CN218786571U - Wetland micro-pollution denitrification facility - Google Patents
Wetland micro-pollution denitrification facility Download PDFInfo
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- CN218786571U CN218786571U CN202222967293.3U CN202222967293U CN218786571U CN 218786571 U CN218786571 U CN 218786571U CN 202222967293 U CN202222967293 U CN 202222967293U CN 218786571 U CN218786571 U CN 218786571U
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- denitrification
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- cleaning
- valve
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- 239000012528 membrane Substances 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 37
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 31
- 239000011574 phosphorus Substances 0.000 claims abstract description 31
- 238000011045 prefiltration Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 241000894006 Bacteria Species 0.000 claims description 16
- 238000011049 filling Methods 0.000 claims description 15
- 230000001546 nitrifying effect Effects 0.000 claims description 8
- 239000012510 hollow fiber Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000011001 backwashing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000011010 flushing procedure Methods 0.000 description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 2
- 229910052683 pyrite Inorganic materials 0.000 description 2
- 239000011028 pyrite Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model discloses a wetland micro-pollution denitrification facility, denitrification equipment includes nitrifies the district, nitrify the district and connect main denitrification district, denitrification district connects remove phosphorus district, prefilter district connects assist denitrification district, prefilter district connects first input tube, first input tube connects first intake basin, remove phosphorus district and connect first output tube, still be provided with filtration between district and the main denitrification district, promote organic matter and pollutant to the intake through denitrification and denitrification alternative reaction process, phosphorus-containing pollutant in the intake is further got rid of in dephosphorization district, and the intussuseption of prefilter is filled with the commonly used filtrations; the filtering structure and the cleaning structure arranged between the main denitrification area and the nitrification area can clean deposited impurities at the bottom of the membrane cavity in the separation membrane, and the recycling rate of the separation membrane is improved.
Description
Technical Field
The invention belongs to the technical field of denitrification treatment, and particularly relates to a wetland micro-pollution denitrification facility.
Background
Nitrogen is used as one of main factors causing water eutrophication, and the removal of nitrogen from water has important significance for protecting water environment. As an efficient and energy-saving ecological sewage treatment technology, the artificial wetland can bear larger hydraulic load and pollutant load, is particularly suitable for removing organic matters, suspended matters and nitrogen and phosphorus in water, and is an effective technology for controlling point source and non-point source nitrogen pollution of a water environment. Various denitrification mechanisms exist in the constructed wetland, including plant absorption, substrate adsorption, ammonia volatilization, nitrification-denitrification and the like, wherein the nitrification-denitrification is considered as the most main denitrification process. Research shows that the nitrification-denitrification nitrogen removal amount accounts for 60-86% of the total nitrogen removal amount, the nitrification region and the denitrification region can be integrally or independently designed, the integral design between the nitrification region and the nitrification region has the advantage of resource saving and simplicity in installation, a separation structure is arranged between the nitrification region and the denitrification region, the service time is too long, a large amount of impurities can be deposited at the bottom of the separation structure, and even the separation membrane can be damaged, so that the denitrification is not facilitated.
Disclosure of Invention
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a wetland micro pollution denitrogenation facility, denitrification equipment includes main denitrification district, assists denitrification district, nitrifies district, dephosphorization district and prefiltration district, main nitrification district connects main denitrification district, denitrification district connects remove the phosphorus district, prefiltration district connects assist denitrification district, prefiltration district connects first input tube, be provided with first valve on the first input tube, first intake chamber is connected to first input tube, remove the phosphorus district and connect first output tube, be provided with the second valve on the first output tube, nitrify the district with still be provided with filtration between the main denitrification district.
Based on the technical scheme, the bottom of the pre-filtration zone is communicated with the auxiliary denitrification zone, the bottom of the auxiliary denitrification zone is communicated with the nitrification zone through a communication groove, the main denitrification zone is communicated with the phosphorus removal zone through a communication groove at the bottom, corresponding fillers are filled in the main denitrification zone, the auxiliary denitrification zone, the nitrification zone, the phosphorus removal zone and the pre-filtration zone, a carbon source layer is arranged in front of the auxiliary denitrification zone and used for carrying out denitrification process, the pre-filtration zone is used for carrying out primary filtration on inlet water and filtering out larger particles and impurities in sludge, the gravel packing layer, the modified zeolite packing layer or the combination of the gravel packing layer and the modified zeolite packing layer are filled in the main denitrification zone, the auxiliary denitrification zone and the nitrification zone, organic matters and pollutants in the inlet water are improved through denitrification and denitrification alternate reaction process, the gravel and the sulfur mixing layer are filled in the phosphorus removal zone, the phosphorus-containing pollutants in the inlet water are further removed by the phosphorus removal zone, and commonly used filters are filled in the pre-filtration zone.
