WO2020010806A1 - Cyclic heterogeneous photocatalytic oxidation treatment system and treatment method - Google Patents

Cyclic heterogeneous photocatalytic oxidation treatment system and treatment method Download PDF

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WO2020010806A1
WO2020010806A1 PCT/CN2018/123801 CN2018123801W WO2020010806A1 WO 2020010806 A1 WO2020010806 A1 WO 2020010806A1 CN 2018123801 W CN2018123801 W CN 2018123801W WO 2020010806 A1 WO2020010806 A1 WO 2020010806A1
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catalyst
pipe
cyclic
oxidation treatment
photocatalytic oxidation
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PCT/CN2018/123801
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French (fr)
Chinese (zh)
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李骎
甄胜利
刘泽军
贾晓解
赵静
王伟龙
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北京高能时代环境技术股份有限公司
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Priority to DE212018000407.2U priority Critical patent/DE212018000407U1/en
Publication of WO2020010806A1 publication Critical patent/WO2020010806A1/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/10—Photocatalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the invention belongs to the field of wastewater treatment, and more particularly, relates to a cyclic heterogeneous photocatalytic oxidation treatment system and a treatment method.
  • Fenton oxidation method and ozone oxidation method are currently widely used advanced sewage oxidation methods in wastewater treatment.
  • the Fenton oxidation method will produce a large amount of iron hydroxide sludge, and the amount of agent added is large, and the operating cost is high;
  • the ozone oxidation method also has the disadvantages of weak oxidation capacity, high energy consumption, and tail gas treatment. Therefore, it is necessary to develop an advanced oxidation treatment technology and equipment with strong oxidation capacity, low operating cost and no secondary pollution.
  • the ⁇ OH produced in the photocatalytic process is an active oxide species that plays a major role. It has a strong oxidation ability and can effectively oxidize difficult-to-degrade organic pollutants with complex molecular structures. It can be widely used in organic synthesis chemical wastewater, dye wastewater, and pesticide wastewater. , Coking wastewater, pharmaceutical wastewater, papermaking wastewater and other difficult to degrade organic wastewater.
  • the photocatalytic reaction can use sunlight or ultraviolet light as a light source, which is an efficient and energy-saving wastewater treatment technology. Unlike chemical oxidants, no other chemicals are added to the photocatalytic oxidation reaction, so no secondary pollution will occur.
  • the photocatalytic oxidation treatment system was developed based on the photocatalytic oxidation technology. Through unique design and optimization, the industrialized application of the photocatalytic oxidation technology was realized. The system has broad market prospects in industrial wastewater treatment, groundwater treatment in organic polluted sites, and emergency treatment of water pollution.
  • the present invention provides a cyclic heterogeneous photocatalytic oxidation treatment system and a treatment method thereof, which can not only efficiently remove refractory organic substances in sewage, but also the catalyst can be precipitated or filtered by subsequent equipment, and then The processing system is reused, and no secondary pollution occurs during the entire processing.
  • One aspect of the present invention provides a cyclic heterogeneous photocatalytic oxidation treatment system, which includes:
  • the reaction tank body is provided with a catalyst adding pipe, a water inlet pipe, a water outlet pipe, a pipe mixer and an exhaust pipe, and the catalyst adding pipe, the water pipe and the pipe mixer are connected;
  • a diversion wall is arranged in the middle of the reaction tank body
  • a matrix-type ultraviolet lamp irradiation system arranged in the reaction cell body
  • the catalyst anti-sedimentation system is arranged at the bottom of the reaction tank body and is equipped with an aeration tube group;
  • the push-flow stirring system includes at least two submersible mixers, which are respectively arranged at opposite corners on both sides of the diversion wall;
  • a catalyst ultrasonic dissolution dosing system connected to the catalyst dosing tube;
  • the diversion wall is arranged in the middle of the reaction tank in order to better divert water and flow the reaction tank wall;
  • the catalyst anti-sedimentation system is set at the bottom of the reaction tank and is equipped with an aeration tube group, which is connected to a suitable model
  • the blower enables the catalyst in the reaction tank to be swept up.
  • the push flow stirring system is to configure a submersible agitator at the opposite sides of the diversion wall to make the water flow to the pool wall and the diversion wall.
  • the combination of the flow wall, catalyst anti-sedimentation system and push flow stirring system can make the water flow form a good loop along the pool wall and the diversion wall, and it is fully mixed with the catalyst and the oxygen promoter to ensure that the catalyst can fully accept the ultraviolet lamp.
  • the irradiation makes the reaction more fully.
  • the pool wall of the reaction pool body and the diversion wall are both provided with a spoiler, and the spoiler is tilted, and the tilt direction is consistent with the water flow direction.
  • Spoilers are installed on the diversion wall and the pool wall to better agitate the water body, increase the probability of contact between the mixture and the ultraviolet light source, and improve the processing efficiency of the system.
  • the direction of the spoiler needs to be consistent with the direction of the water flow. You can choose a board with a length of 0.5-3.0m and a width of 0.1-0.3m. During installation, it can maintain an angle of ⁇ 90 ° with the wall of the pool.
  • the aeration tube group is disposed at a distance of 10-50 cm from the bottom of the reaction tank body, and a hole is opened at the bottom to be evenly arranged along the circumference of the tube.
  • the aeration tube group is connected to a blower.
  • the height of the aeration tube group and the setting of the openings are for purging the catalyst in the reaction tank to make it in a good suspension state, so as to ensure the effective concentration of the catalyst in contact with the sewage and maintain the system treatment. effectiveness.
  • the matrix-type ultraviolet lamp irradiation system includes a matrix-type ultraviolet lamp group, a rectifier, and a rectifier electric control box.
  • the matrix-type ultraviolet lamp group includes a stainless steel lamp holder, an ultraviolet lamp, and a waterproof sealed sleeve.
  • the ultraviolet lamp is fixed by the stainless steel lamp holder and is evenly distributed in the reaction cell body.
  • the stainless steel lamp holder is provided with a self-cleaning device.
  • the number of matrix ultraviolet lamp groups can vary from 10 to 100 according to actual needs. Waterproof sealed sleeves are provided outside the lamps and arranged in different sequences according to needs.
  • the overall lamp holder is equipped with a self-cleaning device, which facilitates maintenance and cleaning of the external quartz sleeve.
  • the invention can be equipped with ultraviolet lamp tubes with different irradiation wavelengths according to the actual needs according to the proportion.
