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Design the membrane portion of the membrane bioreactor based on problem 0 3 . You have chosen a Zenon ZW 5 0 0 D system,

Design the membrane portion of the membrane bioreactor based on problem 03. You
have chosen a Zenon ZW 500 D system, with an operational flux of 15gfd determined through
comparative pilot testing between different available systems as your membrane system. The
operational strategy you want to use is 12min operation followed by 2 min relax. Also you want
a recirculation rate of 4 times the permeate flow rate. Calculate the following:
(i) Calculate the actual design flux (in gfd) based on your operational strategy.
(ii) Calculate the membrane area (ft2). Calculate the number of modules needed.
How many would you actually use? Based on the above calculate the actual
operational flux (in gfd)
(iii) Calculate the recirculation rate?
(iv) Contrary to the example discussed in class, larger submerged systems like
Zenon's system actually do not have a separate membrane tank, They are
actually immersed into and form a part of the bioreactor. Do you have enough
space in your bioreactor to fit all your modules? If not what would you do?Design the membrane portion of the membrane bioreactor based on problem 03(Design the activated sludge component of the membrane bioreactor. Specifically,
determine the SRT, volume, hydraulic residence time, and air flow requirements for the system.
Make sure that your design at a minimum meets the goals for your industrial need (Given: Q =
269.33 m3/d, BOD5=169.8 g/m3 and TSS =89.9 g/m3)). You
have chosen a Zenon ZW 500 D system, with an operational flux of 15 gfd determined through
comparative pilot testing between different available systems as your membrane system. The
operational strategy you want to use is 12 min operation followed by 2 min relax. Also you want
a recirculation rate of 4 times the permeate flow rate. Calculate the following:
(i) Calculate the actual design flux (in gfd) based on your operational strategy.
(ii) Calculate the membrane area (ft2). Calculate the number of modules needed.
How many would you actually use? Based on the above calculate the actual
operational flux (in gfd)
(iii) Calculate the recirculation rate?
(iv) Contrary to the example discussed in class, larger submerged systems like
Zenons system actually do not have a separate membrane tank, They are
actually immersed into and form a part of the bioreactor. Do you have enough
space in your bioreactor to fit all your modules? If not what would you do?
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