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A pre-sedimentation basin has been designed that reduces the river water suspended solids concentration from 500 to 200 mg/L. How many pounds of dry solids does this represent per million gallons of treated water? If the specific gravity of these solids is 2.60 (e.g. the solids have a density 2.6 times that of water, or about 2.6 g/mL) and the sludge removed has a solids concentration of 2% (on a volume basis), what volume of sludge must be removed every week at a design flow of 4 million gallons per day (MGD).
A 110 cm^3 sample of wet soil has a mass of 106 g and a degree saturation of 100%. When oven-dried, the mass is 81 g. Determine the 1) water content, 2) specific gravity, 3) void ratio, and unit dry weight of soil particles.
Part A Determine the tension developed in cable AB for equilibrium of the 350-lb crate Part B Determine the tension developed in cables AC for equilibrium of the 350-lb crate. Part C Determine the force developed along strut AD for equilibrium of ..
water flows at a velocity of 25 ft/s at a depth in a rectangular channel 16 feet wide. Determine the downstream depth necessary to form a hydraulic jump, the head loss through the jump and the horsepower dissipated in the jump.
What type of exercise takes place in a classroom setting arranged to look like an emergency operations center or in an actual emergency operations center, and involves simulation using written, telephone, and radio messaging.
if point D is at (100,100) and the line DE to "E" is 300 feet long at an azimuth of 225 degree , what is location of point E in the XY coordinate system. what is the length and azimuth of the line connection points (100,100) to (300,500)
Sketch and annotate the wedge described above.
The design parameters are: • Q = 65 m3/d, • Wetland area (A) = 0.23 hectares (2,300 m2) (including the safety factor), • Aspect ratio = 8:1 • Average water depth (d) = 0.5 m • Bed slope = 1% (0.01 m/m) Given that the Manning's resistance factor
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
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
Consider the two loading scenarios on the beam, where the beam is supported by a pin joint on the left and roller joint at the right end. What are the internal forces and moment at point A for each scenario
Calculate the stress at failure of a concrete test cylinder with a measured diameter of 152.4 mm and a recorded load of 371,426N. Units of ksi.
A particular crest vertical curve (VC) on US 280 at Shelton Mill Rd has long been criticized as being unsafe. Its length is 400 feet. The prevailing speed on the crest VC is 50 mph. In its present condition, its tangent grades are G1=2 percent and..
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