NINGBO INNO PHARMCHEM CO.,LTD. understands that achieving the best results in water treatment hinges on precise application of chemicals. Polyacrylamide (PAM), a versatile flocculant, is no exception. Determining the correct dosage of polyacrylamide is crucial for maximizing its effectiveness in solid-liquid separation and sludge dewatering. Incorrect dosage can lead to under-performance or even adverse effects, making a scientific approach essential.

The optimal dosage of polyacrylamide is not a one-size-fits-all figure. It is influenced by several key factors specific to the water source and the treatment process. These include the type and concentration of suspended solids, the water's pH, temperature, and the presence of other chemicals. For instance, understanding the characteristics of industrial wastewater, such as its chemical composition and turbidity, is paramount. Similarly, for municipal wastewater, the organic load and sludge characteristics will dictate the required PAM dosage.

When using dry powder polyacrylamide (dry PAM) in water purification, its addition point is a critical determinant of its coagulation and precipitation effect. Practical applications show that adding PAM between one-half and two-thirds of the total flocculation reaction time often yields the best results. The optimum dosage typically falls between 0.03 and 0.4 mg/L. Dosing below this range may render its coagulant-assisting effect insignificant, while exceeding 0.4 mg/L can result in overly large alum flower particles, leading to inefficient sedimentation and potential issues in the reaction tank and sedimentation tank.

It's also important to consider the interaction with other treatment chemicals. For example, if PAM is added simultaneously with a coagulant, its coagulation-assisting effect might not be significant. If added too early, small flocs may not form, and if added too late, the aggregation and net-catching effect time might be insufficient. Therefore, the timing and sequence of PAM addition, especially when used in conjunction with coagulants or disinfectants, must be carefully managed.

For those seeking to enhance their water treatment protocols, exploring solutions like anionic polyacrylamide for wastewater or cationic polyacrylamide for sludge dewatering can provide targeted benefits. Understanding how to effectively use polyacrylamide flocculant means considering these dosage and application nuances. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality PAM products and expert technical support to help clients optimize their water treatment processes and achieve superior outcomes.