The ___ space between the impeller and the volute case, the ____ the efficiency of the pump.
The pressure at the bottom of a tank is 32 psi. Calculate the number of feet of water in the tank.
Calculate the dose of permanganate being used if the treatment plant produces 125,000 gallons of water per day and uses an average of 3.5 pounds per day of permanganate for iron and manganese removal.
Calculate the amount of calcium hypochlorite required to disinfect a 250,000 gallon storage tank to a dose of 25 mg/l using granular calcium hypochlorite that is 70% chlorine.
A WTP uses 12.5% sodium hypochlorite to disinfect. A chlorine dose of 1.5 mg/l provides 1.3 lbs/gal of available chlorine. If the WTP treats 525,000 gallons per day how many gallons of sodium hypochlorite will need to be fed per day?
What water weighing agent is used in flocculation?
Generally natural waters that have a high organic compounds are
The purpose of laundering weirs is
When measuring a liquid in burets where do you read the meniscus?
Which process thoroughly mixes coagulation chemicals in the raw water?
