Our plant’s treatment process involves two stages of AO treatment followed by sedimentation. Currently, the COD level of the incoming water is between 400 and 500, while the ammonia nitrogen level is between 200 and 300
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Our plant’s treatment process involves two stages of AO treatment followed by sedimentation. The COD level in the incoming water is between 400 and 500, while the ammonia nitrogen level is between 200 and 300. The COD level in the treated water is around 20 to 30, and the ammonia nitrogen level is around 10. The sedimentation ratio in the aeration tank is between 12 and 15. The water temperature is around 28 degrees Celsius, and the dissolved oxygen level is between 2 and 1.5. How about it? Seek feedback
I think as long as the removal effect is achieved and the operational economic costs remain within an acceptable range, that’s good:D
I’m really curious though – with the imbalance of C and N in the influent water, your ammonia removal effect is quite significant. How do you make the adjustments in this process? Thank you
We adjust the BC ratio by adding methanol
Hello, thank you for your reply. What is the conversion ratio between methanol added and COD? Thank you
Despite insufficient carbon source, the treatment effect was good and met the standards； Doubts about the effectiveness of this treatment
Is this ammonia synthesis wastewater? What is the volume of water to be treated? What is the aeration volume? It works very well; impressive!
The COD of a 1% methanol aqueous solution is 15,000 mg/L
The B/C ratio for methanol can be calculated as 0.8.
The removal rate of COD reaches around 93%, while the removal rate of ammonia nitrogen is about 95%. Such performance is textbook-perfect; it’s amazing!