CN210974083U - Advanced denitrification treatment system for wastewater - Google Patents
Advanced denitrification treatment system for wastewater Download PDFInfo
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- CN210974083U CN210974083U CN201921971809.3U CN201921971809U CN210974083U CN 210974083 U CN210974083 U CN 210974083U CN 201921971809 U CN201921971809 U CN 201921971809U CN 210974083 U CN210974083 U CN 210974083U
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Abstract
The utility model discloses a waste water degree of depth denitrogenation processing system, including inlet channel and on-line measuring device A, there is the biochemical pond of oxygen deficiency output of inlet channel through the pipe connection, and the output in the biochemical pond of oxygen deficiency has good oxygen biochemical pond through the pipe connection, the output in good oxygen biochemical pond has two heavy ponds through the pipe connection, and the output in two heavy ponds has the denitrification biological filter through the pipe connection, denitrification biological filter internally mounted has on-line measuring device C, and on-line measuring device C, on-line measuring device A and on-line measuring device B's end all is connected with central control system. The utility model discloses throw with feeder apparatus A and B throw the throwing of high concentration organic waste water in oxygen deficiency biochemical pond and denitrification biological filter and throw with the point, set up three in the plug flow direction of edge waste water, realize that "throw as required of carbon source in the course of the technology and" scientific regulation and control ", promoted the utilization efficiency of denitrification carbon source by a wide margin.
Description
Technical Field
The utility model relates to a waste water treatment device technical field specifically is a waste water degree of depth denitrogenation processing system.
Background
The nitrogen element is used as an important element causing water eutrophication, and the total nitrogen index in the wastewater is strictly limited by the discharge standard of each level of wastewater and shows a gradually tightening trend. At present, the method for removing total nitrogen in wastewater mainly comprises several methods such as an oxidation method, an adsorption method, a gas stripping method, a membrane filtration method, a biological method and the like, wherein the biological denitrification method is widely applied due to the obvious technical advantages of low treatment cost, no secondary pollution and the like, and becomes a mainstream treatment process for denitrification of wastewater at home and abroad at present. In the biological denitrification treatment process of wastewater, a large amount of easily degradable organic matters (such as methanol, sodium acetate, glucose and the like) are usually required to be added as a denitrification carbon source, so that the operation cost of the biological denitrification process is greatly increased. Meanwhile, in the production process of the industries such as food, fermentation, catering, coal chemical industry and the like, a large amount of high-concentration organic wastewater can be generated, such as starch wastewater, soybean protein wastewater, alcohol wastewater, acetic acid wastewater, acetic anhydride wastewater, methanol wastewater, kitchen wastewater and the like, and the wastewater consumes a large amount of energy in the treatment process and can generate a large amount of sludge and malodorous gas to cause secondary pollution. How to properly treat and dispose high-concentration organic wastewater becomes a common demand in the industry of generating high-concentration organic wastewater.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wastewater deep denitrification processing system to solve the problem of how to properly handle and deal with high concentration organic waste water that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a waste water degree of depth denitrogenation processing system, includes inlet channel and on-line measuring device A, the output of inlet channel has the biochemical pond of oxygen deficiency through the pipe connection, and the output in the biochemical pond of oxygen deficiency has the biochemical pond of good oxygen through the pipe connection, the output in the biochemical pond of good oxygen has two heavy ponds through the pipe connection, and the output in two heavy ponds has the denitrification biological filter through the pipe connection, the output in denitrification biological filter has the drainage pond through the pipe connection, the end of the biochemical pond of good oxygen nitrifies the liquid reflux unit and two mud reflux units that sink the bottom of the pond and be connected with the front end in the biochemical pond of oxygen deficiency respectively, the biochemical pond of oxygen deficiency links to each other between adding device A and the organic waste water storage tank through the measurement and communicates with each other between adding device B and the denitrification biological filter through the measurement, on-line measuring device A, the aerobic biochemical tank is internally provided with an online detection device B, the denitrification biological filter is internally provided with an online detection device C, and the tail ends of the online detection device C, the online detection device A and the online detection device B are all connected with a central control system.
