CN214990509U - High-efficient oxidation unit who removes ammonia nitrogen - Google Patents
High-efficient oxidation unit who removes ammonia nitrogen Download PDFInfo
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- CN214990509U CN214990509U CN202121178623.XU CN202121178623U CN214990509U CN 214990509 U CN214990509 U CN 214990509U CN 202121178623 U CN202121178623 U CN 202121178623U CN 214990509 U CN214990509 U CN 214990509U
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Abstract
The utility model discloses an oxidation device for efficiently removing ammonia nitrogen, which comprises a tank body (1), a circulating pump (2), a wastewater inlet (3), a high-flux micro mixer (4), a waste gas outlet (5) and a wastewater outlet (6); a wastewater spray head (7), a catalytic filler (8) and a water collecting tank (9) are arranged in the tank body (1); the high-flux micro mixer (4) is communicated with a wastewater inlet (3) and is used for introducing an oxidant and wastewater into a tank body (1) of the oxidation device; the waste water spray head (7) is arranged on the catalytic filler (8) and sprays the waste water mixed with the oxidant onto the catalytic filler (8); the oxidation device for removing ammonia nitrogen can rapidly complete the oxidation of ammonia nitrogen under the action of the oxidant and the catalytic filler, has ultrahigh treatment efficiency, and is widely suitable for enterprises such as fossil, chemical fertilizer, pharmacy and the like with large discharge amount of various ammonia nitrogen wastewater.
Description
Technical Field
The utility model relates to a waste water treatment field, concretely relates to high-efficient oxidation unit who removes ammonia nitrogen.
Background
The high-concentration ammonia nitrogen wastewater is one of industrial wastes which are difficult to treat, has wide sources and large discharge, and causes serious environmental pollution and high enterprise treatment cost.
CN104628225B discloses a method for treating ammonia nitrogen-containing industrial wastewater, which comprises the following steps: step 1) preparing a complex microbial inoculum, step 2) precipitating and removing impurities, step 3) adjusting pH value, step 4) preparing a carbon source, step 5) biologically oxidizing, and step 6) preparing feed protein. The method can effectively treat the ammonia nitrogen wastewater, has low cost and is suitable for industrial popularization and use.
CN101519232B discloses a method for reducing ammonia nitrogen pollution in industrial wastewater, which comprises the step of carrying out N (N is more than or equal to 3 and is an integer) times of contact exchange, preferably countercurrent contact exchange, more preferably multistage countercurrent ammonium ion exchange by a belt filter on a Na-type zeolite molecular sieve to be subjected to ammonium exchange modification and the industrial wastewater containing ammonia nitrogen and/or a fresh ammonium ion-containing solution. The method recovers ammonia nitrogen in the industrial wastewater containing ammonia nitrogen, so that the wastewater reaches the standard and is discharged, and meanwhile, the sodium content in the zeolite molecular sieve is reduced to the level required by the process by exchange, the process is simple, and the operation cost is low.
CN103288304A relates to a method for treating high ammonia nitrogen industrial wastewater. The invention aims to solve the problems that the consumption of Dissolved Oxygen (DO) is high, the carbon source of wastewater is insufficient, an additional carbon source is needed and the treatment cost is high in the conventional complete nitrification and denitrification. The invention is realized by the following steps: firstly, pretreating high ammonia nitrogen wastewater and then feeding the high ammonia nitrogen wastewater into a water inlet pool; secondly, the sewage enters an anoxic tank from a water inlet tank; thirdly, entering a micro-oxygen section from the anoxic tank; fourthly, entering an aerobic section from the micro-aerobic section; and fifthly, feeding the sewage into a secondary sedimentation tank from the aerobic section. The invention can be used in the field of high ammonia nitrogen industrial wastewater treatment engineering, in particular to synthetic ammonia wastewater treatment engineering.
