Wet oxidation reaction system

Abstract

The invention discloses a wet oxidation reaction system. The reaction system comprises a reactor, a temperature control module, an air intake and exhaust module, a water inflow and drainage module anda distributed control module. Specifically, the reactor body comprises a reaction tank and an internal circulation gas-liquid mixing unit, liquid in the reactor flows in a horizontal direction, gas flows from the bottom up, and is mixed with the liquid flowing in the horizontal direction, and then gas-liquid mixing unit and the air intake and exhaust module are independently controlled respectively; the internal circulation gas-liquid mixing unit comprises a gas-liquid mixing device for sucking gas above the liquid level in the reaction tank and conveying the gas into liquid in the reaction tank for gas-liquid mixing, an aerator pipe and an aerator. The system has the advantages that the gas-liquid mixing process can be reinforced, each module is controlled independently, the oxidation reaction is facilitated, and the reaction process is easy to control.

Description

technical field [0001] The invention relates to the field of oxidation reactors, in particular to a wet oxidation reaction system. Background technique [0002] Wastewater treatment technologies include biochemical treatment, advanced oxidation and wet oxidation. Wet oxidation uses oxygen or oxidants to decompose pollutants into A process with low or no toxic substances. Wet oxidation is a highly versatile organic wastewater treatment technology, which is suitable for treating various types of wastewater. It is an important part of wastewater treatment technology and can make up for many deficiencies in biochemical treatment technology and advanced oxidation technology. Wastewater with high organic concentration produced by various industries, landfill leachate treatment, etc. These wastewater have complex components and are difficult to degrade with traditional biochemical techniques. Using advanced oxidation methods to treat them will bring problems of low efficiency and ...

AI Technical Summary

Problems solved by technology

[0010] The Wetox process adopts a horizontal storage tank reactor, the liquid flow direction is horizontal flow, the gas flows from the bottom of the reactor to the upper part, and is vertically mixed with the horizontal flow liquid, the liquid can be mixed with the gas multiple times, and the mixing effect is good; the Wetox process The disadvantage is that the gas-liquid mixing process, reaction pressure and intake air flow are still uniformly controlled by the intake device, the oxidation reaction process is not easy to control, the internal structure of the reactor is complex, and the use of mechanical stirring to assist gas-liquid mixing is easy to leak

[0011] The reaction system designed by Bayer uses a gas internal circulation device to independently control the gas-liquid mixing process. The pressure and intake flow of the reaction system are independently controlled by the intake device, but a tower reactor is used, and the gas and liquid flow directions are determined by the Down to up, this kind of gas-liquid mixing in the same direction often leads to insufficient mixing

Images