  • the main irradiation wavelength range is ⁇ 420nm, preferably between 150nm and 420nm.
  • the cyclic heterogeneous photocatalytic oxidation treatment system further includes an external agent dosing system, and the external agent dosing system may be connected to the pipe mixer through an oxygen assistant dosing pipe.
  • the external medicine dosing system includes a medicine dosing pump, a stirring tank, a metering pump, and a medicine storage tank.
  • the catalyst ultrasonic dissolution dosing system includes a dry powder dosing device, a stirring tank, an ultrasonic dissolution box, and a metering pump.
  • the catalyst ultrasonic dissolution and dosing system is to dissolve and stir the catalyst evenly and stir it into the reaction cell quantitatively to ensure the effective concentration of the catalyst in the reaction cell and improve the reaction efficiency.
  • a walkway platform can be selected above the reaction tank body; at the same time, to facilitate the daily maintenance and replacement of equipment such as matrix ultraviolet lamp units, push flow stirrers, etc.
  • a movable lifting device can also be installed above the body.
  • the automatic control system is a PLC system and is provided with an electric control box.
  • the invention is equipped with a unified PLC system, and an electric control box (including an automatic control interface) matched with the system is provided beside.
  • the automatic control system is mainly used for unified control of blowers, matrix UV lamps, water pumps, self-cleaning systems, external pharmaceutical dosing systems, catalyst dosing and ultrasonic dissolution systems.
  • the external pharmaceutical dosing system, catalyst ultrasonic dissolution dosing system and automatic control system involved in the system may be uniformly arranged in the equipment room.
  • the cyclic heterogeneous photocatalytic oxidation treatment method is performed in the above-mentioned cyclic heterogeneous photocatalytic oxidation treatment system.
  • the method includes: dry catalyst powder Into the catalyst ultrasonic dissolution dosing system, after ultrasonic dissolution, it reaches the pipe mixer through the catalyst dosing pipe; the sewage enters the pipe mixer from the water inlet pipe, mixes with the catalyst and enters the reaction tank body; in the reaction pool Inside the body, the mixture is in contact with the matrix-type ultraviolet lamp set, which stimulates the catalyst to perform oxidation treatment on the sewage. After the purification is completed, the purified water is discharged from the water outlet pipe.
  • the catalyst in the present invention may be selected from metal oxide nanoparticles, which are at least one of TiO 2 , ZnO, ZrO 2 , WO 3 and titanate photocatalysts, and the particle size ranges from 100 nm to 1000 nm.
  • the catalyst optionally further includes an oxidant, and the oxidant is one or a mixture of hydrogen peroxide, ferrous sulfate, and ozone.
  • the concentration of photocatalyst, the number of UV lamps and the wavelength of UV lamps can be flexibly adjusted according to the amount of wastewater, the concentration and type of pollutants, and appropriate co-oxidants can be added to truly realize the professional treatment of different wastewaters.
  • the sewage enters the reaction tank through the water inlet
  • the catalyst enters the reaction tank through the catalyst mixer through the pipeline mixer at the water inlet pipeline, and the catalyst and the sewage are fully mixed in the reaction tank.
  • the catalyst After being irradiated with ultraviolet light in the reaction cell, the catalyst generates strongly oxidizing substances (such as holes, hydroxyl radicals, etc.).
  • the strongly oxidizing substances react with water molecules, oxygen, ozone, and hydrogen peroxide to generate strongly oxidizing species.
  • the organic substances and reducing substances in the wastewater are oxidized and removed to achieve the purpose of efficiently removing difficult-to-degrade pollutants in the water.
  • the present invention has the following advantages:
  • the ultraviolet light group can be correspondingly changed according to the increase of the amount of water, and the wavelength of the ultraviolet lamp can also be changed according to the specific water quality. Through reasonable distribution, the maximum utilization of the light source can be realized, and the operating cost of the photocatalytic oxidation treatment system can be greatly reduced;
  • the anti-catalyst precipitation system can be equipped with multiple aeration branches at the bottom of the reaction tank to reduce the stirring dead zone of the reaction zone, thereby ensuring that the catalyst does not accumulate at the bottom and improve the reaction of the system effectiveness;
  • a certain size spoiler is installed on the reaction tank wall and the diversion wall, which can fully mix the catalyst and the sewage, and greatly increase the mass transfer efficiency in the reaction zone;
  • the photocatalytic oxidation treatment system of the present invention can flexibly adjust the concentration of the photocatalyst according to the concentration and type of pollutants in the wastewater, and add appropriate co-oxidants to truly realize the professional treatment of different wastewaters.
  • FIG. 1 shows a top view of a photocatalytic oxidation treatment system according to Embodiment 1 of the present invention.
  • FIG. 2 shows a side view of a photocatalytic oxidation treatment system according to Embodiment 1 of the present invention.
  • a cyclic heterogeneous photocatalytic oxidation treatment system as shown in FIG. 1 is used, including: a reaction cell body 13, a diversion wall 9, a matrix ultraviolet lamp irradiation system 7, a catalyst anti-precipitation system, a push flow stirring system, and a catalyst ultrasonic dissolution.
  • Dosing system The reaction tank body 13 is provided with a catalyst dosing pipe 3, an inlet pipe 1, an outlet pipe 12, a pipe mixer 2 and an exhaust pipe 11, and the catalyst dosing pipe 3 and the water inlet pipe 1 are connected to the pipe mixer 2.
  • An aisle platform 6 and a movable lifting device are arranged above the reaction cell body 13.
  • a diversion wall 9 is provided in the middle of the reaction cell body 13.
  • a spoiler 14 is provided on both the pool wall and the diversion wall 9 of the reaction cell body 13.
  • the spoiler 14 is disposed obliquely, and the inclination direction is consistent with the water flow direction.
  • the push flow stirring system includes two submersible stirrers 8 respectively disposed at diagonal corners on both sides of the diversion wall 9.
  • the reaction cell body 13 is provided with a matrix-type ultraviolet lamp irradiation system 7.
  • the matrix-type ultraviolet lamp irradiation system 7 includes a matrix-type ultraviolet lamp group, a rectifier, and a rectifier electric control box.
  • the matrix-type ultraviolet lamp group includes a self-cleaning device.
  • the stainless steel lamp holder, the ultraviolet lamp and the waterproof sealing sleeve are fixed by the stainless steel lamp holder and are evenly distributed in the reaction cell body 13.
