Direct factory supply of high-performance polyacrylamides and composite coagulants for process enhancement.
Anionic Polyacrylamide (APAM) is a water-soluble polymer synthesized from acrylamide subunits, configured with negatively charged carboxylate groups along its backbone. Its performance relies on molecular weight and charge density to drive flocculation, thickener settling, and fluid viscosity modification.
APAM is characterized by its high molecular weight (ranging from 5 to 25 million Daltons) and negative hydrolytic charge (10% to 40%). In aqueous solutions, these anionic chains stretch out due to electrostatic repulsion, maximizing their active surface area for contact with suspended solids.
Through electrostatic bridging and charge neutralization, APAM adsorbs onto positively charged mineral particles. The long polymer chains loop and tail into the solution, capturing multiple particles simultaneously to form large, rapid-settling macro-flocs (agglomerates).
Our optimized synthesis process ensures uniform polymer block sequence distributions. This molecular configuration yields high shear resistance, allowing the dissolved APAM chains to retain their structural integrity in turbulent industrial pump loops.
Standard classification and physical properties of Wuxi BS Anionic Polyacrylamide grades.
| Grade Type | Molecular Weight (Million Daltons) | Degree of Hydrolysis (%) | Solid Content (%) | Dissolving Time (Minutes) | Primary Industrial Application |
|---|---|---|---|---|---|
| BS-APAM-High MW | 20 - 25 | 20 - 30 | ≥ 88% | ≤ 60 | Enhanced Oil Recovery (EOR), Coal Washing, Mineral Tailings Thickeners |
| BS-APAM-Medium MW | 12 - 18 | 15 - 25 | ≥ 88% | ≤ 50 | Industrial Wastewater Treatment, Papermaking retention aid, Sugar Clarification |
| BS-APAM-Low MW | 5 - 10 | 10 - 15 | ≥ 88% | ≤ 45 | Drilling fluid viscosity modifier, agricultural soil stabilization |
APAM functions as a critical processing agent across high-capacity industrial, municipal, and mineral sectors.
In Industrial Sewage Treatment, APAM is utilized to flocculate negatively charged organic and inorganic suspended particles. It performs at low dosages (typically 1 to 5 ppm) in treating metal finishing wastes, chemical process effluents, and municipal sludge dewatering setups.
For Petroleum and Gas Industries, the polymer is used as a rheology modifier in water injection systems (polymer flooding) to improve sweep efficiency in EOR. In drilling fluids, APAM coats clay particles to stabilize wellbores and minimize fluid loss into surrounding formations.
In the Mining Industry, coal and mineral processing plants utilize APAM to rapidly settle fine tailings slurry in thickeners. This accelerates water recovery loops, enabling continuous plant operations and reducing the size requirements of environmental tailings ponds.
Founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. (formerly Wuxi Bisheng Water Treatment Agent Co., Ltd.) is a manufacturer and developer of water treatment chemistry. With 27 years of experience in polymer engineering, we operate production lines that export globally through an established distribution network.
Our facilities feature a dedicated laboratory for raw water diagnostic testing, allowing us to customize molecular weight and charge densities to match the customer's specific mineral and industrial wastewater profiles.
Tailored manufacturing, private-label packaging, and customized chemical formulations for international buyers.
Formulation of custom APAM polymers to match dynamic viscosity and shear rate requirements in high-salinity and high-temperature environments.
Export-grade packaging options including 25kg multi-wall paper bags, 750kg jumbo bags, and customized bulk packaging compliant with hazardous material shipping regulations.
Our centralized logistics hub maintains a 20,000-ton buffer stock, helping stabilize shipping lead times during seasonal freight fluctuations.
Decades of chemical manufacturing and engineering developments at Wuxi BS.
Factory established to produce municipal water coagulants and basic flocculating agents.
Re-organized as Wuxi Bisheng Water Treatment Agent Co., Ltd. and upgraded to automated reactor lines.
Obtained international export compliance certificates, initiating distribution to Southeast Asia and Europe.
Annual export sales reached USD $10,000,000 milestone across 40+ countries.
Officially established the specialized direct-export division to support international industrial water buyers.
Expert answers to common technical, shipping, and application queries.
High concentrations of divalent ions (such as calcium and magnesium) can shield the negative charge on the APAM chain. This causes the polymer to coil, reducing its viscosity and flocculation efficiency. For highly saline conditions, we recommend using custom salt-tolerant APAM grades.
Dry APAM powder is typically prepared as a stock solution at a concentration of 0.1% to 0.3% w/v. Dissolution requires clean water and gentle mechanical agitation at 200–400 rpm for 60 minutes to prevent high-shear degradation of the polymer chains.
Keep the product in its original sealed packaging in a cool, dry, well-ventilated warehouse. Dry APAM is highly hygroscopic; exposure to moisture or high humidity will lead to caking and direct degradation of active polymer content.
Yes. Every export batch is tested in our quality control laboratory. We issue a Certificate of Analysis (COA) specifying molecular weight, hydrolysis degree, dissolution rates, and monomer residues to ensure trace compliance with international environmental standards.
Contact Wuxi BS engineers to receive dosage recommendations, request product samples, or obtain shipping rates for bulk orders.
Complete product portfolio of dry-powder and liquid coagulants/flocculants manufactured at our Wuxi plant.
BS Water