Processing capacity calculation
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Our plant uses the A2O process for coking wastewater treatment. The capacity of the equalization tank is 1300 m3, that of the anoxic tank is 1800 m3, and that of the aerobic tank is 2100 m3. The wastewater flow rate is around 35 m3 per unit time. The parameters of the incoming wastewater are as follows: ammonia nitrogen at around 100, and COD between 4000 and 5000. Can the processing capacity of such a system meet the actual requirements?
It is likely difficult to meet current environmental emission standards when using this process to treat coking wastewater.
What is restricting it? Hope for some advice.
There are inlet water quality parameters for wastewater treatment, and the function of the regulation tank is to adjust these inlet parameters. Generally, dilution is required in this tank; by considering the inlet water quality requirements specified by your wastewater treatment unit, it is possible to determine whether the capacity of these tanks is sufficient. There should be no problem.
The processing capacity should be sufficient; based on the pool volume and treatment process you mentioned, it shouldn’t be a problem to meet the ammonia nitrogen standards. However, it will likely be difficult to keep the COD below 150. To meet the standards, the COD of the incoming water should be kept between 2500 and 3000.