The ___ space between the impeller and the volute case, the ____ the efficiency of the pump.
All batteries have __ current.
Which flow measuring device may give inaccurate flow readings due to organic solids settling out before the device?
A oxidation ditch plant would be considered most similar to which layout, flow diagram or the following?
If the DO is very low in the aeration tank of an activated sludge plant, what will occur?
When a digester “sours” under normal operations, what is the most probable cause?
BOD results for the last 5 days at the effluent were 12 mg/, 17 mg/l, 10 mg/l, 18 mg/l. 12 mg/l. Calculate the average BOD reading.
You have noticed a slight increase in the bearing temperature of the centrifugal blower. What is this typically an indicator of?
Calculate the percent BOD removal with the following data; BOD (Influent)=275 mg/l, BOD (Effluent) = 12 mg/l.
When wastewater and potable water are used within close proximity there should be a
