Reference no: EM132433591 , Length: word count :- 1400

Question 1. Two filter beds are in a water treatment plant, with media and dimensions as follows.  Water discharges into this filter bed over a weir that is set at 110.00 feet above datum.  The water then flows downward through each of these filters, with an approach velocity into each of these filter beds of 0.01 ft/sec.  Point A is 90.00 feet above datum, and water pressure in the pipe at A is 3.0 psi. 

For both beds, g = 32.2 ft/sec², kinematic viscosity = 1.4 x 10^-5 ft²/sec, absolute viscosity = 2.8 x 10^-5lb-sec/ft², density of water = 1.937 lb sec²/ft⁴.

All pipes are 8" in diameter.  Each pipe has a control valve, set to a k of 10 (including this valve's short pipe stub).  Moreover, from filter C to point A, there is another 100-foot long 8" diameterpipe, as shown, with f = 0.03.  (There is no headloss through the underdrain media).

• a. What is the water level above the sand filter media in Filter B?
• B.  What is the water level above the anthracite filter media in Filter C?
• c.  Are these two water levels the same?  Or different?  If different, how can this be so?