Lab
Approximately how many pounds are in 2 kilograms?
5 lb
What is the first-aid treatment for skin contact with most acids?
Wash the affected area with water
By what calculation does the BSWWF control its sludge age?
Sludge Retention Time
The MBR at BSWWF was designed to operate as what type of process?
Modified 4 stage Bardenpho.
As the pH drops across the bio-reactors due to nitrification, what is being absorbed?
Alkalinity
A measure of the acidic or basic strength of a solution
When the excavation is at least 4 feet deep.
The one key factor that determines the SRT at the BSWWF
Aeration influent temperature
BSWWF average flow rating?
1.5 MGD
The total volume of 1 side of the aeration basin
319,200 gallons
What is Total Kjeldahl Nitrogen?
Sum of organic nitrogen and ammonia nitrogen.
Properly functioning fume hoods should have what air flow when the sash is partially closed?
30 m/min
The digester at the BSWWF produces what class of biosolids?
Class B
Under the DEQ emissions permit, how many hours are the generators at the BSWWF allowed to run in a years’ time?
500 hours
1 foot in digester 3 equals how many gallons?
15,867 gallons
What does the standard 5 day BOD test measure?
The amount of oxygen used by microorganism as they consume and metabolize organic material in water.
If you have a hexane fire, which type of extinguisher should you use?
Class B
In order to meet pathogen reduction requirements, the BSWWF uses this calculation method
Volatile Solids Reduction
The RAS rate at BSWWF is determined by what flow rate?
2-4 times the influent flow
1 foot in the solids day tank equals how many gallons?
848 gallons
Why do we test for the presence of E. Coli?
E. Coli is a Target Indicator Organism. Presence of e. coli can indicate fecal contamination and the possible presence of disease- causing enteric organisms.
Gas concentrations below the LEL are too______ to ignite
Lean
What is minimum percent VSR the sludge can be from the Digester at BSWWF
38%
Nitrosomonas are the bacteria that convert ammonium to nitrite, what are the bacteria that covert nitrite to nitrate?
Nitrobacter
What is the name brand of the PLCs that run BSWWF?
Modicon Qunatum