| 摘要 |
<p>PURPOSE:To purify waste hot water while the heat of the waste hot water is collected by a method wherein the outer surface of a heat collecting coil for collecting the heat of the waste water is made to serve as a purifying contact member. CONSTITUTION:The waste hot water is introduced into a waste hot water tank 8 from a waste hot water inlet port 4. The waste hot water is purified by coming into contact with an organic film attached to the surface of the heat exchange coil serving as the contact member while it passes along the coil and the heat of the waste hot water is collected while water flows through the heat exchange coil 2 from the inlet port 1 and discharged from the outlet port 3 of the coil. Further, air bubbles are generated from a vent port 6 to thereby promote the propagation of aerobic bacteria and at the same time, to agitate the waste hot water so as to increase the heat exchange and heat transfer efficiencies.</p> |