With the development of chemical industry, the ammonia nitrogen of a plurality of industrial wastewater after treatment still exceeds the discharge standard. The traditional air stripping method has large air quantity and secondary pollution; the precipitation method adopts phosphorus and magnesium salt, so the cost is high; biotechnology has complex operation and can be operated only by long-term culture and stable water quality; the adsorption method has the problem of saturated regeneration, and the filler needs to be replaced. The common breakpoint chlorine addition has low reaction efficiency.
Disclosure of Invention
The utility model provides a high-efficient oxidation unit who removes ammonia nitrogen to the problem and the actual demand that prior art exists.
The utility model relates to an oxidation device for efficiently removing ammonia nitrogen, which comprises a tank body, a circulating pump, a wastewater inlet, a high-flux micro mixer, a waste gas outlet and a wastewater outlet; a wastewater spray head, a catalytic filler and a water collecting tank are arranged in the tank body; the high-flux micro mixer is communicated with a wastewater inlet, and an oxidant and wastewater enter a tank body of the oxidation device together; the waste water spray head is arranged on the catalytic filler, and the waste water mixed with the oxidant is sprayed on the catalytic filler; the water collecting tank is arranged below the catalytic filler and is used for collecting the wastewater flowing down from the catalytic filler; the circulating pump pumps the wastewater in the water collecting tank into the wastewater inlet through a pipeline and then enters the tank body of the oxidation device again; the waste gas generated by treatment is discharged through a waste gas outlet arranged at the top of the tank body, and the completely treated waste water is discharged out of the tank body through a waste water outlet.
The high-flux micro mixer comprises a pipeline 12, a cavity 10 and a mixing cavity 11, wherein the mixing cavity is positioned above the pipeline 12 and the cavity 10 and is connected with the pipeline 12 and the cavity 10, different fluids respectively enter the pipeline 12 and the cavity 10 and then enter the mixing part 11 for mixing.
The inner diameter of the pipeline is 25-100 mu m, and the height of the pipeline is 5-15cm;
the number of the pipelines is 10-100.
The diameter difference of the cavities is 25-100 mu m. The inner diameter is 10-100cm, and the height is 5-15cm;
the mixing cavity is rectangular, the length of the mixing cavity is 45-250cm, the width of the mixing cavity is 25-150cm, and the height of the mixing cavity is 10-20cm;
the inlet of the high-flux micro-mixer is positioned at the lower side of the high-flux micro-mixer, is respectively connected with the pipeline and the cavity, and has a distance of 1.5-3cm from the bottom surface;
the lower edges of the pipeline, the cavity and the mixing cavity are positioned on the same plane.
The waste gas outlet is connected with a waste gas treatment system through a pipeline.
The oxidant is sodium hypochlorite solution or chlorine solution.
The catalytic filler is solid porous filler.
The utility model has the advantages that:
1. the oxidation device for removing ammonia nitrogen has the advantages of simple structure, low equipment investment cost, simple maintenance and low equipment failure rate.
2. The oxidation device for removing ammonia nitrogen can rapidly complete the oxidation of ammonia nitrogen under the action of the oxidant and the catalytic filler, has ultrahigh treatment efficiency, and is widely suitable for enterprises such as fossil, chemical fertilizer, pharmacy and the like with large discharge amount of various ammonia nitrogen wastewater.
3. The oxidation device for removing ammonia nitrogen has high flexibility of use conditions, does not have high requirements on the water quality of wastewater, can improve the utilization efficiency of the oxidant by the built-in catalytic oxidation filler, and has the advantages of low investment and quick response.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. the device comprises a tank body, 2, a circulating pump, 3, a wastewater inlet, 4, a high-flux micro-mixer, 5, a waste gas outlet, 6, a wastewater outlet, 7, a wastewater spray head, 8, catalytic filler, 9 and a water collecting tank.
