Operational causes of bulking ...

Published by

Operational causes of bulking

Some of Operational causes of  bulking include
1. low dissolved oxygen in the aeration tank
2. insufficient nutrients: Especially quantity of nitrogen and phosphorus important, also absence of trace element cause bulking.
3. widely varying organic waste loading

but the limited dissolved oxygen has been noted more frequently than any other cause for sludge bulking. If the problem is due to limited D.O. Aerating equipment should operate at full capacity. At least 2 mg/L of dissolved oxygen in the aeration tank (under normal loading conditions) should be maintained.