CN110066069A - A kind of buried biological and ecological processing system of sanitary sewage half - Google Patents
A kind of buried biological and ecological processing system of sanitary sewage half Download PDFInfo
- Publication number
- CN110066069A CN110066069A CN201910302290.8A CN201910302290A CN110066069A CN 110066069 A CN110066069 A CN 110066069A CN 201910302290 A CN201910302290 A CN 201910302290A CN 110066069 A CN110066069 A CN 110066069A
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- filtering ponds
- pond
- sewage
- sedimentation basin
- wastewater collection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of buried biological and ecological processing systems of sanitary sewage half, it is related to eco-treatment technology field, including the wastewater collection pond set gradually from left to right, filtering ponds, anaerobic pond, anoxic pond, aerobic tank, sedimentation basin and its clear water reserviors, sewage water inlet pipe outside wastewater collection pond connection, filtering ponds are connected to wastewater collection pond by outlet component one, the pool wall of the filtering ponds is equipped with the backwash outlet pipe being connected to filtering ponds inside, anaerobic pond is connected to filtering ponds by outlet component two, it is connected between the bottom of clear water reserviors and the filtering ponds by backwashing water inlet pipe, not only simplify sewage treatment process, also improving improves aesthetic effect whole in sewage disposal process.
Description
Technical field
The present invention relates to eco-treatment technology fields, and in particular to a kind of processing of sanitary sewage half buried biological and ecological
System.
Background technique:
Sanitary sewage is the waste water being discharged in resident's daily life, is mainly derived from residential architecture and public building, is such as lived
Between residence, organ, school, hospital, shop, public place and industry hygiene etc..Pollutant contained by sanitary sewage is mainly
Organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen) and a large amount of pathogenic microorganisms (such as parasitic ovum and intestines
Road transmission virus etc.).The organic matter being present in sanitary sewage is extremely unstable, is easy corruption and generates stench.Bacterium and cause of disease
Body using organic matter in sanitary sewage as nutrition mass propagation, can lead to infectious disease from spreading prevalence.Wherein organic pollutant and phosphorus
It is maximum to environment and water pollution, and sanitary sewage can generate a large amount of foul smell, affect the health and ecology ring of people
Therefore border must be handled before sanitary sewage discharge.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of buried biological and ecological processing system of sanitary sewage half
Caused above-mentioned defects in technology.
The buried biological and ecological processing system of a kind of sanitary sewage half, including the wastewater collection set gradually from left to right
Pond, filtering ponds, anaerobic pond, anoxic pond, aerobic tank, sedimentation basin and its clear water reserviors, wastewater collection pond connection outside wastewater influent
Pipe, filtering ponds are connected to wastewater collection pond by outlet component one, and the pool wall of the filtering ponds is equipped with and connects inside filtering ponds
Logical backwash outlet pipe, anaerobic pond are connected to filtering ponds by outlet component two, and anoxic pond and anaerobic pond are by being set to anoxic
Overflow port one on the pool wall that pond joins with anaerobic pond is connected to, and is connected between aerobic tank and anaerobic pond, and sedimentation basin and aerobic tank are logical
The overflow port two crossed on the pool wall that sedimentation basin joins with aerobic tank is connected to, the bottom of the sedimentation basin and the anaerobic pond
Bottom be connected to by mud return line, and the end of mud return line is equipped with immersible pump one, and immersible pump one is located at sedimentation basin
Overflow port tee joint on the pool wall of bottom, clear water reserviors and sedimentation basin by being set to clear water reserviors and sedimentation basin handover, the clear water
It is connected between the bottom in pond and the filtering ponds by backwashing water inlet pipe, and the end of anti-cleaning return pipe is equipped with immersible pump
Two, immersible pump two is located at the bottom of clear water reserviors.
Preferably, the outlet component one is made of diving elevator pump and water distributor, and the setting of diving elevator pump is received in waste water
Collect in pond, water distributor is connected to diving elevator pump, and the end of water distributor is located at the surface of filtering ponds.
