Water quality regulating tank

The utility model belongs to the field of water quality regulation. Specifically, the present utility model relates to a battery, the utility model relates to a water quality regulating tank. The device comprises a pool body, the bottom of the tank body is filled and compacted by sandstone in a layered manner; the compaction coefficient is greater than or equal to 0.95; the replacement compactionthickness is greater than or equal to 100mm; a submersible sewage pump is arranged at the bottom of the tank body; a basket grid is arranged in the middle of the tank body; a plurality of screens arealso arranged between the basket grid and the bottom of the tank body; wherein the bottom of the pool body is an inclined plane with an inclination angle of 5-10 degrees, the submersible sewage pump is further connected with integrated water purification equipment, the water purification equipment is divided into two layers, namely a sludge layer at the bottom and a purification layer at the upperpart, the sludge layer is