Can Polyacrylamide And Polyaluminium Chloride Be Used Together?

In water purification, there are two primary products: polyaluminium chloride and polyacrylamide. Those with experience know that polyacrylamide is an organic flocculant, whereas polyaluminium chloride is an inorganic flocculant. Organic and inorganic represent opposing concepts. But within the scope of water purification, what distinguishes them? Can they be used together? Victor Polyacrylamide Manufacturer clarifies this for you.
 

In truth, when treating wastewater, the choice of water treatment agent hinges on its efficacy. A single treatment agent often struggles to achieve the desired results. Therefore, using polyacrylamide and polyaluminium chloride concurrently can more effectively resolve wastewater issues. But one might think, ‘Why not simply add both simultaneously?’ This approach is inadvisable. When using polyacrylamide and polyaluminium chloride together, careful attention must be paid to the sequence of addition and the interval between them. This point warrants particular caution.
 

Generally speaking, polyaluminium chloride acts as a coagulant. It reacts with wastewater very rapidly and requires thorough, vigorous mixing after addition. Polyacrylamide, however, functions as a flocculant. During mixing, excessive agitation must be avoided to prevent disruption of the flocs already formed. Therefore, when employing both polyaluminium chloride and polyacrylamide together, it is advisable to add the polyaluminium chloride first, followed by the polyacrylamide. It is advisable to conduct preliminary trials to determine the optimal sequence of addition. Furthermore, the timing interval, proportion, and quantity must be established through a rigorous methodology. Under no circumstances should polyaluminium chloride and polyacrylamide be used directly together. Doing so will result in suboptimal wastewater treatment outcomes, compromising treatment efficacy and increasing operational costs.
 

　　Additionally, it is important to note that the dosage of Victor polyacrylamide products for wastewater purification varies seasonally and requires adjustment. For instance, the dosage required in winter is greater than in summer. This is because polyacrylamide reacts more slowly in colder winter water temperatures, necessitating a higher dosage. Conversely, in summer, higher water temperatures accelerate reaction rates, necessitating reduced dosage. Crucially, when treating domestic sewage, one must also account for variations in wastewater sources. The onset of summer typically brings increased flushing volumes, while higher rainfall during this season further impacts dosage requirements. Does this explanation clarify matters for you?