| 摘要 |
A tubular membrane diffuser for a wastewater aeration system. The diffuser includes a pipe having spaced apart outlet ports and a porous membrane sleeved around the pipe for discharging air in bubbles. An adjustable plug can be located at the outboard end of the diffuser pipe in a fully buoyant application, near the inboard end of the diffuser pipe in a non-buoyant application where water occupies the outboard half of the diffuser, or anywhere between the diffuser pipe ends in a partially buoyant application. The plug includes a ring with a tapered bore and a tapered plug that threads into the bore to radially expand the ring for securing it in place.
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