CN219709265U - Autotrophic denitrification filter tank high-efficiency nitrogen-driving device - Google Patents
Autotrophic denitrification filter tank high-efficiency nitrogen-driving device Download PDFInfo
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- CN219709265U CN219709265U CN202320818153.1U CN202320818153U CN219709265U CN 219709265 U CN219709265 U CN 219709265U CN 202320818153 U CN202320818153 U CN 202320818153U CN 219709265 U CN219709265 U CN 219709265U
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- autotrophic denitrification
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- 230000001651 autotrophic effect Effects 0.000 title claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 25
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 20
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 abstract description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 108010061951 Methemoglobin Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides a high-efficiency nitrogen-driving device of an autotrophic denitrification filter, which comprises a filter and a PLC (programmable logic controller), wherein a liquid level meter is arranged in an inner cavity of the filter, a water inlet pipe, a backwash water outlet pipe and a water outlet pipe are respectively communicated with the outer side of the filter, a backwash water inlet pipe is respectively communicated with the outer side of the water outlet pipe, one end of the water inlet pipe is communicated with a detection pipe, a protective shell and an electromagnetic flowmeter are respectively arranged on the outer side of the detection pipe, a fixing mechanism is arranged on the outer side of the protective shell, a nitrate content monitor is arranged on the outer side of the water inlet pipe, and the fixing mechanism comprises a first fixing hoop and a second fixing hoop. The high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model solves the problems that the existing common practice is adopted to manually set the nitrogen release period, the nitrogen release is not thorough, the operation cost is increased and the like.
Description
Technical Field
The utility model relates to the field of water treatment, in particular to a high-efficiency nitrogen-driving device of an autotrophic denitrification filter.
Background
Water resources are important resources for human survival, but with the tremendous growth of population and rapid economic development in recent years, particularly the massive use of pesticides and fertilizers in agricultural production and the disordered discharge of domestic sewage and industrial wastewater, a large amount of nitrate enters the ground surface and underground water body to cause the common existence and aggravation trend of nitrate pollution in water. The water polluted by nitrate is easy to cause methemoglobin diseases, blue infant diseases and the like after long-term drinking, the conversion products of the water have three risks, and the nitrate pollution of surface water can cause eutrophication of water body, worsen water quality and ecological environment, and the treatment of the nitrate pollution in water is indistinct.
In order to control the nitrate content of the water body and ensure the health of the water environment, the nitrate content in the water body is strictly regulated in all countries of the world, and the autotrophic denitrification filter is a novel fixed bed down-flow type biomembrane reactor and is mainly used for limiting removal of TN indexes by utilizing the autotrophic denitrification effect of microorganisms. Autotrophic denitrification means autotrophic denitrifying bacteria (certain autotrophic microorganisms) utilize inorganic carbon (CO 2, HCO3-, CO 32-) as a carbon source, mainly take inorganic matters (S, S-, H2, S2O32-, fe, fe2+, NH4+ and the like) as electron donors for nitrate nitrogen reduction to complete microbial metabolism, reduce NO 3-N in water polluted by nitrate nitrogen into N2 and release the N2 into the atmosphere, and finally realize TN removal.
In the actual use process, along with the denitrification in the autotrophic denitrification filter, nitrate in sewage is denitrified to generate nitrogen under the action of microorganisms, the nitrogen is gradually accumulated in a filter layer, the gap of water passing through the filter layer after filtration is reduced, the head loss of the filter is increased, currently, aiming at the increase of the filter head caused by nitrogen accumulation, the manual setting of a nitrogen release period is generally adopted, the head loss in the operation of the filter is reduced by using independent water recoil to release the accumulated gas in the filter layer, the filtering speed of the filter is ensured, the manual setting of the nitrogen release period is adopted by experience, the defects of incomplete nitrogen release, increased operation cost and the like are easily caused, and therefore, the research and development of the high-efficiency nitrogen-driving device of the autotrophic denitrification filter has important significance for the efficient, stable and safe operation of the autotrophic denitrification filter and the reduction of the operation cost.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the high-efficiency nitrogen-driving device of the autotrophic denitrification filter, which can automatically obtain the nitrogen release period.
