Gongyi Filter Industry Co., Ltd.

The higher the molecular weight of polyacrylamide, the better the effect?

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2021-05-28 15:19:48

Before we did not understand the characteristics of polyacrylamide, many users thought that the higher the molecular weight of polyacrylamide, the better. Is that right? As a manufacturer of polyacrylamide, today we popularize the influence of high molecular weight of polyacrylamide.

 

Generally speaking, the flocculation effect of Polyacrylamide in water treatment will be enhanced with the increase of molecular weight of polyacrylamide, mainly due to the increase of molecular weight of polyacrylamide, the ability of molecular bridge will be enhanced in the flocculation process, which can effectively make the suspended particles in sewage form large particle settlement through the bridge, greatly accelerating the flocculation settlement effect, The subsequent filter press treatment has a good desliming effect.

 

So polyacrylamide molecular weight is small, its effect will be poor? Of course not. Generally, polyacrylamide with molecular weight more than 24 million is of high molecular weight and high viscosity, while polyacrylamide with molecular weight between 6 million and 20 million is of low molecular weight and medium molecular weight. For crawler filter press, the use of 18 million molecular weight polyacrylamide can achieve good sludge dewatering effect, and sludge dewatering can be carried out by crawler filter press, but some centrifugal filter press often need high molecular weight polyacrylamide to achieve sludge dewatering effect due to its large shear force.

 

In the specific use of polyacrylamide, the dissolution of high molecular weight polyacrylamide is slow, which affects the use efficiency. Excessive use will also affect the use effect. Therefore, the best choice of polyacrylamide is to choose the appropriate model according to the actual situation, which can not only play a good effect, but also save the cost.