Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof

An electrolytic reactor, photocatalytic three-dimensional technology, applied in chemical instruments and methods, special compound water treatment, light water/sewage treatment, etc., can solve three-dimensional electroreactor electrode blockage, reactor stability deterioration, reduce electrolysis Efficiency and other issues, to achieve the effect of solving electrode blockage and short circuit, helping to decompose, and increasing the amount of dissolved oxygen

Active Publication Date: 2016-08-31
CHANGZHOU XINHONG PHARMA & CHEM IND TECHOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the organic pollutants in the wastewater are easily deposited on the surface of the particle electrodes, the electrodes of the three-dimensional electroreactor are blocked and short-circuited, which makes the stability of the reactor operation worse and the electrolysis efficiency is significantly reduced.

Method used

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  • Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof
  • Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof
  • Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof

Examples

Experimental program
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Embodiment 1

[0021] Such as figure 1 The shown fluidized bed photocatalytic three-dimensional electrolysis reactor includes an electrolytic cell, a cathode 12, an anode 3 and a particle electrode arranged in the electrolytic cell, and a water inlet pump 13, an air pump 14, a perforated tube water distributor 4, a perforated tube exposure Gas vessel 5, water inlet pipe 6, air inlet pipe 7, water outlet pipe 9, described electrolyzer comprises photocatalytic oxidation reactor outer wall 1, the cylindrical electrolytic reaction zone in the wall, the funnel-shaped that is fixed on the electrolytic reaction zone top The solid-liquid separation area, and the water distribution and gas distribution area connected to the lower part of the electrolysis reaction area. The ratio of the inner diameter of the electrolytic cell to the height of the electrolytic reaction zone is 1:5.

[0022] There is an outlet in the solid-liquid separation area, and an inlet at the bottom of the water and gas distribu...

Embodiment 3

[0030] The reactor of Example 1 was used to treat the printing and dyeing wastewater in the textile park. The wastewater quality is: COD 498-1257mg / l, BOD 131.21-200.53mg / l, pH 9-11, turbidity 880-7832NTU, chroma 210-632 times. The cell voltage is 12V, the electrolysis time is 90min, and the expanded state density of the particle electrode is 40kg / m 3 , the wavelength of ultraviolet rays is 254nm, and the power is 100W. The wastewater enters the photocatalytic reaction zone and electrolytic reaction zone from the inlet pump through the water flow distributor at the bottom of the tank. The treated wastewater is discharged after solid-liquid separation. Wastewater treatment effect see image 3 .

[0031] If load TiO in the spherical particle photocatalytic electrode of embodiment 1 2 The COD removal rate decreased by 3.52% when the particle diameter of granular activated carbon was adjusted to 45 mesh.

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Abstract

The invention discloses a fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof and belongs to the technical field of sewage treatment. The fluidized bed photocatalytic three-dimensional electrolytic reactor comprises an electrolytic bath, a cathode, an anode, a particle electrode and a direct current power supply, wherein the cathode, the anode and the particle electrode are arranged in the electrolytic bath, the electrolytic bath comprises a cylindrical electrolytic reaction zone, a funnel-shaped solid-liquid separation zone and a water and gas distribution zone, the funnel-shaped solid-liquid separation zone is fixedly connected to the upper part of the electrolytic reaction zone, and the water and gas distribution zone is connected to the lower part of the electrolytic reaction zone; the cathode is a cylindrical stainless steel mesh and arranged circularly on the inner wall of the electrolytic reaction zone; the anode is a thin-walled stainless steel cylinder, and the tubular ultraviolet light source irradiation area in the stainless steel cylinder is a photocatalytic reaction zone; the particle electrode is a spherical particle photocatalytic electrode. The fluidized bed photocatalytic three-dimensional electrolytic reactor is used for treating degradation-resistant organic wastewater, has the advantages of high treatment efficiency, stable operation and the like and has a wide market application prospect in the degradation-resistant organic wastewater treatment aspect.

Description

technical field [0001] The invention relates to a fluidized bed photocatalytic three-dimensional electrolytic reactor and its application, belonging to the technical field of sewage treatment. Background technique [0002] The treatment of refractory organic wastewater has always been a difficult problem in the field of water pollution control. Electrolysis is an effective method to remove harmful impurities in industrial wastewater. It has been widely researched and applied in pharmaceutical, chemical, printing and dyeing industries. The three-dimensional electroreactor is filled with granular electrode materials between the electrodes of the traditional two-dimensional electrolytic cell, which increases the surface-to-body ratio of the electrodes, improves the mass transfer effect of the water phase, and improves the electrolysis efficiency. It has become a development direction of electrolysis technology and is more practical in engineering. value. However, since the or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/30
CPCC02F1/32C02F1/46109C02F1/46114C02F9/00C02F2001/46142C02F2101/30C02F2201/3223C02F2201/4619C02F2303/14C02F2305/10
Inventor 高永王国华张曼莹史亚傅小飞孔峰
Owner CHANGZHOU XINHONG PHARMA & CHEM IND TECHOLOGIES
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