Preferably, the outlet component two is made of filtering ponds outlet pipe and valve, filtering ponds outlet pipe one end and filtering
Pond connection, the other end are connected to anaerobic pond, and valve is mounted on filtering ponds outlet pipe, and the outlet position of the sewage backflow pipe
In the underface of filtering ponds outlet pipe.
Preferably, the bottom of the aerobic tank is equipped with the fixed bracket of ABS, is equipped with aeration head on the fixed bracket of ABS, good
The pool wall upper end in oxygen pond is equipped with air blower, and air blower is connected to aeration head by appendix.
Preferably, ecological floating island is equipped in the anaerobic pond, anoxic pond, sedimentation basin and its clear water reserviors, on ecological floating island
Kind is implanted with water plant.
Preferably, the wastewater collection pond is internally provided with basket grid, and there is drawstring in the upper end system of basket grid, draws
Rope extends to the outside of wastewater collection pond, and basket grid is located at the end of sewage water inlet pipe.
Preferably, the end of the end of the water distributor, the end of backwash water inlet pipe and its filtering ponds outlet pipe
It is " rich " font structure, " rich " font structure is located in wastewater collection pond, and is evenly equipped with several cloth on " rich " font structure
Water hole.
Preferably, it is equipped with filter cotton in the filtering ponds, is filled with polyurethane biologic packing material in filter cotton.
The buried biological and ecological processing system of a kind of sanitary sewage half of the invention improves sewage treatment load, sludge
Load is up to 0.45kgBOD5/kgMLVSSd；Compared with traditional sewage treatment system device, the system to COD, ammonia nitrogen,
The degradation rate of total phosphorus improves 30%~40%, and sedimentation basin improves 10%~20% to the removal rate of SS；The system Construction and
Operation cost is low, and anoxic pond is not necessarily to conventional fillers, and the root system of plant prosperity can provide attachment for biomembrane, and sedimentation basin is planted
Mud up-floating phenomenon can be effectively controlled in object root system；Equipment Miniaturizable, integrated, intelligent, occupied area in this system
It is small, it can be used to implement in the old residential area combined sewer processing of rain sewage diversion；Whole system not only simplifies sewage treatment
Technique, also improving improves aesthetic effect whole in sewage disposal process.
Detailed description of the invention
Fig. 1 is the schematic diagram of cross-section diagram of the invention；
Fig. 2 is the schematic diagram of top view of the invention；
Fig. 3 is the end of water distributor, the schematic diagram for backwashing the end of water inlet pipe and its end of filtering ponds outlet pipe；
Wherein: 1- sewage water inlet pipe, 2- wastewater collection pond, 3- filtering ponds, 4- anaerobic pond, 5- anoxic pond, 6- aerobic tank,
7- sedimentation basin, 8- clear water reserviors, 9- basket grid, 10- drawstring, 11- diving elevator pump, 12- water distributor, 13- backwash water outlet
Pipe, 14- filter cotton, 15- valve, 16- filtering ponds outlet pipe, 17- backwash water inlet pipe, 18- overflow port one, 19- overflow port
Two, 20- mud return line, 21- air blower, the fixed bracket of 22-ABS, 23- aeration head, 24- appendix, 25- immersible pump one,
26- water plant, 27- ecological floating island, 28- immersible pump two, 29- overflow port three.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figure 1 to Figure 3, the buried biological and ecological processing system of a kind of sanitary sewage half, including from left to right successively
Wastewater collection pond 2, filtering ponds 3, anaerobic pond 4, anoxic pond 5, aerobic tank 6, sedimentation basin 7 and its clear water reserviors 8 of setting, waste water are received
Collection pond 2 connects external sewage water inlet pipe 1, and filtering ponds 3 are connected to wastewater collection pond 2 by outlet component one, the filtering ponds
3 pool wall, which is equipped with, passes through outlet component with the backwash outlet pipe 13 that is connected to inside filtering ponds 3, anaerobic pond 4 and filtering ponds 3
Two connections, anoxic pond 5 are connected to anaerobic pond 4 by the overflow port 1 on the pool wall that anoxic pond 5 and anaerobic pond 4 join,
It is connected between aerobic tank 6 and anaerobic pond 5, the pool wall that sedimentation basin 7 and aerobic tank 6 are joined by being set to sedimentation basin 7 and aerobic tank 6
On overflow port 2 19 be connected to, the bottom of the sedimentation basin 7 and the bottom of the anaerobic pond 4 pass through mud return line 20 and are connected to,
And the end of mud return line 20 is equipped with immersible pump 1, immersible pump 1 is located at the bottom of sedimentation basin 7, clear water reserviors 8 and precipitating
Pond 7 by 29 tee joint of overflow port that is set on the pool wall that clear water reserviors 8 and sedimentation basin 7 join, the bottom of the clear water reserviors 8 with
It is connected between the filtering ponds 3 by backwash water inlet pipe 17, and the end of anti-cleaning return pipe 17 is equipped with immersible pump 2 28,
Immersible pump 2 28 is located at the bottom of clear water reserviors 8.
