Class 4
wastewate
r extended
questions
and
answer
What happens when a 3 phase motor overheats? -
answer Over heats but keeps going, insulation gets
damaged
, What's the minimum amount of oxygen there
should be in the air - answer 19.5% oxygen
How much DO needed for aeration bugs - answer
0.1-0.3mg/L DO
Benefits of trickling filter under drainage system -
answer Carry wastewater passing through the
filter and the sloughed solids from the filter to the
final clarification process, and to provide
ventilation of the filter to maintain aerobic
conditions
Benefits of trickling filter under drainage system -
answer -Carry wastewater to final clarification
process
-ventilation of the filter/maintain aerobic
conditions
What effects the performance of UV treatment -
answer -Turbidity, suspended solids,
-Fouling on the quartz sleeves of the UV lamps
How to reduce alkalinity in wastewater - answer -
sodium bisulfate
wastewate
r extended
questions
and
answer
What happens when a 3 phase motor overheats? -
answer Over heats but keeps going, insulation gets
damaged
, What's the minimum amount of oxygen there
should be in the air - answer 19.5% oxygen
How much DO needed for aeration bugs - answer
0.1-0.3mg/L DO
Benefits of trickling filter under drainage system -
answer Carry wastewater passing through the
filter and the sloughed solids from the filter to the
final clarification process, and to provide
ventilation of the filter to maintain aerobic
conditions
Benefits of trickling filter under drainage system -
answer -Carry wastewater to final clarification
process
-ventilation of the filter/maintain aerobic
conditions
What effects the performance of UV treatment -
answer -Turbidity, suspended solids,
-Fouling on the quartz sleeves of the UV lamps
How to reduce alkalinity in wastewater - answer -
sodium bisulfate
