PENURUNAN KADAR Mn PADA AIR SUMUR DIII TEKNIK KIMIA SETELAH MELEWATI DEMINERALIZED WATER DENGAN METODE SPEKTROFOTOMETER UV-VIS (Decreased Levels In Water Wells Mn DIII Chemical Engineering After Passing Demineralized Water With Methods uv-vis Spektrofotometer)

Abstract

Demineralised water system is a system that serves to process the raw water into demineralized water is subsequently demineralized water is used as boiler feed water supplier. This system uses ion exchange resin unit consisting of a column of cation exchange resin, anion exchange resin column and the column mixbed resin. Mn metal is metal gray vaginal discharge that is one of the causes of the crust in the boiler pipes and need dihilangkan.Untuk determine levels of Mn in the sample, measured using a spectrophotometer. Spectrophotometry is a method of analysis that is based on the measurement of light absorption by a lane monochromatic colored solution at a specific wavelength using a prism or diffraction grating monochromator and detector vacuum phototube or photon vacuum tube. Measurements were made every 10 minutes. The observation showed a decrease in the levels of Mn in the minutes to 0; 10; 20; 30; 40; 50 respectively, are 0.714 ppm; 0.698 ppm; 0.493 ppm; 0.328 ppm; 0.109 ppm; 0,027 ppm. Keywords : Water Demineralization , Metal Mn , Spectrophotometry