Cationic Polyacrylamide

Cationic polyacrylamide is a highly reactive flocculant capable of coagulating numerous impurities. Upon adsorption, it forms hydrogen bonds. It possesses properties including decolourisation, dehydration, oil removal, contaminant elimination, and binding. Consequently, it is suitable for municipal sewage, industrial effluent, and chemical wastewater treatment. Cationic polyacrylamide is commercially available in two forms: solid granular and liquid solution. Currently, solid polyacrylamide is more favoured domestically. Liquid CPAM is less common due to its higher freight costs. Its specialised form necessitates transport via tankers. Solid polyacrylamide boasts a shelf life of up to two years, whereas liquid CPAM has a shelf life of less than six months.
 

 

• Polyacrylamide molecules possess cationic properties, exhibiting strong flocculation capabilities. Minimal dosage yields pronounced treatment effects.
• Demonstrates excellent solubility, forming large flocs in wastewater with rapid settling rates. Its purification efficacy surpasses other water-soluble treatment agents by two to threefold.
• The amide exhibits minimal corrosiveness and facilitates straightforward operation, thereby reducing the workload for personnel.
• It demonstrates high adaptability, being minimally affected by pH levels and water temperature. The treated water consistently meets national water purification standards.

       First, take samples of the wastewater. Then, conduct beaker tests to determine the optimal pH range and dosage of cationic polyacrylamide, ensuring the best water purification results. Prior to purification, prepare polyacrylamide as a 0.01% concentration solution. Add this to the wastewater treatment tank whilst continuously stirring and observing to determine the appropriate dosage of cationic polyacrylamide, making adjustments as necessary. Crucially, avoid excessive dissolution temperatures; maintain around 50°C. Higher temperatures may cause polymer molecular weight degradation, diminishing purification efficacy. Ensure uniform stirring speed—excessive velocity risks breaking molecular chains. Keep the solution free from iron contact; utilise stainless steel, aluminium, or plastic containers.