Appeal No. 1998-0425 Page 41
Application No. 08/272,527
6. Apparatus according to claim 1, 2, 3 or 4 wherein the
liquid is wastewater and said impound is equipped for
biological treatment of said wastewater, including aeration
with said treating gas.
7. Apparatus according to claim 1, 2, 3 or 4 wherein the
elements are multipore diffusion elements.
8. Apparatus according to claim 1, 2, 3 or 4 wherein the
elements are free of fastener through-holes.
9. Apparatus according to claim 1, 2, 3 or 4 wherein the
elements have peripheral zones of lesser permeability than the
portions of the elements surrounded thereby.
10. Apparatus according to claim 1, 2, 3 or 4 wherein
the elements have peripheral zones of greater density than the
portions of the elements surrounded thereby.
11. Apparatus according to claim 1, 2, 3 or 4 wherein
the elements have boundary portions with enhanced volumetric
compression ratio relative to the portions of
the elements surrounded thereby.
12. Apparatus according to claim 1, 2, 3 or 4 wherein at
least a major portion of the elements are mounted on their own
individual plenums.
13. Apparatus according to claim 1, 2, 3 or 4 wherein at
least a major portion of the elements have their own
individual flow regulating means.
14. Apparatus according to claim 1, 2, 3 or 4 wherein
the flow regulating means include flow regulating orifices of
fixed or auto-adjustable size positioned beneath said
elements.
15. Apparatus according to claim 1, 2, 3 or 4 wherein at
least a major portion of the elements are mounted on their own
individual plenums and have their own individual flow
regulating means.
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