Abstract
Controlled substrate addition was used to maintain mixed microbial cultures in fermenters at either pH 7.0 or 70% dissolved oxygen saturation. Control of pH permitted a greater volume of substrate to be processed. Ammonium nitrogen concentrations were similar for both fermenters but concentrations of oxidized nitrogen varied. Nitrification/denitrification sequences appeared to be initiated by unscheduled changes in dissolved oxygen concentration. It was possible to maintain a steady state with respect to a controlled parameter and end‐product quality but other parameters fluctuated.
| Original language | English |
|---|---|
| Pages (from-to) | 393-403 |
| Number of pages | 11 |
| Journal | Journal of Applied Bacteriology |
| Volume | 42 |
| Issue number | 3 |
| DOIs | |
| Publication status | Print publication - Jun 1977 |