| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydroponics system which can efficiently mix a hydroponics culture liquid with a large amount of fine microbubbles (fine air bubbles) and can stably and can thereby continuously supply the culture liquid having a large dissolved oxygen content. SOLUTION: This microbubble hydroponics system 11 is obtained by disposing a port 3 for extruding a microbubble culture liquid A at one end of a conical member 2 having an approximately funnel-like outer shape, attaching a funnel wall 5 having an air-sucking port 4 at the center to the opposite side of the conical member 2 to form a microbubble generator 1, further forming inflow pipes 6, 6 for a nutritive liquid B at angles along the inner wall of the conical member 2 at two mutually facing positions on the side circumferential portion of the funnel wall 5 of the conical member 2 to form an air-liquid mixing device 7, and then disposing the air-liquid mixing device 7 together with a pump 10 in a circulation route pipe 9 connected to a culture tank 8. |
