Treatment Plant Operator Exam Study Guide Answers

What are the two methods or operational modes of membrane biologic reactor treatment units? The answer to this question is D, internal and sidestream. In areas where space is very limited, or water reuse is necessary, membrane bioreactor treatment has been found to be a viable alternative. MBRs use either an internal (the unit is installed within the aeration basin) or sidestream (the unit is a separate module from the aeration basin) treatment. Many activated sludge plants may be modified to accommodate the MBR module. MBRs are unique as no clarifier is necessary. The effluent is removed by permeating through the membranes