Application of COD digester in environmental monitoring

Cod digester is an important instrument for the chemical experiment of water pollution detection in environmental monitoring, and environmental monitoring mainly refers to the measurement of the concentration of chemical substances or other pollutants in the environment by various technical means under specific conditions, and the field investigation and analysis of its change and impact on the environment According to the different test objects, the measurement standards and principles of environmental monitoring are also different Taking water quality monitoring as an example, the monitoring of water quality pollutants includes the monitoring of industrial wastewater and domestic sewage, which needs to be sampled and investigated Industrial wastewater mainly tests the content of chemical substances in it, while domestic sewage needs to be tested because it contains a lot of microorganisms and bacteria COD determination With the development of our rapid cod digester technology and equipment, its testing methods have more extensive development space According to the different testing principles, our commonly used testing methods are mainly potassium permanganate method and potassium dichromate method Cod is often used as a comprehensive evaluation index of the content of organic pollutants and oxygenated compounds in water In the measurement process, we often apply it to the rapid cod digester It combines the characteristics of multiple indicators of the analyzer, and has a perfect system from sampling and analysis, recording and statistics to long-distance data transmission, and through such a program, online automatic monitoring is realized The development of the rapid cod digester and method mainly focuses on the aspects of fast, power saving, reagent saving and less pollution There are many methods based on UV-vis spectrophotometry, and the sample digestion mostly uses microwave digestion or high temperature heating to explore the interference of removing inorganic reducing substances At the same time, the determination method under specific conditions has also been practiced The rapid cod digester method is suitable for the test of waste water It has the advantages of low reagent consumption, low cost and easy operation It can be used for the determination of large quantities of water samples and has strong practicability It is especially suitable for the determination of chemical oxygen demand by the dilution ratio of five-day biochemical oxygen demand The rapid method is of great significance It has obvious advantages over the standard reflux method in terms of time, is suitable for the requirements of total emission control and monitoring in China, and conforms to the rapid and accurate development trend of modern water quality analysis Cod is an important index of water quality evaluation, which directly reflects the degree of water pollution by reducing substances It is of great significance to study the Zui test method of rapid cod digester in environmental monitoring for monitoring and treating industrial wastewater and protecting the environment.