Furthermore, the filtering structure comprises a separation membrane, a membrane cavity is formed in the separation membrane, hollow fiber membranes are vertically arranged in the membrane cavity and are distributed at intervals, and a cleaning structure is further arranged on the filtering structure.
Further, it includes to wash the structure first scavenge pipe, second scavenge pipe and the first output tube that washs that the bottom of membrane chamber set up, the top of membrane chamber is provided with the second and washs the output tube, first scavenge pipe connection second intake chamber, the second scavenge pipe with first washing output tube connection first tank, the second washs the output tube connection the second tank, be provided with third valve and first washer pump on the first scavenge pipe, be provided with fourth valve and second backwash pump on the second scavenge pipe, be provided with the fifth valve on the first washing output tube, be provided with the sixth valve on the second washing output tube.
Further, the bottom in main denitrification district is provided with first evacuation pipe, it is provided with the second evacuation pipe to remove phosphorus district bottom, first evacuation pipe with the second evacuation is connected to first tank, be provided with the seventh valve on the first evacuation pipe, be provided with the eighth valve on the second evacuation pipe.
Furthermore, a filter screen is arranged between the nitrification region and the denitrification region, the filter structure further comprises the filter screen, the filter screen is vertically arranged between the nitrification region and the denitrification region and arranged on two sides of the separation membrane, and the aperture of the hollow fiber membrane is smaller than or equal to 15 microns.
Furthermore, a multi-hole suspended sphere filling structure is arranged in the nitrification region or the denitrification region, a plurality of through holes are formed in the outer surface of the multi-hole suspended sphere filling structure, and nitrifying bacteria or denitrifying bacteria are correspondingly arranged in the multi-hole suspended sphere filling structure.
Furthermore, a square cladding structure is arranged inside the multi-hole suspended sphere filling structure, the nitrifying bacteria or the denitrifying bacteria are arranged in the square cladding structure, and the multi-hole suspended sphere filling structure plays a good role in protecting the nitrifying bacteria and the denitrifying bacteria and prevents the nitrifying bacteria and the denitrifying bacteria from excessively losing.
Compared with the prior art, the invention has the beneficial effects that: in the scheme, corresponding fillers are filled in the main denitrification area, the auxiliary denitrification area, the nitrification area, the phosphorus removal area and the pre-filtration area, the pre-filtration area preliminarily filters inlet water to filter out larger particles and impurities in sludge, the gravel packing layer, the modified zeolite packing layer or the combination of the gravel packing layer and the modified zeolite packing layer are filled in the main denitrification area, the auxiliary denitrification area and the nitrification area, organic matters and pollutants in the inlet water are improved through the denitrification-denitrification alternative reaction process, the gravel packing layer and the pyrite mixing layer are filled in the phosphorus removal area, phosphorus-containing pollutants in the inlet water are further removed by the phosphorus removal area, and commonly used filters are filled in the pre-filtration area; the filtering structure and the cleaning structure arranged between the main denitrification area and the nitrification area can clean deposited impurities at the bottom of the membrane cavity inside the separation membrane, and the recycling rate of the separation membrane is improved.
Drawings
FIG. 1 is a schematic view of the structure of the denitrification facility of the present invention.
Fig. 2 is the schematic diagram of the multi-through-hole suspension sphere filling structure of the present invention.
