Analisa Kebutuhan Oksigen Secara Kimiawi Limbah Cair Laboratorium di Balai Riset dan Standardisasi Medan

Abstract

COD is parameter that shows the quality of oxydizible organics compounds is waste water. The organics compounds will be oxydated by reagent that’s used for oxydator. Analyzed of COD value of BARISTAND waste water have done. Which the method that used to measuring COD in the waste water is using Titrimetric method. COD test value at first week on January until fourth week on February are, First week: Inlet 104,97 mg/L, Outlet 15,52 mg/L. Second week: Inlet 34,99 mg/L, Outlet 50,54 mg/L. Third week: Inlet 540,73 mg/L, Outlet 39,76 mg/L. Fourth week: Inlet 35,78 mg/L, Outlet 15,90mg/L.