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Three Major Elements Affecting The Dosage of Polyacrylamide

2023-11-17 11:41

    Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. It is a hard glassy solid at room temperature, and the products include glue, latex and white powder, translucent beads and flakes. Good thermal stability. Can be dissolved in water in any proportion, and the aqueous solution is a uniform transparent liquid. Long-term storage will be due to the slow degradation of polymers and make the solution viscosity decline, especially in the storage and transportation conditions are poorer more obvious. As a lubricant, suspending agent, clay stabilizer, oil repellent, water loss reduction agent and thickener, polyacrylamide is widely used in drilling, acidizing, fracturing, water plugging, well cementing and secondary and tertiary oil recovery, and it is a kind of extremely important oilfield chemicals.

    Polyacrylamide has excellent flocculation and sedimentation properties, and can effectively coagulate suspended matter, turbidity substances, organic pollutants and heavy metal ions in water. It promotes the aggregation of tiny particles in sewage and the formation of larger flocs, which is conducive to sedimentation and separation. Adding polyacrylamide can improve the efficiency and quality of water treatment. How much polyacrylamide is needed for one ton of water? This question is practically impossible to give accurate data. Of course, we can try to imagine that the purpose of asking this question is mainly concerned about the cost of polyacrylamide, and wish to know what the proportion of polyacrylamide should be added in practice.

    There are three factors that affect the dosage of polyacrylamide:

    (1). Water quality characteristics: different industries have different water quality characteristics, such as the suspended solids content in water, turbidity, organic content, heavy metal ion concentration, etc., all of which will affect the amount of polyacrylamide used.

    (2). Treatment objectives: different water treatment objectives require different types of polyacrylamide and dosage.

    (3). Process conditions: process parameters in the water treatment process, such as mixing speed, settling time and design of settling tank, etc. will also affect the dosage of polyacrylamide.

    (4). pH value influence: pH value is another important factor affecting the dosage of polyacrylamide. Under acidic conditions, the flocculation effect of polyacrylamide will be reduced, because acidic conditions will inhibit the growth and reproduction of bacteria, thus affecting the settling performance of sludge. Therefore, under acidic conditions, the dosage of polyacrylamide needs to be increased appropriately to achieve the desired flocculation effect. And under alkaline conditions, the dosage of polyacrylamide needs to be reduced appropriately.

    (5). Temperature conditions: temperature is also one of the important factors affecting the dosage of polyacrylamide. Under high temperature conditions, the molecular activity of polyacrylamide is enhanced, and the interaction force between molecules is weakened, thus reducing the flocculation effect. Therefore, under high temperature conditions, it is necessary to appropriately increase the dosage of polyacrylamide in order to achieve the desired flocculation effect. In low temperature conditions, it is necessary to appropriately reduce the amount of polyacrylamide.

Due to the different nature of the industry and sewage, the type and dosage of polyacrylamide used are also different. If you don't choose the right model, the usage will increase; choosing the right model can save some usage. If you want to know how much polyacrylamide is needed for one ton of water, you can first make a large-scale selection and choose the right polyacrylamide. When the best effect is achieved, the dosage required per ton of water can be calculated by observing the added amount for reference in actual use. In specific use, it is also necessary to adjust the dosage according to the current sewage concentration and other indicators, so this dosage can only be used as a reference.

    Therefore, the choice of polyacrylamide is extremely important. The correct choice can ensure that the polyacrylamide in the treatment process to play the best effect, effective precipitation of suspended solids, reduce turbidity, removal of organic matter and heavy metals and other pollutants, thereby improving the water quality treatment effect.

    The stability of polyacrylamide in the production process is difficult to control due to the formula, raw materials, production process and other factors in the production process. Once the control is not good, it will cause a world of difference in the use of the effect. However, our company has strict supervision on the control of raw materials, the research and development of formulations, and the double supervision and inspection of incoming and outgoing storage. We always choose stable quality and qualified products out of the warehouse.


    Our company, Hainan Yanghang, has developed a variety of product models of polyacrylamide, and the price of each model is different. Through our professional technical engineers and advanced selection equipment, we can choose the product model with lower price for our customers, which can save the cost for them. At the same time, if the selection is accurate, the usage will be less, so the cost will be lower.