In the present embodiment, the outlet component one is made of diving elevator pump 11 and water distributor 12, elevator pump 11 of diving under water
It is arranged in wastewater collection pond 2, water distributor 12 is connected to diving elevator pump 11, and the end of water distributor 12 is located at filtering ponds 3
Surface.
In the present embodiment, the outlet component two is made of filtering ponds outlet pipe 16 and valve 15, filtering ponds outlet pipe
16 one end are connected to filtering ponds 3, and the other end is connected to anaerobic pond 4, and valve 15 is mounted on filtering ponds outlet pipe 16, and described
The outlet of sewage backflow pipe 20 is located at the underface of filtering ponds outlet pipe 16.
In the present embodiment, the bottom of the aerobic tank 6 is equipped with the fixed bracket 22 of ABS, installs on the fixed bracket 22 of ABS
There is aeration head 23, the pool wall upper end of aerobic tank 6 is equipped with air blower 21, and air blower 21 is connected with aeration head 23 by appendix 24
It is logical.
In the present embodiment, ecological floating island is equipped in the anaerobic pond 4, anoxic pond 5, sedimentation basin 7 and its clear water reserviors 8
27, kind is implanted with water plant 26 on ecological floating island 27, ecological floating island 27 can plant as needed canna, calamus, thaliadeabata,
Mullet grass etc..
In the present embodiment, the wastewater collection pond 2 is internally provided with basket grid 9, the upper end system of basket grid 9
There is drawstring 10, drawstring 10 extends to the outside of wastewater collection pond 2, and basket grid 9 is located at the end of sewage water inlet pipe 1.
In the present embodiment, the end of the water distributor 12, the end of backwash water inlet pipe 17 and its filtering ponds go out
The end of water pipe 16 is " rich " font structure, and " rich " font structure is located in wastewater collection pond 2, and on " rich " font structure
It is evenly equipped with several water distributing pores.
In the present embodiment, it is equipped with filter cotton 14 in the filtering ponds 3, is filled out in filter cotton 14 filled with polyurethane biology
Material.
Sanitary sewage enters wastewater collection pond 2 by sewage water inlet pipe 1, intercepts floating material etc. by basket grid 9.It is latent
Water elevator pump 11 will be evenly distributed on filtering ponds 3 after sewage lifting, remove in waste water in the filter cotton 14 in filtering ponds 3
Suspended matter.Filtered water falls into the polyP bacteria that 3 bottom of pond of filtering ponds enters through filtering ponds outlet pipe 13 in anaerobic pond 4 and sludge
Phosphorus in reaction release sewage sludge, and partial organic substances carry out ammonification at this time, the water plant 26 on ecological floating island 27 can also
Initial breakdown water pollutant.26 well developed root system of water plant on ecological floating island 27 in anoxic pond 5 provides attached for microorganism
Object form biomembrane, waste water enters anaerobic pond 4, denitrogenation carried out under the microbial action based on denitrifying bacteria, simultaneously
Water plant 26 also generates catharsis to water pollutant.Waste water enters aerobic tank 6 from 5 bottom of anoxic pond, in aerobic tank 6
The plant combined effect of interior formation microorganism-issues caliche in the collective effect of efficient degrading bacteria, rhizosphere microorganism, plant
Phosphorus in water removal is removed in reaction, while the COD that degrades, efficient degradation water pollutant purify water.The water inlet of sedimentation basin 7 is settable
Flow-stopping plate, sedimentation basin 7 can intake from bottom, and the water plant 26 on ecological floating island 27 can carry out deep purifying, and its to water outlet
Root system can prevent Mud up-floating.Treated, and water enters the storage of clear water reserviors 8, and sludge enters anaerobic pond by 8 mud return lines 20
4 bottoms release phosphorus is reused.By treated, clear water is used for this system immersible pump two by backwash water inlet pipe 13
The filter cotton 14 of backwash provides water source, and backwash sewage enters wastewater collection pond 2 by backwash outlet pipe 13, recycle net
Change.
