How does cationic polyacrylamide emulsion remove organic matter from wastewater?

Cationic polyacrylamide emulsion (CPAM emulsion) is an important water treatment agent, generally used in wastewater treatment projects. It mainly removes organic matter in wastewater through mechanisms such as coagulation, precipitation and adsorption.

The cationic part in the cationic polyacrylamide emulsion adsorbs and interacts with the anionic organic substances in the wastewater to form macromolecular complexes or aggregates. This kind of aggregate has a large molecular weight and volume, and quickly aggregates to form clusters in wastewater. Through coagulation, suspended solids, colloids and organic substances in wastewater can be effectively aggregated to facilitate subsequent precipitation and separation.

Once the pollutants in the wastewater are condensed into clusters by the Cationic polyacrylamide emulsion, their density increases, and gravity causes them to settle to the bottom of the wastewater to form sludge. This precipitation is a commonly used method in wastewater treatment, which can effectively remove suspended solids, colloids and organic matter in wastewater and improve water quality.

The polymer in the cationic polyacrylamide emulsion has strong adsorption capacity. They can change the surface properties of suspended solids and organic matter in wastewater, increase their surface activity, and thereby enhance the adsorption with organic matter in wastewater. This adsorption helps to adsorb the organic matter in the wastewater to the surface of the suspended matter to facilitate subsequent treatment and removal.

In wastewater, organic matter is often charged and forms a colloid or dispersion system. The cations in the cationic polyacrylamide emulsion can form ion pairs with the anionic organic substances in the wastewater, neutralizing the charges of the organic substances, reducing their mutual repulsive force, and promoting aggregation and precipitation.

Cationic polyacrylamide emulsion mainly removes organic substances from wastewater through mechanisms such as coagulation, precipitation, adsorption and charge neutralization. These functions work together to effectively improve the efficiency and quality of wastewater treatment, protect the water environment, and meet the requirements of environmental protection and sustainable development. In practical applications, we need to reasonably select the type and use method of cationic polyacrylamide emulsion based on the characteristics and treatment requirements of wastewater to achieve better treatment results.