The hydraulic retention time ...
Published by Dwayne Doucette, MASc. P.Eng., Senior Engineer, Parks Canada
The hydraulic retention time should be appropriate since SBR is similar to Extended Air. The problem will be separating liquids from solids since you will be converting from Batch operation (SBR) to continuous flow with EA. You will require either secondary clarifiers or membrane filtration to separate liquids and solids.
The advantage with membranes would be improved effluent quality, however there will be higher operating costs.
Good Luck
2 Comments
The membrane system will require a greater power input than normal clarifiers. However, overall it may be cheaper than having the build extra assets required for secondary settlement. Will be dependent on the size of the assets, as you may be able to buy something of the shelf if the unots are small enough
Published by Adam Guest, Process Engineer at United Utilities
I am grateful for your response. Can you provide me with an example of where the higher operation cost will be accured?
Published by Darius Cumberbatch