Composting box incorporates first box holding material at advanced stage of decomposition

摘要

A compositing assembly holds bio-degradable matter forming a bed (18, 20, 22) on an air-permeable support (2, 70). The bed (18, 20, 22) is exposed to a humidifier and air washer (30 formed by hollow chambers (26, 28) linked to axial flow air passages (32, 24) and incorporates a number of water discharge sprays as described in earlier Patent 4416686. The process comprises: (a) the bed-support (2, 70) is interrupted by one or more boxes (14, 16) which are open above and hold bio-degradable material in an advanced stage of decomposition; (b) a second similar box (18) is located immediately adjacent to the first (14, 16), holding bio-degradable material in an earlier stage of decomposition, and through which air discharged from the air washer (30) flows from top to bottom