Abstract
The influences of variations of temperature and F/M on the TTC-ETS activity have been experimentally studied. The correlation between TTC-ETS activity and COD degradation was also analyzed. Comparing TTC-ETS activities with physical and chemical indexes when high C/N ratio impacted A2/O process, the advantages and disadvantages of using TTC-ETS activity to characterize the status of A2/O process were illustrated. The results showed that both temperature and F/M were positively correlated with TTC-ETS activity. TTC-ETS activity was in the range of 13.2-48.3 mg/(g·h) and the maximum value was 60 mg/(g·h) which had a significant relationship with COD removal rate. In this system, abnormal state was pre-warned by TTC-ETS activity. The highest removal rate of COD appeared when TTC-ETS activity was 41.0 mg/(g·h).
| Original language | English |
|---|---|
| Pages (from-to) | 1711-1715 |
| Number of pages | 5 |
| Journal | Huanjing Kexue/Environmental Science |
| Volume | 30 |
| Issue number | 6 |
| State | Published - Jun 2009 |
Keywords
- A/O process
- F/M
- Impact and repair
- TTC-ETS activity
- Temperature