Polyacrylamide flocculant is a white or light yellow powder of organic polymer, can be divided into cationic, anionic and non-ionic type. So what are the problems that are often encountered in sewage treatment?
1. Due to the high content of organic matter, the nitrification reaction is limited and the ammonia nitrogen value increases. The solution to this problem is to stop the suffocating water and open the inner and outer circulation. Stop pressing mud to ensure sludge concentration. If organic material causes the expansion of non-filamentous bacteria, polymeric ALCL and polyacrylamide flocculants should be added to promote sludge flocculation.
2. Excessive ammonia nitrogen caused by sludge problems. Excessive sludge extrusion and insufficient sludge reflux can reduce the age of sludge and increase the value of ammonia nitrogen. Treatment method: reduce water intake and add similar sludge. When the two are combined, the effect is even better.
3. Sudden increase of ammonia nitrogen will lead to excessive ammonia nitrogen. This is usually when the industrial sewage enters the domestic sewage network, the ammonia concentration of the intake rises, the original nitrogen removal system collapses, and the ammonia nitrogen of the effluent exceeds the standard. Treatment method: When the PH value is guaranteed, the ammonia nitrogen concentration of the system decreases.
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