Particle electrode catalyst filling for three-dimensional electrode and preparation method thereof

A particle electrode, three-dimensional electrode technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc., can solve the problem of affecting the effect and quantity of catalyst active centers, affecting the efficiency of organic pollutant treatment, and insufficient synergy effect It can achieve the effects of low energy consumption and maintenance costs, broad application prospects, and significant economic benefits.

Inactive Publication Date: 2005-09-21
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Whether the composition distribution ratio of the particle electrode is reasonable or not will directly affect the effect and quantity of the active center of the catalyst, and then affect the generation rate of OH, and finally affect the treatment efficiency of organic pollutants
At present, the particle electrode catalyst filler used in this technology still has defects such as high raw material cost, poor mechanical strength, and insufficient synergistic effect between components.

Method used

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  • Particle electrode catalyst filling for three-dimensional electrode and preparation method thereof
  • Particle electrode catalyst filling for three-dimensional electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Calculated by weight percentage, with 50% activated carbon as the matrix, 13% iron oxide, 12% copper oxide, 4% manganese oxide, 1% zinc oxide, 0.5% zirconia, 0.5% cerium oxide as the initiator, and 19% wood Calcium Sulfonate is used as the binder, add water and mix evenly, then extrude and cut into pellets, then dry naturally, and finally heat carbonization and activation for 2 hours under the condition of 430°C and anoxic, and make a particle size of 4-6mm particle electrodes.

Embodiment 2

[0025] Calculated by weight percentage, with 50.5% activated carbon as the matrix, 13.5% iron oxide, 12.5% ​​copper oxide, 4% manganese oxide, 1.2% zinc oxide, 0.6% zirconia, 0.7% cerium oxide as the initiator, and 17% wood Calcium sulfonate is used as the binder and mixed with water, then extruded and cut into pellets, then air-dried, and finally heated and carbonized and activated for 3 hours under the condition of 470°C and anoxic, and made into particles with a particle size of 4-6mm. particle electrodes. Fill the particle electrode with the synthesized catalyst packing, under the conditions of air flow rate 60L / h, voltage 30V, pH4.27 and reaction time 10-60min, COD Cr The treatment effect of potassium hydrogen phthalate wastewater is 618mg / L. And under the same conditions, compared with the treatment effect of using traditional three-dimensional electrode catalyst packing (old packing). The result is as figure 2 As shown, this shows that compared with the traditional ...

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Abstract

The invention discloses a particle electrode catalyst filling for three-dimensional electrode and preparation method, calculated by weight percent, the material comprises activated charcoal 50-54%, adhesive 14-19%, the initiating agent comprises 13-16% ferrum oxide, 12-15% copper oxide, 4-7% manganese oxide, 1-1.5% zinc oxide, 0.5-1% zirconium oxide, 0.5-1% cerium oxide.

Description

technical field [0001] The present invention relates to a composition, in particular to a catalyst packing. Background technique [0002] The patent number is ZL02114740.X. The three-dimensional electrode catalytic oxidation method for organic wastewater treatment is based on the principle of three-dimensional electrodes. The particle electrode between the two main electrodes contains transition metal oxides as initiators. When the wastewater to be treated passes through, under certain operating conditions (that is, a certain DC voltage, air flow rate, etc.), a certain concentration of primary ecological H will be generated in the device. 2 o 2 , and quickly decompose into highly oxidizing hydroxyl radicals (OH) and new ecological coagulants, and the organic matter in wastewater will be quickly removed by catalytic oxidation decomposition, coagulation, adsorption, etc. Due to the strong oxidizing properties of hydroxyl radicals, organic pollutants are often directly oxidiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72
Inventor 陈卫国张卓恒朱锡海李敏霞奉夏平
Owner SUN YAT SEN UNIV
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