The utility model provides an efficient nitrogen-driving device for an autotrophic denitrification filter, which comprises a filter and a PLC (programmable logic controller), wherein a liquid level meter is arranged in an inner cavity of the filter, a water inlet pipe, a backwash water outlet pipe and a water outlet pipe are respectively communicated with the outer side of the filter, a backwash water inlet pipe is respectively communicated with the outer side of the water outlet pipe, one end of the water inlet pipe is communicated with a detection pipe, a protective shell and an electromagnetic flowmeter are respectively arranged on the outer side of the detection pipe, a fixing mechanism is arranged on the outer side of the protective shell, and a nitrate content monitor is arranged on the outer side of the water inlet pipe.
As the high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model, preferably, the fixing mechanism comprises the first fixing hoop and the second fixing hoop, the first fixing hoop and the second fixing hoop are both positioned at the outer side of the detection tube, the outer sides of the first fixing hoop and the second fixing hoop are fixedly connected with the fixing block, and the inner cavity of the fixing block is in threaded connection with the fixing bolt.
As the high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model, preferably, the outer sides of the first fixing hoop and the second fixing hoop are fixedly connected with the fixing rods, the top of each fixing rod is fixedly connected with the fixing plate, the inner cavity of each fixing plate is in threaded connection with the compression bolt, and the bottom of each compression bolt is fixedly connected with the pressing plate.
As the high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model, preferably, the bottom of the pressing plate is fixedly connected with a rubber pad.
As the high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model, preferably, one side of the protective shell is fixedly connected with the limit sleeve.
As the high-efficiency nitrogen-driving device for the autotrophic denitrification filter provided by the utility model, preferably, one end of the limiting sleeve is fixedly connected with the connecting rod, and one end of the connecting rod is fixedly connected with the limiting ring.
Compared with the prior art, the utility model has the beneficial effects that:
according to the autotrophic denitrification filter high-efficiency nitrogen-driving device, the water inflow and the nitrate amount can be monitored through the cooperation of the electromagnetic flowmeter and the nitrate content monitor, then the nitrogen release period is automatically obtained through the PID algorithm of the PLC, the nitrogen release period and the liquid level trend of the filter are combined to control the operation of an external nitrogen-driving water pump, the nitrogen accumulated in the filter layer of the filter is released, the head loss in the operation of the filter is reduced, the filter speed of the filter is ensured, and the problems that the nitrogen release period is manually set by adopting experience at present, the nitrogen release is incomplete and the operation cost is increased easily are solved.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of a nitrogen-expelling device for an autotrophic denitrification filter according to the present utility model;
FIG. 2 is a side elevational view in cross-section of the protective case of the present utility model;
fig. 3 is a schematic structural view of the protective case of the present utility model.
Reference numerals in the drawings: 1. a filter tank; 2. a PLC controller; 3. a liquid level gauge; 4. a water inlet pipe; 5. a nitrate content monitor; 6. a detection tube; 7. a protective shell; 8. a fixing mechanism; 801. a first securing strap; 802. a second securing strap; 803. a fixed block; 804. a fixing bolt; 805. a fixed rod; 806. a fixing plate; 807. a compression bolt; 808. a pressing plate; 9. an electromagnetic flowmeter; 10. backwashing the drain pipe; 11. a water outlet pipe; 12. backwashing the water inlet pipe; 13. a rubber pad; 14. a limit sleeve; 15. a connecting rod; 16. and a limiting ring.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a high-efficiency nitrogen-driving device for an autotrophic denitrification filter according to the present utility model; FIG. 2 is a side elevational view in cross-section of the protective case of the present utility model; fig. 3 is a schematic structural view of the protective case of the present utility model. The utility model provides an autotrophic denitrification filtering pond high-efficient nitrogen device, including filtering pond 1 and PLC controller 2, the inner chamber of filtering pond 1 is provided with level gauge 3, the outside of filtering pond 1 communicates respectively has water inlet pipe 4, backwash drain pipe 10 and outlet pipe 11, the outside intercommunication of outlet pipe 11 has backwash inlet tube 12, the one end intercommunication of water inlet pipe 4 has detection tube 6, the outside of detection tube 6 is provided with protective housing 7 and electromagnetic flowmeter 9 respectively, the outside of protective housing 7 is provided with fixed establishment 8, the outside of water inlet pipe 4 is provided with nitrate content monitor 5;
one side of the protective shell 7 is fixedly connected with a limit sleeve 14;
one end of the limiting sleeve 14 is fixedly connected with a connecting rod 15, and one end of the connecting rod 15 is fixedly connected with a limiting ring 16.
