The scale removal and prevention in paper mills are divided into two parts: the circulation of ordinary process cooling water, which cools liquids with fewer impurities, such as oil, and the reuse of water containing a large amount of pulp and other materials. The former has a simpler processing method, while the latter is more difficult to handle. Due to the physical flocculation principle of the Como electronic descaling device, it has a flocculation effect on small particles such as pulp, so the effectiveness of descaling and anti-scaling is not only limited to calcium carbonate. The Como electronic descaling device is capable of handling many complex environments, which is unmatched by other products.