| 摘要 |
<p>PCT No. PCT/CA91/00029 Sec. 371 Date Sep. 29, 1993 Sec. 102(e) Date Sep. 29, 1993 PCT Filed Jan. 31, 1991 PCT Pub. No. WO93/15942 PCT Pub. Date Aug. 19, 1993.There is disclosed a fermentation device having a peripherally extending wall, a gas-impermeable cover extending over the surface of the device, and attached at its peripheral edge to a top part of the wall, and a gas collection conduit extending for at least part of the periphery of the device within the wall. This device may be used for wastewater treatment enclosures.</p> |
