| 摘要 |
<p>PURPOSE:To increase deodorizing efficiency by providing a heat exchanger between a composting device and a deodorizing device, connecting the composting device with the deodorizing device by an air transfer pipe, circulating malodorous gas by a circulating pipe through an air flow regulating valve and connecting the heat exchanger with the deodorizing device by an exhaust pipe. CONSTITUTION:For instance, in fowl droppings composting device 1, exhausted malodorous gas is introduced into a heat exchanger 20 and dissipated heat to remove contained water content. Then, malodorous gas of low temperature and with low water content is circulated into the composting device 1 and mixed with the malodorous gas generated by fowl droppings under treatment to absorb water content of said malodorous gas and lower the temperature. As a result, drying speed of fowl droppings is increased, and highly concentrated ammonia in the circulated malodorous gas is mixed with the fowl droppings under treatment to turn into a compost-constituting component to reduce ammonia concentration. That is a part of treated malodorous gas is circulated into the composting device 1 and other part thereof regulated in the air amount is exhaused into a deodorizing device 10 in a state of reduced ammonia content.</p> |
