Analysis and Comparison of the Determination of Chemical Oxygen Demand in Wastewater Using Dichromate Method and Rapid Digestion Spectrophotometry
Chemical oxygen demand is a key parameter for measuring the degree of pollution caused by reducing substances in water,and it is also an important comprehensive indicator for evaluating the relative content of organic matter in water.The chemical oxygen demand(COD)in water samples was measured using the dichromate method and rapid digestion spectrophotometry in the laboratory,and the two methods were compared based on the measurement results.First of all,the characteristics and differences of the two methods are deeply studied from the aspects of experimental design and data processing.Examples are then given to show how these methods can be used to test different sample types.Finally,summarize and give some suggestions.
NETL
NSTL
万方数据
