CN215288073U - System for utilize old and useless board-like denitration catalyst to handle industrial waste water - Google Patents
System for utilize old and useless board-like denitration catalyst to handle industrial waste water Download PDFInfo
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- CN215288073U CN215288073U CN202120555781.6U CN202120555781U CN215288073U CN 215288073 U CN215288073 U CN 215288073U CN 202120555781 U CN202120555781 U CN 202120555781U CN 215288073 U CN215288073 U CN 215288073U
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Abstract
The utility model discloses a system for utilize old and useless board-like denitration catalyst to handle industrial waste water belongs to denitration catalyst and waste water treatment technical field, including the photocatalytic reaction device, airtight glass device has been arranged at photocatalytic reaction device's inside middle part, and the ultraviolet lamp has been arranged to airtight glass device's inside for as the light source of photocatalytic reaction, board-like denitration catalyst has been arranged perpendicularly to photocatalytic reaction device's both sides inner wall, and photocatalytic reaction device's one end is provided with the water inlet, and photocatalytic reaction device's the other end is provided with the delivery port, and waste water is at the water inlet of photocatalytic reaction deviceThe channel between the plate-type denitration catalyst and the ultraviolet lamp flows, the water inlet, the water outlet and the channel are communicated, the top of the photocatalytic reaction device is provided with an air blowing device for conveying air to the surface of the plate-type denitration catalyst and providing O required by photocatalytic reaction2. The utility model discloses simple structure can draw materials on the spot, can effectually carry out waste water treatment, and application prospect is extensive.
Description
Technical Field
The utility model belongs to the technical field of denitration catalyst and waste water treatment, concretely relates to utilize system of old and useless board-like denitration catalyst treatment industrial waste water.
Background
With the continuous development of modern industry, wastewater containing a large amount of toxic and harmful pollutants which are difficult to degrade biologically is discharged into the environment, so that serious environmental pollution is caused, and the conventional water treatment methods, such as a physical chemical method and a biological treatment method, cannot meet the requirements of purification treatment on technology and economy. Using the semiconductor material TiO2The technology for degrading environmental pollutants by photocatalytic oxidation as a catalyst has an important position in various environmental pollution control and treatment technologies due to the advantages of low cost, high efficiency, cleanness, no toxicity and the like. The technical principle is TiO2Absorbing ultraviolet light with a band gap of more than 3-3.2 eV can form electrons on a conduction band and holes on a valence band, and the electrons and the holes are respectively diffused to the surface of titanium dioxide to generate strong oxidizing OH (free radical) and O in solution2 -(free radical) is effective in removing pollutants (organic and inorganic substances) from wastewater. At present, the main control of the emission of nitrogen oxides in flue gas is Selective Catalytic Reduction (SCR), and most of the used catalysts are TiO2As a carrier, V2O5/WO3Is a porous medium of active components, and also provides a medium material for treating wastewater by photocatalytic reaction. The utility model discloses fully consider recycle and TiO of old and useless denitration catalyst2The photocatalytic performance of the denitration catalyst and the technical characteristics of the two fields of wastewater treatment are combined to develop a new wastewater treatment process system.
In the prior art, CN203877938U discloses a novel high-efficiency energy-saving wastewater treatment device, and the patent technology provides a device for catalytic degradation of industrial wastewater by using titanium dioxide as a photocatalyst and ultraviolet visible light as a light source to drive reaction, but the problems of the form of the titanium dioxide photocatalyst in the wastewater, the arrangement in the treatment device and the like are not clear.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a simple structure, convenient operation, can draw materials on the spot utilize old and useless board-like denitration catalyst to handle industrial waste water's system, rely on current waste water treatment process, can realize recycling of old and useless catalyst, also can effectively reduce the pollutant concentration in the waste water through the photocatalytic reaction, alleviate follow-up industrial waste water treatment system's pressure to reduction in production cost.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides an utilize old and useless board-like denitration catalyst to handle system of industrial waste water, characterized by, including photocatalytic reaction device, airtight glass device has been arranged at photocatalytic reaction device's inside middle part, the ultraviolet lamp has been arranged to airtight glass device's inside for as photocatalytic reaction's light source, board-like denitration catalyst has been arranged perpendicularly to photocatalytic reaction device's both sides inner wall, photocatalytic reaction device's one end is provided with the water inlet, photocatalytic reaction device's the other end is provided with the delivery port, be provided with the passageway that is used for waste water to flow between board-like denitration catalyst and the ultraviolet lamp, water inlet, delivery port and the passageway intercommunication, photocatalytic reaction device's top is provided with the air-blast device for to board-like denitration catalyst's surface transport air, provide the O that photocatalytic reaction needs2。
Further, the plate-type denitration catalyst is a waste catalyst of an SCR denitration device, and the main component of the plate-type denitration catalyst is TiO2Crystal ofThe structure is anatase type, and the structure is fixed on a stainless steel metal sieve plate net in an extruding way.
Further, the closed glass device is of a flat cuboid structure.
Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses simple structure can draw materials on the spot, relies on current waste water treatment process, and investment and running cost are low, and maneuverability is strong, all has the suitability to all kinds of thermal power enterprises and waste water treatment enterprises, can effectually carry out waste water treatment, has good environmental protection benefit and economic benefits, and application prospect is extensive.
Drawings
Fig. 1 is a schematic structural view of the photocatalytic reaction apparatus of the present invention.
In the figure: the device comprises a photocatalytic reaction device 1, a plate-type denitration catalyst 2, a closed glass device 3, an ultraviolet lamp 4, a water inlet 5, a water outlet 6 and a blower device 7.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, a system for treating industrial wastewater by using waste plate-type denitration catalyst, comprising a photocatalytic reaction device 1, a closed glass device 3 is arranged in the middle of the inside of the photocatalytic reaction device 1, the closed glass device 3 is in a flat cuboid structure, an ultraviolet lamp 4 is arranged inside the closed glass device 3 and serves as a light source for photocatalytic reaction, plate-type denitration catalysts 2 are vertically arranged on the inner walls of the two sides of the photocatalytic reaction device 1, a water inlet 5 is arranged at one end of the photocatalytic reaction device 1, a water outlet 6 is arranged at the other end of the photocatalytic reaction device 1, a channel is arranged between the plate-type denitration catalysts 2 and the ultraviolet lamp 4, the water inlet 5, the water outlet 6 and the channel are communicated, wastewater water flows through the channel between the plate-type denitration catalysts 2 and the ultraviolet lamp 4, the ultraviolet light passes through the closed glass device 3 and the wastewater irradiates on the plate-type denitration catalysts 2, under the irradiation of ultraviolet light, pollutants in the wastewater are oxidized and removed, and the top of the photocatalytic reaction device 1An air blower 7 is provided to continuously supply air to the surface of the plate-type denitration catalyst 2 to supply O required for the photocatalytic reaction2。
The process flow comprises three procedures of waste catalyst pretreatment, photocatalytic reaction and industrial wastewater treatment.
The waste catalyst is a waste plate-type denitration catalyst 2 of an SCR denitration device, and the main component of the waste catalyst is TiO2The crystal structure is anatase type, and is fixed on a stainless steel metal sieve plate net in an extruding way.
The waste catalyst is pretreated by adopting physical blowing and high-pressure water washing processes to remove attachments on the surface of the plate-type denitration catalyst 2.
The photocatalytic reaction employs a photocatalytic reaction apparatus 1.
The industrial wastewater treatment adopts the existing industrial wastewater treatment device to carry out secondary purification treatment on the effluent of the photocatalytic reaction device 1, and finally realizes the standard discharge or recycling of the wastewater, and the main process is that the effluent of the photocatalytic reaction device 1 → alkali neutralization → flocculation → precipitation → acid neutralization → standard discharge.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (3)
1. The system for treating industrial wastewater by using waste plate-type denitration catalyst is characterized by comprising a photocatalytic reaction device (1), wherein a closed glass device (3) is arranged in the middle of the inside of the photocatalytic reaction device (1), an ultraviolet lamp (4) is arranged inside the closed glass device (3) and is used as a light source for photocatalytic reaction, plate-type denitration catalyst (2) is vertically arranged on the inner walls of the two sides of the photocatalytic reaction device (1), a water inlet (5) is formed in one end of the photocatalytic reaction device (1), and the photocatalytic reaction device is used for treating industrial wastewaterThe other end of the chemical reaction device (1) is provided with a water outlet (6), a channel for wastewater flowing is arranged between the plate-type denitration catalyst (2) and the ultraviolet lamp (4), the water inlet (5), the water outlet (6) and the channel are communicated, the top of the photocatalytic reaction device (1) is provided with a blowing device (7) for conveying air to the surface of the plate-type denitration catalyst (2) and providing O required by photocatalytic reaction2。
2. The system for treating industrial wastewater by using waste plate-type denitration catalysts as claimed in claim 1, wherein the plate-type denitration catalyst (2) is a waste catalyst of SCR denitration device, and the main component is TiO2。
3. The system for treating industrial wastewater by using waste plate-type denitration catalysts as claimed in claim 1, wherein the closed glass device (3) has a flat rectangular parallelepiped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555781.6U CN215288073U (en) | 2021-03-18 | 2021-03-18 | System for utilize old and useless board-like denitration catalyst to handle industrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555781.6U CN215288073U (en) | 2021-03-18 | 2021-03-18 | System for utilize old and useless board-like denitration catalyst to handle industrial waste water |
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| Publication Number | Publication Date |
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| CN215288073U true CN215288073U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202120555781.6U Active CN215288073U (en) | 2021-03-18 | 2021-03-18 | System for utilize old and useless board-like denitration catalyst to handle industrial waste water |
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| CN (1) | CN215288073U (en) |
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2021
- 2021-03-18 CN CN202120555781.6U patent/CN215288073U/en active Active
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