Preferably, the inside of oxygen deficiency biochemical pond is provided with dive agitator, and measures throwing device A and is provided with three in the inside of oxygen deficiency biochemical pond.
Preferably, the aeration mode of the aerobic biochemical tank adopts a micropore aerator, a rotary mixing aerator or a jet aerator.
Preferably, the filter material of the denitrification biological filter adopts ceramsite, activated carbon filter material, volcanic rock filter material or soft goose stone filter material.
Preferably, the online detection device A, the online detection device B and the online detection device C respectively comprise a dissolved oxygen, temperature, pH, ammonia nitrogen and total nitrogen detection module.
Preferably, the central control system is electrically connected with the on-line detection device C, the on-line detection device A and the on-line detection device B through leads, and the metering and feeding device A and the metering and feeding device B are electrically connected with the central control system through leads.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model combines the two-stage biological denitrification process of 'activated sludge' denitrification and 'biomembrane' denitrification in series, thereby greatly improving the denitrification efficiency of the system and the stability of the standard operation of the total nitrogen;
the on-line detection devices arranged in the anoxic biochemical tank, the aerobic biochemical tank and the denitrification biological filter are used for feeding operation parameters of the tanks back to the central control system in time, and the central control system transmits control instructions to the metering and adding device in time through data analysis, so that scientific and stable adding of organic wastewater is adjusted, and automatic control operation of the system is realized;
the metering and feeding device A and the metering and feeding device B feed feeding points of high-concentration organic wastewater in the anoxic biochemical tank and the denitrification biological filter, and are arranged at three positions along the plug flow direction of the wastewater, so that the 'feeding as required' and 'scientific regulation and control' of a carbon source in the process are realized, and the utilization efficiency of a denitrification carbon source is greatly improved.
Drawings
Fig. 1 is a schematic view of the work flow of the present invention.
In the figure: 1. a water inlet channel; 2. an anoxic biochemical tank; 3. an aerobic biochemical tank; 4. a secondary sedimentation tank; 5. a denitrification biological filter; 6. a drainage basin; 7. a nitrifying liquid reflux device; 8. a sludge reflux device; 9. an organic wastewater storage tank; 10. a metering and feeding device A; 11. a metering and feeding device B; 12. a central control system; 13. an online detection device A; 14. an online detection device B; 15. and (4) an online detection device C.
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.
Referring to fig. 1, the present invention provides a technical solution: a wastewater deep denitrification treatment system comprises a water inlet channel 1, an anoxic biochemical tank 2, an aerobic biochemical tank 3, a secondary sedimentation tank 4, a denitrification biological filter 5, a water drainage tank 6, a nitrifying liquid reflux device 7, a sludge reflux device 8, an organic wastewater storage tank 9, a metering and feeding device A10, a metering and feeding device B11, a central control system 12, an online detection device A13, an online detection device B14 and an online detection device C15, wherein the output end of the water inlet channel 1 is connected with the anoxic biochemical tank 2 through a pipeline, the output end of the anoxic biochemical tank 2 is connected with the aerobic biochemical tank 3 through a pipeline, a submersible stirrer is arranged inside the anoxic biochemical tank 2, three metering and feeding devices A10 are arranged inside the anoxic biochemical tank 2, the aerobic biochemical tank 3 adopts a microporous aerator, a rotary mixing aerator or a jet aerator in an aeration mode, the output end of the aerobic biochemical tank 3 is connected with the secondary sedimentation tank 4 through a pipeline, the output end of the secondary sedimentation tank 4 is connected with a denitrification biological filter 5 through a pipeline, the filter material of the denitrification biological filter 5 adopts ceramsite, activated carbon filter material, volcanic filter material or soft goose stone filter material, and the denitrification efficiency of the system is greatly improved and the stability of the standard operation of the total nitrogen is improved by serially combining the two-stage biological denitrification process of 'activated sludge' denitrification and 'biomembrane' denitrification;
