Some experiences in the use of cationic polyacrylamide

Tips and Key Considerations When Using Cationic Polyacrylamide: Practical Experiences from Zhengzhou Tianhe Water Purification (Published on March 12, 2014) | Views: 5


Practical Experience in Using Cationic Polyacrylamide

I. Overview of Cationic Polyacrylamide

Cationic polyacrylamide is a white powder that exhibits excellent flocculation properties, making it widely used in water treatment, metallurgy, papermaking, petroleum, chemical industry, textiles, and mineral processing. As a linear polymer, it dissolves in water and has a molecular weight ranging from 600,000 to 18 million. It can be dissolved in methanol and ethanol but is insoluble in organic solvents like ketones, esters, and hydrocarbons. In acidic or alkaline environments, it carries a positive charge, effectively coagulating and precipitating suspended particles in wastewater.

II. Key Points for Effective Use

Here are some important considerations we have gathered through practical use:

1. Always dissolve cationic polyacrylamide before use. A properly prepared aqueous solution ensures optimal performance.

2. When dissolving, add the powder gradually while continuously stirring. Ensure you stir for at least 30 minutes to allow full dissolution.

3. Dosage typically ranges between 1-2 g or 3-5 g per ton of water, depending on the application.

4. Stirring during use is essential. Plan the installation location in advance to ensure smooth operation.

5. Use clean water, such as tap water, for dissolution. Avoid using sewage or contaminated water. Room temperature is ideal; below 5°C, dissolution is slow. Temperatures above 40°C may cause polymer degradation, reducing effectiveness. Avoid strong acids, bases, or high-salt water when preparing solutions.

6. The standard dosage is 0.1% to 0.3%, meaning 1g to 3g of the solution is added per liter of water.

7. Avoid contact with iron metals, as this can cause the cationic polyacrylamide to lose its effectiveness.

Zhengzhou Tianhe Water Purification Material Factory specializes in manufacturing various types of polyacrylamide, including cationic, anionic, non-ionic, and zwitterionic grades. We provide high-quality products and cost-effective solutions tailored to your needs. Our technical team is always available to assist you with any questions or requirements. We look forward to building long-term partnerships with our clients.

For more information, visit our website or contact us directly.

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