Water treatment is a critical process for both environmental protection and public health. Polyacrylamide (PAM) plays a significant role as a highly effective flocculant in various water purification and wastewater treatment applications. NINGBO INNO PHARMCHEM CO.,LTD. provides a range of polyacrylamide products that are essential for achieving efficient solid-liquid separation in these processes.

The core function of a flocculant is to aggregate tiny suspended particles in water into larger, heavier flocs that can be easily removed through sedimentation, filtration, or centrifugation. PAM excels in this role due to its long polymer chains and its ability to interact with suspended solids. Depending on the nature of the contaminants and the water matrix, different types of polyacrylamide are employed:

Anionic Polyacrylamide (APAM): APAM is widely used for treating suspended matter that carries a positive charge, commonly found in industrial wastewater and high-turbidity raw water. In water treatment, APAM helps to neutralize positively charged colloidal particles, promoting their aggregation. It is also effective in processes like red mud settling in the mining industry.

Cationic Polyacrylamide (CPAM): CPAM is particularly effective for treating sludge, which typically carries a negative charge. It is extensively used in sludge dewatering in municipal wastewater treatment plants and industrial processes like papermaking and leather manufacturing. The positive charges on CPAM attract and neutralize the negative charges on sludge particles, facilitating water release and reducing sludge volume.

Nonionic Polyacrylamide (NPAM): While less common in general water treatment compared to its charged counterparts, NPAM can be used in specific applications where charge neutralization is not the primary mechanism, relying more on bridging effects for flocculation. It is sometimes preferred in acidic wastewater treatment.

The selection of the appropriate polyacrylamide grade is crucial for optimal performance. Factors such as pH, the nature of the suspended solids, and the desired outcome (e.g., clarified water, dewatered sludge) dictate the choice of APAM, CPAM, or NPAM. NINGBO INNO PHARMCHEM CO.,LTD. offers expert guidance and a comprehensive range of polyacrylamide products to ensure effective water treatment and sludge dewatering solutions for diverse industrial needs.