The efficacy of cationic polyacrylamide has been recognized both inside and outside the industry, especially in the flocculation precipitation of industrial wastewater. Because of its curative effect, this medicine is widely used. In sewage treatment, the treatment of colored sewage is relatively difficult.
First of all, let’s look at the treatment methods of nonferrous metal wastewater in the past. It is understood that before polyacrylamide was widely used, colored sewage was treated by activated carbon decolorization or other methods. However, cationic polyacrylamide is currently a common treatment agent for this type of sewage. Why use cationic polyacrylamide instead of other ionic polyacrylamide? The main reason is that cationic polyacrylamide is particularly excellent in flocculation and decolorization. Cationic polyacrylamide has good adsorption and bridging properties. Molecular chain extender properties can not only adsorb suspended matter, but also adsorb pigment in precipitated wastewater.
Compared with the decolorization effect of activated carbon, cationic polyacrylamide has many advantages. Only once can the chroma and suspended matter content of the wastewater meet recycling or discharge standards. This is also the reason why cationic polyacrylamide is more popular in the nonferrous wastewater treatment industry.
Polyacrylamide (PAM) is a linear polymer, chemical formula is (C3H5NO) N. It is a hard glassy solid at room temperature. The products are liquid glue, latex and white powder particles, translucent beads and flakes. Good thermal stability. Can be dissolved in water in any proportion, aqueous solution is uniform transparent liquid. After long-term storage, the solution viscosity will decrease due to slow degradation of polymer, especially when the storage conditions are poor.  Polyacrylamide, as lubricant, suspension agent, clay stabilizer, oil displacement agent, water loss reducer and thickener, has been widely used in drilling, acidification, fracturing, water plugging, cementing and secondary oil recovery, tertiary oil recovery. It is a very important oil field chemical.Learn more
Polyferric sulfate is a kind of inorganic polymer coagulant with superior performance. It is a light yellow amorphous powdery solid and easily soluble in water. 10% (mass) aqueous solution is red-brown transparent solution and hygroscopic. Polyferric sulfate is widely used in drinking water, industrial water, all kinds of industrial waste water, municipal sewage, sludge dewatering purification treatment.Learn more