TORAY MBR
Instruction Manual
06-G-MB2-NHPAC-220801
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(2) Air Diffuser Cleaning Procedure for Multiple Modules - Practical Design
For multiple module operation, the flushing procedure described in the previous section can
be applied for each module, or a more convenient and simple approach is shown in Fig.
VIII-1. Each inlet point of the air diffuser should be connected to each of the two air headers,
and each header equipped with two valves (automatic valves are strongly recommended) at
the inlet point and end point (both higher than water level). The procedure and standard
duration time of each action are as follows:
Flushing: to clean air diffusers, 1 to 5 minutes for each flushing event.
Purge: to blow out inside header pipes, around 30 seconds for each purge event.
Filtration must be stopped prior to starting the air diffuser cleaning procedure and restarted
one minute after air scouring is started. Please take care not to allow sludge to flow toward
the blower.
Fig.VIII-1 Air Diffuser Cleaning Procedure for Multiple Modules
Air scouring
1) Purge (1/3)
2) Flushing (1/2)
3) Purge (2/3)
4) Flushing (2/2)
5) Purge (3/3)
After 5) back to air scouring.
Sludge & Air
Sludge & Air
Air
Air
Air