Engineering, 23.04.2020 16:53 mrhortert540
When drinking water treatment plants chlorinate water, the chlorine must remain in contact with the water for at least 30 minutes before being delivered to customers. A water plant operator wishes to know if his existing 10,000-gallon storage tank can provide this HRT. He does a wash-out tracer test with fluoride salt (conservative). The initial concentration is 12 mg/L and after an hour of feeding non-fluoridated water through the tank at 20 gpm, the concentration has dropped to 2 mg/L. Does the tank have the required HRT? [Yes, the HRT is 33.5 minutes]?
Answers: 2
Another question on Engineering
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
Answers: 1
Engineering, 04.07.2019 18:20
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
You know the right answer?
When drinking water treatment plants chlorinate water, the chlorine must remain in contact with the...
Questions
Mathematics, 31.01.2020 04:54
Physics, 31.01.2020 04:54
Social Studies, 31.01.2020 04:54
Social Studies, 31.01.2020 04:54
History, 31.01.2020 04:54
Chemistry, 31.01.2020 04:54
