| 摘要 |
The present invention relates to a rainwater storage apparatus using multi-stage separation, including a storage tank (20), which is formed inside a pre-installed septic tank and stores rainwater; a water-permeable packaging material (1), which is arranged in the upper part of the storage tank (20) and collects rainwater; at least one manhole (3), which discharges the rainwater collected in the water-permeable packaging material (1) to the storage tank (20); a drain pipe (4), which intercepts the rainwater; and at least one manhole (3), which collects the intercepted rainwater into the storage tank (20). The storage tank (20) includes an inflow path (7), which the rainwater flows in; at least one separation wall (6), which divides the storage tank (20) into at least two sections; and an outflow path (8), which the rainwater is discharged from. |
