Three-dimensional electrode reaction device and method for removing COD in wastewater

A reaction device and three-dimensional electrode technology, applied in chemical instruments and methods, water/sewage treatment, light water/sewage treatment, etc., can solve problems such as low removal efficiency, and achieve short treatment time, efficient removal, and improved utilization. low rate effect

Active Publication Date: 2021-10-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method for removing COD in wastewater improves the problem of low removal efficiency of traditional CO

Method used

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  • Three-dimensional electrode reaction device and method for removing COD in wastewater
  • Three-dimensional electrode reaction device and method for removing COD in wastewater

Examples

Experimental program
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Example Embodiment

[0032] Example 1

[0033] See figure 1 This embodiment provides a three-dimensional electrode reaction apparatus including a groove body 8, a groove body 8 for placing a variety of components for electrochemical reactions and photocatalytic reactions, and provides a reaction site for electrochemical reactions and photocatalytic reactions. In the embodiment of the present invention, the groove body 8 is a long square structure, and of course, it is, it is also possible to use other geometries in the prior art.

[0034] The groove body 8 is placed on the ground or platform, and the groove body 8 contacts the ground or near the side of the ground as the bottom, and the bottom is opposite to the bottom, the top may be a closed structure, or an opening structure.

[0035] The liquid port 2 and the liquid port 5 are provided on the groove body 8, and the inlet 2 and the liquid port 5 are all located on the side wall of the groove body 8, and the other opposite the outer end of the liqui...

Example Embodiment

[0044] Example 2

[0045] The embodiment of the present invention provides a method of removing COD in wastewater, and utilizing the three-dimensional electrode reaction apparatus of Example 1.

[0046] Specifically, the wastewater is taken from the industrial waste water generated by a refinery, its main characteristics are: COD content is 3402 mg / L.

[0047] The wastewater injected into the groove from the inlet port, and the anode plate and the cathode plate connected to the negative electrode and the positive electrode on both sides of the groove body.

[0048] The anode plate is selected from the graphite plate, the cathode plate is selected with a stainless steel plate, the pitch of the anode plate and the cathode plate is 8 cm, and the voltage of the DC power supply is 20V. Turn on the light source, the light source selects high pressure mercury lamp.

[0049] The particle electrode 3 is selected from 5 mm in diameter and 10 mm in length. Photocatalytic fillers use nano-t...

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Abstract

The invention relates to the technical field of wastewater treatment, in particular to a three-dimensional electrode reaction device and a method for removing COD in wastewater. The three-dimensional electrode reaction device comprises a tank body, a plurality of particle electrodes and a plurality of photocatalytic fillers; each particle electrode and each photocatalytic filler are arranged in the tank body, and each particle electrode and each photocatalytic filler are arranged at an interval, so that the plurality of particle electrodes are not in contact with each other. Insulating particles between the particle electrodes are replaced with the photocatalytic fillers, so that the problem that the utilization rate of an electrochemical reactor is low due to the insulating particles can be solved, meanwhile, the photocatalytic fillers can further conduct photocatalytic reaction, then the photocatalytic technology and the electrochemical technology are coupled, and by utilizing the photoelectric synergistic effect, pollutants in the industrial wastewater are subjected to an oxidation-reduction reaction in the reactor to be degraded, the target of '1+1>2' is achieved, and COD in the industrial wastewater is efficiently removed.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a three-dimensional electrode reaction device and a method for removing COD in wastewater. Background technique [0002] With the continuous development of industry, various resource and environmental problems brought about by industrial production are becoming more and more serious, and industrial wastewater treatment has become the focus and difficulty of current water pollution control. In water quality monitoring and analysis, chemical oxygen demand (COD) is an important index to evaluate the degree of water pollution, which reflects the degree of water pollution by reducing substances. The higher the COD content, the higher the content of reducing substances (such as organic matter) in the water body. On the one hand, the reducing substances contained in the water body can reduce the dissolved oxygen content in the water body, resulting in the death of aquatic o...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/30
CPCC02F1/46114C02F1/30C02F1/467C02F2001/46133C02F2305/10Y02W10/37
Inventor 李程崔新安王洪彬王雪于珊珊
Owner CHINA PETROLEUM & CHEM CORP
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