| 摘要 |
PROBLEM TO BE SOLVED: To provide a recovery device of heat of gas that can effectively prevent a waste of thermal energy and enhance oxygen concentration in a gas to be supplied to a water treatment apparatus to efficiently decompose an organic material by an aerobic microorganism, and to provide the water treatment apparatus equipped with the recovery device of heat of gas.SOLUTION: A water treatment apparatus equipped with a recovery device of heat of gas includes a gas transfer device 10, a water treatment apparatus 30 to treat water using a gas sent from the gas transfer device 10 through a gas transfer pipe 20, and a recovery device 70 of heat of gas to recover heat of the gas being sent by a heat exchanger 73 installed on the gas transfer pipe 20. The recovery device 70 of heat of gas serves to recover the heat of the gas in the pipe that has been radiated so far to the atmosphere and thus prevents a waste of thermal energy effectively. Further, the recovery device 70 of heat of gas serves to absorb the heat of the gas flowing in the gas transfer pipe 20, lowering the temperature of the gas, which enhances gas density of the gas to be supplied to the water treatment apparatus 30, that is, oxygen density (oxygen concentration) leading to efficient decomposition of an organic material by an aerobic microorganism. |
