Engineering, 29.07.2021 03:20 Kjswagout5052
A settling tank needs to be constructed to remove 90% (on a mass basis) of the suspended solids in a 575 cubic feet per minute (cfm) water flow from a local waste stream. A laboratory settling test using a 6 ft column has provided the following data on the contents and settling of particles in the waste water. Fraction of Settling time mass collected 1 min 2% 5 min 9% 10 min 17% 20 min 32% 30 min 44% 45 min 58% 1 hour 68% 2 hours 90% 4 hours 99% 100% Long time For geometric proportions, take length equal to four times width and width equal to twice depth. What should the dimensions of this settling tank be? Express your answers in feet.
Answers: 3
Engineering, 04.07.2019 19:10, moneyyfletcher
The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]
Answers: 3
Engineering, 04.07.2019 19:10, justkevin1231
Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view
Answers: 2
A settling tank needs to be constructed to remove 90% (on a mass basis) of the suspended solids in a...
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