It should be noted that: the utility model discloses a nitrogen gas release cycle of this device filtering pond 1, the quantity of passing through the line hole has been seted up to one side of protective housing 7, the quantity of passing through the line hole is the same with the quantity of stop collar 14, through setting up stop collar 14, connecting rod 15 and stop collar 16, can improve the stability of wire in the use of switch-in electromagnetic flowmeter 9 department, the outside of protective housing 7 is provided with the transparent plate, the user observes electromagnetic flowmeter 9 conveniently, before using this device, should be connected electromagnetic flowmeter 9 and nitrate content monitor 5 with PLC controller 2 electricity, nitrogen gas release cycle of this device filtering pond 1 accessible electromagnetic flowmeter 9 and nitrate content monitor 5 cooperation monitor inflow water flow and nitrate volume, then obtain nitrogen gas release cycle automatically through the PID algorithm of PLC controller 2, nitrogen gas release cycle and filtering pond 1 liquid level trend joint control outside nitrogen driving water pump operation, the nitrogen gas of releasing in the filtering pond 1 filter layer accumulation, reduce the head loss in the operation of filtering pond 1, ensure filtering speed of filtering pond 1, the current generally adopts experience to set for the time, easily lead to nitrogen gas release not thoroughly and running cost increases scheduling problem.
In a specific implementation process, as shown in fig. 1 and 2, the fixing mechanism 8 includes a first fixing hoop 801 and a second fixing hoop 802, the first fixing hoop 801 and the second fixing hoop 802 are both located at the outer side of the detection tube 6, a fixing block 803 is fixedly connected to the outer sides of the first fixing hoop 801 and the second fixing hoop 802, and a fixing bolt 804 is connected to an inner cavity of the fixing block 803 in a threaded manner;
the outer sides of the first fixing hoop 801 and the second fixing hoop 802 are fixedly connected with a fixing rod 805, the top of the fixing rod 805 is fixedly connected with a fixing plate 806, an inner cavity of the fixing plate 806 is in threaded connection with a compression bolt 807, and the bottom of the compression bolt 807 is fixedly connected with a pressing plate 808;
the bottom of the pressing plate 808 is fixedly connected with a rubber pad 13.
It should be noted that: in order to reduce the influence of external environmental factors on the electromagnetic flowmeter 9, after the electromagnetic flowmeter 9 is installed at the detecting tube 6 by a user, the protective shell 7 can be clamped at the outer side of the detecting tube 6, the protective shell 7 is used for providing a protection effect on the electromagnetic flowmeter 9, the influence of the external environmental factors on the electromagnetic flowmeter 9 is reduced, the service life of the electromagnetic flowmeter 9 is prolonged, after the protective shell 7 is clamped at the outer side of the detecting tube 6, the fixing rod 805 can be attached to the protective shell 7 by the user, then the fixing bolt 804 passes through the fixing blocks 803 below the first fixing hoop 801 and the second fixing hoop 802, nuts are twisted into the fixing bolt 804, so that the first fixing hoop 801 and the second fixing hoop 802 are fixed at the outer side of the detecting tube 6, the fixing rod 805 is fixed at the outer side of the protective shell 7, then the pressing bolt 807 can be rotated, the pressing plate 808 is driven to move downwards to be in contact with the top of the protective shell 7 by the pressing bolt 807, the pressing plate 808 is further fixed, the protective shell 7 is further, the stability of the protective shell 7 in the use process is improved, the friction effect between the bottom of the pressing plate 808 and the protective shell 7 is improved by arranging the rubber pad 13, and the fixing force of the pressing plate 808 is improved.
