Anionic Polyacrylamide APAM 5-25 Million Molecular Weight 89% Min Solid for Fertilizer Plant Wastewater Clarification

Product overview

Fertilizer manufacturing wastewater varies with the product and process. Some streams carry mineral fines or precipitates formed during treatment, while others are dominated by dissolved nutrients and salts. These streams require different treatment approaches and should not be assigned one universal polymer dosage.

APAM supports aggregation of compatible particles and microflocs after suitable pretreatment. It is evaluated to improve the separation step, not as a standalone solution for dissolved ammonia, nitrate or salinity. Where phosphate, fluoride or metals are treatment targets, the necessary reaction and residual concentration must be assessed separately.

Product benefits

Technical data

Application process

Identify the fertilizer process and characterize each wastewater stream. Complete the required neutralization, precipitation or coagulation step before testing APAM where that sequence is appropriate. Prepare the polymer solution separately, add it to the particle-bearing stream and compare floc growth and separation. Validate the selected condition with normal production and cleaning-related variations.

Grade and dosage selection

Use conductivity, pH, precipitate characteristics and coagulant history to guide grade screening. High dissolved salt content can change polymer behavior, so test with actual plant water. Compare several molecular weight and charge combinations; the highest molecular weight is not automatically optimal. Confirm the specific selected grade rather than treating the full family range as a single product specification.

Solution preparation

Prepare a 0.1–0.5% solution by mass using clean water. Add powder gradually to moving water to avoid lumps. Allow around one hour for dissolution, adjusting for grade, water quality and temperature. The TDS gives 200–400 rpm as a mixing reference; adapt mixing to the actual tank and impeller. Avoid unnecessary high shear after dissolution. A 0.1% solution contains 1 kg of product per 1,000 kg of final solution. Select the treatment dose separately through controlled trials.

Packaging storage and handling

Featured packaging is a 750 kg net big bag. Store the dry product sealed at 0–35 °C, protected from moisture and direct sunlight. The stated shelf life is two years under specified storage conditions. Reseal opened packaging and follow the current SDS for handling and spill cleanup.

Frequently asked questions