The application of cationic polyacrylamide is indispensable to the treatment of wastewater in various industries. It is not only good for various industries, but also brings us good news. What do we know about its scope of application and considerations? Next, let’s explore some. Cationic polyacrylamide Note:
1, the size of the flocculant: too small flocculant will affect the drainage speed, too large flocculant will limit more water, reduce the degree of drying. By selecting the molecular weight of the polyacrylamide, the size of the flocculant can be adjusted.
2. Characteristics of sludge. First of all, it is necessary to understand the source, characteristics and composition of sludge. According to different properties, sludge can be divided into organic sludge and inorganic sludge. Cationic polyacrylamide is used to treat organic sludge, relative anionic polyacrylamide flocculant is used for inorganic sludge, cationic polyacrylamide is used for strong alkaline, anionic polyacrylamide is used for strong acidic. When the solid content is high, the amount of polyacrylamide is usually large.
3, floc strength: floc should be stable and not broken under shearing. Increasing the molecular weight of polyacrylamide or selecting a suitable molecular structure is helpful to improve the stability of the floc.
4, the ionic degree of polyacrylamide: for dehydrated sludge, different ionic degrees of flocculant can be used to stop selection, choose the appropriate polyacrylamide, can obtain good flocculation effect, reduce the dose, save costs.
5, the dissolution of polyacrylamide: good dissolution can give full play to the flocculation. Sometimes it is necessary to speed up the dissolution rate, at which time the concentration of the polyacrylamide solution can be considered.