The utility model provides an efficient nitrogen-driving device for an autotrophic denitrification filter, which has the following working principle:
the nitrogen release period of the filter tank 1 of the device can be matched with the nitrate content monitor 5 to monitor the inflow water flow and the nitrate content, then the nitrogen release period is automatically obtained through the PID algorithm of the PLC controller 2, the nitrogen release period and the liquid level trend of the filter tank 1 are combined to control the operation of an external nitrogen-driving water pump, the nitrogen accumulated in the filter layer of the filter tank 1 is released, the head loss in the operation of the filter tank 1 is reduced, the filtering speed of the filter tank 1 is ensured, the problems that the nitrogen release period is manually set by experience at present, the incomplete nitrogen release, the increase of the operation cost and the like are easily caused are solved, in order to reduce the influence of external environmental factors on the electromagnetic flowmeter 9, after a user installs the electromagnetic flowmeter 9 at the position of the detection tube 6, the protective shell 7 can be clamped at the outer side of the detection tube 6, the protective shell 7 is enabled to provide the protective effect on the electromagnetic flowmeter 9, reducing the influence of external environmental factors on the electromagnetic flowmeter 9, prolonging the service life of the electromagnetic flowmeter 9, after the protective shell 7 is clamped on the outer side of the detection tube 6, a user can attach the fixing rod 805 to the protective shell 7, then pass the fixing bolt 804 through the fixing blocks 803 below the first fixing hoop 801 and the second fixing hoop 802, twist nuts into the fixing bolt 804, fix the first fixing hoop 801 and the second fixing hoop 802 on the outer side of the detection tube 6, further fix the fixing rod 805 on the outer side of the protective shell 7, then the user can rotate the pressing bolt 807 to enable the pressing bolt 807 to drive the pressing plate 808 to move downwards to be in contact with the top of the protective shell 7, further fix the protective shell 7, thereby improving the stability of the protective shell 7 in the use process, improving the friction force between the bottom of the pressing plate 808 and the top of the protective shell 7 by arranging the rubber pad 13, the fixing effect of the pressing plate 808 to the protective case 7 is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. The utility model provides a high-efficient nitrogen device that drives of autotrophic denitrification filtering pond, its characterized in that, including filtering pond (1) and PLC controller (2), the inner chamber of filtering pond (1) is provided with level gauge (3), the outside of filtering pond (1) communicates respectively has water inlet pipe (4), backwash drain pipe (10) and outlet pipe (11), the outside intercommunication of outlet pipe (11) has backwash inlet tube (12), the one end intercommunication of water inlet pipe (4) has detection tube (6), the outside of detection tube (6) is provided with protective housing (7) and electromagnetic flowmeter (9) respectively, the outside of protective housing (7) is provided with fixed establishment (8), the outside of water inlet pipe (4) is provided with nitrate content monitor (5).
2. The autotrophic denitrification filter high-efficiency nitrogen-driving device according to claim 1, wherein the fixing mechanism (8) comprises a first fixing hoop (801) and a second fixing hoop (802), the first fixing hoop (801) and the second fixing hoop (802) are both positioned on the outer side of the detection tube (6), a fixing block (803) is fixedly connected on the outer sides of the first fixing hoop (801) and the second fixing hoop (802), and a fixing bolt (804) is connected with an inner cavity thread of the fixing block (803).
3. The efficient nitrogen removal device for the autotrophic denitrification filter as claimed in claim 2, wherein the outer sides of the first fixing hoop (801) and the second fixing hoop (802) are fixedly connected with fixing rods (805), the tops of the fixing rods (805) are fixedly connected with fixing plates (806), inner cavities of the fixing plates (806) are in threaded connection with pressing bolts (807), and bottoms of the pressing bolts (807) are fixedly connected with pressing plates (808).
4. The autotrophic denitrification filter high-efficiency nitrogen-driving device according to claim 3, wherein a rubber pad (13) is fixedly connected to the bottom of the pressing plate (808).
5. The autotrophic denitrification filter high-efficiency nitrogen-driving device according to claim 1, wherein one side of the protective shell (7) is fixedly connected with a limiting sleeve (14).
6. The efficient nitrogen removal device for the autotrophic denitrification filter as claimed in claim 5, wherein one end of the limiting sleeve (14) is fixedly connected with a connecting rod (15), and one end of the connecting rod (15) is fixedly connected with a limiting ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818153.1U CN219709265U (en) | 2023-04-13 | 2023-04-13 | Autotrophic denitrification filter tank high-efficiency nitrogen-driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818153.1U CN219709265U (en) | 2023-04-13 | 2023-04-13 | Autotrophic denitrification filter tank high-efficiency nitrogen-driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219709265U true CN219709265U (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320818153.1U Active CN219709265U (en) | 2023-04-13 | 2023-04-13 | Autotrophic denitrification filter tank high-efficiency nitrogen-driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219709265U (en) |
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2023
- 2023-04-13 CN CN202320818153.1U patent/CN219709265U/en active Active
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