Study on the Correlation of Total Organic Carbon With Chemical Oxygen Demand and Biochemical Oxygen Demand in Water

Total organic carbon ( TOC ) can reflect the water pollution situation perfectly. It has characteristics of simple operation, quick velocity, accurate result. This paper studied the relationship between total organic carbon ( TOC ) and chemical oxygen demand( COD Cr ) and biological oxygen demand( BOD 5 ) .The correlated coefficient of TOC and COD Cr was 0 991 8 and that of TOC and BOD 5 was 0 936 2. That can be used to estimate the pollution situation in water.