FIG. 2 is a schematic structural diagram of a high-throughput micromixer;
in the figure: 11. mixing part, 12, pipe, 10, cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The wastewater flow rate was 1.0m3The ammonia nitrogen concentration is 400mg/L, the high-flux micro mixer is communicated with a wastewater inlet, and an oxidant sodium hypochlorite solution and wastewater enter a tank body of the oxidation device together; the waste water spray head sprays the waste water mixed with the oxidant onto the catalytic filler; the water collecting tank is arranged below the catalytic filler and is used for collecting the wastewater flowing down from the catalytic filler; the circulating pump pumps the wastewater in the water collecting tank into the wastewater inlet through a pipeline and then enters the tank body of the oxidation device again; the waste gas generated by treatment is discharged through a waste gas outlet arranged at the top of the tank body, and the completely treated waste water is discharged out of the tank body through a waste water outlet.
The high-flux micro mixer comprises a pipeline 12, a cavity 10 and a mixing cavity 11, wherein the mixing cavity is positioned above the pipeline 12 and the cavity 10 and is connected with the pipeline 12 and the cavity 10, different fluids respectively enter the pipeline 12 and the cavity 10 and then enter the mixing part 11 for mixing.
The inner diameter of the pipeline is 25 micrometers, and the height of the pipeline is 5cm;
the number of the pipelines is 10.
The difference in cavity diameters was 25 μm. The inner diameter is 10cm and the height is 5cm;
the mixing cavity is rectangular, the length of the mixing cavity is 45cm, the width of the mixing cavity is 25cm, and the height of the mixing cavity is 10cm;
the detection of the ammonia nitrogen concentration of the effluent water is 5.2 mg/L, nitrite is not detected in the wastewater, and no malodorous gas is generated.
Example 2
The wastewater flow rate was 1.0m3The ammonia nitrogen concentration is 360mg/L, the high-flux micro mixer is communicated with a wastewater inlet, and oxidant hypochlorous gas solution and wastewater enter a tank body of the oxidation device together; the waste water spray head sprays the waste water mixed with the oxidant onto the catalytic filler; the water collecting tank is arranged below the catalytic filler and is used for collecting the wastewater flowing down from the catalytic filler; the circulating pump pumps the wastewater in the water collecting tank into the wastewater inlet through a pipeline and then enters the tank body of the oxidation device again; the waste gas generated by treatment is discharged through a waste gas outlet arranged at the top of the tank body, and the completely treated waste water is discharged out of the tank body through a waste water outlet.
The high-flux micro mixer comprises a pipeline 12, a cavity 10 and a mixing cavity 11, wherein the mixing cavity is positioned above the pipeline 12 and the cavity 10 and is connected with the pipeline 12 and the cavity 10, different fluids respectively enter the pipeline 12 and the cavity 10 and then enter the mixing part 11 for mixing.
The inner diameter of the pipeline is 100 micrometers, and the height of the pipeline is 15cm;
the number of the pipelines is 100.
The difference in cavity diameters was 100 μm. Inner diameter of 100cm and height of 15cm;
the mixing cavity is rectangular, the length of the mixing cavity is 250cm, the width of the mixing cavity is 150cm, and the height of the mixing cavity is 20cm;
the detection of the ammonia nitrogen concentration of the effluent water is 3.4 mg/L, nitrite is not detected in the wastewater, and no malodorous gas is generated.
Example 3
The wastewater flow rate was 1.0m3The ammonia nitrogen concentration is 380mg/L, the high-flux micro mixer is communicated with a wastewater inlet, and an oxidant sodium hypochlorite solution and wastewater enter a tank body of the oxidation device together; the waste water spray head sprays the waste water mixed with the oxidant onto the catalytic filler; the water collecting tank is arranged below the catalytic filler and is used for collecting the wastewater flowing down from the catalytic filler; the circulating pump pumps the wastewater in the water collecting tank into the wastewater inlet through a pipeline and then enters the tank body of the oxidation device again; the waste gas generated by treatment is arranged inThe waste gas outlet at the top of the tank body is used for discharging, and the completely treated waste water is discharged out of the tank body through the waste water outlet.
