Q2: Determine the dimension of flocculator tank to treat 50 m3/min of water with detention time equal 30 min, using ]length: width: depth ratio 1:2:1[. This flocculator have paddle of 0.3 m width and are set in pairs on 3 shafts. IF the power input is 1500 watt, calculate Vpaddle in rpm (take V equal to 65% of Vp). Check G and GT-

Q2: Determine the dimension of flocculator tank to treat 50 m3/min of water with detention time equal 30 min, using ]length: width: depth ratio 1:2:1[. This flocculator have paddle of 0.3 m width and are set in pairs on 3 shafts. IF the power input is 1500 watt, calculate Vpaddle in rpm (take V equal to 65% of Vp). Check G and GT-

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.6P

See similar textbooks

Similar questions

If the flow of 0.10 m3/s of water (mu = 1.31 x 10-3 Pa.s) is to be maintained in the system shown, what power must be added to the water by the pump? The pipe is made of steel and is 15 cm in diameter. Neglect minor losses. TV
Water flows from Resorvoir A (Elev 133 m.) to a turbine (Elev 76 m.) then discharges into tailtrace B (Elev 30 m.) as shown. the head loss from (A) to (1) is 2 times the velocity head in the pipe, and the head loss from (2) to (b) is 1.49 times the velocity head in the pipe. if the flow rate in the pipe is 35 ft63/S, diameter of all pipes is 25 in., calculate the horsepower generated by the turbine. Use 1 hp = 550 lb-ft/s.
A flocculator is 16 ft (4.88 m) deep, 40 ft (12.2 m) wide, and 80 ft (24.4 m) long. The flow ofthe water plant is 13 mgd (20 cfs, 0,57 m3/s).Rotating paddles are supported parallel to four horizontal shafts. The rotating speed is 2.0rpm. The center line of the paddles is 5.5 ft (1.68 m) from the shaft (mid-depth of the basin).Each shaft equipped with six paddles. Each paddle blade is 10 in (25 cm) wide and 38 ft (11.6)long. Assume the mean velocity of the water is 28 percent of the velocity of the paddles andtheir drag coefficient is 1.9.55 p.Estimate:(a) the difference in velocity between the paddles and water(b) the useful power input(c) the energy consumption per million gallons (Mgal)(d) the detention time(e) the value of G and Gt at 60 oF(f) the loading rate of the flocculator• Find velocity differential v• Find P• Determine energy consumption E• Determine detention time t• Compute G and Gt• Compute the loading rate
A flocculator is 16 ft (4.88 m) deep, 40 ft (12.2 m) wide, and 80 ft (24.4 m) long. The flow ofthe water plant is 13 mgd (20 cfs, 0,57 m3/s).Rotating paddles are supported parallel to four horizontal shafts. The rotating speed is 2.0rpm. The center line of the paddles is 5.5 ft (1.68 m) from the shaft (mid-depth of the basin).Each shaft equipped with six paddles. Each paddle blade is 10 in (25 cm) wide and 38 ft (11.6)long. Assume the mean velocity of the water is 28 percent of the velocity of the paddles andtheir drag coefficient is 1.9. (a) the difference in velocity between the paddles and water(b) the useful power input(c) the energy consumption per million gallons (Mgal)(d) the detention time(e) the value of G and Gt at 60 oF(f) the loading rate of the flocculator• Find velocity differential v• Find P• Determine energy consumption E• Determine detention time t• Compute G and Gt• Compute the loading rate
Water is designed to flow in a 50mm diameter galvanize iron pipe (e=0.3mm, C=130) of total length 180m shown in figure 2. The tank water level remains constant. Using the Darcy-Weisbach and Hazen Williams formulas, calculate the flow rate in pipe.
pls answer asap for my hydraulics course. A 30 cm diameter pipe is connected by a reducer to a 10 cm diameter pipe. Points 1 (on the 30 cm diam.) and 2 (on the 10 cm diam.) are along the same elevation. The pressure at 1 is 250 kPa. The flow is 30 liters per second and the energy lost between 1 and 2 is equivalent to 20 kPa. Compute the pressure at 2 if the liquid flowing has a specific gravity of 1.50.
A 600mm diameter pipe, 720m long carries water at the rate of 2.5m/s. What is the water hammer pressure if the valve is closed in 1.2 seconds? Use Ewater = 2.2x109Pa and pw = 1000kg/m3.
Water flows through a set of pipes from a reservoir to the point of use, 12.5 m below thewater surface of the reservoir. The first pipe has a diameter and length of 125 mm and 20 mrespectively. The second pipe has a diameter of 175 mm. Determine the length of the secondpipe if a flow rate of 0.065 m3/s is required at the outlet of the second pipe. The first pipehas a friction coefficient of 0.008 (Darcy) and the second pipe has a friction coefficient of0.005 (Darcy). Consider all losses.
A flocculator is 16 ft (4.88 m) deep, 40 ft (12.2 m) wide, and 80 ft (24.4 m) long. The flow of the water plant is 13 mgd (20 cfs, 0,57 m3/s).Rotating paddles are supported parallel to four horizontal shafts. The rotating speed is 2.0 rpm. The center line of the paddles is 5.5 ft (1.68 m) from the shaft (mid-depth of the basin). Each shaft equipped with six paddles. Each paddle blade is 10 in (25 cm) wide and 38 ft (11.6) long. Assume the mean velocity of the water is 28 percent of the velocity of the paddles and their drag coefficient is 1.9.55 p.Estimate:(a) the difference in velocity between the paddles and water(b) the useful power input(c) the energy consumption per million gallons (Mgal)(d) the detention time(e) the value of G and Gt at 60 oF(f) the loading rate of the flocculator• Find velocity differential v• Find P• Determine energy consumption E• Determine detention time t• Compute G and Gt• Compute the loading rate
A pump is required to transfer water at the rate of 350 kg/s from an open sump to an open storage tank located 30m above the pump. The suction pipe is 350mm in diameter and 12m in length, and the delivery pipe is 550mm in diameter and 40m in length. The friction factor of the pipe system is f=0.005. Q1. Calculate the maximum height at which the pump may be placed above the sump, so that pressure at the inlet is not less than -80 kPa Q2. Calculate the energy to be supplied by the pump per unit mass of water transferred Q3. Calculate the input power required by the pump, which is 60 % efficient
A pump is required to transfer water at the rate of 350 kg/s from an open sump to an open storage tank located 30m above the pump. The suction pipe is 350mm in diameter and 12m in length, and the delivery pipe is 550mm in diameter and 40m in length. The friction factor of the pipe system is f=0.005. Q1. Calculate the maximum height at which the pump may be placed above the sump, so that pressure at the inlet is not less than -80 kPa (gauge) (m) Q2. Calculate the energy to be supplied by the pump per unit mass of water transferred (J/Kg) Q3. Calculate the input power required by the pump, which is 60 % efficient (kW)
Calculate the mechanical power [hp] required on the pump shaft considering the hydraulic system Shown. The pipe is made of commercial steel (roughness = 0.0002 ft) and has two different diameters, up to the pump inlet the pipe is 2 inches with a length of 100ft and from the pump outlet the pipe is 4 inches with 400ft. All elements are screwed The flow rate circulating through the system is 0.5 ft3/s and the efficiency of the pump is 85%. The density of water is 1.94 slug/ft3 and has a viscosity kinematics 1.1x10-5 ft2/s