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A kind of electrochemical water treatment equipment and water treatment method

A kind of water treatment equipment, electrochemical technology, applied in the direction of chemical instruments and methods, water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problems of low current efficiency, high energy consumption, poor mass transfer effect, etc., and achieve reduction Energy consumption, enhanced micro-flow field, and strong water permeability

Active Publication Date: 2020-11-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to transport substances to the interior of the porous electrode by means of mechanical stirring, resulting in poor mass transfer effect. This insurmountable shortcoming leads to lower current efficiency and high energy consumption.
For porous electrodes, traditional electrochemical reactors are difficult to maximize the advantages of porous electrodes

Method used

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  • A kind of electrochemical water treatment equipment and water treatment method
  • A kind of electrochemical water treatment equipment and water treatment method
  • A kind of electrochemical water treatment equipment and water treatment method

Examples

Experimental program
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Embodiment 1

[0057] A through-type electrochemical water treatment device enhanced by a microflow field, consisting of an electrode with an ordered pore structure and an insulating isolation layer, wherein the cathode 2 is a three-dimensional graphene loaded with a polyaniline nanocone array, with a porosity of 80%. The pore diameter is 0.4 μm, the thickness is 0.4mm, and the nanocone height is 100-150nm, and the average width is 30-60nm, which are randomly and densely distributed on the pore wall of the pore structure of the cathode 2; the anode 4 is graphene, the porosity is 90%, and the pore diameter is 0.5 μm and a thickness of 0.4 mm; the insulating layer 3 is porous cellulose acetate with a porosity of 70%, a pore diameter of 0.8 μm and a thickness of 0.1 mm.

[0058] Use the through-type electrochemical water treatment equipment strengthened by the micro flow field for water treatment, apply a voltage to the cathode and anode 2 and 4, the voltage is 1.5V, and then adjust the pH of th...

Embodiment 2

[0060] A through-type electrochemical water treatment device enhanced by a microflow field, consisting of an electrode with an ordered pore structure and an insulating isolation layer, wherein the cathode 2 is a three-dimensional graphene loaded with a polyaniline nanocone array, with a porosity of 80%. The pore diameter is 0.4 μm, the thickness is 0.4mm, and the nanocone height is 100-200nm, and the average width is 30-60nm, which are randomly and densely distributed on the pore wall of the pore structure of the cathode 2; the anode 4 is graphene, the porosity is 90%, and the pore diameter is 0.5 μm and a thickness of 0.4 mm; the insulating layer 3 is porous cellulose acetate with a porosity of 70%, a pore diameter of 0.8 μm and a thickness of 0.1 mm.

[0061] Use the through-type electrochemical water treatment equipment strengthened by the micro flow field for water treatment, apply a voltage to the cathode and anode 2, 4, the voltage is 1.5V, then adjust the pH of the raw w...

Embodiment 3

[0063] A kind of through-type electrochemical water treatment equipment enhanced by micro flow field, which is composed of electrodes with ordered pore structure and insulating isolation layer, wherein the cathode 2 is three-dimensional graphene loaded with palladium nanoparticles, the porosity is 85%, and the pore diameter is 0.45μm, thickness 0.4mm, palladium nanoparticles particle size 10-30nm, loading rate 5-10%, uniformly distributed on the pore wall of the pore structure of cathode 2; anode 4 is graphene, porosity 90%, pore diameter is 0.5 μm, and has a thickness of 0.4 mm; the insulating layer 3 is porous acetate with a porosity of 70%, a pore diameter of 0.8 μm, and a thickness of 0.1 mm.

[0064] Use the through-type electrochemical water treatment equipment strengthened by the micro-flow field to carry out water treatment, apply a voltage to the cathode and anode 2, 4, and the voltage is 1.5V, and then adjust the pH of the raw water containing 100ug / L of trichloroacet...

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Abstract

The invention discloses a micro-flow field-enhanced through type electrochemical water treatment apparatus and a water treatment method using the same. The water treatment apparatus comprises an electrochemical water treatment unit, a water inlet, and a water outlet, wherein the water treatment unit comprises at least one group of electrodes, and each electrode is provided with an ordered pore structure; at least one insulating and isolating layer is arranged between two electrodes among the group of electrodes; and the pore walls of the pore structure of at least one electrode among the groupof electrodes are loaded with catalyst which is of a nano-microstructure. The water treatment method includes the following steps: raw water containing pollutants enters the water treatment apparatusvia the water inlet, passes through the water treatment apparatus, and then flows out via the water outlet. The water treatment apparatus and the water treatment method can enhance the mass transfereffect, increase current efficiency and reduce energy consumption, and compared with the conventional immersion type electrochemical treatment method, the water treatment method has higher efficiencyand more powerful functions.

Description

technical field [0001] The present invention relates to but not limited to a water treatment equipment and treatment method, in particular to but not limited to a through-type electrochemical water treatment equipment based on microflow field enhancement, and a water treatment method using the equipment. Background technique [0002] Electrochemical water treatment technology includes electrochemical oxidation, electrochemical reduction, and electrosorption, etc., and its versatility makes this technology widely used in the field of water treatment. [0003] Pollutants in water are mainly enriched, transformed and degraded on the electrode surface. Increasing the electrode area can effectively increase the electrochemical reaction rate and reduce the reactor volume, thereby improving the scope of application of electrochemical technology. Therefore, more and more attention has been paid to porous electrode materials in related technical fields at home and abroad, such as car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/66
CPCC02F1/46109C02F1/467C02F1/66C02F2001/46142C02F2001/46161
Inventor 吉庆华张弓刘会娟曲久辉
Owner TSINGHUA UNIV
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