Anaerobic Sludge Digestion
The capacity of water to neutralize an acid to at least a PH of 4.5
Alkalinity
Bacteria that must have dissolved oxygen to survive
Aerobes
First to remove salts
nanofiltration
What can be in the effluent to kill fish
Oxygen deficiency, ammonia toxicity
MCRT is interchangeable with
SRT and Sludge Age
How much methane is produced during anaerobic sludge digestion?
65-70 %
taking in or soaking up of one substance into the body of another by molecular or chemical action
absorption
Best place to discharge reject water
Sanitary sewer
three processes to remove nitrogen
chemical, biological and physical
A condition in which dissolved or molecular oxygen is present in the water environment is
Aerobic
Bacteria that thrive between 85- and 100-degrees Fahrenheit
Mesophilic
Predominance of Rotifers and Nematodes
Old Sludge
This system can produce as much as 50% of reject water
RO (Reverse Osmosis)
Most abundant contributor to nitrogen in a WWTP
Urine
5 stage process for phosphorus removal
Bardenpho Process
What type of meals are best?
Small frequent meals
Which treatment consists of biological processes in which microorganisms oxidize organic matter?
Secondary
Flux=
Flow
Typical PH for wastewater
6-9
A situation in which living organisms oxidize some of their own cellular mass instead of new organic matter is
endogenous respiration
What type of bacteria breakdown complex solids to volatile acids?
Saprophytic Bacteria
Correct order for SBR
Fill, react, settle, decant
Largest Pore size
Microfiltration
When is full nitrification observed
Ammonia < 2mg/l and nitrite < 0.5 mg/l
Common cause of sludge bulking
filamentous organisms