  • the bottom of the reaction tank body 13 is provided with a catalyst anti-sedimentation system, and an aeration tube group is arranged at a distance of 10 cm from the bottom of the reaction cell body.
  • the catalyst ultrasonic dissolution dosing system is connected to the catalyst dosing pipe 3 and includes a dry powder dosing device, a stirring tank, an ultrasonic dissolution box, and a metering pump.
  • the automatic control system is a PLC system and is equipped with an electric control box. In addition, it also includes an external medicament dosing system.
  • the external medicament dosing system is connected to the pipe mixer 2 through an oxygen-aid dosing pipe 4 and includes a dosing pump, a stirring tank, a metering pump, and a medicine storage tank.
  • the external pharmaceutical dosing system, catalyst ultrasonic dissolution dosing system and automatic control system involved in this system are all arranged in the equipment room 5 uniformly.
  • Contaminated water is pumped into the system from a water inlet pipe by a water pump, and the catalyst dry powder is added to the catalyst ultrasonic dissolution system.
  • the catalyst addition pipe 3 is put into the pipe mixer 2, and the oxygen-assisting agent is assisted by The oxygen agent feeding pipe 4 enters the pipe mixer 2, and the sewage enters the pipe mixer 2 from the water inlet pipe 1, and is mixed with the catalyst and the oxygen-assisting agent into the reaction tank body 13; in the reaction tank body 13, in the submersible mixer 8.
  • the catalyst, the oxygen-assisting agent and the polluted water body are fully mixed uniformly, and the mixture is fully contacted with the uniformly distributed matrix ultraviolet lamp holder, so that the nanometer in the reaction cell 13
  • the photocatalyst is excited by the ultraviolet lamp tube to produce strong oxidizing species, and oxidizes and removes organic matter and reducing pollutants in the sewage.
  • the purified water is discharged from the water outlet pipe 12 and enters the clear water tank. The system periodically replaces the catalyst in the tank by the exhaust pipe 11.

Abstract

A cyclic heterogeneous photocatalytic oxidation treatment system and treatment method, the system comprising: a reaction pool body (13), provided with a catalyst feeding pipe (3), a water inlet pipe (1), a water outlet pipe (12), a pipeline mixer (2) and a discharge pipe (11), the catalyst feeding pipe (3) and the water inlet pipe (1) being connected to the pipeline mixer (2); a flow guiding wall (9), arranged at the middle portion of the reaction pool body (13); a matrix type ultraviolet lamp irradiation system (7), arranged in the reaction pool body (13); a catalyst anti-precipitation system, arranged at the bottom of the reaction pool body (13) and provided with an aeration pipe group; a push-flow stirring system, comprising at least two submersible stirrers (8) which are respectively arranged at opposite corners on two sides of the flow guiding wall (9); a catalyst ultrasonic dissolving feeding system, connected to the catalyst feeding pipe (3); and an automatic control system, used for unified control of each part of the cyclic heterogeneous photocatalytic oxidation treatment system. Thus, refractory organic matters may be efficiently removed from sewage, and no secondary contamination is produced during the entire treatment process.

Description

一种循环式异相光催化氧化处理系统及处理方法Cyclic heterogeneous photocatalytic oxidation treatment system and treatment method 技术领域Technical field
本发明属于废水处理领域，更具体地，涉及一种循环式异相光催化氧化处理系统及处理方法。The invention belongs to the field of wastewater treatment, and more particularly, relates to a cyclic heterogeneous photocatalytic oxidation treatment system and a treatment method.
背景技术Background technique
随着科技的高速发展和人类文明的进步，各种环境污染越来越严重，其中水污染尤为引起全球范围内的广泛重视。目前许多国家的地表水和地下水均受到不同程度的污染，水污染物主要来自工业、农业以及生活污水。当前水处理中常采用的方法是物化法和生化法，具有工艺成熟，易于大规模工业化应用的优点。然而，这些方法只是将污染物从一相转移到另一相，或是将污染物分离、浓缩，并没有使污染物得到破坏而实现无害化。这不可避免地带来废料和二次污染，而且适用范围有限，成本也比较高。近年来，有关污染物治理研究方面已逐步转向化学转化法，即通过化学反应使污染物受到破坏而实现无害化。With the rapid development of science and technology and the progress of human civilization, various types of environmental pollution have become more and more serious. Among them, water pollution has attracted widespread attention worldwide. Surface water and groundwater in many countries are currently polluted to varying degrees. Water pollutants mainly come from industrial, agricultural, and domestic sewage. The methods commonly used in current water treatment are physical and chemical methods and biochemical methods, which have the advantages of mature technology and easy large-scale industrial application. However, these methods only transfer the pollutants from one phase to another, or separate and concentrate the pollutants without destroying the pollutants and achieving harmlessness. This inevitably brings waste and secondary pollution, and the scope of application is limited and the cost is relatively high. In recent years, research on pollutant treatment has gradually turned to chemical conversion, that is, the destruction of pollutants through chemical reactions to achieve harmlessness.
Fenton氧化法和臭氧氧化法是目前在污水处理中应用较为广泛的高级氧化法。然而，Fenton氧化法会产生大量氢氧化铁污泥，且药剂的添加量较大，运行费用高；臭氧氧化法同样存在着氧化能力较弱，能耗较高、尾气需要处理等缺点。因此，需要开发一种氧化能力强、运行费用较低、无二次污染的高级氧化处理技术和设备是十分必要的。Fenton oxidation method and ozone oxidation method are currently widely used advanced sewage oxidation methods in wastewater treatment. However, the Fenton oxidation method will produce a large amount of iron hydroxide sludge, and the amount of agent added is large, and the operating cost is high; the ozone oxidation method also has the disadvantages of weak oxidation capacity, high energy consumption, and tail gas treatment. Therefore, it is necessary to develop an advanced oxidation treatment technology and equipment with strong oxidation capacity, low operating cost and no secondary pollution.
光催化过程中产生的·OH是起主要作用的活性氧化物种，氧化能力很强，能有效地氧化分子结构复杂的难降解有机污染物，可广泛应用于有机合成化工废水、染料废水、农药废水、焦化废水、制药废水、造纸废水等难降解有机废水的处理中。光催化反应可使用太阳光或紫外光作为光源， 是一种高效节能的废水处理技术。与化学氧化剂不同，光催化氧化反应中没有加入其它化学药剂，因此不会产生二次污染；另外在反应过程中，有机物彻底降解为CO 2和H 2O，也无须考虑反应产物的后续处置问题。在性能良好的催化剂的作用下，废水中污染物质的降解一般仅需要几分钟到几小时，远小于采用其他传统方法的反应时间。 The · OH produced in the photocatalytic process is an active oxide species that plays a major role. It has a strong oxidation ability and can effectively oxidize difficult-to-degrade organic pollutants with complex molecular structures. It can be widely used in organic synthesis chemical wastewater, dye wastewater, and pesticide wastewater. , Coking wastewater, pharmaceutical wastewater, papermaking wastewater and other difficult to degrade organic wastewater. The photocatalytic reaction can use sunlight or ultraviolet light as a light source, which is an efficient and energy-saving wastewater treatment technology. Unlike chemical oxidants, no other chemicals are added to the photocatalytic oxidation reaction, so no secondary pollution will occur. In addition, during the reaction, the organic matter is completely degraded into CO 2 and H 2 O, and there is no need to consider the subsequent disposal of the reaction products. . Under the action of a good-performance catalyst, the degradation of pollutants in wastewater generally takes only a few minutes to several hours, which is much shorter than the reaction time of other traditional methods.
该光催化氧化处理系统基于光催化氧化技术开发而来，通过独特的设计和优化，实现了光催化氧化技术的工业化应用。该系统在工业废水处理、有机污染场地地下水处理以及应水体污染应急处理等方面具有广阔的市场前景。The photocatalytic oxidation treatment system was developed based on the photocatalytic oxidation technology. Through unique design and optimization, the industrialized application of the photocatalytic oxidation technology was realized. The system has broad market prospects in industrial wastewater treatment, groundwater treatment in organic polluted sites, and emergency treatment of water pollution.
因此有必要研发一种能够高效的去除污水中的难降解有机物的光催化氧化处理系统。Therefore, it is necessary to develop a photocatalytic oxidation treatment system capable of efficiently removing refractory organic substances in sewage.
发明内容Summary of the invention
为了实现上述目的，本发明提供一种循环式异相光催化氧化处理系统及其处理方法，不仅能高效的去除污水中的难降解有机物，且催化剂可以通过后续设备进行沉淀或者过滤后，再到处理系统回用，整个处理过程中不会产生二次污染。In order to achieve the above objective, the present invention provides a cyclic heterogeneous photocatalytic oxidation treatment system and a treatment method thereof, which can not only efficiently remove refractory organic substances in sewage, but also the catalyst can be precipitated or filtered by subsequent equipment, and then The processing system is reused, and no secondary pollution occurs during the entire processing.
本发明一方面提供一种循环式异相光催化氧化处理系统，该系统包括：One aspect of the present invention provides a cyclic heterogeneous photocatalytic oxidation treatment system, which includes:
反应池体，设有催化剂投加管、进水管、出水管、管道混合器以及排空管，所述催化剂投加管、所述进水管与所述管道混合器相连；The reaction tank body is provided with a catalyst adding pipe, a water inlet pipe, a water outlet pipe, a pipe mixer and an exhaust pipe, and the catalyst adding pipe, the water pipe and the pipe mixer are connected;
导流墙，设置于所述反应池体中部；A diversion wall is arranged in the middle of the reaction tank body;
矩阵式紫外灯辐照系统，设置于所述反应池体内；A matrix-type ultraviolet lamp irradiation system arranged in the reaction cell body;
催化剂防沉淀系统，设置于反应池体底部，配置有曝气管组；The catalyst anti-sedimentation system is arranged at the bottom of the reaction tank body and is equipped with an aeration tube group;
推流搅拌系统，包括至少两台潜水搅拌器，分别设置于导流墙两侧的对角处；The push-flow stirring system includes at least two submersible mixers, which are respectively arranged at opposite corners on both sides of the diversion wall;
催化剂超声溶解投加系统，与所述催化剂投加管相连；A catalyst ultrasonic dissolution dosing system connected to the catalyst dosing tube;
自控系统，用于循环式异相光催化氧化处理系统各部分的统一控制。Automatic control system for unified control of each part of cyclic heterogeneous photocatalytic oxidation treatment system.
其中，导流墙设置于反应池中部是为了更好的疏导水流延反应池池壁流动；催化剂防沉淀系统，设置于反应池体底部，配置有曝气管组，曝气管组连接适宜型号的鼓风机，使反应池中的催化剂被吹扫起来；推流搅拌系统即是在导流墙的两侧对角处分别配置一台潜水搅拌器，使水流延池壁及导流墙流动；导流墙、催化剂防沉淀系统以及推流搅拌系统三者配合使用，可使水流能够延池壁及导流墙形成很好的回路，与催化剂及助氧剂充分混合，保证催化剂能够充分接受紫外灯的辐照，使反应更加充分的进行。Among them, the diversion wall is arranged in the middle of the reaction tank in order to better divert water and flow the reaction tank wall; the catalyst anti-sedimentation system is set at the bottom of the reaction tank and is equipped with an aeration tube group, which is connected to a suitable model The blower enables the catalyst in the reaction tank to be swept up. The push flow stirring system is to configure a submersible agitator at the opposite sides of the diversion wall to make the water flow to the pool wall and the diversion wall. The combination of the flow wall, catalyst anti-sedimentation system and push flow stirring system can make the water flow form a good loop along the pool wall and the diversion wall, and it is fully mixed with the catalyst and the oxygen promoter to ensure that the catalyst can fully accept the ultraviolet lamp. The irradiation makes the reaction more fully.
根据本发明，优选地，所述反应池体的池壁与所述导流墙上均设有扰流板，所述扰流板倾斜设置，倾斜方向与水流方向一致。导流墙及池壁上设置扰流板是为了更好的搅动水体，增强混合物与紫外光源的接触几率，提高系统的处理效率。扰流板朝向需与水流方向保持一致，可以选择0.5-3.0m长，0.1-0.3m宽的板子，安装时可与池壁保持≤90°的夹角。According to the present invention, preferably, the pool wall of the reaction pool body and the diversion wall are both provided with a spoiler, and the spoiler is tilted, and the tilt direction is consistent with the water flow direction. Spoilers are installed on the diversion wall and the pool wall to better agitate the water body, increase the probability of contact between the mixture and the ultraviolet light source, and improve the processing efficiency of the system. The direction of the spoiler needs to be consistent with the direction of the water flow. You can choose a board with a length of 0.5-3.0m and a width of 0.1-0.3m. During installation, it can maintain an angle of ≤90 ° with the wall of the pool.
根据本发明，优选地，所述曝气管组设置于距离所述反应池体底部10-50cm处，底部开孔，沿管周均匀排布，所述曝气管组与鼓风机相连。本发明中曝气管组的高度以及开孔的设置均是为了将反应池中的催化剂吹扫起来，使其呈良好的悬浮状态，以保证与污水接触的催化剂的有效浓度，维持系统的处理效率。According to the present invention, preferably, the aeration tube group is disposed at a distance of 10-50 cm from the bottom of the reaction tank body, and a hole is opened at the bottom to be evenly arranged along the circumference of the tube. The aeration tube group is connected to a blower. In the present invention, the height of the aeration tube group and the setting of the openings are for purging the catalyst in the reaction tank to make it in a good suspension state, so as to ensure the effective concentration of the catalyst in contact with the sewage and maintain the system treatment. effectiveness.
根据本发明，进一步地，所述矩阵式紫外灯辐照系统包括矩阵式紫外灯组，整流器以及整流器电控箱，所述矩阵式紫外灯组包括不锈钢灯架、紫外灯以及防水密封套管，所述紫外灯通过所述不锈钢灯架固定，均匀分布在所述反应池体中，所述不锈钢灯架设有自清洗装置。矩阵式紫外灯组灯管数量可以根据实际需求从10-100根不等，灯管外配套防水密封套管，并根据需要按照不同序列排列。整体灯架配备自清洗装置，方便对外部石英套管进行维护清理。本发明根据实际需要按照比例可配备不同辐照波长的紫外灯管，主要辐照波长范围≤420nm，优选150nm到420nm之间。According to the present invention, further, the matrix-type ultraviolet lamp irradiation system includes a matrix-type ultraviolet lamp group, a rectifier, and a rectifier electric control box. The matrix-type ultraviolet lamp group includes a stainless steel lamp holder, an ultraviolet lamp, and a waterproof sealed sleeve. The ultraviolet lamp is fixed by the stainless steel lamp holder and is evenly distributed in the reaction cell body. The stainless steel lamp holder is provided with a self-cleaning device. The number of matrix ultraviolet lamp groups can vary from 10 to 100 according to actual needs. Waterproof sealed sleeves are provided outside the lamps and arranged in different sequences according to needs. The overall lamp holder is equipped with a self-cleaning device, which facilitates maintenance and cleaning of the external quartz sleeve. The invention can be equipped with ultraviolet lamp tubes with different irradiation wavelengths according to the actual needs according to the proportion. The main irradiation wavelength range is ≤420nm, preferably between 150nm and 420nm.
根据本发明，所述循环式异相光催化氧化处理系统还包括外部药剂投加系统，所述外部药剂投加系统可通过助氧剂投加管与所述管道混合器相连。According to the present invention, the cyclic heterogeneous photocatalytic oxidation treatment system further includes an external agent dosing system, and the external agent dosing system may be connected to the pipe mixer through an oxygen assistant dosing pipe.
根据本发明，优选地，所述外部药剂投加系统包括加药泵、搅拌罐、计量泵以及储药罐。According to the present invention, preferably, the external medicine dosing system includes a medicine dosing pump, a stirring tank, a metering pump, and a medicine storage tank.
根据本发明，优选地，所述催化剂超声溶解投加系统包括干粉投加器、搅拌罐、超声溶解箱以及计量泵。催化剂超声溶解投加系统是将催化剂超声溶解搅拌均匀后定量投入反应池中，保证反应池的催化剂的有效浓度，提高反应效率。According to the present invention, preferably, the catalyst ultrasonic dissolution dosing system includes a dry powder dosing device, a stirring tank, an ultrasonic dissolution box, and a metering pump. The catalyst ultrasonic dissolution and dosing system is to dissolve and stir the catalyst evenly and stir it into the reaction cell quantitatively to ensure the effective concentration of the catalyst in the reaction cell and improve the reaction efficiency.
为了方便观察设备的运行及后期维护清理等相关工作，所述反应池体上方可选择设有走道平台；同时为了便于矩阵式紫外灯组、推流搅拌器等设备的日常检修和更换，反应池体上方也可安装有可移动起吊装置。In order to facilitate the observation of equipment operation and subsequent maintenance and cleaning, a walkway platform can be selected above the reaction tank body; at the same time, to facilitate the daily maintenance and replacement of equipment such as matrix ultraviolet lamp units, push flow stirrers, etc. A movable lifting device can also be installed above the body.
根据本发明，优选地，所述自控系统为PLC系统，并设有电控箱。本发明中配备有统一的PLC系统，在旁边配备一个与系统相匹配电控箱(含自控界面)。自控系统主要用于统一控制鼓风机、矩阵式紫外灯组、进水泵、自清洗系统、外部药剂投加系统、催化剂投加及超声溶解系统等。According to the present invention, preferably, the automatic control system is a PLC system and is provided with an electric control box. The invention is equipped with a unified PLC system, and an electric control box (including an automatic control interface) matched with the system is provided beside. The automatic control system is mainly used for unified control of blowers, matrix UV lamps, water pumps, self-cleaning systems, external pharmaceutical dosing systems, catalyst dosing and ultrasonic dissolution systems.
根据本发明，系统中涉及到的外部药剂投加系统、催化剂超声溶解投加系统及自控系统可统一设置在设备间内。According to the present invention, the external pharmaceutical dosing system, catalyst ultrasonic dissolution dosing system and automatic control system involved in the system may be uniformly arranged in the equipment room.
本发明另一方面提供一种循环式异相光催化氧化处理方法，该循环式异相光催化氧化处理方法在上述循环式异相光催化氧化处理系统中进行，所述方法包括：将催化剂干粉投入催化剂超声溶解投加系统中，经超声溶解后通过催化剂投加管到达管道混合器；污水从进水管进入所述管道混合器，与所述催化剂混合后进入反应池体；在所述反应池体内，混合物与矩阵式紫外灯组接触，激发所述催化剂对污水进行氧化处理，完成净化后，净化水从出水管排出。Another aspect of the present invention provides a cyclic heterogeneous photocatalytic oxidation treatment method. The cyclic heterogeneous photocatalytic oxidation treatment method is performed in the above-mentioned cyclic heterogeneous photocatalytic oxidation treatment system. The method includes: dry catalyst powder Into the catalyst ultrasonic dissolution dosing system, after ultrasonic dissolution, it reaches the pipe mixer through the catalyst dosing pipe; the sewage enters the pipe mixer from the water inlet pipe, mixes with the catalyst and enters the reaction tank body; in the reaction pool Inside the body, the mixture is in contact with the matrix-type ultraviolet lamp set, which stimulates the catalyst to perform oxidation treatment on the sewage. After the purification is completed, the purified water is discharged from the water outlet pipe.
本发明中催化剂可选为金属氧化物纳米颗粒，为TiO 2、ZnO、ZrO 2、 WO 3及钛酸盐等光催化剂中的至少一种，粒径范围从100nm到1000nm变化不等。所述催化剂还任选包括氧化剂，所述氧化剂为双氧水、硫酸亚铁、及臭氧中的一种或者混合物。同时可以根据废水的水量、污染物的浓度和种类，灵活调节光催化剂的浓度、紫外灯管数量及紫外灯的波长，并添加适当的助氧化剂，真正实现不同废水的专业化处理。 The catalyst in the present invention may be selected from metal oxide nanoparticles, which are at least one of TiO 2 , ZnO, ZrO 2 , WO 3 and titanate photocatalysts, and the particle size ranges from 100 nm to 1000 nm. The catalyst optionally further includes an oxidant, and the oxidant is one or a mixture of hydrogen peroxide, ferrous sulfate, and ozone. At the same time, the concentration of photocatalyst, the number of UV lamps and the wavelength of UV lamps can be flexibly adjusted according to the amount of wastewater, the concentration and type of pollutants, and appropriate co-oxidants can be added to truly realize the professional treatment of different wastewaters.
本发明中污水经由进水口进入反应池，催化剂经由催化剂投加系统经进水管路处的管道混合器进入反应池，催化剂与污水在反应池内充分混合。反应池中被紫外光照射后，催化剂产生强氧化性物质(如：空穴、羟基自由基等)，强氧化性物质与水分子、氧气、臭氧、双氧水等反应，产生强氧化性物种，进而对废水中的有机物和还原性物质等进行氧化去除，达到高效去除水中难降解污染物的目的。In the invention, the sewage enters the reaction tank through the water inlet, and the catalyst enters the reaction tank through the catalyst mixer through the pipeline mixer at the water inlet pipeline, and the catalyst and the sewage are fully mixed in the reaction tank. After being irradiated with ultraviolet light in the reaction cell, the catalyst generates strongly oxidizing substances (such as holes, hydroxyl radicals, etc.). The strongly oxidizing substances react with water molecules, oxygen, ozone, and hydrogen peroxide to generate strongly oxidizing species. The organic substances and reducing substances in the wastewater are oxidized and removed to achieve the purpose of efficiently removing difficult-to-degrade pollutants in the water.
与现有技术相比，本发明具有如下优点：Compared with the prior art, the present invention has the following advantages:
1、本发明的光催化氧化处理系统中，紫外光组可以根据水量的增加而相应改变，紫外灯的波长也可以根据具体的水质进行变更。通过合理的分布，可实现光源的最大化利用，大大降低光催化氧化处理系统的运行费用；1. In the photocatalytic oxidation treatment system of the present invention, the ultraviolet light group can be correspondingly changed according to the increase of the amount of water, and the wavelength of the ultraviolet lamp can also be changed according to the specific water quality. Through reasonable distribution, the maximum utilization of the light source can be realized, and the operating cost of the photocatalytic oxidation treatment system can be greatly reduced;
2、本发明的光催化氧化处理系统中，防催化剂沉淀系统可以通过在反应池底部配备多个曝气支管，缩小反应区搅拌死区，以此保证催化剂不会在底部淤积，提高系统的反应效率；2. In the photocatalytic oxidation treatment system of the present invention, the anti-catalyst precipitation system can be equipped with multiple aeration branches at the bottom of the reaction tank to reduce the stirring dead zone of the reaction zone, thereby ensuring that the catalyst does not accumulate at the bottom and improve the reaction of the system effectiveness;
3、本发明的光催化氧化处理系统中，反应池壁及导流墙上安装有一定尺寸的扰流板，能够使催化剂与污水充分混合，大大增加反应区的传质效率；3. In the photocatalytic oxidation treatment system of the present invention, a certain size spoiler is installed on the reaction tank wall and the diversion wall, which can fully mix the catalyst and the sewage, and greatly increase the mass transfer efficiency in the reaction zone;
4、本发明的光催化氧化处理系统可以根据废水中污染物的浓度和种类，灵活调节光催化剂的浓度，并添加适当的助氧化剂，真正实现不同废水的专业化处理。4. The photocatalytic oxidation treatment system of the present invention can flexibly adjust the concentration of the photocatalyst according to the concentration and type of pollutants in the wastewater, and add appropriate co-oxidants to truly realize the professional treatment of different wastewaters.
本发明的其它特征和优点将在随后具体实施方式部分予以详细说明。Other features and advantages of the present invention will be described in detail in the following detailed description.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
通过结合附图对本发明示例性实施方式进行更详细的描述，本发明的上述以及其它目的、特征和优势将变得更加明显，其中，在本发明示例性实施方式中，相同的参考标号通常代表相同部件。The above and other objects, features, and advantages of the present invention will become more apparent by describing the exemplary embodiments of the present invention in more detail with reference to the accompanying drawings. In the exemplary embodiments of the present invention, the same reference numerals generally represent Same parts.
图1示出了根据本发明实施例1的光催化氧化处理系统俯视图。FIG. 1 shows a top view of a photocatalytic oxidation treatment system according to Embodiment 1 of the present invention.
图2示出了根据本发明实施例1的光催化氧化处理系统侧视图。FIG. 2 shows a side view of a photocatalytic oxidation treatment system according to Embodiment 1 of the present invention.
附图标记说明：Reference sign description:
1、进水管；2、管道混合器；3、催化剂投加管；4、助氧剂投加管；5、设备间(自控及加药间)；6、走道平台；7、矩阵式紫外灯光辐照系统；8、潜水搅拌器；9、导流墙；10、曝气管；11、排空管；12、出水管；13、反应池体；14、扰流板；15、自控及加药间。1. Water inlet pipe; 2. Pipeline mixer; 3. Catalyst dosing pipe; 4. Oxygen aid dosing pipe; 5. Equipment room (automatic control and dosing room); 6. Walkway platform; 7. Matrix UV light Irradiation system; 8. Submersible mixer; 9. Diversion wall; 10. Aeration pipe; 11. Drain pipe; 12. Outlet pipe; 13. Reaction tank body; 14. Spoiler; 15. Self-control and adding Medicine room.
具体实施方式detailed description
下面将更详细地描述本发明的优选实施方式。虽然以下描述了本发明的优选实施方式，然而应该理解，可以以各种形式实现本发明而不应被这里阐述的实施方式所限制。Hereinafter, preferred embodiments of the present invention will be described in more detail. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein.
实施例1Example 1
采用如图1所示循环式异相光催化氧化处理系统，包括：反应池体13，导流墙9，矩阵式紫外灯辐照系统7，催化剂防沉淀系统，推流搅拌系统，催化剂超声溶解投加系统。反应池体13设有催化剂投加管3、进水管1、出水管12、管道混合器2以及排空管11，催化剂投加管3、进水管1与管道混合器2相连。反应池体13上方设有走道平台6以及可移动起吊装置。反应池体13中部设置导流墙9，反应池体13的池壁与导流墙9上均设有扰流板14，扰流板14倾斜设置，倾斜方向与水流方向一致。推流搅拌系统包括两台潜水搅拌器8，分别设置于导流墙9两侧的对角处。反应池体13内设置有矩阵式紫外灯辐照系统7，矩阵式紫外灯辐照系统7包括矩阵式紫外 灯组，整流器以及整流器电控箱，矩阵式紫外灯组包括带有自清洗装置的不锈钢灯架、紫外灯以及防水密封套管，紫外灯通过所述不锈钢灯架固定，均匀分布在所述反应池体13中。反应池体13底部设置有催化剂防沉淀系统，配置有曝气管组，曝气管组设置于距离所述反应池体底部10cm处，底部开孔，沿管周均匀排布，并与鼓风机相连。催化剂超声溶解投加系统，与催化剂投加管3相连，包括干粉投加器、搅拌罐、超声溶解箱以及计量泵。自控系统为PLC系统并设有电控箱。此外还包括外部药剂投加系统，外部药剂投加系统通过助氧剂投加管4与管道混合器2相连，包括加药泵、搅拌罐、计量泵以及储药罐。该系统中涉及到的外部药剂投加系统、催化剂超声溶解投加系统及自控系统均统一设置在设备间5内。A cyclic heterogeneous photocatalytic oxidation treatment system as shown in FIG. 1 is used, including: a reaction cell body 13, a diversion wall 9, a matrix ultraviolet lamp irradiation system 7, a catalyst anti-precipitation system, a push flow stirring system, and a catalyst ultrasonic dissolution. Dosing system. The reaction tank body 13 is provided with a catalyst dosing pipe 3, an inlet pipe 1, an outlet pipe 12, a pipe mixer 2 and an exhaust pipe 11, and the catalyst dosing pipe 3 and the water inlet pipe 1 are connected to the pipe mixer 2. An aisle platform 6 and a movable lifting device are arranged above the reaction cell body 13. A diversion wall 9 is provided in the middle of the reaction cell body 13. A spoiler 14 is provided on both the pool wall and the diversion wall 9 of the reaction cell body 13. The spoiler 14 is disposed obliquely, and the inclination direction is consistent with the water flow direction. The push flow stirring system includes two submersible stirrers 8 respectively disposed at diagonal corners on both sides of the diversion wall 9. The reaction cell body 13 is provided with a matrix-type ultraviolet lamp irradiation system 7. The matrix-type ultraviolet lamp irradiation system 7 includes a matrix-type ultraviolet lamp group, a rectifier, and a rectifier electric control box. The matrix-type ultraviolet lamp group includes a self-cleaning device. The stainless steel lamp holder, the ultraviolet lamp and the waterproof sealing sleeve are fixed by the stainless steel lamp holder and are evenly distributed in the reaction cell body 13. The bottom of the reaction tank body 13 is provided with a catalyst anti-sedimentation system, and an aeration tube group is arranged at a distance of 10 cm from the bottom of the reaction cell body. . The catalyst ultrasonic dissolution dosing system is connected to the catalyst dosing pipe 3 and includes a dry powder dosing device, a stirring tank, an ultrasonic dissolution box, and a metering pump. The automatic control system is a PLC system and is equipped with an electric control box. In addition, it also includes an external medicament dosing system. The external medicament dosing system is connected to the pipe mixer 2 through an oxygen-aid dosing pipe 4 and includes a dosing pump, a stirring tank, a metering pump, and a medicine storage tank. The external pharmaceutical dosing system, catalyst ultrasonic dissolution dosing system and automatic control system involved in this system are all arranged in the equipment room 5 uniformly.
工艺流程如下：The process is as follows:
通过水泵将污染水体由进水管1处泵入系统，将催化剂干粉投加入催化剂超声溶解系统中，经超声溶解预处理后由催化剂投加管3投入管道混合器2内，同时助氧剂由助氧剂投加管4进入管道混合器2，污水从进水管1进入所述管道混合器2，与催化剂、助氧剂混合后进入反应池体13；在反应池体13内，在潜水搅拌器8、导流墙9及底部曝气管10的作用下，催化剂、助氧剂与污染水体充分混合均匀，混合物通过与分布均匀的矩阵式紫外灯架充分接触，使在反应池13中的纳米光催化剂由紫外灯管激发产生强氧化性物种，对污水中的有机物和还原性污染物质进行氧化去除，完成净化后，净化水从出水管12排出，进入清水池。该系统会定期由排空管11更换池内的催化剂。Contaminated water is pumped into the system from a water inlet pipe by a water pump, and the catalyst dry powder is added to the catalyst ultrasonic dissolution system. After the ultrasonic dissolution pretreatment, the catalyst addition pipe 3 is put into the pipe mixer 2, and the oxygen-assisting agent is assisted by The oxygen agent feeding pipe 4 enters the pipe mixer 2, and the sewage enters the pipe mixer 2 from the water inlet pipe 1, and is mixed with the catalyst and the oxygen-assisting agent into the reaction tank body 13; in the reaction tank body 13, in the submersible mixer 8. Under the action of the diversion wall 9 and the bottom aeration tube 10, the catalyst, the oxygen-assisting agent and the polluted water body are fully mixed uniformly, and the mixture is fully contacted with the uniformly distributed matrix ultraviolet lamp holder, so that the nanometer in the reaction cell 13 The photocatalyst is excited by the ultraviolet lamp tube to produce strong oxidizing species, and oxidizes and removes organic matter and reducing pollutants in the sewage. After the purification is completed, the purified water is discharged from the water outlet pipe 12 and enters the clear water tank. The system periodically replaces the catalyst in the tank by the exhaust pipe 11.
