| 摘要 |
The present invention relates to a rainwater storage tank including a water quality management facility without power and a cleaning facility. The rainwater storage tank comprises a concrete storage structure; a wall screen collecting and dewatering foreign substances; a lattice-shaped multi-hopper collecting deposited sludge; a sludge suction facility sucking and removing the collected sludge as the cleaning facility of the tank; and a washing facility washing contaminant residues. Therefore, the present invention collects and dewaters the foreign substance collected in the wall screen without power and enables a user to clean the inside of the tank where odor and harmful gas are generated without coming inside the tank. The present invention also allows the user to easily maintain the tank and reduces water quality management costs and cleaning cost. |
