Process
Biological secondary treatment
What is activated sludge?
Optimal range is 6.5-8.0
What is pH?
This organism can cause poor settling
What is filamentous?
An operator should always have
What is Personal Protective Equipment (PPE)?
8.34 lbs
What is 1 gallon of water?
Nitrification takes place under this condition
What is aerobic?
Most useful tool
What is a microscope?
The primary workers in the activated sludge process, removing BOD
What is bacteria?
Some may require a permit?
What is a confined space?
7.48
What is 1 cubic foot of water?
Poor settling indicates
What is bulking sludge?
Optimal DO in aeration
What is 1-3mg/L?
Stalked ciliates are a sign of
What is healthy sludge?
NEVER enter
What are chemical tanks?
30-min รท MLSS x 1000
What is Sludge Volume Index (SVI)?
Removal of solids
What is Waste Activated Sludge (WAS)?
Flask and vacuum are used for
What is Mixed Liquor Suspended Solids (MLSS)?
This microorganism has a corona or "wheel organ"
What is a rotifer?
When working on equipment, this step is required
What is Lock Out/Tag Out (LOTO)?
influent flow MG x influent BOD x 8.34
DIVIDED BY
tank volume MG x MLSS x 8.34
What is F/M Ratio?
SBR sequence
What is fill, react, settle, decant?
This measures the depth of solids
What is a core sampler? (Sludge Judge is acceptable)
These protozoa suggest an old sludge age
What is a suctorian?
This will give you all information for chemicals
What is Safety Data Sheet (SDS)?
MLSS x tank volume MG x 8.34
DIVIDED BY
WAS MLSS x WAS flowrate MG x 8.34
What is sludge age?