Cationic Polyacrylamide, also Cationic PAM, is an important polymer that plays an important role in the field of water treatment. It is polymerized from acrylamide monomer and various cationic monomers, which has cationic groups and good flocculation and sedimentation properties. In this article, we will introduce the application of Cationic PAM in different fields.
Cationic PAM in Domestic Sewage and Organic Wastewater Treatment
Cationic PAM is used for the treatment of daily sewage and organic wastewater. The product is positively charged and is useful for flocculation deposition of wastewater with negative charge in suspended particles. For example, alcohol wastewater, paper wastewater, municipal sewage, beer wastewater, MSG factory wastewater, sugar wastewater, wastewater with high organic content, feed wastewater, textile printing and dyeing wastewater. The effect of using Cationic PAM is several times or dozens of times that of anionic, nonionic polyacrylamide or inorganic salts, because these wastewaters are negatively charged.
Cationic PAM contains positively charged groups in its molecular structure, giving it good cationic properties. This allows CPAM to combine with negatively charged suspended particles in water and rapidly form larger aggregates, effectively promoting flocculation and sedimentation of suspended solids. In sewage treatment, CPAM is widely used as a flocculant, which can rapidly condense small particles suspended in sewage to form larger sediments for subsequent solid-liquid separation treatment.
In addition, Cationic Polyacrylamide can also be used as a settling agent to help accelerate the settling speed of suspended particles in water. In the sedimentation tank of a wastewater treatment plant, adding an appropriate amount of CPAM can promote the rapid settling of solid particles, reduce the processing time and improve the processing efficiency. This not only reduces the processing cost, but also saves resources.
Cationic PAM in Sludge Dewatering
Cationic Polyacrylamide is also widely used to improve the dewatering performance of sludge. Sludge produced in the water treatment process usually contains high water content, which is difficult to treat and dispose of. By adding CPAM, the particle structure in the sludge is improved and the water content is reduced, thus facilitating the subsequent dewatering and curing treatment, reducing the volume of sludge and facilitating subsequent treatment and disposal.
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Cationic PAM Usage
The following points should be strived for in the preparation of CPAM:
- It is advisable to use clean water free of salts and metallic inclusions;
- The use of lukewarm water at about 40°C, but not more than 60°C, can accelerate the dissolution of the flocculant;
- Prepare to the appropriate concentration, because too thick will affect the flocculation effect and too thin may lead to insufficient dosage.
Cationic PAM Storage Methods and Transportation
- Cationic Polyacrylamide storage should be kept sealed, dry, protected from light, to prevent high temperature, to avoid moisture absorption, degradation and deterioration.
- Cationic PAM should not be stored in direct contact with metal containers.
- CPAM should not be stored for too long, otherwise it will lead to degradation. The more diluted the concentration, the shorter the validity period in general.
Overall, Cationic Polyacrylamide plays an important role in water treatment. In the future, with the continuous progress of science and technology, the application prospects of Cationic PAM will be more broad, and make greater contributions to the protection of water resources and sustainable development. If you need Industrial Water Treatment Chemicals, welcome to contact us!