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Composite particle electrode for bipolar three-dimensional electrode reactor and preparation method of electrode

A technology of three-dimensional electrodes and composite particles, which is applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor acid and alkali resistance, application limitations, and easy pulverization of particles, and achieve Good stability, low ash content, strong acid and alkali resistance

Inactive Publication Date: 2013-08-14
江苏佑风微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned carriers are all high-impedance carriers with high energy consumption, and their application in low-salinity wastewater is limited. At the same time, γ-Al 2 o 3 Particles are poor in acid and alkali resistance, and are easy to pulverize when used in the treatment of strong acid or alkaline industrial wastewater

Method used

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  • Composite particle electrode for bipolar three-dimensional electrode reactor and preparation method of electrode
  • Composite particle electrode for bipolar three-dimensional electrode reactor and preparation method of electrode
  • Composite particle electrode for bipolar three-dimensional electrode reactor and preparation method of electrode

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Effect test

Embodiment 1

[0049] A. Preparation of Activated Carbon Particles Loaded with Metal Active Components

[0050] (1) Pretreatment of activated carbon particles: After rinsing the activated carbon particles with a particle size of 3-5mm in distilled water, put them in a hydrochloric acid solution with a concentration of 1.0mol / L and boil them for 60 minutes, then take out the activated carbon particles and wash them until neutral, then Put it into 1.0mol / L NaOH lye and boil for 60 minutes, take it out and wash until neutral, filter out the water, and dry it at 100-105°C for use;

[0051] (2) Impregnation adsorption: the SnCl 4 ·5H 2 O, SbCl 3 and FeCl 3 Prepare the impregnation solution for activated carbon particles, and the SnCl in the impregnation solution 4 ·5H 2 The concentration of O is 0.6mol / L, SbCl 3 The concentration is 0.1mol / L, FeCl 3 The concentration is 0.3mol / L. Immerse the activated carbon particles obtained after pretreatment in the above impregnation solution for vibr...

Embodiment 2

[0065] A. Preparation of Activated Carbon Particles Loaded with Metal Active Components

[0066] (1) Pretreatment of activated carbon particles: After rinsing the activated carbon particles with a particle size of 4-6mm in distilled water, put them in a hydrochloric acid solution with a concentration of 1.5mol / L and boil for 40 minutes, then take out the activated carbon particles and wash them until neutral, then Put it into KOH lye with a concentration of 1.5mol / L and boil for 40 minutes, take it out and wash until neutral, filter out the water, and dry it at 100-105°C for use;

[0067] (2) Impregnation adsorption: the SnCl 4 ·5H 2 O, SbCl 3 and FeCl 3 Prepare the impregnation solution for activated carbon particles, and the SnCl in the impregnation solution 4 ·5H 2 The concentration of O is 0.55mol / L, SbCl 3 The concentration is 0.15mol / L, FeCl 3 The concentration is 0.3mol / L. Submerge the activated carbon particles obtained after pretreatment in the above-mentioned...

Embodiment 3

[0081] A. Preparation of Activated Carbon Particles Loaded with Metal Active Components

[0082] (1) Pretreatment of activated carbon particles: After rinsing the activated carbon particles with a particle size of 6-8mm in distilled water, put them in a hydrochloric acid solution with a concentration of 2.0mol / L and boil for 30 minutes, then take out the activated carbon particles and wash them until neutral, then Put it into 2.0mol / L NaOH lye and boil for 30 minutes, take it out and wash until neutral, filter out the water, and dry it at 100-105°C for use;

[0083] (2) Impregnation adsorption: the SnCl 4 ·5H 2 O, SbCl 3 and FeCl 3 Prepare the impregnation solution for activated carbon particles, and the SnCl in the impregnation solution 4 ·5H 2 The concentration of O is 0.5mol / L, SbCl 3 The concentration is 0.2mol / L, FeCl 3 The concentration is 0.3mol / L. Submerge the activated carbon particles obtained after pretreatment in the above-mentioned impregnating solution fo...

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Abstract

The invention belongs to the field of an electrochemical reactor, and relates to a composite particle electrode for a bipolar three-dimensional electrode reactor and a preparation method of the electrode. The composite particle electrode comprises active carbon particles and porous ceramic ring grains, wherein the active carbon particles account for 60 to 70 percent by weight of the gross of a grain electrode, and the porous ceramic ring grains account for 30 to 40 percent by weight of the gross of the grain electrode; and the active carbon particles and the porous ceramic ring grains are respectively loaded with different metal active components. The preparation method comprises the following steps of: (1) preprocessing the particles and the grains, (2) soaking and adsorbing, (3) heat treatment, and (4) roasting activation. The composite particle electrode has the characteristics that the preparation method is simple, investment is less, the industrialization is easy to realize, and utilization rate of the effective space of an electrolytic tank is high. The composite particle electrode can be used for preprocessing high-concentration persistent organic pollutants, can improve the biodegradability of the sewage, and also can be used for the further treatment of the low-concentration sewage of a sewage treatment plant, and the application prospect is promising.

Description

technical field [0001] The invention belongs to the field of electrochemical reactors, in particular to a composite particle electrode applied to bipolar three-dimensional electrode reactors and a preparation method thereof. The composite particle electrode can be used in the field of treatment of water environment pollution. Background technique [0002] Electrochemical treatment of wastewater generally does not require the addition of oxidants, the equipment is simple, the volume is small, the amount of sludge is small, and the post-treatment is simple. It is often called an "environmentally friendly" green oxidation technology. In the late 1960s, with the rapid development of mass transfer theory, material science and power industry, the concept of three-dimensional electrodes was proposed on the basis of traditional two-dimensional electrodes. It is to fill the granular working electrode material between the electrodes of the traditional two-dimensional electrolyzer, an...

Claims

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Application Information

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IPC IPC(8): C02F1/461
Inventor 曹桂萍徐枫刘宝亮壮亚峰张金涛
Owner 江苏佑风微电子有限公司
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