What is the flow rate of cell suspension from the membrane

Assignment Help Mechanical Engineering

Reference no: EM13629124

A battery of cylindrical hollow-fiber membranes is operated at steady state to concentrate a bacterial suspension from a fermenter. 350 kg min-1 broth is pumped through a stack of hollow-fiber membranes as shown. The broth contains 1% bacteria (by weight); the rest may be considered water. Buffer solution enters the annular space around the membrane tubes at a flow rate of 80 kg min-1; because broth in the membrane tubes is under pressure, water is forced across the membrane into the buffer. Cells in the broth are too large to pass through the membrane and pass out of the tubes as a concentrate. The aim of the membrane system is produce a cell suspension containing 6% biomass.

(a) What is the flow rate of cell suspension from the membrane tubes?

(b) What is the flow rate from the annular space? Assume the cells are not active, i.e. they do not grow. Assume further that the membrane does not allow any molecules other than water to pass from annulus to inner cylinder, or vice versa.

Reference no: EM13629124

Questions Cloud

Water vapor is cooled in a closed rigid tank from 540 : water vapor is cooled in a closed rigid tank from 540 degrees celsius and 100 bar to a final temperature of 270 degrees

A standard deviation of 003 mm if 250 shaft and hubs are : a hub and shaft are said to meet satisfactory fit if the clearance between the two is between 0.03 and 0.18 mm. the

Calculate the temperature difference across the thickness : a explain why the apparatus of problem 2.17 cannot be used to obtain an accurate measurement of the aerogels thermal

Aj auction sells art drawings of little known artists at : aj auction sells art drawings of little known artists at auction. the dealer is interested in the relationship between

What is the flow rate of cell suspension from the membrane : a battery of cylindrical hollow-fiber membranes is operated at steady state to concentrate a bacterial suspension from

What is the minimum power required to drive the heat pump : many modern houses use heat pumps for winter heating and then their owners reverse the cycle and enjoy summer cooling

Te rotation of rod oa about o is defined by the relation : the rotation of rod oa about o is defined by the relation ? 0.5e -0.8tsin3pt where ? and t are expressed in radians and

If the required input to run the pump is developed by a : a a reversible heat pump is used to maintain a temperature of 0c in a refrigerator when it rejects the heat to the

In kidney dialysis a persons blood is passed through a bath : in kidney dialysis a persons blood is passed through a bath that contains several ions and molecules. the blood is

User Account

All Pages