List of reference symbols: 1-main denitrification area, 2-auxiliary denitrification area, 3-nitrification area, 4-dephosphorization area, 5-prefiltration area, 6-first input pipe, 7-first valve, 8-first inlet tank, 9-dephosphorization area, 10-first output pipe, 11-second valve, 12-separation membrane, 13-membrane cavity, 14-hollow fiber membrane, 15-first cleaning pipe, 16-second cleaning pipe, 17-first cleaning output pipe, 18-second cleaning output pipe, 19-second inlet tank, 20-first water storage tank, 21-second water storage tank, 22-third valve, 23-first flushing pump, 24-fourth valve, 25-second backwashing pump, 26-fifth valve, 27-sixth valve, 28-first empty pipe, 29-second empty pipe, 30-seventh valve, 31-eighth valve, 32-filter screen, 33-multi-hole suspension filling structure, 34-square through hole, 35-square through hole and 35-square through hole.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
The embodiment is as follows: referring to fig. 1 and 2, a wetland micro-pollution denitrification facility comprises a main denitrification area 31, an auxiliary denitrification area 32, a nitrification area 3, a phosphorus removal area 4 and a pre-filtration area 5, wherein the main denitrification area 3 is connected with the main denitrification area 31, the denitrification area 3 is connected with the phosphorus removal area 4, the pre-filtration area 5 is connected with the auxiliary denitrification area 32, the pre-filtration area 5 is connected with a first input pipe 6, a first valve 7 is arranged on the first input pipe 6, the first input pipe 6 is connected with a first water inlet tank 8, the phosphorus removal area 4 is connected with a first output pipe 10, a second valve 11 is arranged on the first output pipe 10, and a filtering structure is further arranged between the nitrification area 3 and the main denitrification area 31. The main denitrification area 31, the auxiliary denitrification area 32, the nitrification area 3, the phosphorus removal area 4 and the pre-filtration area 5 are filled with corresponding fillers, a carbon source layer is arranged in front of the auxiliary denitrification area 32 and used for carrying out a denitrification process, the pre-filtration area 5 is used for carrying out primary filtration on inlet water and filtering out larger particles and impurities in sludge, the gravel packing layer, the modified zeolite packing layer or the combination of the gravel packing layer and the modified zeolite packing layer are filled in the main denitrification area 31, the auxiliary denitrification area 32 and the nitrification area 3, organic matters and pollutants in the inlet water are promoted through a denitrification-denitrification alternative reaction process, the gravel packing layer and a pyrite mixing layer are filled in the phosphorus removal area 4, phosphorus-containing pollutants in the inlet water are further removed by the phosphorus removal area 4, and commonly used filters are filled in the pre-filtration area 5. The filtering structure comprises a separation membrane 12, a membrane cavity 13 is formed in the separation membrane 12, hollow fiber membranes 14 which are vertical and distributed at intervals are arranged in the membrane cavity 13, and a cleaning structure is further arranged on the filtering structure. The cleaning structure comprises a first cleaning pipe 15, a second cleaning pipe 16 and a first cleaning output pipe 17 which are arranged at the bottom of the membrane cavity 13, wherein the top of the membrane cavity 13 is provided with a second cleaning output pipe 18, the first cleaning pipe 15 is connected with a second water inlet tank 19, the second cleaning pipe 16 is connected with the first cleaning output pipe 17 through a first water storage tank 20, the second cleaning output pipe 18 is connected with a second water storage tank 21, a third valve 22 and a first flushing pump 23 are arranged on the first cleaning pipe 15, a fourth valve 24 and a second backwashing pump 25 are arranged on the second cleaning pipe 16, a fifth valve 26 is arranged on the first cleaning output pipe 17, and a sixth valve 27 is arranged on the second cleaning output pipe 18. The bottom in main denitrification district 31 is provided with first evacuation pipe 28, it is provided with second evacuation pipe 29 to remove phosphorus district 4 bottoms, first evacuation pipe 28 with the second evacuation is connected to first tank 20, be provided with seventh valve 30 on the first evacuation pipe 28, be provided with eighth valve 31 on the second evacuation pipe 29. A filter screen 32 is arranged between the nitrification region 3 and the denitrification region 3, the filter structure further comprises the filter screen 32, the filter screen 32 is vertically arranged between the nitrification region 3 and the denitrification region 3 and arranged at two sides of the separation membrane 12, and the aperture of the hollow fiber membrane 14 is less than or equal to 15 μm, so that impurities are further removed. A multi-through-hole 34 suspension sphere filling structure 33 is arranged in the nitrification region 3 or the denitrification region 3, a plurality of through holes 34 are formed in the outer surface of the multi-through-hole 34 suspension sphere filling structure 33, and nitrifying bacteria or denitrifying bacteria are correspondingly arranged in the multi-through-hole 34 suspension sphere filling structure 33. The square coating structure 9 is arranged inside the multi-through hole 34 suspension sphere filling structure 33, and the nitrifying bacteria or the denitrifying bacteria are arranged in the square coating structure 9.
The operation principle is as follows: firstly, inlet water enters a pre-filtering area 5 through a first water inlet pipe, is subjected to primary filtering, then enters an auxiliary denitrification area 32 with a carbon source, is subjected to denitrification process, enters a nitrification area 3 from the bottom after the denitrification process is finished, is subjected to nitrification reaction, enters a main denitrification area 31 through a filter screen 32 and a separation membrane 12 after the nitrification process is finished, enters a phosphorus removal area 4 through the bottom after a further denitrification step, and overflows to an outlet from the top after the phosphorus removal step is finished; during flushing operation, firstly closing the first valve 7, the second valve 11 and the fourth valve 24, starting the flushing pump to clean the interior of the separation membrane 12 after opening the third valve 22, enabling the cleaned wastewater to respectively enter the first water storage tank 20 and the second water storage tank 21 through the first bottom cleaning output pipe and the second top cleaning output pipe, and discharging the wastewater entering the main denitrification area 31 and the phosphorus removal area 4 through the emptying pipe at the bottom; the back flushing operation is performed by closing the flushing pump and the third valve 22, or closing the first valve to keep the sixth valve 27 open, and opening the back flushing pump and the fourth valve 24.
