Patent ID: 11905194
Assignee: ZHEJIANG HAIHE ENVIRONMENTAL TECHNOLOGY CO., LTD.
Field: Environmental technology (Chemistry)
Classification: CPC C  Y | IPC C

Claim 2:
3. The denitrification treatment system for the wastewater by the A2O based on the high-oxygen three-phase contact according to claim 2, wherein the nitrification liquid collecting and shunting device comprises a nitrification liquid collecting tank and a nitrification liquid shunting tank, a cylinder of the nitrification liquid collecting tank is an extension of the cylinder of the high-oxygen three-phase contact biological oxidative degradation device; a fence is arranged around the cylinder of the nitrification liquid collecting tank to form a second water storage tray, an elevation of a bottom plate of the second water storage tray is 10 cm to 50 cm lower than an elevation of a sludge sedimentation overflow tank, and an outside of the second water storage tray is provided with a nitrification liquid discharge pipe port, a height of a bottom of the nitrification liquid discharge pipe port is set at a position of 10 cm to 50 cm above the bottom plate of the second water storage tray, an outer end of the nitrification liquid discharge pipe port is connected with a water inlet of the nitrification liquid shunting tank arranged above the annular nitrification liquid anoxic nitrification device, the nitrification liquid shunting tank is arranged above the annular nitrification liquid anoxic nitrification device, and a plane shape is a sector-shaped ring with a same projection as the annular nitrification liquid anoxic nitrification device, and a central angle of a sector is 30° to 180°, a bottom plate of the nitrification liquid shunting tank is an intermediate partition connecting an inner wall of the annular anaerobic treatment device and a cylinder wall of a sedimentation pond, and the nitrification liquid shunting tank is provided with two shunting water pipes, a first pipe of the two shunting water pipes is arranged at a bottom of the bottom plate of the nitrification liquid shunting tank and extends to 10 cm to 100 cm above a bottom of the annular nitrification liquid anoxic nitrification device, and a second pipe of the two shunting water pipes is arranged at an outer wall of the nitrification liquid shunting tank and bends to extend to 10 cm to 100 cm above a bottom of the annular anaerobic treatment device.