Supercritical water reaction device having desalting function

Abstract

The invention discloses a supercritical water reaction device having desalting function, which includes a reactor. A wastewater inlet and an oxygen port are disposed on the top end of the reactor. A pressure meter interface and a thermocouple interface are arranged on the outer side wall of the reactor. A pressure meter is arranged in the pressure meter interface and a thermocouple is arranged inthe thermocouple interface. A precise filter screen and a plurality of separation boards are successively disposed between the inner side walls of the reactor from bottom to top, wherein an adsorptionlayer is arranged on the upper surface of each separation board. A plurality of wastewater channels are formed between a part of edges of each separation board and the inner side walls of the reactor. Two adjacent wastewater channels are in staggered distribution in the vertical direction. A wastewater through hole at the top end is far away from the wastewater inlet. A wastewater outlet and a salt discharge port are arranged on the lower end of the reactor. When being used for treating wastewater, the supercritical water reaction device can greatly reduce the settlement quantity of salts inthe reactor, thereby preventing the reactor from being blocked.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment equipment, and in particular relates to a supercritical water reaction device with a desalination function. Background technique [0002] Supercritical Water (SCW for short) refers to water in a special state whose temperature and pressure are both higher than its critical point (T=374.15°C, P=22.12MPa). Supercritical water has the properties of both liquid and gaseous water. In this state, only a small amount of hydrogen bonds exist. The dielectric constant is similar to that of polar organic solvents. It has a high diffusion coefficient and low viscosity. In the supercritical state, organic matter and oxygen can dissolve with supercritical water, so that the heterogeneous reaction becomes a homogeneous reaction, which greatly reduces the resistance of mass transfer and heat transfer. [0003] Based on the unique physical and chemical properties of supercritical water, supercritica...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a supercritical water reaction device with desalination function to solve the problem that salts are easy to deposit in the reactor in supercritical water technology and cause the reactor to be blocked

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