METHOD FOR SUPPLYING CHEMICAL

摘要

A method for supplying chemical is provided to supply mixed solution continuously in changing a mixing tank by monitoring the density of a mixed solution. A first mixed solution is manufactured by supplying at least more than two kind of solution to a first mixing tank(S100). The concentration of the first mixed solution is checked by using the densitometer connected to a mixed solution supply tube(S110). The first mixed solution is supplied to a liquid agent processing equipment(S120). The second mixed solution is manufactured by supplying at least more than two kinds of the solution to a second mixing tank(S130). The concentration of the second mixed solution stored in the second blending tank is checked by a certain cycle by utilizing the densitometer(S150).