Analisis Kadar Sianida (CN-) dan Kadar Sulfat (SO4) pada Air Baku, Air Filtrat, dan Air Reservoir Menggunakan Spektrofotometer di Perumda Tirtanadi Provinsi Sumatera Utara

Abstract

This research aims to determine cyanide and sulfate levels in clean water, namely raw water, filtrate water and reservoir water, then compare them with the quality standards set by Minister of Health Regulation No. 492/Menkes/Per/IV/2010. The results of cyanide analysis using the spectrophotometric method on samples of raw water, filtrate water and reservoir water that were carried out did not meet the quality standard limit, namely 0.07 mg/L. In Raw Water 0.011 mg/L, in Filtrate Water 0.08 mg/L and in Reservoir Water 0.05 mg/L originating from Martubung.. The results of Sulfate Analysis using the colorimetric method for raw water test samples do not exceed the quality standard limits namely 250 mg/L in Martubung Raw Water 50 mg/L, in Tirta Nusantara Raw Water 244 mg/L and in Lake Toba Raw Water 152mg/L.