It should be pointed out that in order to control the content of water oxygen, the coverage rate of the ecological floating island in anaerobic pond 4 is
100%；The coverage rate of 5 ecological floating island 27 is 60% in anoxic pond；The coverage rate of ecological floating island 27 in aerobic tank 6 is
100%；The coverage rate of ecological floating island 27 in sedimentation basin 7 is 50%.
The buried biological and ecological processing system of a kind of sanitary sewage half of the invention improves sewage treatment load, dirty
Mud load is up to 0.45kgBOD5/kgMLVSSd；Compared with traditional sewage treatment system device, the system is to COD, ammonia
Nitrogen, total phosphorus degradation rate improve 30%~40%, sedimentation basin improves 10%~20% to the removal rate of SS；The system is built
If low with operation cost, anoxic pond is not necessarily to conventional fillers, and the root system of plant prosperity can provide attachment for biomembrane, and precipitate
Mud up-floating phenomenon can be effectively controlled in pond root system of plant；Equipment Miniaturizable, integrated, intelligent, land occupation face in this system
Product is small, can be used to implement in the old residential area combined sewer processing of rain sewage diversion；Whole system not only simplifies at sewage
Science and engineering skill, also improving improves aesthetic effect whole in sewage disposal process.
As known by the technical knowledge, the present invention can pass through the implementation of other essence without departing from its spirit or essential feature
Scheme is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.
All changes within the scope of the invention or within the scope equivalent to the present invention are included in the invention.
Claims (8)
1. a kind of buried biological and ecological processing system of sanitary sewage half, which is characterized in that including what is set gradually from left to right
Wastewater collection pond (2), filtering ponds (3), anaerobic pond (4), anoxic pond (5), aerobic tank (6), sedimentation basin (7) and its clear water reserviors (8),
Sewage water inlet pipe (1) outside wastewater collection pond (2) connection, filtering ponds (3) are connected with wastewater collection pond (2) by outlet component one
It is logical, the pool wall of the filtering ponds (3) be equipped with the backwash outlet pipe (17) that be connected to inside filtering ponds (3), anaerobic pond (4) and
Filtering ponds (3) are connected to by outlet component two, and anoxic pond (5) and anaerobic pond (4) are by being set to anoxic pond (5) and anaerobic pond (4)
Overflow port one (18) connection on the pool wall of handover, is connected to, sedimentation basin (3) and aerobic tank between aerobic tank (6) and anaerobic pond (4)
(6) it is connected to by the overflow port two (19) being set on the pool wall that sedimentation basin (7) join with aerobic tank (6), the sedimentation basin (7)
Bottom is connected to the bottom of the anaerobic pond (4) by mud return line (20), and the end of mud return line (20) is equipped with and dives
Water pump one (25), immersible pump one (25) are located at the bottom of sedimentation basin (7), and clear water reserviors (8) and sedimentation basin (7) are by being set to clear water reserviors
(8) it is connected to the overflow port three (29) on the pool wall of sedimentation basin (7) handover, the bottom of the clear water reserviors (8) and the filtering ponds
(3) by backwash water inlet pipe (17) connection between, and the end for instead cleaning return pipe (17) is equipped with immersible pump two (28), diving
Two (28) of pump are located at the bottom of clear water reserviors (8).
2. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
Outlet component one is made of diving elevator pump (11) and water distributor (12), and diving elevator pump (11) is arranged in wastewater collection pond (2)
In, water distributor (12) is connected to diving elevator pump (11), and the end of water distributor (12) is located at the surface of filtering ponds (3).
3. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
Outlet component two is made of filtering ponds outlet pipe (16) and valve (15), and filtering ponds outlet pipe (16) one end and filtering ponds (3) are even
Logical, the other end is connected to anaerobic pond (4), and valve (15) is mounted on filtering ponds outlet pipe (16), and the sewage backflow pipe
(20) outlet is located at the underface of filtering ponds outlet pipe (16).
4. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
The bottom of aerobic tank (6) is equipped with ABS and fixes bracket (22), and ABS is equipped with aeration head (23), aerobic tank on fixed bracket (22)
(6) pool wall upper end is equipped with air blower (21), and air blower (21) is connected to aeration head (23) by appendix (24).
5. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
It is equipped with ecological floating island (27) in anaerobic pond (4), anoxic pond (5), sedimentation basin (7) and its clear water reserviors (8), on ecological floating island (27)
Kind is implanted with water plant (26).
6. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
Wastewater collection pond (2) is internally provided with basket grid (9), and the upper end system of basket grid (9) has drawstring (10), and drawstring (10) prolongs
The outside of wastewater collection pond (2) is extended to, and basket grid (9) is located at the end of sewage water inlet pipe (1).
7. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
The end of the end of water distributor (12), the end for backwashing water inlet pipe (17) and its filtering ponds outlet pipe (16) is " rich "
Font structure, " rich " font structure are located in wastewater collection pond (2), and are evenly equipped with several water distributing pores on " rich " font structure.
8. a kind of buried biological and ecological processing system of sanitary sewage half according to claim 1, it is characterised in that: described
Filter cotton (14) are equipped in filtering ponds (3), polyurethane biologic packing material is filled in filter cotton (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302290.8A CN110066069A (en) | 2019-04-16 | 2019-04-16 | A kind of buried biological and ecological processing system of sanitary sewage half |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302290.8A CN110066069A (en) | 2019-04-16 | 2019-04-16 | A kind of buried biological and ecological processing system of sanitary sewage half |
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| Publication Number | Publication Date |
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| CN110066069A true CN110066069A (en) | 2019-07-30 |
Family
ID=67367736
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910302290.8A Pending CN110066069A (en) | 2019-04-16 | 2019-04-16 | A kind of buried biological and ecological processing system of sanitary sewage half |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964649A (en) * | 2014-05-26 | 2014-08-06 | 杨仲辉 | Living sewage biologic wetland treatment device |
| CN207243677U (en) * | 2017-08-03 | 2018-04-17 | 广东千秋伟业环境服务有限公司 | Non-pump type depth integrated equipment for sewage treatment |
| CN208471808U (en) * | 2017-12-28 | 2019-02-05 | 广东贤畅环保科技有限公司 | Town sewage integrated treatment facility |
| CN208732871U (en) * | 2018-08-17 | 2019-04-12 | 湖南现代环境科技股份有限公司 | A kind of sewage disposal system |
-
2019
- 2019-04-16 CN CN201910302290.8A patent/CN110066069A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964649A (en) * | 2014-05-26 | 2014-08-06 | 杨仲辉 | Living sewage biologic wetland treatment device |
| CN207243677U (en) * | 2017-08-03 | 2018-04-17 | 广东千秋伟业环境服务有限公司 | Non-pump type depth integrated equipment for sewage treatment |
| CN208471808U (en) * | 2017-12-28 | 2019-02-05 | 广东贤畅环保科技有限公司 | Town sewage integrated treatment facility |
| CN208732871U (en) * | 2018-08-17 | 2019-04-12 | 湖南现代环境科技股份有限公司 | A kind of sewage disposal system |
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Application publication date: 20190730 |