CN216426977U - Continuous device for photocatalytic degradation of coal tar wastewater - Google Patents
Continuous device for photocatalytic degradation of coal tar wastewater Download PDFInfo
- Publication number
- CN216426977U CN216426977U CN202122626818.2U CN202122626818U CN216426977U CN 216426977 U CN216426977 U CN 216426977U CN 202122626818 U CN202122626818 U CN 202122626818U CN 216426977 U CN216426977 U CN 216426977U
- Authority
- CN
- China
- Prior art keywords
- photocatalytic degradation
- catalyst
- solid
- coal tar
- liquid separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The utility model belongs to the technical field of coal tar waste water treatment in the environmental protection engineering, a continuous device of photocatalytic degradation coal tar waste water is related to. The continuous device comprises a coal tar wastewater interface, a stirring kettle, a preheater, a light-transmitting photocatalytic degradation reactor, a solid-liquid separator and a purified water storage tank which are sequentially connected along the liquid flowing direction, and further comprises a photocatalytic degradation catalyst circulating branch; a catalyst interface is arranged on the stirring kettle, a solid outlet of the solid-liquid separator is connected with the catalyst interface through a catalyst circulation branch, a gas outlet of the solid-liquid separator is connected with a waste gas interface, and a liquid outlet of the solid-liquid separator is connected with a purified water storage tank; the bottom of the photocatalytic degradation reactor is provided with a micron bubble generator, and the inlet of the micron bubble generator is connected with oxygen and the liquid outlet of the preheater; and the side wall of the photocatalytic degradation reactor is provided with an ultraviolet light emitting device, and the ultraviolet light emitting device emits ultraviolet light into the photocatalytic degradation reactor. The device has reasonable process route and good organic matter degradation effect.
Description
Technical Field
The utility model belongs to the technical field of coal tar waste water treatment in the environmental protection engineering, a continuous device of photocatalytic degradation coal tar waste water is related to.
Background
The coal tar is an important byproduct in coal chemical industry, the components of the coal tar, such as phenolic substances, anthracene oil, naphthalene oil, aromatic hydrocarbon and the like, can be used as downstream chemical processing raw materials after separation and purification, and meanwhile, the coal tar can be used for producing high-quality fuel oil such as aviation kerosene, high-performance gasoline, lubricating oil and the like by coupling a crude oil processing technology. Compared with crude oil wastewater and coking wastewater, the refractory organic matters in the wastewater generated in the production processes of storage, processing and the like of coal tar are extremely complex in composition, contain heteroatoms such as sulfur, nitrogen and oxygen, and are mostly condensed ring aromatic compounds. The organic matters of the components have high toxicity and degradation difficulty, and have good dispersibility in wastewater and higher treatment difficulty.
At present, the method for effectively treating the organic matters in the wastewater mainly comprises a biochemical method and a physical and chemical method. The biochemical method utilizes the microbial degradation to degrade organic matters into carbon dioxide, water and small componentsOrganic substances and the like, and the treatment process is mature. But has high toxicity, high concentration and BOD for the coal tar wastewater5For wastewater with low concentration, the degradation of organic matters is difficult to realize by directly adopting a biochemical degradation mode.
The physical and chemical method adopts the efficient oxidation effect of chemical reagents to oxidize organic matters into carbon dioxide, water and low-toxicity small molecular compounds, reduces the concentration and toxicity of the organic matters in the wastewater, and treats the wastewater through a biochemical method. However, the currently used means such as ozone oxidation, Fenton oxidation, electrolytic oxidation and the like have high raw material cost of the oxidant, large investment cost and high wastewater treatment cost.
Therefore, how to further reduce the cost for degrading the organic matters in the coal tar wastewater and realize the continuous industrial production of degrading the organic matters in the coal tar wastewater is a problem to be solved urgently in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a continuous device that provides photocatalysis degradation coal tar waste water adopts titanium dioxide/molybdenum disulfide combined material for photocatalysis degradation catalyst on the device, and oxygen is the oxidant, realizes coal tar waste water organic matter degradation.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a continuous device for photocatalytic degradation of coal tar wastewater, which comprises a coal tar wastewater interface, a stirring kettle, a preheater, a photocatalytic degradation reactor made of a light-transmitting material, a solid-liquid separator and a purified water storage tank which are sequentially connected along the liquid flowing direction, and further comprises a photocatalytic degradation catalyst circulation branch;
a catalyst interface is arranged on the stirring kettle, a solid outlet of the solid-liquid separator is connected with the catalyst interface through a catalyst circulation branch, a gas outlet of the solid-liquid separator is connected with a waste gas interface, and a liquid outlet of the solid-liquid separator is connected with a purified water storage tank;
the bottom of the photocatalytic degradation reactor is provided with a micron bubble generator, and the inlet of the micron bubble generator is connected with oxygen and the liquid outlet of the preheater; and the side wall of the photocatalytic degradation reactor is provided with an ultraviolet light emitting device, and the ultraviolet light emitting device emits ultraviolet light into the photocatalytic degradation reactor.
