Environmental Engineering Reference
In-Depth Information
Corrective actions
Aerate RBC or plant influent.•
•
•
Add
sodium nitrate or hydrogen peroxide to influent.
Adjust
•
baffles between stages 1 and 2 to increase fraction of total
surface area in first stage.
7.4.6.2 Excessive Sloughing
Symptom
Loss of slime
•
Causal factors
Excessive pH variance
•
•
Toxic influent•
Corrective actions
Implement or enforce pretreatment program.
•
•
Install
pH control equipment.
Equalize flow to acclimate organisms.
•
7.4.6.3 RBC Rotation
Symptom
Uneven RBC
•
rotation
Causal factors
Mechanical growth
•
•
Uneven growth
Corrective actions
Repair mechanical problem.
•
•
Increase rotational speed.
•
Adjust baffles to decrease loading.
•
Increase sloughing.
7.4.6.4 Solids
Symptom
Solids
•
accumulating in reactors
Causal factor
Inadequate pretreatment
•
