Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The kill of pathogens by disinfection in water treatment can be described by a first order reaction. Complete a reactor comparison for a batch reactor, CSTR and PFR for disinfection. The treatment plant produces 100 L/s of water. The starting concentration of pathogens is 20,000 organisms/L and the desired final concentration is 5 organisms/L. The reaction rate constant is 0.05 per second.
a) Determine the volume of reactor needed for each hydraulic regime.
b) From the volume, calculate a possible L x W x H for each tank. Are the tanks sizes reasonable?
c) Which design would you choose and why? (For the batch system, assume one batch reactor is filling while the other is reacting).
If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?
Refrigerant R-134a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at 120 kPa with a quality of 20 % and leaves at 120 kPa and -20°C. If the compressor consumes 450 W of power and the COP is 1.2
A wheel has an angular acceleration of alpha=(0.5*theta) rad/s^2 , where theta is in radians. a) Determine the magnitude of the velocity of point P located on its rim after the wheel has rotated 2 revolutions.
A reverse osmosis plant desalinates 5*10^6 L/day of feedwater containing 1500 mg/l of salt, yeilding 3*10^6L/day of product water with 75 mg/l of salt. What would be the salt concentration be in the brine
For the vector 100i+150j-300k kN determine its magnitude, the direction, angle alpha, beta, and gamma and the unit vector.
Point F is located just to the left of the 18kN and 25 kN*m couple moment. A) Determine the internal normal force at point E in the compound beam. B) Determine the shear force at point E in the compound beam.
water flows from a lake into a steep natural channel. the water surface elevation of the lake is 97.0 with respect to the datum. the channel properties are given below. determine the flow rate in the channel
Determine the vertical deflection in inches at the midpoint, called point F, between points B and C. Use E=29,000 Ksi, I=800 inches^4, and A=6.0 inches^2 for all members. Use the Virtual Work Method.
Assuming a gage reading in the approach well(haa) of 13 ft, select a Parshall flume capable ofmeasuring a flow of 700 ft/s without submerging the flow.
Find the time for one complete cycle of this motion if the spring constant is 21 N/m. (Assume that once the pendulum ball hits the spring there is no effect due to the vertical movement of the ball.)
A continuous geogrid having a reinforcement coverage ratio equal to 100 percent. A continuous metallic grid consisting of W4 bars having a diameter equal to 5.7 mm, a distance between longitudinal bars equal to 150 mm, a distance between transvers..
Calculate the distance d from the center of the earth at which the force on a particle from the moon is equal to 1.49 times the force on the particle from the earth. The particle is restricted to the line through the center of the earth and the mo..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd