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Bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out

A technology of photocatalytic reactor, water in and out, applied in the direction of light water/sewage treatment, etc., can solve the problems of inconvenient installation and maintenance, hidden safety hazards, energy waste, etc., and achieve excellent purification effect, easy installation, and simple structure.

Inactive Publication Date: 2016-05-11
冯冠华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the traditional reactors are water inlet on one side and outlet on the other side. When multi-stage reactors are used together, it is not only inconvenient to install and maintain, but also it is not easy to separate the water circuit from the electronic control system circuit, causing potential safety hazards.
[0004] Secondly, because the traditional reactors are all single reaction zones, the photocatalytic materials only use the same material, and the light radiation is not utilized in a broad spectrum, and the treatment effect is low, resulting in energy waste

Method used

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  • Bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out
  • Bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out

Examples

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Effect test

Embodiment 1

[0015] The structure of the photocatalytic water purification reactor with water inlet and outlet on one side of the present embodiment includes a water inlet, an ultraviolet lamp, a water outlet, a side cover, a sealing ring 1, a housing tube, a photocatalytic film tube, a photocatalytic short and medium wave reaction zone, Photocatalytic long-wave reaction zone, sealing ring 2. The side cover of the reactor is connected with the shell tube by internal and external threads. The material of the shell tube is 304 stainless steel, the material of the photocatalytic membrane tube is quartz, and the ultraviolet lamp is 254nm. A water inlet, a water outlet, an ultraviolet lamp and a sealing ring 1 are arranged on the side cover of the photocatalytic reactor. The housing tube has a built-in photocatalytic film tube and a sealing ring 2 . The sealing ring 2 provides a buffering and fixing function for the photocatalytic film tube. One end of the shell tube has outer teeth, which ca...

Embodiment 2

[0017] Investigate the dechlorination effect of this example: According to the method 1.2 in GB5750.11-2006, firstly measure the free residual chlorine (FRC) content of purified tap water. First, two single-zone single-membrane reactors are connected in series to form a two-stage reactor. After turning on the ultraviolet lamp, directly connect the water inlet of the reactor to the tap of the pressure limiting device, collect the effluent, and measure the free residual chlorine content of the effluent. . Then, the same measurement was carried out using a single-stage, double-zone, and double-membrane reactor. The comparison results are shown in Table 1.

[0018] The free residual chlorine content of unpurified tap water is 0.40mg / L.

[0019]

[0020] Table 1

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Abstract

The invention relates to a bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out and belongs to the technical field of water purifying treatment. A mode of unilateral water coming in and out is adopted in the reactor. A photocatalysis membrane pipe in the reactor is a quartz pipe. The inner side and the outer side of the quartz pipe are loaded with photocatalysis membranes respectively, wherein the photocatalysis membranes have different photoresponses. Due to the absorption of the membranes and the membrane pipe to radiation, two different light intensity radiation zones can be formed in the reactor. The photocatalysis membrane on the inner side receives short-wave ultraviolet light and medium-wave ultraviolet light. The photocatalysis membrane on the outer side receives long-wave ultraviolet light and visible light. Water passes the inner membrane pipe photocatalysis short and medium wave reaction zone and then enters the outer membrane pipe photocatalysis long wave reaction zone, so the different reaction zones play a synergistic effect in elimination to contaminants. A water path is designed according to unilateral water coming in and out, a bi-zone and bi-membrane secondary purification stage is arranged, the structure is simple, installation is easy, and the purification effect is superior, so the bi-zone and bi-membrane catalytic reactor is suitable for scale assembling.

Description

technical field [0001] The invention relates to a double-zone double-membrane photocatalytic reactor with water inlet and outlet on one side, in particular to a photocatalytic water purification reactor suitable for large-scale assembly, and belongs to the technical field of water purification treatment. Background technique [0002] The general principle of photocatalytic water purification treatment is to use the composite semiconductor photocatalyst loaded on the substrate to generate photo-generated electrons and photo-generated hole electrons, as well as active oxygen species (hydroxyl radicals, superoxide, etc.) Negative ions, etc.), to detoxify the toxic organic matter and heavy metal ions in the water, thereby producing a water purification effect. Since there is no need to add any reagents to the water, it is a green water treatment method. [0003] However, most of the traditional reactors are water-inlet on one side and out-water on the other side. When multi-sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/32
Inventor 冯冠华仇健冯嘉炜
Owner 冯冠华