What are the rules for calculating the sludge age in the A2O process?
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Hello everyone, I have a question for you. All the formulas for calculating sludge age that I found online state that it is the aeration tank sludge divided by… . . (The rest is omitted). As I understand it, it is the volume of the aerobic zone multiplied by the sludge concentration, but when looking at other materials, I found that it is calculated using the total volume of the entire biological reactor (anoxic zone + aerobic zone + anaerobic zone). So I was confused. I’d like to ask everyone: in the formula for calculating sludge age, is it based on the total volume of the entire biological reaction tank, or on the volume of the aerobic zone?
It seems to be the entire biochemical tank. . . .