the output end of the denitrification biological filter 5 is connected with a drainage tank 6 through a pipeline, a nitrifying liquid reflux device 7 at the tail end of the aerobic biochemical pool 3 and a sludge reflux device 8 at the bottom of the secondary sedimentation pool 4 are respectively connected with the front end of the anoxic biochemical pool 2, the anoxic biochemical pool 2 is communicated with an organic wastewater storage tank 9 through a metering and adding device A10, the organic wastewater storage tank 9 is communicated with the denitrification biological filter 5 through a metering and adding device B11, the metering and adding device A10 and the metering and adding device B11 are used for adding high-concentration organic wastewater adding points in the anoxic biochemical pool 2 and the denitrification biological filter 5, 3 points are arranged along the plug flow direction of wastewater, so that 'adding according to needs' and 'scientific regulation and control' of a carbon source in the process are realized, and the utilization efficiency of a denitrification carbon source is greatly improved;
an online detection device A13 is installed inside the anoxic biochemical tank 2, an online detection device B14 is installed inside the aerobic biochemical tank 3, an online detection device C15 is installed inside the denitrification biological filter 5, the tail ends of the online detection device C15, the online detection device A13 and the online detection device B14 are all connected with a central control system 12, the online detection device A13, the online detection device B14 and the online detection device C15 all comprise dissolved oxygen, temperature, pH, ammonia nitrogen and total nitrogen detection modules, the central control system 12 is electrically connected with the online detection device C15, the online detection device A13 and the online detection device B14 through leads, the metering and adding device A10 and the metering and adding device B11 are electrically connected with the central control system 12 through leads, and by the online detection devices arranged in the anoxic biochemical tank 2, the aerobic biochemical tank 3 and the denitrification biological filter 5, the operation parameters of each pool are fed back to the central control system 12 in time, and the central control system 12 transmits control instructions to the metering and adding device in time through data analysis, so that scientific and stable adding of the organic wastewater is adjusted, and automatic control operation of the system is realized.
The working principle is as follows: the utility model discloses during the use, nitrogenous waste water flows into oxygen deficiency biochemical pool 2 through inlet channel 1 at first, under the stirring of dive agitator, with nitrify the liquid of liquid reflux unit 7 backward flow, the mud of mud reflux unit 8 backward flow and measure throwing the feeder apparatus and throw the high concentration organic waste water intensive mixing, realize biological denitrification under the effect of denitrifying bacteria, thereby change the nitrate into nitrogen gas and realize the removal of total nitrogen, the online detection device A13 of installation in the oxygen deficiency biochemical pool 2 gathers parameters in the pool in real time and transmits for central control system 12; the effluent of the anaerobic biochemical tank 2 enters an aerobic biochemical tank 3, aerobic biochemical treatment is carried out under the aeration condition, the nitrification of ammonia nitrogen and the conversion and removal of other pollutants are realized, a nitrified liquid reflux device 7 at the tail end of the aerobic biochemical tank 3 refluxes nitrified liquid containing nitrate to the anaerobic biochemical tank 2, and an online detection device B14 arranged in the aerobic biochemical tank 3 collects parameters in the tank in real time and transmits the parameters to a central control system 12; the effluent of the aerobic tank enters a secondary sedimentation tank 4 for mud-water separation, and the sludge precipitated at the bottom flows back to the anoxic biochemical tank 2 through a sludge reflux device 8; the effluent of the secondary sedimentation tank 4 enters a denitrification biological filter 5, after being fully mixed with high-concentration organic wastewater added by a metering and adding device B11, a deep denitrification function is generated in the filter, the total nitrogen in the wastewater is further removed, finally the solution is discharged through a drainage tank 6, an online detection device C15 arranged in the denitrification biological filter 5 collects parameters in the filter in real time and