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Using the following assumptions, determine the solids retention time, the cell wastage flow rate, and the return sludge flow ratefor the Jambalaya shrimp processing plant WWTP
Assumptions:Allowable BOD5 in effluent = 25.0 mg/lSuspended solids in effluent = 30.0 mg/lWastage is from the return sludge LineYield Coefficent = 0.50 mg VSS/mg BOD5 removedDecay rate of microorganisms = 0.075 d^-1Inert Fraction of suspended solids = 30.0%
A 2-inch diameter glass pipe is connected to a pipe network in which the pressure is 70 psig. If the length is 300 feet and the outlet is 10 feet above the pipe, determine the flow rate.
The acceleration of a particle traveling along a straight line is A= (0.02e^t) m/s^2, where t is in seconds. If v=0, s=0 when t = 0, determine the velocity and acceleration of the particle at S= 4m
Water flows steadily through a horizontal nozzle. The nozzle inlet diameter is 6 in. At the nozzle outlet, where the pressure is atmospheric, the diameter is 2 in. Determine the pressure head at the nozzle inlet to produce a water jet velocity of ..
A water pipeline system is made up of three links in parallel. In any given year, on average, 99 in 100 pumps do not fail. The conditions in the links are statistically independent of each other.
A rigid tank whose volume is 10L is initially evacuated. A pinhole develops in the wall, and air from the surroundings at 1 bar, 25 degrees Celsius enters until the pressure in the tank becomes 1 bar.
The SO2 emission from a fixed source is 25 g/s. The effective stack height is 60 m, the wind speed is 4 m/s at the top of the stack. Assuming class C stability, what is the expected ground level concentration 2 km downwind
Alkaloids are chemical compounds containing nitrogen that can be produced by plant cells. In an experiment, an insulated closed vessel 1.673 m3 in volume was injected with a dilute water solution containing two alkaloids: ajmalicine and serpentine..
Calculate the elongation of a steel bar 4 feet in length and 4 inches in diameter when subjected to a force of 2.5 kips. Assume that the bar remains in the elastic region with E=30 ksi.
Determine the mass of the earth knowing that the mean radius of the moons orbit about the earth is 238.910mi and that the moon requires 27.32 days to complete one full revolution about the earth
A piston-cylinder device initially contains 20 g of saturated water vapor at 300 kPa. A resistance heater is operated within the cylinder with a current of 0.4 A from a 240 V source until the volume doubles.
Design a system to pump water 80 degrees C from a water heater to a washing system. Desired minimum flow rate is 750 Liter per min.
For the purposes of assessing an economy's growth performance, which is the more important statistic, real GDP or nominal GDP? Why?
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