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。The embodiments of the present invention have been described above, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the various embodiments described.

Claims (10)

  1. 一种循环式异相光催化氧化处理系统，其特征在于，该循环式异相光催化氧化处理系统包括：A cyclic heterogeneous photocatalytic oxidation treatment system is characterized in that the cyclic heterogeneous photocatalytic oxidation treatment system includes:
    反应池体，设有催化剂投加管、进水管、出水管、管道混合器以及排空管，所述催化剂投加管、所述进水管与所述管道混合器相连；The reaction tank body is provided with a catalyst adding pipe, a water inlet pipe, a water outlet pipe, a pipe mixer and an exhaust pipe, and the catalyst adding pipe, the water pipe and the pipe mixer are connected;
    导流墙，设置于所述反应池体中部；A diversion wall is arranged in the middle of the reaction tank body;
    矩阵式紫外灯辐照系统，设置于所述反应池体内；A matrix-type ultraviolet lamp irradiation system arranged in the reaction cell body;
    催化剂防沉淀系统，设置于反应池体底部，配置有曝气管组；The catalyst anti-sedimentation system is arranged at the bottom of the reaction tank body and is equipped with an aeration tube group;
    推流搅拌系统，包括至少两台潜水搅拌器，分别设置于导流墙两侧的对角处；The push-flow stirring system includes at least two submersible mixers, which are respectively arranged at opposite corners on both sides of the diversion wall;
    催化剂超声溶解投加系统，与所述催化剂投加管相连；A catalyst ultrasonic dissolution dosing system connected to the catalyst dosing tube;
    自控系统，用于循环式异相光催化氧化处理系统各部分的统一控制。Automatic control system for unified control of each part of cyclic heterogeneous photocatalytic oxidation treatment system.
  2. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述反应池体的池壁与所述导流墙上均设有扰流板，所述扰流板倾斜设置，倾斜方向与水流方向一致。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein a spoiler is provided on the wall of the reaction cell body and the diversion wall, and the spoiler is inclined , The tilt direction is consistent with the direction of the water flow.
  3. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述曝气管组设置于距离所述反应池体底部10-50cm处，底部开孔，沿管周均匀排布，所述曝气管组与鼓风机相连。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, characterized in that the aeration tube group is disposed at a distance of 10-50 cm from the bottom of the reaction tank body, and the bottom is opened with holes arranged uniformly along the circumference of the tube. Cloth, the aeration tube group is connected with a blower.
  4. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述矩阵式紫外灯辐照系统包括矩阵式紫外灯组，整流器以及整流器电控箱，所述矩阵式紫外灯组包括不锈钢灯架、紫外灯以及防水密封套管，所述紫外灯通过所述不锈钢灯架固定，均匀分布在所述反应池体中，所述不锈钢灯架设有自清洗装置。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein the matrix type ultraviolet lamp irradiation system comprises a matrix type ultraviolet lamp group, a rectifier, and a rectifier electric control box, and the matrix type ultraviolet lamp The group includes a stainless steel lamp holder, an ultraviolet lamp, and a waterproof sealing sleeve. The ultraviolet lamp is fixed by the stainless steel lamp holder and evenly distributed in the reaction cell body. The stainless steel lamp holder is provided with a self-cleaning device.
  5. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，还包括外部药剂投加系统，所述外部药剂投加系统通过助氧剂投加管与所述管道混合器相连。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, further comprising an external agent dosing system, wherein the external agent dosing system is connected to the pipe mixer through an oxygen assistant dosing pipe. .
  6. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述外部药剂投加系统包括加药泵、搅拌罐、计量泵以及储药罐。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein the external medicine adding system comprises a medicine adding pump, a stirring tank, a metering pump, and a medicine storing tank.
  7. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述催化剂超声溶解投加系统包括干粉投加器、搅拌罐、超声溶解箱以及计量泵。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein the catalyst ultrasonic dissolution dosing system comprises a dry powder dosing unit, a stirring tank, an ultrasonic dissolution tank, and a metering pump.
  8. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述反应池体上方设有走道平台；所述反应池体上方安装有可移动起吊装置。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein a walkway platform is provided above the reaction tank body; and a movable lifting device is installed above the reaction tank body.
  9. 根据权利要求1所述的循环式异相光催化氧化处理系统，其特征在于，所述自控系统为PLC系统，并设有电控箱。The cyclic heterogeneous photocatalytic oxidation treatment system according to claim 1, wherein the automatic control system is a PLC system and is provided with an electric control box.
  10. 一种循环式异相光催化氧化处理方法，该循环式异相光催化氧化处理方法在权利要求1-9中任意一项所述的循环式异相光催化氧化处理系统中进行，所述方法包括：将催化剂干粉投入催化剂超声溶解投加系统中，经超声溶解后通过催化剂投加管到达管道混合器；污水从进水管进入所述管道混合器，与所述催化剂混合后进入反应池体；在所述反应池体内，混合物与矩阵式紫外灯组接触，激发所述催化剂对污水进行氧化处理，完成净化后，净化水从出水管排出；所述催化剂为TiO 2、ZnO、ZrO 2、WO 3及 钛酸盐等光催化剂中的至少一种，还任选包括氧化剂，所述氧化剂为双氧水、硫酸亚铁、及臭氧中的一种或者混合物。 A cyclic heterogeneous photocatalytic oxidation treatment method, which is performed in the cyclic heterogeneous photocatalytic oxidation treatment system according to any one of claims 1-9, said method The method includes: putting the catalyst dry powder into the catalyst ultrasonic dissolution dosing system, and passing the catalyst dissolution pipe to the pipeline mixer after the ultrasonic dissolution; the sewage enters the pipeline mixer from the water inlet pipe, mixes with the catalyst, and enters the reaction tank body; In the body of the reaction tank, the mixture is in contact with a matrix-type ultraviolet lamp unit, which stimulates the catalyst to oxidize sewage, and after the purification is completed, the purified water is discharged from the outlet pipe; the catalysts are TiO 2 , ZnO, ZrO 2 , and WO At least one of the photocatalysts such as 3 and titanate may optionally include an oxidant, and the oxidant is one or a mixture of hydrogen peroxide, ferrous sulfate, and ozone.
PCT/CN2018/123801 2018-07-10 2018-12-26 Cyclic heterogeneous photocatalytic oxidation treatment system and treatment method WO2020010806A1 (en)

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