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Electric pole material of high efficiency electrocatalysis high-grade oxidation technology

An advanced oxidation technology and electrode material technology, which is applied in the field of high-efficiency electrocatalytic advanced oxidation technology electrode materials, can solve the problems of large power consumption, high energy consumption, and large oxygen precipitation overpotential, so as to improve processing capacity, increase specific surface area, The effect of good catalytic activity

Active Publication Date: 2009-05-06
苏州盖依亚生物医药有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of electrode has good electrocatalytic performance for the precipitation of chlorine, good durability, and the ability to inhibit oxygen precipitation. The disadvantages are that the corrosion resistance in the chlor-alkali environment is not ideal, the strength is low, the resistance is high, and the power consumption is large. It is easy to cause unstable production during consumption; (2) In the stage of platinum group metals and lead alloy electrodes, although the performance of such electrodes has been greatly improved compared with graphite, there are also problems such as expensive platinum electrodes, heavy weight of lead electrodes, and oxygen Large precipitation overpotential, low electrochemical catalytic performance, easy deformation and poor conductivity, high energy consumption and other disadvantages, especially in non-sulfuric acid systems, the dissolution of lead cannot be used, and further improvement is needed; (3) Titanium-based coating anode, titanium has Stable oxide layer protection, so that the anode current cannot pass through

Method used

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  • Electric pole material of high efficiency electrocatalysis high-grade oxidation technology
  • Electric pole material of high efficiency electrocatalysis high-grade oxidation technology
  • Electric pole material of high efficiency electrocatalysis high-grade oxidation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Purpose: disinfection of fresh water, removal of part of ammonia nitrogen

[0046] Experimental sample: a pond in a park in Beijing, the water area is about 1000m 2 , water depth 1-2m, water conductivity 725μS·cm -1 Experimental device: a water treatment device assembled by electrocatalytic advanced oxidation technology electrode materials, the distance between functional cathode and anode materials is 1-5cm, parallel 2-10 groups; self-priming water pump, connecting pipeline, flow meter, constant current source power supply (voltage regulation 12V-36V, current adjustment 0A-40A).

[0047] Experimental steps: Fix the system on the bank of the pond, turn on the power supply, the flow rate is 6L / min, the flow rate is ≤2m / s, the input voltage is 220V, the adjusted current is constant 8A, and the voltage is 5.0V-10.0V. The raw water and treated water samples were tested respectively, and the test results are shown in Table 2.

[0048] Table 2. Treatment effect of electroc...

Embodiment 2

[0052] Purpose: to remove algae and sterilize natural seawater

[0053] Experimental sample: Tianjin Xingang ocean-going ship bilge water

[0054] Experimental device: a water treatment device assembled by electrocatalytic advanced oxidation technology electrode materials, the distance between functional cathode and anode materials is 1-5cm, parallel 2-10 groups; self-priming water pump, connecting pipeline, flow meter, constant current source power supply (voltage regulation 12-36V, current regulation 0-40A).

[0055] Experimental steps: Fix the system on the edge of the experimental table, turn on the power supply, the flow rate is 6L / min, the flow rate is ≤2m / s, the input voltage is 220V, the adjusted current is constant 8A, and the voltage is 5.0-10.0V. Take 500mL of raw water samples and 500mL of treated water samples, and send them to Pony Testing Center for testing. The test results are shown in Table 2.

[0056] Table 3. Treatment effect of electrocatalytic advanced...

Embodiment 3

[0060] Purpose: Removal of COD in water

[0061] Experimental sample: lake water containing blue-green algae at Dushan Water Conservancy Project in Wuxi, the raw water COD is 2378.84mg / L, and the algae cell density is 4.27 billion / liter.

[0062] Experimental device: a water treatment device assembled by electrocatalytic advanced oxidation technology electrode materials, the distance between functional cathode and anode materials is 1-5cm, parallel 2-10 groups; self-priming water pump, connecting pipeline, flow meter, constant current source power supply (voltage regulation 12-36V, current regulation 0-40A).

[0063] Experimental steps: Fix the system on the edge of the experimental table, turn on the power supply, the flow rate is 6L / min, the flow rate is ≤2m / s, the input voltage is 220V, the adjusted current is constant 8A, and the voltage is 5.0-10.0V. Take 500mL of raw water samples and 500mL of treated water samples. The test of COD adopts the potassium dichromate metho...

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Abstract

The invention relates to a set of electrocatalytic strong oxidizer materials, comprising a nano-function anode material which compounds nano oxide particles and catalyzes metal nano particles on a titanium substrate, and a nano-function cathode material which takes titanium or stainless steel as a substrate and introduces transition metal nano-particles on the surface thereof. By the electro-catalytic advanced oxidation technology, under the catalytic action of electrocatalytic strong oxidizer materials, water body can generate a hydroxyl radical with strong oxidizing performance and an oxygen radical; and if a chloride ion exists in water, hypochlorite can be generated. Under the joint action of a plurality of types of strong oxidizers, the algae cells in the water body and various harmful bacteria can be killed; and simultaneously the ammonia in water and the water-soluble organic matters can be degraded, so the goal of purifying water is achieved. According to the electrocatalytic advanced oxidation theory, the electrocatalytic strong oxidizer materials does not need to add any chemical agent when in application, does not have secondary pollution, and has good safety, high efficiency and low energy consumption.

Description

technical field [0001] The invention relates to a high-efficiency electrocatalytic advanced oxidation technology electrode material, which includes a nano-functional anode material composed of nano-oxide particles and catalytic metal nanoparticles on a titanium substrate, and a titanium or stainless steel substrate. , a nano-functional cathode material with transition metal nanoparticles introduced on its surface. This set of electrocatalytic advanced oxidation technology electrode materials can be assembled into water treatment devices, which are widely used in the sterilization and disinfection of various water bodies, killing harmful algae cells in water bodies, and the removal of ammonia nitrogen and harmful organic substances in industrial and domestic sewage. Electrocatalytic advanced oxidation technology electrode materials do not need to add any chemicals during application, there is no secondary pollution, and they are safe and efficient with low energy consumption. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467
Inventor 张学东史启媛
Owner 苏州盖依亚生物医药有限公司
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