Blufloc Anionic PAM Emulsion for Industrial Wastewater Clarification
Product Introduction
Industrial wastewater clarification often follows pH adjustment and coagulation. Fine precipitates may settle slowly, escape clarifiers, or overload filters when polymer selection and mixing are not matched to the process.
Anionic PAM is especially useful for bridging positively charged or neutralized particles after inorganic coagulation. The right emulsion grade depends on particle mineralogy, residual coagulant, salts, and hydraulic shear.
Blufloc anionic PAM emulsion promotes rapid settling and clarification of fine suspended solids in industrial wastewater. Oil-based EA 6520 and water-based EWA 7520 provide high-molecular-weight options with different anionic charge levels.
Application Challenges
- Slow settling of fine precipitates
- Cloudy clarifier overflow or DAF effluent
- Floc breakup at mixers and transfer points
- Variable performance caused by upstream pH or coagulant drift
How the PAM Emulsion Works
Anionic polymer chains adsorb onto particle surfaces and link multiple destabilized particles into larger floc. The long chain provides bridging, while anionic charge affects extension and adsorption. The polymer is normally added after the main neutralization or coagulation step.
Important: The suggested grades below are starting candidates, not a fixed prescription. Final selection and dosage require representative laboratory and plant trials.
Recommended Blufloc Grades
| Grade | Base | Molecular Weight | Charge | Suggested Screening Role |
| EA 6520 | Oil-based | Very High | High anionic | Strong bridging for demanding clarification and settling |
| EWA 7520 | Water-based | Very High | Medium anionic | Water-based option for automatic dosing and moderate charge demand |
Product Advantages
- Very-high molecular weight for fine-particle bridging
- Oil- and water-based formulation choices
- Fast liquid preparation for continuous treatment
- Potential for faster settling and clearer overflow
- Sample-based testing with the site's coagulant sequence
Application Process
- Stabilize pH and coagulant dose before screening APAM.
- Prepare each emulsion according to its carrier-specific instructions.
- Add polymer under rapid distribution followed by gentle floc growth.
- Compare settling rate, floc strength, supernatant clarity, and sludge volume.
- Scale up by preserving dose basis, mixing energy, and hydraulic residence time.
Product Selection Guidance
EA 6520 is a strong screen for high bridging demand and fine industrial solids. EWA 7520 is a useful water-based candidate where medium anionic charge is sufficient or automatic dosing favors that formulation.
Compare candidates on active polymer mass and total operating cost. Neat-emulsion price per kilogram can be misleading if products differ in activity, preparation efficiency, dose, equipment throughput, cake or underflow quality, and downstream disposal cost.
Operating Indicators to Record
- Settling rate
- Overflow TSS or turbidity
- Floc resilience
- Sludge volume
- Polymer cost per treated volume
Troubleshooting Note
If floc forms but remains suspended, examine density, gas entrainment, and clarifier hydraulics. If no floc forms, verify that coagulation and pH have actually destabilized the particles before increasing APAM.
Packaging, Storage, and Safe Handling
Standard supply options shown on the Blufloc PAM emulsion product pages are 25 kg containers, 200 kg plastic drums, and 1000 kg IBCs. Keep the package sealed in a cool, dry, ventilated area and protect it from direct sunlight, freezing, and excessive heat. Follow the grade-specific TDS and SDS for shelf life, handling limits, and transport classification. Polymer spills can make floors extremely slippery and should be contained and cleaned promptly.
Why Choose Bluwat Chemicals
- More than 25 years of water-treatment chemical manufacturing experience, supported by three modern production plants.
- The company website reports more than 800,000 tons delivered and exports to over 100 countries and regions.
- Factory-direct coordination for grade selection, batch documentation, packaging, and export logistics.
- Laboratory screening support using customer water or sludge samples, with recommendations based on the actual treatment objective.
- TDS, SDS, COA, and applicable certification documents can be supplied for the selected grade and destination market.
For industrial wastewater clarification, Bluwat can screen adjacent PAM emulsion grades, review preparation and dosing conditions, and help define a plant-trial plan using agreed performance indicators.
Quality Control and Technical Support
- Confirm the required grade specification and order documentation before production and shipment.
- Use representative customer samples to shortlist products under realistic pH, temperature, solids, water chemistry, and shear.
- Supply a clear make-down, dilution, dosing, and scale-up recommendation for the selected grade.
- Review plant-trial data and adjust charge level, dose, addition point, or mixing conditions when necessary.
Frequently Asked Questions
Should APAM be added before or after coagulant?
It is commonly added after pH adjustment and coagulation so it can bridge destabilized particles; confirm with jar tests.
Can APAM replace PAC?
APAM is primarily a flocculant and does not always replace the charge-neutralization or precipitation role of a coagulant.
What is the difference between EA 6520 and EWA 7520?
EA 6520 is oil-based with high anionic degree; EWA 7520 is water-based with medium anionic degree. Both have very high molecular weight.
Why can clear water still contain target dissolved contaminants?
Flocculation removes suspended or precipitated material; dissolved contaminants may require a separate treatment mechanism.