Is the larger the flocs of polyacrylamide in wastewater the better?

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    Polyacrylamide is the main water treatment agent in industrial production. Its flocculation performance is often used in water treatment, petroleum, paper making, textile, and other industries.

    Polyacrylamide should be dissolved before use, and then the dissolved liquid is added to the wastewater for flocculation and precipitation. Polyacrylamide should be selected before use.

    The selection of polyacrylamide should be based on the PH value of wastewater, temperature, impurity characteristics, sludge filter press type, and other comprehensive factors to choose from. Small test, then a pilot test, and then on the machine operation, sludge filter press to observe the moisture content of mud cake, supernatant situation.

    Some people think that the larger the flocs of polyacrylamide in wastewater, the better, is this really the case?

    Depending on the type of sludge filter press: general plate frame machine and belt machine, flocs do not need to be too large, too large if more water is wrapped in flocs, but not conducive to filter, resulting in high water content of mud cake; If you use a screw folding machine or centrifuge, you need the flocs to be large and tight, so that it is not easy to break up the flocs when the machine is rotating at high speed, and it is more conducive to mud pressing.

    Therefore, it is not the larger the flocs, the better, but according to the field process and the conditions of the machine used to judge and select.

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