It should be noted that the above-mentioned contents only illustrate the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and it will be apparent to those skilled in the art that several modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments fall within the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a wetland micro pollution denitrogenation facility, its characterized in that, the denitrogenation facility includes main denitrification district (1), assists denitrification district (2), nitrifies district (3), removes phosphorus district (4) and prefiltration district (5), nitrify district (3) and connect main denitrification district (1), the denitrification district is connected remove phosphorus district (4), prefiltration district (5) are connected assist denitrification district (2), prefiltration district (5) are connected first input tube (6), be provided with first valve (7) on first input tube (6), first intake chamber (8) are connected in first input tube (6), remove phosphorus district (4) and connect first output tube (10), be provided with second valve (11) on first output tube (10), nitrify district (3) with still be provided with filtration between main denitrification district (1).
2. The wetland micro-pollution denitrification facility according to claim 1, wherein the filtering structure comprises a separation membrane (12), a membrane cavity (13) is formed in the separation membrane (12), hollow fiber membranes (14) are vertically and alternately distributed in the membrane cavity (13), and a cleaning structure is further arranged on the filtering structure.
3. The wetland micro-pollution denitrification facility according to claim 2, wherein the cleaning structure comprises a first cleaning pipe (15), a second cleaning pipe (16) and a first cleaning output pipe (17) which are arranged at the bottom of the membrane cavity (13), the top of the membrane cavity (13) is provided with the second cleaning output pipe (18), the first cleaning pipe (15) is connected with a second water inlet pool (19), the second cleaning pipe (16) and the first cleaning output pipe (17) are connected with a first water storage pool (20), the second cleaning output pipe (18) is connected with a second water storage pool (21), the first cleaning pipe (15) is provided with a third valve (22) and a first washing pump (23), the second cleaning pipe (16) is provided with a fourth valve (24) and a second back washing pump (25), the first cleaning output pipe (17) is provided with a fifth valve (26), and the second cleaning output pipe (18) is provided with a sixth valve (27).
4. The wetland micro-pollution denitrification facility according to claim 3, wherein a first emptying pipe (28) is arranged at the bottom of the main denitrification area (1), a second emptying pipe (29) is arranged at the bottom of the phosphorus removal area (4), the first emptying pipe (28) and the second emptying pipe are connected to the first water storage tank (20), a seventh valve (30) is arranged on the first emptying pipe (28), and an eighth valve (31) is arranged on the second emptying pipe (29).
5. The wetland micro-pollution denitrification facility according to claim 2, wherein the filtering structure further comprises a filtering net (32), the filtering net (32) is vertically arranged between the nitrification region (3) and the denitrification region and arranged on two sides of the separation membrane (12), and the pore diameter of the hollow fiber membrane (14) is less than or equal to 15 μm.
6. The wetland micro-pollution denitrification facility according to claim 5, wherein a multi-hole suspended sphere filling structure (33) is arranged in the nitrification region (3) or the denitrification region, a plurality of through holes (34) are formed in the outer surface of the multi-hole suspended sphere filling structure (33), and nitrifying bacteria or denitrifying bacteria are correspondingly arranged in the multi-hole suspended sphere filling structure (33).
7. The wetland micro-pollution denitrification facility according to claim 6, wherein a square cladding structure (9) is arranged inside the multi-pass hole (34) suspension sphere filling structure (33), and the nitrifying bacteria or the denitrifying bacteria are arranged inside the square cladding structure (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967293.3U CN218786571U (en) | 2022-11-08 | 2022-11-08 | Wetland micro-pollution denitrification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967293.3U CN218786571U (en) | 2022-11-08 | 2022-11-08 | Wetland micro-pollution denitrification facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218786571U true CN218786571U (en) | 2023-04-04 |
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ID=86504852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222967293.3U Active CN218786571U (en) | 2022-11-08 | 2022-11-08 | Wetland micro-pollution denitrification facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218786571U (en) |
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2022
- 2022-11-08 CN CN202222967293.3U patent/CN218786571U/en active Active
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