the Anoxic, Oxic process, we control the DO both is about 2~3 ppm now, and the denitrification reaction rate is about 40~50%. if we control the Anoxic process DO is 2~3 ppm, and the Oxic process DO is >4 ppm earlier in the system, the nitrification reaction rate is not stabile. we do not know why the DO just range 1~2 ppm, and the active of microorganism is different totally.
Published by Lin JYH-YAN, advanced engineer at FORMOSA PETROCHEMICAL CORPORATION
the Anoxic, Oxic process, we control the DO both is about 2~3 ppm now, and the denitrification reaction rate is about 40~50%. if we control the Anoxic process DO is 2~3 ppm, and the Oxic process DO is >4 ppm earlier in the system, the nitrification reaction rate is not stabile. we do not know why the DO just range 1~2 ppm, and the active of microorganism is different totally.