MEASUREMENT METHOD AND AUTOMATIC MEASUREMENT APPARATUS OF ALUMINUM CONCENTRATION IN TEST WATER, AND CONTROL METHOD OF SILICA-BASED SCALE ADHESION INHIBITOR CONCENTRATION

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for efficiently measuring concentration of aluminum being a factor which causes silica-based scale adhesion occurring on cooling water system, a boiler water, a membrane processing and a reduction well of geothermal power plant or the like, in situ.;SOLUTION: There is provided the method (1) for measuring the concentration of aluminum being a factor which causes silica-based scale in test water. In the method, a reaction reagent comprising a combination of 7-iodine-8-hydroxyquinoline-5-sulfonic acid and a buffer solution is added to the test water and, thereafter, the aluminum concentration is obtained from the absorbance measured at a wavelength of aluminum analysis. There is also provided the automatic measurement apparatus (2) of aluminum concentration in the test water and the control method (3) of silica-based scale adhesion inhibitor concentration.;COPYRIGHT: (C)2012,JPO&INPIT