Draft tube loop reactor

Abstract

The invention discloses a draft tube loop reactor, and relates to an integrated multi-stage series two-stage cone-shaped draft tube reactor sewage treatment apparatus applied to monosodium glutamate industrial wastewater treatment. The reactor comprises a PLC automatic control system, and a three-point water inlet system, a pulse aeration system, a multi-stage series draft tube reaction apparatus,and a membrane intercepting water discharging system which are respectively connected with the PLC automatic control system, wherein the three-point water inlet system is connected with the multi-stage series draft tube reaction apparatus through a pipeline, the bottom of the multi-stage series draft tube reaction apparatus is connected with the pulse aeration system through a pipeline, and one side of the multi-stage series draft tube reaction apparatus is connected with the membrane intercepting water discharging system through a pipeline. The land occupation area is small, the gas consumption is small, the fluid flow condition is good, and the treatment effect is strong.

Description

technical field [0001] The invention belongs to the technical field of industrial waste water treatment, and in particular relates to an integrated multi-stage series-connected two-stage conical guide tube reactor sewage treatment device for monosodium glutamate industrial waste water treatment. Background technique [0002] my country is a big producer of MSG. In 2015, China’s MSG industry accounted for 75% of the world’s production capacity and more than 60% of the world’s supply. Generally, rice, starch, and molasses are used as the main raw materials for MSG production. Glutamic acid is first extracted through fermentation, and then Using glutamic acid to make monosodium glutamate, a large amount of industrial wastewater will be produced during the refining process. The wastewater is characterized by high chemical oxygen demand COD and total nitrogen content TN, which can reach 1500mg / L and 150mg / L. It is very difficult to meet the first-class A discharge standard of GB89...

AI Technical Summary

Problems solved by technology

In the utility model patent with the publication number CN208292824U, a biochemical enhanced treatment system for starch and monosodium glutamate wastewater is disclosed. There are two submersible mixers, and the anoxic tank is fully enclosed. If there is a problem with the mixer, it is difficult to carry out maintenance work, and it occupies a large area. During the operation, many parts need to be manually operated.

In the invention patent with the publication number CN106904791A, the distribution of the flow field in the aeration oxidation tank is not good. If you want to ensure the aeration intensity, you need to supply a large amount of air, wasting energy

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