CPAM Emulsion For Sewage Treatment

There are many kinds of CPAM sewage emulsion uses (emulsion sewage uses) in the whole processes regarding high content water of sludge and excess sludge.

CPAM for sludge agent is always used for dewatering treatment and concentration in high content water sludge treatment. According to cationic emulsion polyacrylamide, this type of CPAM for sludge, especially in concentrating high content water of sludge has a good performance. This is the reason that cationic emulsion polyacrylamide has high efficiency in filtering water in the concentrating process by machine.

Because the structure of CPAM sewage emulsion is cross-linked polyacrylamide and has high active content, the emulsion sewage uses of polyacrylamide is suitable for a full range of sludge.

The chemical formula of emulsion sewage uses is (C3H5NO)n and the appearance of CPAM sewage emulsion is white emulsion. The content of cationic emulsion polyacrylamide is 48%, the molecular weight is 15 - 30, the specific gravity is 1.0 and the pH value (1% aqueous solution) is 6.5 - 7.5

For oily wastewater with a high degree of emulsification (such as emulsified oil droplets with a diameter < 10μm), the surface of the oil droplets is wrapped with a stable emulsifier film (mostly negatively charged surfactants). The CPAM for sludge agent can disrupt the charge balance of the emulsifier film, causing the emulsification film to rupture. After the oil droplets lose their stable protection, they collide with each other and merge into larger oil droplets, which are then aggregated and separated through cationic emulsion polyacrylamide. Cationic emulshion polyacrylamide efficiently purifies oily wastewater through synergistic effects such as charge neutralization to eliminate repulsive forces, long chain bridging to form large flocs, entrapment of fine particles, and demulsification to stabilize oil droplets. 

In the emulsion form, cationic emulsion polyacrylamide is pre dispersed in the medium, which endows it with better solubility and dispersibility. When the emulsion is added to the wastewater, it can dissolve quickly and come into contact with the oil droplets, accelerating the speed of charge neutralization and adsorption bridging. 

The particle size of the emulsion is small (usually from a few microns to tens of microns), increasing the collision probability with the oil droplets and enabling the flocculation reaction to occur more rapidly and efficiently.

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