A disc-type electrocatalytic water treatment device

A water treatment device and electrocatalysis technology, which is applied in water/sewage treatment, water/sewage treatment equipment, water/sludge/sewage treatment, etc., can solve problems such as unstable effects, high power consumption, and obstacles to wide application. Achieve the effect of increasing the placement density, increasing the response time, and reducing the arrangement spacing

Active Publication Date: 2021-08-31
陕西镐丰京诚环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its shortcomings such as high power consumption and unstable effect in actual use, it hinders its wide application.

Method used

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  • A disc-type electrocatalytic water treatment device
  • A disc-type electrocatalytic water treatment device
  • A disc-type electrocatalytic water treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Ruthenium Oxide Coated Titanium Anode Disk Electrocatalytic Reactor for Treatment of Saline Industrial Wastewater:

[0043] a, the cathode pressing plate 8 is a stainless steel cathode pressing plate, and the anode plate 9 is a titanium anode plate coated with ruthenium oxide;

[0044] b. Use a multi-stage centrifugal pump to pump salt-containing industrial waste water from the water inlet 12 at a flow rate of 1m / s, and the fluid passes through the channels around the central hole of the cathode pressure plate 8 to form a return flow;

[0045] c. Adjust the applied electric field voltage to 2.0V and the current density to 10mA / cm 2 ;

[0046] d. After running stably for 1 hour, take a sample from the water outlet 11, and detect the water color, ammonia nitrogen, and COD indicators.

[0047] The influent COD is 483mg / L and ammonia nitrogen is 232mg / L, which can completely remove the chroma in the water body, the effluent COD is reduced to 40mg / L, and the ammonia nitrogen...

Embodiment 2

[0049] Disc-type electrocatalytic reactor with lead oxide coated titanium anode for the treatment of saline industrial wastewater:

[0050] a. The cathode plate 8 is a stainless steel cathode plate, and the anode plate 9 is a lead oxide-coated titanium anode plate;

[0051] b. Use a multi-stage centrifugal pump to inject saline industrial waste water from the water inlet 12 at a flow rate of 2m / s, and the fluid passes through the channels around the central hole of the cathode pressure plate 8 to form a return flow;

[0052] c. Adjust the applied electric field voltage to 3.0V and the current density to 20mA / cm 2 ;

[0053] d. After running stably for 1 hour, take a sample from the water outlet 11, and detect the water color, ammonia nitrogen, and COD indicators.

[0054] The influent COD is 483mg / L and ammonia nitrogen is 232mg / L, which can completely remove the chroma in the water body, the effluent COD is reduced to 45mg / L, and the ammonia nitrogen is reduced to 1mg / L, me...

Embodiment 3

[0056] a. The cathode plate 8 is a stainless steel cathode plate, and the anode plate 9 is an antimony-tin oxide-coated titanium anode plate;

[0057] b. Use a multi-stage centrifugal pump to pump salt-containing industrial waste water from the water inlet 12 at a flow rate of 3m / s, and the fluid passes through the channels around the central hole of the cathode pressure plate 8 to form a return flow;

[0058] c. Adjust the applied electric field voltage to 4.0V and the current density to 30mA / cm 2 ;

[0059] d. After running stably for 1 hour, take a sample from the water outlet 11, and detect the water color, ammonia nitrogen, and COD indicators.

[0060] The influent COD is 483mg / L and ammonia nitrogen is 232mg / L, which can completely remove the chroma in the water body, the effluent COD is reduced to 42mg / L, and the ammonia nitrogen is reduced to 1.2mg / L, meeting the first-class standard for comprehensive sewage discharge.

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Abstract

A dish-type electrocatalytic water treatment device, comprising a shell with a water inlet and a water outlet, the shell is provided with a plurality of cathode pressure plates and anode plates stacked at intervals in sequence, and both the cathode pressure plate and the anode plate have a central hole , the central axis passes through the central hole to position and compress the cathode plate and the anode plate to form a disc structure and block the two at the position of the center hole. The waste water to be treated enters from the water inlet and is sequentially between the cathode plate and the anode plate. The reentrant flow forms a pathway and exits the outlet. The present invention utilizes the disc design to increase reaction mass transfer efficiency and reaction path, and improve the reaction efficiency of electrocatalytic oxidation; the electrocatalytic electrode adopts a cathode and anode staggered lamination method, which increases the electrode placement density, thereby enhancing the reaction efficiency. The results of the treatment of salt-containing industrial wastewater show that the method has good electrocatalytic oxidation ability, can significantly improve the removal efficiency of chroma, ammonia nitrogen and COD in high-salt wastewater, and make the effluent meet the first-class standard of comprehensive sewage discharge.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a dish-type electrocatalytic water treatment device. Background technique [0002] Electrocatalytic water treatment technology is an efficient water treatment technology for rapid oxidation and removal of organic pollutants, and has broad application prospects. The basic principle of electrocatalytic water treatment technology is to reduce or remove pollutants from wastewater by direct electrochemical reaction or indirect electrochemical conversion on electrodes. It can be divided into direct electrolysis and indirect electrolysis. Direct electrolysis refers to the removal of pollutants from wastewater by direct oxidation or reduction on electrodes. Indirect electrolysis refers to the use of electrochemically generated redox substances (such as chlorate, hypochlorite, H 2 o 2 and O 3 and solvated electrons, ·HO, ·HO 2 free radicals) act as reactants or catalysts to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/467
CPCC02F1/46104C02F1/46109C02F1/4672C02F1/4676C02F2001/46152C02F2201/46105
Inventor 朱云庆马宏瑞牛军峰
Owner 陕西镐丰京诚环境科技有限公司
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