Free residual chlorine concentration calculation method, free residual chlorine concentration calculation system, and space cleaning system

摘要

PROBLEM TO BE SOLVED: To calculate the free residual chlorine concentration for detecting the optimum free residual chlorine concentration in order to suppress the growth of bacteria by detecting the free residual chlorine concentration in an aqueous solution by a simple method capable of automatically adjusting the concentration. Provided are a method, a free residual chlorine concentration calculation system, and a space cleaning system with a fungus growth suppression function. SOLUTION: A chlorine component adding means (sodium hypochlorite adding means 2) for adding a chlorine component (sodium hypochlorite) to an aqueous solution R, and an aqueous solution R before and after addition of a chlorine component (sodium hypochlorite) The electric conductivity measuring means 3 for measuring the electric conductivity of No. 1 is provided, and the free residual chlorine concentration of the aqueous solution R is calculated and confirmed from the increment of the electric conductivity measured by the electric conductivity measuring means 3. [Selection diagram] Fig. 3