The high-flux micro mixer comprises a pipeline 12, a cavity 10 and a mixing cavity 11, wherein the mixing cavity is positioned above the pipeline 12 and the cavity 10 and is connected with the pipeline 12 and the cavity 10, different fluids respectively enter the pipeline 12 and the cavity 10 and then enter the mixing part 11 for mixing.
The inner diameter of the pipeline is 50 micrometers, and the height of the pipeline is 10cm;
the number of the pipelines is 50.
The difference in cavity diameters was 60 μm. An inner diameter of 30cm and a height of 10cm;
the mixing cavity is rectangular, the length of the mixing cavity is 220cm, the width of the mixing cavity is 120cm, and the height of the mixing cavity is 15cm;
the utility model discloses an oxidation unit of high-efficient removal ammonia nitrogen for the high-efficient denitrogenation reactor of CADNR that the applicant developed.
The detection of the ammonia nitrogen concentration of the effluent water is 4.6 mg/L, nitrite is not detected in the wastewater, and no malodorous gas is generated.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. An oxidation device for efficiently removing ammonia nitrogen comprises a tank body (1), a circulating pump (2), a wastewater inlet (3), a high-flux micro mixer (4), a waste gas outlet (5) and a wastewater outlet (6); a wastewater spray head (7), a catalytic filler (8) and a water collecting tank (9) are arranged in the tank body (1); the high-flux micro mixer (4) is communicated with a wastewater inlet (3) and is used for introducing an oxidant and wastewater into a tank body (1) of the oxidation device; the waste water spray head (7) is arranged on the catalytic filler (8) and sprays the waste water mixed with the oxidant onto the catalytic filler (8); the water collecting tank (9) is arranged below the catalytic filler (8) and is used for collecting the wastewater flowing down from the catalytic filler (8); the circulating pump (2) pumps the wastewater in the water collecting tank (9) into the wastewater inlet (3) through a pipeline and then enters the tank body (1) of the oxidation device again; the waste gas generated by treatment is discharged through a waste gas outlet (5) arranged at the top of the tank body (1), and the completely treated waste water is discharged out of the tank body (1) through a waste water outlet (6).
2. The oxidation device for efficiently removing ammonia nitrogen according to claim 1, which is characterized in that: the waste gas outlet (5) is connected with a waste gas treatment system through a pipeline.
3. The oxidation device for efficiently removing ammonia nitrogen according to claim 1, which is characterized in that: the oxidant is sodium hypochlorite solution or chlorine solution.
4. The oxidation device for efficiently removing ammonia nitrogen according to claim 1, which is characterized in that: the catalytic filler (8) is solid porous filler.
5. The oxidation device for efficiently removing ammonia nitrogen according to claim 1, which is characterized in that: the high-flux micro mixer comprises a pipeline (12), a cavity (10) and a mixing cavity (11), wherein the mixing cavity (11) is positioned on the pipeline (12), the upper part of the cavity (10) is connected with the pipeline (12) and the cavity (10), different fluids respectively enter the pipeline (12) and the cavity (10) and then enter the mixing cavity (11) for mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121178623.XU CN214990509U (en) | 2021-05-29 | 2021-05-29 | High-efficient oxidation unit who removes ammonia nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121178623.XU CN214990509U (en) | 2021-05-29 | 2021-05-29 | High-efficient oxidation unit who removes ammonia nitrogen |
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| Publication Number | Publication Date |
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| CN214990509U true CN214990509U (en) | 2021-12-03 |
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| CN202121178623.XU Active CN214990509U (en) | 2021-05-29 | 2021-05-29 | High-efficient oxidation unit who removes ammonia nitrogen |
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- 2021-05-29 CN CN202121178623.XU patent/CN214990509U/en active Active
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