1.The pH is changed from about 6.6 to 5.6. Now we have increase the pH from 5.6 to 6.0, the target is about 7. 2.The DO is about 3 ppm, although the DO is varyed from 1.5 to 3.5 ppm. 3.we pump the sludge from other system (which is good to NH3-N reduction) as usually, but this time the NH3-N reduction rate is poor to improve .
Published by Lin JYH-YAN, advanced engineer at FORMOSA PETROCHEMICAL CORPORATION
1.The pH is changed from about 6.6 to 5.6. Now we have increase the pH from 5.6 to 6.0, the target is about 7.
2.The DO is about 3 ppm, although the DO is varyed from 1.5 to 3.5 ppm.
3.we pump the sludge from other system (which is good to NH3-N reduction) as usually, but this time the NH3-N reduction rate is poor to improve .