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Cationic polyacrylamide use matters needing attention
Dec 28, 2017

1, the size of flocs: flocs are too small will affect the speed of drainage, flocs too large will make flocs more water constraints and reduce the degree of mud crackers. By selecting the molecular weight polyacrylamide floc size can be adjusted.

2, sludge characteristics: The first point to understand the source of sludge, characteristics and composition, the proportion. Depending on the nature of the sludge can be divided into two kinds of organic and inorganic sludge. Cationic polyacrylamide for the disposal of organic sludge, the relative anionic polyacrylamide flocculant for inorganic sludge, alkaline with a strong anionic polyacrylamide, and when acidic is not suitable for use with anionic polyacrylamide, solid content High sludge usually polyacrylamide amount is also large.

3, floc strength: Flocculation under the shear effect should be stable and not broken. Improve polyacrylamide molecular weight or choose the appropriate molecular structure contribute to improve the stability of the floc.

4, polyacrylamide ionic degree: for the dewatered sludge, different ionicity of the flocculant can be selected first to do a small test to select the best suitable polyacrylamide, so that you can get the best flocculant effect, Can also add the least amount of medication, cost savings.

5, polyacrylamide dissolved: dissolved in order to give full play to flocculation. Sometimes need to speed up the dissolution rate, then consider the progress of polyacrylamide solution concentration.