Forming flocculating agent capable of controlling dissolving rate according to water flow speed

The invention discloses a forming flocculating agent capable of controlling the dissolving rate according to the water flow speed. The flocculating agent is of a flat cylinder shape, and the diameter/height ratio is 10:1, and is formed through bonding and compressing gelatinized starch. The forming flocculating agent is flatly installed in a plastic screen frame, and is inserted into a water inlet of a water treatment system vertically relative to the water flow direction, so as to reach the aim of adding water treatment agents uniformly. The forming flocculating agent capable of controlling the dissolving rate according to the water flow speed provided by the invention changes the chemical agent adding mode of the water treatment system; a flocculating dissolving tank and a metering pump are not used any more; and the forming flocculating agent has an irreplaceable effect for a mobile water treatment system or a water treatment system with a small installation space.