| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof cover which achieves simplification and weight reduction of a structure and simplification of installation, while suppressing the increase of treated water by preventing rainwater from infiltrating into a weir for receiving leakage water from storage tanks.SOLUTION: A waterproof cover 11 arranged between a plurality of storage tanks 100 with drainage apparatuses includes: a plurality of mounting parts 21, 22 capable of being arranged in a manner to be along upper edge parts 101 of the storage tanks 100 and be superposed on the upper edge parts 101; and cover parts 23, 24 which connect the plurality of mounting parts 21, 22 and which incline downward to the plurality of mounting parts 21, 22.SELECTED DRAWING: Figure 6 |