Furthermore, the photocatalytic degradation catalyst circulation branch comprises a circulation catalyst storage tank, and an inlet and an outlet of the circulation catalyst storage tank are respectively connected with the solid-liquid separator and the catalyst interface through a delivery pump.
Further, the photocatalytic degradation catalyst is a titanium dioxide/molybdenum disulfide composite material.
Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses device photocatalysis degradation coal tar waste water's continuous device, the reagent cost that process route is reasonable, organic matter degradation effect is good, use is low, can realize continuous waste water treatment, and the industry enlargies the transformation feasibility height, is the device of coal tar waste water treatment technique in the efficient environmental protection engineering.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 shows a continuous device for photocatalytic degradation of coal tar wastewater according to the present invention;
the respective symbols in the figure are as follows: 1 oxygen, 2 coal tar wastewater interfaces, 3 catalyst interfaces, 4 stirring kettles, 5 preheaters, 6-micron bubble generators, 7 photocatalytic degradation reactors, 8 solid-liquid separators, 9 purified water storage tanks, 10 circulating catalyst storage tanks, 11 ultraviolet light emitting devices, 12 waste gas interfaces and 13 purified water interfaces.
Detailed Description
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the continuous device for photocatalytic degradation of coal tar wastewater provided by this embodiment includes a coal tar wastewater interface 2, a stirring kettle 4, a preheater 5, a photocatalytic degradation reactor 7 made of a light-transmitting material, a solid-liquid separator 8, and a purified water storage tank 9, which are sequentially connected along a liquid flowing direction, and further includes a photocatalytic degradation catalyst circulation branch. The photocatalytic degradation catalyst circulation branch comprises a circulation catalyst storage tank 10. The photocatalytic degradation catalyst is a titanium dioxide/molybdenum disulfide composite material.
The stirred tank is provided with a catalyst interface 3. The solid outlet at the bottom of the solid-liquid separator is connected with the catalyst interface through a circulating catalyst storage tank, the gas outlet at the top of the solid-liquid separator is connected with a waste gas interface 12, the liquid outlet at the side part of the solid-liquid separator is connected with a purified water storage tank, and the bottom of the purified water storage tank is provided with a purified water interface 13. And two ends of the circulating catalyst storage tank are respectively provided with a delivery pump.
The bottom of the photocatalytic degradation reactor is provided with a micron bubble generator 6, and the inlet of the micron bubble generator is connected with the oxygen 1 and the liquid outlet of the preheater. The side wall of the photocatalytic degradation reactor is provided with an ultraviolet light emitting device 11, and the ultraviolet light emitting device emits ultraviolet light into the photocatalytic degradation reactor.
According to the working principle of the continuous device, the titanium dioxide/molybdenum disulfide composite material and the coal tar wastewater are stirred in a stirring kettle, so that the catalyst is uniformly dispersed in the wastewater to obtain a wastewater suspension. The catalyst wastewater suspension and the oxygen respectively enter the micron bubble generator after being preheated to the reaction temperature by the preheater, and the oxygen can form bubbles with the size of dozens of microns under the action of the micron bubble generator, so that the catalyst and the oxygen micron bubbles are uniformly dispersed in the wastewater. The micron bubble oxygen can also improve the contact area of the wastewater and the oxygen, improve the mass transfer rate of the oxygen dissolved in the wastewater and improve the oxidation reaction rate. Through the catalytic degradation effect of the titanium dioxide/molybdenum disulfide composite material in the photocatalytic degradation reactor, under the conditions of oxygen and ultraviolet illumination, organic matters in the coal tar wastewater are degraded into substances such as water, carbon dioxide, small molecular compounds and the like, the concentration and toxicity of the organic matters in the coal tar wastewater are reduced, and conditions are provided for the subsequent treatment of the coal tar wastewater. The retention time of the wastewater in the photocatalytic degradation reactor can be adjusted by adjusting the wastewater feeding flow for the coal tar wastewater with different pollution degrees. And then, the degraded wastewater, the catalyst and the gas enter a solid-liquid separator, the gas is separated from the top of the solid-liquid separator and discharged into a subsequent system, the liquid is laterally separated from the solid-liquid separator and enters a purified water storage tank, and the catalyst is separated from the bottom of the solid-liquid separator and returns to the stirring kettle through a circulating catalyst storage tank for continuous use.
