| 摘要 |
PROBLEM TO BE SOLVED: To provide a mounting structure of a partition plate suitable even for mounting a deformed partition plate having a bent part in a tank. SOLUTION: Recessed or protruding ribs 8a protruding into the inside of a septic tank are formed on the outer tank 8 of the septic tank. The both ends of a partition plate 9 are overlapped on the ribs 8a in the inside of the septic tank and the partition plate 9 and the ribs 8a are firmly fixed with a fixing material in the overlapped part. Fixing by the fixing material is carried out by using an adhesive material, by fitting the recessed grooves and protruding grooves, by using joining tools or the like or by combining the above means.
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