Anionic Polyacrylamide (APAM) – Flocculant for Water Treatment

Basic Information

Chemical Name Anionic polyacrylamide
CAS No. 9003-05-8
HS Code 38260000
Molecular formula (C₃H₅NO)ₙ

Product Positioning

Anionic Polyacrylamide (APAM for short) is a water-soluble polymer with negatively charged molecular chains (-COO⁻). Through the "electrical neutralization + adsorption bridging" effect with positively charged suspended solids (such as sediment and colloids) and colloidal particles (such as iron hydroxide) in water, it rapidly coagulates and precipitates, and is the core flocculant for high-turbidity scenarios such as municipal sewage, papermaking wastewater, and mining wastewater.

product details

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%.

• Strong Tolerance: Resistant to acid and alkali (pH 5-10), resistant to acid and alkali (resistant to dilute acid/alkali), has a stable effect on papermaking black liquor (high alkalinity) and mine acidic wastewater (low pH), and does not corrode pipes or equipment.

Technical 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 10mg/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).

01020304

Packaging and Storage

• Solid powder: 25kg 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).