NINGBO INNO PHARMCHEM CO.,LTD. provides guidance on the crucial aspect of optimizing PolyDADMAC dosage for achieving the best results in water and wastewater treatment. While PolyDADMAC is highly effective, using the correct dosage is paramount to ensuring efficiency, cost-effectiveness, and avoiding potential adverse effects.

Determining the optimal dosage of PolyDADMAC is typically an empirical process that depends heavily on the specific characteristics of the water or wastewater being treated. Factors such as turbidity, pH, temperature, the concentration and type of contaminants, and the presence of other chemicals in the water all influence the required dosage. The most reliable method for determining the ideal dose is through a 'jar test'. Jar tests involve preparing multiple samples of the water to be treated, each with a different concentration of PolyDADMAC. By observing the floc formation, settling rates, and the clarity of the treated water in each sample, one can identify the dosage that yields the best outcome.

Generally, PolyDADMAC is applied in diluted concentrations, often ranging from 0.5% to 5% based on solid content, depending on the application. For instance, in some filtration applications, dosages might be as low as 0.2 to 2 ppm, while in broader wastewater clarification, dosages can range from 1 to 10 ppm. It's important to note that adding PolyDADMAC at the correct dosing spot and ensuring adequate mixing velocity is crucial. Proper mixing ensures that the polymer is evenly distributed throughout the water, allowing it to interact effectively with contaminants and form stable flocs. Insufficient mixing can lead to localized high concentrations and poor floc formation, while excessive mixing can break down already formed flocs.

In many treatment schemes, PolyDADMAC is used in conjunction with other chemicals, such as inorganic coagulants like Polyaluminum Chloride (PAC). In such cases, the sequence and dosage of each chemical need careful consideration. Often, PolyDADMAC is added after the primary coagulant to enhance flocculation. NINGBO INNO PHARMCHEM CO.,LTD. strongly advises clients to consult their technical data sheets and perform on-site testing to establish the most effective and economical dosage for their specific needs, ensuring optimal performance and sustainability in their water treatment operations.