Dinitrodiphenyl ether wastewater treatment device and treatment process thereof

Abstract

The invention relates to a dinitrodiphenyl ether wastewater treatment device. The device comprises a plurality of electrocatalytic oxidation apparatuses, a gas-liquid separator, a tail gas absorptiontower A and a tail gas absorption tower B, the electrocatalytic oxidation apparatuses comprise an electrocatalytic oxidation apparatus A, an electrocatalytic oxidation apparatus B and an electrocatalytic oxidation apparatus C, a water inlet of the electrocatalytic oxidation apparatus A is connected to a circulating pump, a water outlet of the electrocatalytic oxidation apparatus C is connected toa liquid inlet of the gas-liquid separator through a pipeline, a liquid outlet pipe is arranged below the gas-liquid separator, a wastewater outlet is formed in one side of the gas-liquid separator, the wastewater outlet is communicated with a collecting tank, a gas outlet of the gas-liquid separator is communicated with a tail gas absorption tower A, a gas outlet of the tail gas absorption towerA is connected to an induced draft fan, and an outlet of the induced draft fan is communicated with a tail gas absorption tower B. The invention has the advantages that: the space utilization rate isgreatly improved, the transverse space occupation of the traditional equipment is changed into longitudinal space occupation, and the floor area is small.

Description

technical field [0001] The invention relates to the field of dinitrodiphenyl ether wastewater treatment, in particular to a dinitrodiphenyl ether wastewater treatment device and a treatment process thereof. Background technique [0002] Many types of pollutants are produced in industrial production, and the types and concentrations of pollutants produced by different industries are significantly different. Chemical treatment is a wastewater treatment method that separates and removes dissolved and colloidal pollutants in wastewater or converts them into harmless substances through chemical reactions and mass transfer. In the chemical treatment method, the processing units based on the chemical reaction of dosing are: coagulation, neutralization, redox, etc.; while the processing units based on mass transfer are: extraction, stripping, stripping , adsorption, ion exchange, electrodialysis and reverse osmosis, etc. [0003] Disadvantages of traditional dinitrodiphenyl ether ...

AI Technical Summary

Problems solved by technology

[0004] 1. The traditional oxidation process is difficult to efficiently remove COD, ammonia nitrogen and other pollutants in diphenyl ether wastewater;

[0005] 2. The traditional oxidation process is difficult to effectively remove the wastewater, resulting in lower quality of the subsequent evaporated salt

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