Practical applications of polyacrylamide

Practical applications of polyacrylamide
Polyacrylamide stands presently as a significant organic polymer flocculant within industry. Extensively employed in pulp and paper production, oil exploration, sludge dewatering, municipal wastewater management, industrial wastewater treatment, raw water purification, and industrial solid-liquid separation procedures, it significantly enhances sedimentation, clarification, air flotation, concentration, and dewatering rates, thereby augmenting solid-liquid separation efficiency.
Function: Functions encompass dehydration, adsorption, turbidity removal, adhesion, and others, with exceptional flocculation efficacy.
Application area:
1. Employed for flocculation and sedimentation of suspended solids in suspensions, particularly suitable for flocculation and sedimentation of suspended solids in acidic or mildly acidic materials. The most suitable apparatus are sedimentation tanks, high-efficiency air flotation tanks, etc.
2. The filtration equipment utilized for dewatering activated sludge in sewage treatment plants and sludge in water treatment plants encompasses centrifuges, belt filter presses, plate and frame filter presses, etc. The reactions in product treatment involve swift coagulation speed and sludge water separation.
3. Filter aids and sizing agents for paper mills and process production.
4. It serves as a thickener in building materials for waterproofing purposes. The thickening effect is superior with anionic polyacrylamide. Common raw materials for construction adhesives comprise polyvinyl alcohol, acrylamide, polyacrylamide, etc. Acrylamide is toxic and unsuitable for making glue. Opt for polyacrylamide. PAM possesses ultra-high viscosity and excellent water retention due to its unique water molecule structure.
5. Mud treatment in the construction industry: Construction pile driving, tunnels, and caves all generate a substantial amount of mud, which contains a considerable quantity of suspended fine mud particles. Polyacrylamide is utilized as a mud water separation agent in infrastructure construction to enhance flocculation and sedimentation effects, and better promote mud water separation. Polyacrylamide, as an external additive for concrete, can improve the interaction between concrete particles, thereby increasing the strength and toughness of concrete. PAM primarily plays a role in flocculation, water retention, thickening, bonding, and smoothing in building materials such as concrete, putty powder, and mortar.
Instructions for utilizing polyacrylamide:
The optimal dosage can be ascertained by adjusting the concentration of chemicals through experiments based on diverse water quality. Solid products necessitate dissolution and dilution prior to addition. The dosage fluctuates for different types of wastewater, and the specific dosage is contingent upon flocculation testing.