you wish to design a fixed-film treatment process that will achieve an efluent concentration of 100 mg/l of BODL when the influent concentration is 5,000 mg BODL/l. You know that your process will be a fixed-bed process that will have mixing characteristics intermediate between plug flow and complete-mix. You use four reactor segments in series to describe the mixing. Reasonable kinetic parameters for the BOD utilization are
If you have a tolal of 1,000 m3/d, approximately how much fixed-film surface area (m2) is needed to achieve your goal? Use the normalized loading curves ( Chapter 4) to solve this problem.
You are called as the hight-priced expert because an engineering consultant cannot figure out if it is possible to design and fluidized-bed biofilm reactor (with effuent recycle) to achieve his client's objectives. Here are the facts:
a, The industry must treat 1,000 m3/d of a wastewater that contains 5,000 mg/l of BODL.
b, The goal is to reduce the original substrate BODL to 100mg/l.
c, The consultant has used chemostats to estimate kinetic parameters for the wastewater BODL at 20