| 摘要 |
PURPOSE:To recirculate water in a tank, by providing a partition wall in a water channel and communicating both sides of said water channel by the water conduit passing below the partition wall. CONSTITUTION:When air is introduced into an upwardly directed flow part 5a under pressure by a blower 7 through a regulation valve 8 and an air diffusion device 6, the rising stream of a gas-liquid mixture system is generated in the upwardly directed flow part 5a. With said rising stream, the water present in the lower part of a downwardly directed flow part 5b rapidly transfers to the lower part of the upwardly directed flow part 5a through a communication part 4 and a falling stream is generated in the downwardly directed flow part 5b. By this mechanism, a recirculating stream started from the lower part of the upwardly directed flow part 5a and passing through a horizontal flow part 1a and the downwardly directed flow part 5b to be returned to the upwardly directed flow part 5a is formed. By this method, the water in the tank is recirculated and a good condition can be imparted to the propagation of bacterial. |
