| 摘要 |
<p>PCT No. PCT/EP93/01142 Sec. 371 Date Jan. 30, 1995 Sec. 102(e) Date Jan. 30, 1995 PCT Filed May 10, 1993 PCT Pub. No. WO93/23350 PCT Pub. Date Nov. 25, 1993A composting unit is disclosed having a ventilation system for closed rotting units. A number of fans, passageways, and valves are designed and arranged in such a way that they ensure flow of conditioned circulating air, as desired, over and/or through and/or around a static or agitated stack of composting material.</p> |
