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China Anionic Polyacrylamide (APAM) Suppliers - High-Efficiency Flocculant from Quality Factory for Water Treatment
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China Anionic Polyacrylamide (APAM) Suppliers - High-Efficiency Flocculant from Quality Factory for Water Treatment
Anionic Polyacrylamide (APAM) is a highly effective water-soluble polymer distinguished by its negatively charged molecular chains (-COOâ»). This powerful flocculant is specifically designed for high-turbidity applications, including municipal sewage treatment, papermaking wastewater management, and mining wastewater remediation. By utilizing the electrical neutralization + adsorption bridging mechanism, APAM efficiently interacts with positively charged suspended solids and colloidal particles, such as iron hydroxide, enabling rapid coagulation and sedimentation, As a leading choice among China suppliers and manufacturers, our APAM products are crafted in a state-of-the-art factory to ensure superior quality and performance. Experience the benefits of using Anionic Polyacrylamide in your wastewater treatment processes and improve efficiency while partnering with trusted China suppliers dedicated to meeting your needs
Precise Molecular Weight Control: The molecular weight of anionic PAM ranges from 12 million to 20 million (adjustable), with long and uniform molecular chains, showing significant flocculation effects on high-turbidity wastewater (turbidity ≤ 5000 NTU), and the turbidity removal rate is ≥ 95%.
Fast Dissolution, Low Residue: The dissolution time of powder PAM ≤ 60 minutes (at room temperature), after dissolution, the flocs are large and settle quickly (settling speed is 25%–40% faster than conventional products), and it works better when used in combination with PAC. Water insoluble matter ≤ 0.5%.
Strong Tolerance: Resistant to acid and alkali (pH 5–10), has a stable effect on papermaking black liquor (high alkalinity) and mine acidic wastewater (low pH), and does not corrode pipes or equipment.
Technical Parameters
Parameter
Index
Industrial Grade
Drinking Water Grade
Al₂O₃ Content, % ≥
28.0
29.0
Basicity, %
20~98
45.0~90.0
Mass fraction of insoluble substances, % ≤
0.4
0.1
pH (10g/L aqueous solution)
3.5~5.0
3.5~5.0
Mass fraction of Fe, % ≤
1.5
0.2
Mass fraction of As, % ≤
0.0005
0.0001
Mass fraction of Cr, % ≤
0.005
0.0005
Mass fraction of Hg, % ≤
0.00005
0.00001
Mass fraction of Pb, % ≤
0.002
0.0005
Mass fraction of Cd, % ≤
0.0005
0.0001
Application Area
Municipal Sewage: Flocculation in the primary sedimentation tank and secondary sedimentation tank of urban domestic sewage treatment plants to reduce SS (suspended solids) to below 10 mg/L.
Paper Mill Wastewater: Delignification of pulping black liquor, white water recovery (fiber collection rate increased by 15%–20%).
Mine / Coal Washing Wastewater: Clarification of coal slurry water (collection rate of flotation clean coal increased by 8%–12%), flocculation and sedimentation in tailings pond.
Building Materials Wastewater: Production wastewater from cement plants and ceramic factories removes suspended solids (turbidity reduced from 2000 NTU to 50 NTU).
Packaging and Storage
Solid Powder: 25 kg woven bag lined with plastic bag / 1 ton jumbo bag (customizable English / customer logo packaging available).
Storage Conditions: Store in a cool, dry place (temperature ≤ 35°C), avoid direct sunlight; the shelf life of the solid is 2 years (unopened).
Frequently Asked Questions
Q
What is the molecular weight range of anionic PAM (APAM), and why does it matter?
Anionic PAM has a molecular weight range of 12 million to 20 million (adjustable). Higher molecular weight means longer polymer chains, which improves bridging between suspended particles, resulting in larger, faster-settling flocs and a turbidity removal rate of ≥ 95% — even in high-turbidity wastewater up to 5000 NTU.
Q
How long does anionic PAM powder take to dissolve, and how should it be prepared?
Anionic PAM powder dissolves in ≤ 60 minutes at room temperature. It is recommended to slowly add the powder to water while stirring to avoid clumping. For best results, prepare a 0.1%–0.3% solution and use it in combination with PAC (Polyaluminum Chloride) to enhance flocculation performance.
Q
What pH range is anionic PAM effective in, and can it handle extreme wastewater conditions?
Anionic PAM is effective across a wide pH range of 5–10, making it suitable for both acidic and alkaline wastewater. It performs stably in papermaking black liquor (high alkalinity) and mine acidic wastewater (low pH), and it does not corrode pipes or equipment.
Q
What industries can use anionic polyacrylamide for wastewater treatment?
Anionic PAM is widely used in municipal sewage treatment, paper mill wastewater (black liquor and white water recovery), mine and coal washing wastewater clarification, and building materials production wastewater (cement and ceramic factories). It effectively reduces suspended solids and turbidity across all these applications.
Q
What packaging options are available, and what are the storage requirements?
Anionic PAM is available in 25 kg woven bags (lined with plastic bags) or 1-ton jumbo bags. Custom English labeling and customer logo packaging are also available. It should be stored in a cool, dry environment at temperatures ≤ 35°C, away from direct sunlight. The shelf life of unopened solid product is 2 years.
Q
What is the difference between Industrial Grade and Drinking Water Grade anionic PAM?
Drinking Water Grade anionic PAM has stricter purity requirements, including higher Al₂O₃ content (≥ 29%), lower insoluble matter (≤ 0.1%), and significantly lower heavy metal limits (e.g., Fe ≤ 0.2%, Pb ≤ 0.0005%, Hg ≤ 0.00001%). Industrial Grade is suitable for general wastewater treatment, while Drinking Water Grade is required for applications involving potable water safety standards.
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