Wholesale Anionic Polyacrylamide (APAM) Suppliers in China - Factory Direct Flocculant for Water Treatment Solutions Manufacturer, Factories

Anionic Polyacrylamide (APAM) is a versatile water-soluble polymer known for its negatively charged molecular chains (-COO⁻). This exceptional flocculant is primarily used in high-turbidity applications, such as municipal sewage treatment, papermaking wastewater management, and mining wastewater disposal. By utilizing the electrical neutralization + adsorption bridging effect, APAM effectively interacts with positively charged suspended solids and colloidal particles, facilitating rapid coagulation and precipitation. As a leading **China** producer, we pride ourselves on delivering high-quality Anionic Polyacrylamide to our clients. Our **factory** ensures strict quality control and efficient production processes, making us a trusted choice for **suppliers** looking for reliable flocculants to enhance their water treatment solutions

Product Description

Core Features

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%.

Anionic polyacrylamide (APAM) (1)
Anionic polyacrylamide (APAM) (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 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

What is the molecular weight range of anionic PAM, and how does it affect performance?
Anionic PAM (APAM) has an adjustable molecular weight ranging from 12 million to 20 million. Higher molecular weight results in longer polymer chains, which enhances bridging flocculation, improves settling speed, and increases the turbidity removal rate — achieving ≥ 95% removal in high-turbidity wastewater (up to 5000 NTU).
How long does anionic PAM take to dissolve, and what is the recommended preparation method?
Powder anionic PAM dissolves within 60 minutes at room temperature. It is recommended to slowly add the powder to clean water while stirring continuously to avoid clumping. Dissolving in warm water (below 50°C) can accelerate the process. The prepared solution should be used promptly to maintain optimal performance.
Can anionic PAM be used together with PAC (Polyaluminum Chloride)?
Yes. Anionic PAM works synergistically with PAC. PAC acts as a coagulant to destabilize fine particles, while anionic PAM acts as a flocculant to bridge and aggregate the destabilized particles into larger, faster-settling flocs. This combination is widely used in municipal sewage, paper mill wastewater, and industrial effluent treatment for superior results.
What pH range is anionic PAM effective in, and is it suitable for acidic mine wastewater?
Anionic PAM is effective across a pH range of 5–10, making it suitable for both acidic and alkaline environments. It performs stably in mine acidic wastewater (low pH) as well as in papermaking black liquor (high alkalinity), without corroding pipes or treatment equipment.
What are the packaging options and shelf life for anionic PAM?
Anionic PAM is available in 25 kg woven bags (lined with plastic inner bag) or 1-ton jumbo bags. Custom English labeling or customer logo packaging can be arranged. When stored in a cool, dry location away from direct sunlight and at temperatures ≤ 35°C, the shelf life of the unopened solid product is 2 years.
Is anionic PAM suitable for drinking water treatment applications?
Yes, a Drinking Water Grade version of anionic PAM is available. It meets stricter heavy metal limits — for example, Al₂O₃ content ≥ 29%, Fe ≤ 0.2%, As ≤ 0.0001%, and Hg ≤ 0.00001% — ensuring safety compliance for potable water treatment applications in accordance with relevant standards.

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