once. Allow the polymer to fully dissolve and mature before use.

9. What is the recommended dosage for NPAM?
There is no fixed dosage applicable to all projects. The actual dosage depends on water quality, suspended solids concentration, the treatment process, and the desired outcome; laboratory testing is recommended to determine the optimal dosage.

10. Does a higher molecular weight of NPAM yield better results?
Not necessarily. A higher molecular weight does not guarantee superior treatment performance in all applications. The appropriate molecular weight should be selected based on factors such as floc size, settling velocity, system viscosity, and actual operating conditions.

11. What is the physical appearance of NPAM?
It typically appears as white or off-white granules or powder; the specific appearance depends on the actual product supplied.

12. What are the packaging specifications for NPAM?
Standard packaging is 25 kg per bag; customized packaging is also available to meet export shipping requirements or specific customer needs.

13. Can COA, TDS, and MSDS be provided for NPAM?
Yes, COA, TDS, and MSDS can be provided. Specific technical specifications—such as molecular weight, solid content, dissolution time, and residual monomer levels—are subject to the actual product grade supplied and the test results of the corresponding batch.

14. How do I determine which type of NPAM is suitable for my project?
Customers can provide details regarding the application industry, water quality or slurry characteristics, pH, suspended solids concentration, current treatment process, and desired results. Based on this information, we can recommend the appropriate NPAM grade and suggest conducting sample tests first.