transmits the parameters to a central control system 12, and the effluent of the denitrification biological filter 5 is discharged after reaching the standard; after the central control system 12 analyzes the collected data fed back by the on-line detection device A13, the on-line detection device B14 and the on-line detection device C15, a parameter adjusting instruction is transmitted to the metering and adding device A10 and the metering and adding device B11 so as to adjust and optimize the process operation parameters in time, the stable standard-reaching treatment of the system is realized, and the arranged organic wastewater storage tank 9 can store the organic wastewater, so that the treatment process of the organic wastewater is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a waste water degree of depth denitrogenation processing system, includes inlet channel (1) and on-line measuring device A (13), its characterized in that: the output end of the water inlet channel (1) is connected with an anoxic biochemical tank (2) through a pipeline, the output end of the anoxic biochemical tank (2) is connected with an aerobic biochemical tank (3) through a pipeline, the output end of the aerobic biochemical tank (3) is connected with a secondary sedimentation tank (4) through a pipeline, the output end of the secondary sedimentation tank (4) is connected with a denitrification biological filter tank (5) through a pipeline, the output end of the denitrification biological filter tank (5) is connected with a drainage tank (6) through a pipeline, a nitrified liquid reflux device (7) at the tail end of the aerobic biochemical tank (3) and a sludge reflux device (8) at the bottom of the secondary sedimentation tank (4) are respectively connected with the front end of the anoxic biochemical tank (2), the anoxic biochemical tank (2) is communicated with an organic wastewater storage tank (9) through a metering and feeding device A (10), and the organic wastewater storage tank (9) is communicated with the denitrification biological filter tank (5) through a metering and feeding device B (11, the on-line measuring device A (13) is installed in the interior of the anoxic biochemical pool (2), the aerobic biochemical pool (3) is internally provided with an on-line measuring device B (14), the denitrification biological filter (5) is internally provided with an on-line measuring device C (15), and the tail ends of the on-line measuring device C (15), the on-line measuring device A (13) and the on-line measuring device B (14) are all connected with a central control system (12).
2. The advanced wastewater denitrification treatment system according to claim 1, wherein: the inside of oxygen deficiency biochemical pond (2) is provided with dive agitator, and measures and adds feeder apparatus A (10) and is provided with threely in the inside of oxygen deficiency biochemical pond (2).
3. The advanced wastewater denitrification treatment system according to claim 1, wherein: the aeration mode of the aerobic biochemical tank (3) adopts a micropore aerator, a rotary mixing aerator or a jet aerator.
4. The advanced wastewater denitrification treatment system according to claim 1, wherein: the filter material of the denitrification biological filter (5) adopts ceramsite, active carbon filter material, volcanic rock filter material or soft goose stone filter material.
5. The advanced wastewater denitrification treatment system according to claim 1, wherein: and the online detection device A (13), the online detection device B (14) and the online detection device C (15) comprise dissolved oxygen, temperature, pH, ammonia nitrogen and total nitrogen detection modules.
6. The advanced wastewater denitrification treatment system according to claim 1, wherein: the central control system (12) is electrically connected with the on-line detection device C (15), the on-line detection device A (13) and the on-line detection device B (14) through leads, and the metering and feeding device A (10) and the metering and feeding device B (11) are electrically connected with the central control system (12) through leads.
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| CN201921971809.3U CN210974083U (en) | 2019-11-15 | 2019-11-15 | Advanced denitrification treatment system for wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112225310A (en) * | 2020-09-28 | 2021-01-15 | 中国市政工程华北设计研究总院有限公司 | Water-feeding dissolved oxygen full-flow control system and operation control method for denitrification filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225310A (en) * | 2020-09-28 | 2021-01-15 | 中国市政工程华北设计研究总院有限公司 | Water-feeding dissolved oxygen full-flow control system and operation control method for denitrification filter |
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