The main sources of papermaking wastewater are waste water in the material preparation section, the cooking section, the pulping section, the bleaching wastewater and the waste water produced in the waste paper recycling process.
Papermaking wastewater will cause serious pollution to the water environment, resulting in the death of fish and shrimp, but also to the soil, groundwater pollution, harm human health.
Papermaking wastewater treatment with polyacrylamide cationic polyacrylamide generally selected, as papermaking wastewater flocculation precipitation or sludge dehydration, for polyacrylamide ion degree is not very high general 20-30 can be used in the process of papermaking sewage sludge to use polyacrylamide product selection, usually biochemical treatment of papermaking wastewater used cationic polyacrylamide, and matter Chemical anionic polyacrylamide, for special requirements to use emulsion polyacrylamide, in the actual operation to carry out the selection of agents, in the paper waste water treatment process of polyacrylamide and PAC chloride often used together, to help save costs and reduce the waste of resources in the actual operation.
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