It is to be understood that the present invention has been described in detail with reference to the foregoing embodiments, and that modifications and equivalents of the various embodiments described above may be made by those skilled in the art, or some of the technical features may be substituted. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A continuous device for photocatalytic degradation of coal tar wastewater is characterized by comprising a coal tar wastewater interface (2), a stirring kettle (4), a preheater (5), a photocatalytic degradation reactor (7) made of a light-transmitting material, a solid-liquid separator (8) and a purified water storage tank (9) which are sequentially connected along the liquid circulation direction, and further comprising a photocatalytic degradation catalyst circulation branch;
a catalyst interface (3) is arranged on the stirring kettle (4), a solid outlet of the solid-liquid separator (8) is connected with the catalyst interface (3) through a catalyst circulation branch, a gas outlet of the solid-liquid separator (8) is connected with a waste gas interface (12), and a liquid outlet of the solid-liquid separator (8) is connected with a purified water storage tank (9);
the bottom of the photocatalytic degradation reactor (7) is provided with a micron bubble generator (6), and the inlet of the micron bubble generator (6) is connected with the oxygen (1) and the liquid outlet of the preheater (5); the side wall of the photocatalytic degradation reactor (7) is provided with an ultraviolet light emitting device (11), and the ultraviolet light emitting device (11) emits ultraviolet light into the photocatalytic degradation reactor (7).
2. The continuous device for photocatalytic degradation of coal tar wastewater according to claim 1, wherein the photocatalytic degradation catalyst circulation branch comprises a circulation catalyst storage tank (10), and an inlet and an outlet of the circulation catalyst storage tank (10) are respectively connected with the solid-liquid separator (8) and the catalyst interface (3) through a delivery pump.
3. The continuous device for photocatalytic degradation of coal tar wastewater according to claim 1 or 2, wherein the photocatalytic degradation catalyst is a titanium dioxide/molybdenum disulfide composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122626818.2U CN216426977U (en) | 2021-10-29 | 2021-10-29 | Continuous device for photocatalytic degradation of coal tar wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122626818.2U CN216426977U (en) | 2021-10-29 | 2021-10-29 | Continuous device for photocatalytic degradation of coal tar wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216426977U true CN216426977U (en) | 2022-05-03 |
Family
ID=81334297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122626818.2U Active CN216426977U (en) | 2021-10-29 | 2021-10-29 | Continuous device for photocatalytic degradation of coal tar wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216426977U (en) |
-
2021
- 2021-10-29 CN CN202122626818.2U patent/CN216426977U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9422180B2 (en) | Method of treatment of coke wastewater | |
| CN112851026B (en) | High-concentration degradation-resistant organic wastewater system and treatment process thereof | |
| CN102897894B (en) | Combined unit type equipment for treating industrial wastewater by ozone catalyzing method | |
| CN202766327U (en) | High-efficiency recyclable photocatalysis industrial wastewater treatment device | |
| WO2012075615A1 (en) | Integrated bioreactor and use thereof and method for treating high content organic wastewater | |
| CN1257844C (en) | Method and apparatus for treating sewage using multiphase multicomponent catalysis electrolytic oxidation process | |
| CN1039006A (en) | The method of purifying waste water | |
| CN109516553A (en) | Efficient anaerobic denitrification organisms reactor | |
| CN206607129U (en) | A kind of apparatus for treating carbonized waste water | |
| CN206127063U (en) | Petrochemical sewage degree of depth processing system | |
| CN1418937A (en) | Method for indudstrialized refining liquefied petrolium gas (LPG) | |
| CN108117208A (en) | The processing method and processing unit of a kind of alkali residue waste liquid | |
| CN102040262B (en) | Electrolytic and catalytic oxidation reaction device and processing method based fluidized bed | |
| CN216426977U (en) | Continuous device for photocatalytic degradation of coal tar wastewater | |
| CN101962246A (en) | Method for treating and recycling MTO process wastewater | |
| CN111762969B (en) | Low-concentration degradation-resistant chemical wastewater treatment method and system | |
| CN206607132U (en) | A kind of processing system of waster water of alkaline residul from oil refinery | |
| CN202912756U (en) | Combined-unit type industrial wastewater treatment equipment by using catalytic ozone method | |
| CN207227223U (en) | A kind of processing of gasification of poor coal waste water and recycle device | |
| KR101915261B1 (en) | Method of producing energy in sewage and wastewater treatment facility including Carbon dioxide reduction tub | |
| CN1132641C (en) | Process for comprehensive treatment of acid and alkali dregs | |
| CN1644537A (en) | Polyether polyatomic alcohol producing sewage recovering and utilizing treatment | |
| CN209411877U (en) | Efficient anaerobic denitrification organisms reactor | |
| CN105776652B (en) | A kind of absorption-the membrane-separation water treatment device and method of excess sludge reinforcing | |
| CN208916980U (en) | A kind of pretreatment combination size device of semi-coke wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |