To provide a method for drying a hydrous material by which the dried material hardly forms a lump and is hardly treated anaerobically, and to provide a method for manufacturing compost by which the manufactured compost is hardly form a lump, is hardly treated anaerobically and is kept in a granular state and hardly scatters even when the manufactured compost has about 10% moisture content.
The method for drying the hydrous material in a drying tank 1 having an introduction port 2 in the upper part for introducing the hydrous material, a discharge port 3 in the upper part and an air supply port 5 in the lower part comprises the steps of: suspending the hydrous material in a layered form by supplying compressed air from the air supply port 5; and destroying the layered form of the hydrous material. The method for manufacturing compost by using a compost manufacturing apparatus, which has a compost raw material throw-in port and a discharge port in the upper part and in which a primary fermentation tank and a secondary fermentation tank are arranged at the least by dividing the inside thereof by a partition wall having the predetermined height and an air supply port is arranged in the lower part of each of the primary fermentation tank and the secondary fermentation tank, comprises the steps of: suspending a compost raw material in a layered form by supplying compressed air from the air supply port; and destroying the layered form of the compost raw material.
COPYRIGHT: (C)2006,JPO&NCIPI
Akihiro Nakajima
Tamura Yosuke
Foundation
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