The Role of Polyacrylamide in Sewage Treatment Process
The role of polyacrylamide in the sewage treatment process. The main role of polyacrylamide in the sewage treatment process is separation, precipitation and coagulation and flocculation. Coagulation refers to adding certain dissolved salts to water to cause small suspended solids or colloidal particles in the water to adsorb and separate from each other to form larger particles, which then settle out of the water. Flocculation refers to the process in which particles adhere to each other due to the adsorption and bridging effect of polymer substances. The destabilized colloidal particles coalesce with each other, which is called cohesion.
I. Introduction
Briefly describe the importance of sewage treatment and the challenges it faces.
Introduce the key role of polyacrylamide in sewage treatment, as well as the purpose and main content of the article.
2. Basic properties of polyacrylamide
Introduce the chemical structure, molecular properties and physical state of polyacrylamide.
Describe its solubility, stability and other physical and chemical properties.
3. Application of polyacrylamide in wastewater treatment
Describe the common application scenarios of polyacrylamide in sewage treatment, such as domestic sewage, industrial wastewater, etc.
Analyze its usage and effects in different treatment processes.
4. The mechanism of action of polyacrylamide in wastewater treatment
Explain in detail the adsorption effect of polyacrylamide in wastewater treatment.
Describe the catalytic oxidation reaction and coagulation of polyacrylamide, as well as its role in improving water cleanliness and removing suspended particles.
5. Evaluation of the effect of polyacrylamide in wastewater treatment
Through specific cases and experimental data, the actual effect of polyacrylamide in wastewater treatment is demonstrated.
Analyze its advantages in improving processing efficiency and reducing processing costs.
6. Conclusion
The full text is summarized, emphasizing the important role of polyacrylamide in sewage treatment and its research value.
Prospects and suggestions for the application of polyacrylamide in wastewater treatment are put forward.