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Method for treating hydrochloric acid wastewater by electrolytic process and electrolytic tank for electrolyzing hydrochloric acid wastewater

A technology of electrolytic cell and electrolysis method, which is applied in the field of electrolytic treatment of hydrochloric acid wastewater, electrolytic cell for electrolysis of hydrochloric acid wastewater, and treatment of hydrochloric acid in wastewater. cost effect

Pending Publication Date: 2021-05-07
云南驰宏国际锗业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that a large amount of high-chlorinated wastewater will be produced during the treatment of existing hydrochloric acid wastewater, which will cause environmental pollution and high treatment cost, and provide a method for treating hydrochloric acid wastewater with good treatment effect and low cost by electrolysis Method and electrolytic cell for electrolysis of hydrochloric acid wastewater

Method used

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  • Method for treating hydrochloric acid wastewater by electrolytic process and electrolytic tank for electrolyzing hydrochloric acid wastewater
  • Method for treating hydrochloric acid wastewater by electrolytic process and electrolytic tank for electrolyzing hydrochloric acid wastewater
  • Method for treating hydrochloric acid wastewater by electrolytic process and electrolytic tank for electrolyzing hydrochloric acid wastewater

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Embodiment 1

[0036] The present invention is the method for treating hydrochloric acid wastewater by electrolysis, specifically comprising the following steps:

[0037] S1: dilute the hydrochloric acid wastewater with industrial water to obtain the electrolyte solution, the concentration of HCL in the electrolyte solution is 3%;

[0038] S2: The electrolyte to be injected into the anode tank through the electrolyte inlet on the electrolytic cell, and the injected electrolyte to be injected gradually fills each anode chamber through the dark hole inside the anode tank;

[0039] S3: The conductive liquid is injected into the cathode tank through the conductive liquid inlet on the electrolytic cell, and the injected conductive liquid gradually fills each cathode chamber through the dark hole inside the cathode tank; the conductive liquid is preferably NaCl brine, and the NaCl content in the conductive liquid is 5 %;

[0040] S4: Power on to electrolyze the electrolyte solution in the electro...

Embodiment 2

[0044] The present invention is the method for treating hydrochloric acid wastewater by electrolysis, specifically comprising the following steps:

[0045] S1: dilute the hydrochloric acid wastewater with industrial water to obtain the electrolyte solution, the concentration of HCL in the electrolyte solution is 5%;

[0046] S2: The electrolyte to be injected into the anode tank through the electrolyte inlet on the electrolytic cell, and the injected electrolyte to be injected gradually fills each anode chamber through the dark hole inside the anode tank;

[0047] S3: The conductive liquid is injected into the cathode tank through the conductive liquid inlet on the electrolytic cell, and the injected conductive liquid gradually fills each cathode chamber through the dark hole inside the cathode tank; the conductive liquid is preferably NaCl brine, and the NaCl content in the conductive liquid is 5 %;

[0048] S4: Power on to electrolyze the electrolyte solution in the electro...

Embodiment 3

[0052] The present invention is the method for treating hydrochloric acid wastewater by electrolysis, specifically comprising the following steps:

[0053] S1: dilute the hydrochloric acid wastewater with industrial water to obtain the electrolyte solution, the concentration of HCL in the electrolyte solution is 10%;

[0054] S2: The electrolyte to be injected into the anode tank through the electrolyte inlet on the electrolytic cell, and the injected electrolyte to be injected gradually fills each anode chamber through the dark hole inside the anode tank;

[0055]S3: The conductive liquid is injected into the cathode tank through the conductive liquid inlet on the electrolytic cell, and the injected conductive liquid gradually fills each cathode chamber through the dark hole inside the cathode tank; the conductive liquid is preferably NaCl brine, and the NaCl content in the conductive liquid is 5 %;

[0056] S4: Power on to electrolyze the electrolyte solution in the electro...

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Abstract

The invention discloses a method for treating hydrochloric acid wastewater by an electrolytic method and an electrolytic tank for electrolyzing the hydrochloric acid wastewater, and relates to the technical field of industrial wastewater treatment. The electrolytic tank for hydrochloric acid wastewater electrolysis comprises anode tanks and cathode tanks, the anode tanks and the cathode tanks are alternately arranged side by side in the vertical direction, and first fixing protrusions are integrally formed at the two ends of the two symmetrical outer side walls of the anode tanks and the cathode tanks correspondingly; a conductive liquid inlet, an electrolyte outlet, a conductive liquid outlet and an electrolyte inlet are respectively formed in the four first fixed bulges; the conductive liquid inlet and the electrolyte outlet are formed in the anode tank and the cathode tank, and the conductive liquid outlet and the electrolyte inlet are respectively aligned up and down. Through the arrangement of the anode tank, the cathode tank, the hydrogen outlet, the chlorine outlet, the first through groove, the second through groove, the third through groove and the fourth through groove, and the chlorine content in discharged water can be effectively reduced; meanwhile, hydrogen and chlorine after electrolysis can be recycled, and the cost is effectively saved.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a method for electrolytically treating hydrochloric acid wastewater and an electrolytic cell used for electrolysis of hydrochloric acid wastewater, which is mainly used for the treatment of hydrochloric acid in wastewater produced by germanium. Background technique [0002] In the existing germanium production process, a large amount of dilute waste hydrochloric acid will be produced. In the face of this dilute waste hydrochloric acid, the existing technical means is to add an alkaline solution to the waste acid for neutralization and then discharge it. Although this technical means can Solve the problem of acid in the waste liquid, but the waste liquid after neutralization will contain 30-40g / L high chlorine wastewater, there is still the problem of environmental pollution, and the cost of the entire neutralization treatment is high, so it is n...

Claims

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Application Information

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IPC IPC(8): C02F1/461C25B1/26C02F101/12C02F103/16
CPCC02F1/461C02F1/46104C25B1/26C02F2201/4612C02F2201/4614C02F2201/46135C02F2201/46115C02F2201/4618C02F2209/29C02F2101/12C02F2103/16
Inventor 崔丁方何兴军彭明清缪彦美陈琳王力飞子光平陈知江朱家义陈俊肖廖吉伟
Owner 云南驰宏国际锗业有限公司
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