SCALE INHIBITOR, SCALE-INHIBITING DEVICE USING THE SAME, AND SCALE-INHIBITING SYSTEM

摘要

A scale inhibitor that comprises granules that comprise particles that include a plurality of polyphosphates, the granules having an asymmetrical particle size distribution, and the most frequently occurring particle size being smaller than the average particle size of the granules. Thus, when the flow rate of treated water that flows through the scale inhibitor is low, the concentration that dissolves in the treated water can be reduced. Accordingly, the scale inhibitor is not wastefully consumed, and the life of the scale inhibitor can be extended. In addition, maintenance frequency and upkeep costs associated with replacement or replenishment of the scale inhibitor can also be reduced.