In fact, there are many indicators in water pollution. During the process of treating these indicators, in order to ensure that the treated water meets the discharge standards, it is necessary to monitor various indicators in the sewage. Based on the measurement data from the water quality detector, corresponding methods should be adopted to make the water quality meet the discharge standards! As for which indicators, they are determined based on the specific conditions of the water quality. Among them, COD and BOD are important indicators. Why is that? Please look down!
Because the types of total organic matter content in f wastewater are well understood, reaching up to over a hundred kinds of organic substances, to monitor and analyze the degree of these over a hundred kinds of organic matter in the water, that person feels it is not very realistic. Not only does it waste a lot of time, but it also consumes chemicals. So some indicators are used to represent the detection data, thereby observing the water quality situation. Research by relevant departments shows that all organic substances share two commonalities: 1. They are all composed of carbon and hydrogen; Most organic substances can be chemically oxidized or oxidized by microorganisms. Among them, carbon and hydrogen respectively form non-toxic and harmless carbon dioxide and water with oxygen. The total organic matter in wastewater consumes oxygen both during the chemical oxidation process and the biological oxidation process. The more organic matter there is in the wastewater, the more oxygen will be consumed. There is a direct proportional relationship between them. If this is the case, using COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand) to represent the content of reductive substances in wastewater is the best choice!
What instruments are needed to test the above two indicators? They are respectively the COD online analyzer and the BOD rapid tester. In addition, for other indicators to be detected, the instruments used will be different. It always depends on your own situation. If you are not clear about something specific, you can ask the relevant manufacturer.
