Applications of Polyacrylamide in Industrial Manufacturing

Polyacrylamide serves as a multifunctional polymer across various industrial manufacturing sectors. Our production facilities supply material strictly aligned with real downstream requirements, supporting advanced processing, regulatory compliance, and efficient utility in large-scale operations.

1. Industrial Wastewater Treatment

Industrial facilities use polyacrylamide to improve solid-liquid separation. It accelerates floc formation in high-throughput clarifiers and sedimentation tanks, increasing particle size and settling rates for suspended solids. Many facilities operate within discharge limits set by national and local environmental agencies. Dosage tuning depends on effluent load and plant-specific protocols, often after jar testing and treatability studies. Downstream integration involves dosing units synchronized with feed pumps, in-line static mixers, or batch tanks. The final benefit is captured in clarified water, thickened sludge for dewatering, and reduced chemical oxygen demand in plant effluents.

Industry compliance standards

• US EPA 40 CFR Part 133 Secondary Treatment Regulation
• EU Water Framework Directive (2000/60/EC)
• China GB 18918-2002 (Integrated Wastewater Discharge Standard)
• ISO 14001 Environmental Management Systems

Typical usage ratio

• 5–50 ppm (based on influent solids content, adjusted via jar test)

Downstream process integration

• Dosing before sedimentation tanks
• Added to sludge dewatering units (centrifuge or filter press)
• Blending with coagulants as pre-polymer or dry powder
• Continuous dosing in high-volume clarifiers

Final product types

• Treated industrial effluent
• Mechanically dewatered sludge cakes
• Recycled process water
• Regulatory-compliant discharge streams

2. Oil & Gas Enhanced Oil Recovery (EOR)

Upstream oilfields inject polyacrylamide to improve oil displacement and production rates in secondary recovery operations. The polymer modifies water viscosity to increase the mobility ratio and reduce fingering, supporting consistent oil sweep in mature reservoirs. Material grades and injection schemes must meet strict environmental, safety, and operational standards for each well field. The usage ratio depends on reservoir permeability, temperature, and brine salinity. Field process integration involves automated chemical mixing and high-pressure injection pumps. Downstream results appear as increased crude output, reduced water cut, and extended well life.

Industry compliance standards

• API RP 63 (Recommended Practices for EOR Polymer Flooding)
• China GB/T 26794-2011 (Polymer Used in Oil Production)
• Norwegian NORSOK Standards
• ISO 9001:2015 for supply chain traceability

Typical usage ratio

• 200–2,000 ppm (depending on reservoir properties and injection strategy)

Downstream process integration

• Make-down in fresh or formation water tanks on site
• High-shear inline blending with waterflood streams
• Continuous metered injection into wellhead
• Quality control via field rheology and viscosity checks

Final product types

• Crude oil with reduced water content
• Produced water requiring further treatment
• Reservoir residual hydrocarbons recovered
• Enhanced oil recovery project output

3. Mineral Processing (Ore Flotation and Filtration)

Polyacrylamide grades assist mineral processors in fine particle flocculation during tailings thickening, ore flotation, and concentrate filtration. Within beneficiation plants, polymers enable cost-effective handling of complex ores by improving pulp clarification and dewatering efficiency. Operators adjust ratios according to ore mineralogy and plant throughput, supported by lab-scale testwork. Integration occurs in thickeners, clarifiers, and filter cloths, under active DCS or PLC control. The outcome is increased filtration rates, reduced water loss, and clean mineral concentrates.

