System and method for recovering carbon source particles in primary settling tank

Abstract

A system for recovering carbon source particles in a primary settling tank, provided by the embodiment of the invention, includes an automatic monitoring device, an automatic control device and at least one rotatable baffle plate arranged in the primary settling tank; the automatic monitoring device is used for monitoring data of sewage in the primary settling tank and sending the sewage data to the automatic control device, and the sewage data includes the flow rate of the sewage and the particle size of pollutant particles carried by the sewage; and the automatic control device controls theat least one rotatable baffle plate to change the rotating angle based on the received sewage data in order to change the motion trajectory of the carbon source particles in the sewage. The system canregulate the flow rate of different sewages in the primary settling tank and the flow state of the particle size of the pollutant particles carried by the different sewages, so the original settlingmotion trajectory of the carbon source particles in the sewage is changed, and the descending momentum of the carbon source particles is reduced, and the carbon source particles can flow out of the primary settling tank with the sewage in order to achieve the purpose of recovering the carbon source particles.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of environmental protection, and in particular to a system and method for recovering carbon source particles in a primary sedimentation tank. Background technique [0002] The primary sedimentation tank uses the principle that the sinking speed of suspended matter is greater than the lateral flow velocity of the water flow or the sinking time is shorter than the time for the water flow to pass through the primary sedimentation tank to separate solids and liquids, so as to reduce the concentration of suspended matter in the influent and reduce the suspension of the influent. The purpose of the impact of pollutants on the subsequent biological treatment system of the sewage plant. However, traditional primary sedimentation tanks also lead to the loss of a large amount of high-quality small particle carbon sources while reducing the influent concentration, making the carbon-nitrogen ra...

AI Technical Summary

Problems solved by technology

The former will cause the concentration of suspended solids in the influent to be too high, which will have a significant impact on the biological system, thereby affecting the treatment effect of the entire subsequent process; the latter can significantly improve the efficiency of nitrogen and phosphorus removal in the biological system. However, in the actual application process, sewage The large amount of water treated by the plant leads to the need for a large amount of additional carbon source particles, which increases the cost of water treatment and affects the promotion of use

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