| 摘要 |
<p>PURPOSE:To execute deodorization, by making malodorous gaseous flow to a device which has piled various layers from the lower part to the upper part. CONSTITUTION:Malodorous gas 10 generated from a city dust composting plant is led into a gas conduit 6 from a suction blower 7, and is exhausted to a pebble layer 3 from its gas exhaust hole 5. This malodorous gas is dispersed while it is passing through a gravel layer 2 of its upper layer, and reaches a soil layer 1 of black earth. The dispersed malodorous gas 10 passes through the soil layer 1, and during this time, a malodorous substance is adsorbed and deodorized, becomes no-odor gas 11 from the surface of said layer 1, and is exhauted into the air. Black earth is suitable for deodorizing soil since there are a large amount of humas contents, moisture and porosity, and also its base substitution capacity is large. Accordingly, a water soluble substance such as ammonia, etc. is dissolved and removed easily, and actinomycete in the humas contents execute oxidation and decomposition of the malodorous substance. As for thickness of the soil layer 1, 100-800mm. are desirable.</p> |