Industry compliance standards

• Australian AS 4156.6-2000 Coal Preparation—Flocculants and Coagulants
• EU REACH Registration for Mining Chemicals
• China GB 20553—2006 (Mining Flocculant Standards)
• ISO 9001 Certified Process Plants

Typical usage ratio

• 10–100 g/ton ore (selected by mineral type and slurry characteristics)

Downstream process integration

• Dosing into thickener underflows
• Injection at flotation tailings ponds
• Use in filtration press feed systems
• Automated addition via PLC-controlled make-down units

Final product types

• Mined metal concentrates
• Filtered tailings cakes
• Process water for recirculation
• Dry stack tailings for storage

4. Paper Manufacturing (Retention Aid and Drainage Agent)

Paper mills introduce polyacrylamide as a retention and drainage aid in the wet end of the papermaking line. By regulating fines and filler retention, the polymer manages sheet formation, accelerates drainage, and increases paper machine speed. Strict compliance with FDA and food-contact safety applies for food-grade paper products. Dosage is tailored by paper grade, fiber type, and machine design, verified with real-time QC and white water analysis. Mills dose the product into headboxes, blend chests, or approach flows depending on process design. The end result is improved retention of fibers and fillers, lower chemical costs, and uniform sheet quality.

Industry compliance standards

• US FDA 21 CFR 176.170 (Components of paper and paperboard in contact with aqueous and fatty foods)
• German BfR Recommendation XXXVI
• EN 13432—Compostability for biodegradable papers
• ISO 9001 and ISO 22000 for food-contact production

Typical usage ratio

• 200–800 g/ton dry pulp (modified per furnish and paper grade)

Downstream process integration

• Dosing into stock preparation chest
• Injection at headbox approach flow
• Continuous addition in white water loop
• Automated flow-proportional dosing with real-time QC

Final product types

• Food-grade packaging papers
• Fine papers and tissue grades
• Coated and uncoated printing papers
• Industrial board and specialty sheets

5. Textile Sizing and Finishing

Textile plants use polyacrylamide to enhance yarn sizing and warp strength before weaving. The material forms a coating around fiber strands, reducing hairiness, breakage, and loom stoppage. Compliance with OEKO-TEX, ZDHC, and REACH guides raw material selection and process hygiene. The ratio depends on yarn count, fiber blend, and finishing requirements; applied via size press or jet applicators to ensure stable viscosity and even distribution. The treated yarn undergoes subsequent weaving, scouring, or dyeing, resulting in high weaving efficiency and uniform fabric appearance.

Industry compliance standards

• OEKO-TEX Standard 100 (Textile safety for restricted substances)
• ZDHC MRSL (Manufacturing Restricted Substances List)
• EU REACH Regulation (EC 1907/2006)
• ISO 9001 Certified Textile Processing

Typical usage ratio

• 0.1–1.0% (w/w on yarn weight; varies by yarn quality and sizing mix)

Downstream process integration

• Preparation of size mix for warp sizing baths
• Application in size press or sizing machines
• Inclusion in finishing agent blends
• Continuous process control during warp preparation

Final product types

• Sized cotton and blended yarns
• Textile warps for weaving
• Fabrics with reduced shedding
• Dyed and finished textiles

6. Municipal Water Treatment (Potable Water Clarification)

Polyacrylamide enhances potable water treatment by acting as a coagulant aid in clarification and filtration steps. Operators deploy the polymer to capture fine particles and colloids, delivering clearer water with reduced turbidity and lower pathogenic risk. Strict adherence to drinking water additive regulations is essential, including product purity and residual monomer levels. Operators determine dosage through pilot-scale jar tests, fine-tuned by influent water quality. Dosing systems introduce the polymer after primary coagulants and ahead of rapid gravity or sand filters. Treated water consistently meets regulatory targets for turbidity and microbial safety.

Industry compliance standards

• US NSF/ANSI Standard 60 (Drinking Water Treatment Chemicals—Health Effects)
• EU Directive 98/83/EC (Quality of Water Intended for Human Consumption)
• China CJ/T 3028-1994 (Coagulant Aids for Drinking Water)
• WHO Guidelines for Drinking-water Quality

Typical usage ratio

• 0.2–2.0 ppm (varies with raw water turbidity and coagulant type)

Downstream process integration

• Dosing after primary coagulant application in clarifiers
• Pre-filter addition in rapid gravity or pressure filtration units
• In-line static mixing with continuous process monitoring
• Integration with automated plant control systems

Final product types

• Treated drinking water
• Potable water supplied to municipal networks
• Compliant turbidity discharge for recycled city water
• Clarified water for industrial potable use