A RAPID ESTIMATION OF METAL CONTENTS IN WASTEWATER TREATMENT FOR CONDUCTIVITY MEASUREMENTS

摘要: An efficient wastewater treatment for metal removal is based on the precipitation of ferrites by addition iron(II) in alkaline and oxidizing conditions. The maximum efficiency achieved an iron(II)/total ratio 15:1 (w:w) (Barrado et al., 1996a) which implies that total concentration must be known. It has been established a linear empirical correlation (R2=0.997) between conductivity allows rapid estimation amount to added with no need time-consuming analysis. obtained overestimates concentration, therefore iron(II), thus assuring removal. occurrence complexing substances modifies ionic composition decreasing measurements estimated concentration. However, it demonstrated still excess assure