1. How do you maintain an even distribution of air to the membranes? How to evaluate the evenness of airflow across the membrane area ? Answer

2. For effective aeration, is it better to use large bubbles or fine bubbles? Answer

3. How often do you need to clean the membranes? Answer

4. Is it necessary to use chemicals to backwash? Will this affect bacterial performance? Answer

5. How long does membrane cleaning take? Answer

6. What is the optimum MLSS level recommended for the MBR process ? Answer

7. Is it better to have a single MBR tank or several tanks ? Answer

8. Can the MBR be operated under gravity e.g. from an overhead tabk ? Answer

9. Is MBR suitable for nutrient removal ? Answer