| 摘要 |
PROBLEM TO BE SOLVED: To provide a culture pool capable of preventing inconvenience such as decomposition by retention of a culture solution and efficiently culturing chlorella while enlarging the area of the culture pool by effectively utilizing a site. SOLUTION: Four tracks 16 are formed along each quadrant at four corners of a culture pool 10 having an outer peripheral wall 10a forming a square shape of mild corners. Approximately three fourths of a part positioned inside the outer peripheral wall 10a in each track 16 are held by supporting leg bodies 18 stood at equal intervals on the bottom 10b of the pool. A space between the supporting leg bodes 18 between the track 16 and the bottom 10b and a space between the supporting leg bodies 18 at both the ends and the outer peripheral wall 10a form flow channels 20. The base part of a stirring arm 24a is rotatably supported in an inland-like part 10c, provided with revolving power from a driving source and the end part of the stirring arm 24a is traveled on the track to rotate the stirring arm 24a.
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