CN109734261A - Domestic sewage denitrifying-dephosphorizing purification tank - Google Patents
Domestic sewage denitrifying-dephosphorizing purification tank Download PDFInfo
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- CN109734261A CN109734261A CN201910201436.XA CN201910201436A CN109734261A CN 109734261 A CN109734261 A CN 109734261A CN 201910201436 A CN201910201436 A CN 201910201436A CN 109734261 A CN109734261 A CN 109734261A
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Abstract
The present invention relates to technical field of sewage, specifically disclose a kind of domestic sewage denitrifying-dephosphorizing purification tank, including groove body, water inlet pipe, grill frame, inclined clapboard, baffle, first diversion pipe, second diversion pipe, third diversion pipe, perforation loading plate, first partition, second partition, third partition, 4th partition, first sewage collecting tank, second sewage collecting tank, first guide shell, second guide shell, perforation gas distribution pipe, stripping tube, inclined plate, first sponge iron filler, second sponge iron filler, third sponge iron filler, fluidized bed floating stuffing and outlet pipe, the first partition that groove body is vertically disposed, second partition, third partition and the 4th partition are successively divided into deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area, secondary anaerobic reaction zone, aerobic fluidized bed reaction zone and sloping plate deposition Disengagement zone.Present invention accomplishes domestic sanitary wastewaters to realize the function of dephosphorization denitrogenation while removing COD.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind of domestic sewage denitrifying-dephosphorizing purification tanks.
Background technique
Currently, sewage lacks because pipe network coverage rate is low with processing equipment in major part samll cities and towns, China and rural area, and
Difficulty accomplishes unified collection processing, and while economic fast development, problem of environmental pollution is outstanding day by day, garbage disposal, sewage
The problems such as processing, need to obtain the solution of science, just facilitate sustainable development.For family domestic sewage processing, in addition to using first
Into sewage water treatment method outside, it is also necessary in conjunction with country practical situation, specific aim develops a series of adaptation rural sewage treatments
Device, to overcome drawbacks described above existing for existing effluent purification method.
Summary of the invention
The object of the present invention is to provide a kind of domestic sewage denitrifying-dephosphorizing purification tanks, are being removed with meeting domestic sanitary wastewater
The function of dephosphorization denitrogenation is realized while COD.
In order to solve the above-mentioned technical problems, the present invention provides a kind of domestic sewage denitrifying-dephosphorizing purification tank, including groove body,
Water inlet pipe, grill frame, inclined clapboard, baffle, the first diversion pipe, the second diversion pipe, third diversion pipe, perforation loading plate, first every
Plate, second partition, third partition, the 4th partition, the first sewage collecting tank, the second sewage collecting tank, the first guide shell, second are led
Flow cartridge, perforation gas distribution pipe, stripping tube, inclined plate, the first sponge iron filler, the second sponge iron filler, third sponge iron filler, fluidisation
Bed floating stuffing and outlet pipe；The first partition that the groove body is vertically disposed, second partition, third partition and the 4th every
Plate is successively divided into deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area, secondary anaerobic reaction zone, aerobic fluidized bed reaction zone
Dross collecting region, institute are separated out by the inclined clapboard with the top of sloping plate deposition Disengagement zone, deoxygenation anoxic biochemical reaction zone
It states grill frame to be located on the inclined clapboard, the water inlet pipe is connect with the grill frame, for accessing sanitary sewage, the baffle
It is located at the top of deoxygenation anoxic biochemical reaction zone and forms collecting tank, institute on the top of deoxygenation anoxic biochemical reaction zone
State that the first sewage collecting tank is located at the top of the level-one anaerobic reaction area, second sewage collecting tank is located at the second level and detests
The top of oxygen reaction zone, the perforation loading plate are three and are respectively provided at deoxygenation anoxic biochemical reaction zone, level-one anaerobism
The lower part of reaction zone and secondary anaerobic reaction zone, the upper end of the first diversion pipe are connect with the inclined clapboard, and lower end passes through described
The perforation loading plate of deoxygenation anoxic biochemical reaction zone, the upper end of the second diversion pipe are connect with the collecting tank that the baffle is formed,
Lower end passes through the perforation loading plate of the level-one anaerobic reaction area, and the upper end of third diversion pipe and first sewage collecting tank connect
It connects, lower end passes through the perforation loading plate of the secondary anaerobic reaction zone, and second sewage collecting tank passes through overflow port and institute
The top connection of aerobic fluidized bed reaction zone is stated, first guide shell is arranged vertically in the aerobic fluidized bed reaction zone,
The perforation gas distribution pipe passes through first guide shell from top to bottom and its lower ending opening is located at the lower end of first guide shell,
The lower part of the aerobic fluidized bed reaction zone is connected to by the second overflow port with the lower part of the sloping plate deposition Disengagement zone, and described the
Two guide shells are arranged vertically in the sloping plate deposition Disengagement zone, the stripping tube pass through from top to bottom second guide shell and
Its lower ending opening is located at the lower end of second guide shell, and the inclined plate is located at the middle part of the sloping plate deposition Disengagement zone, described
The top of sloping plate deposition Disengagement zone is equipped with overflow weir, and the outlet pipe is connect with the overflow weir, described for purified water to be discharged
First sponge iron filler is located on the perforation loading plate in deoxygenation anoxic biochemical reaction zone, and the second sponge iron filler is set
On the perforation loading plate in the level-one anaerobic reaction area, the third sponge iron filler is located at the secondary anaerobic reaction zone
In perforation loading plate on, the fluidized bed floating stuffing is located in the aerobic fluidized bed reaction zone.
It preferably, further include air pump, air hose and air adjustable valves, the air pump passes through the air hose and institute
It states perforation gas distribution pipe to connect with stripping tube, the air adjustable valves are two and are respectively provided at the perforation gas distribution pipe and air lift
Guan Shang.
Preferably, the lower part of the sloping plate deposition Disengagement zone is inclined-plane slot structure.
It preferably, further include mixed liquor collecting tank, the top of second guide shell is connect with the mixed liquor collecting tank.
It preferably, further include bed mud suction tube, the bed mud suction tube is located at deoxygenation anoxic biochemical reaction zone, level-one
The lower part of anaerobic reaction area and secondary anaerobic reaction zone.
Preferably, the partial size of the first sponge iron filler is 7~10cm.
Preferably, the partial size of the second sponge iron filler is 5~7cm.
Preferably, the partial size of the third sponge iron filler is 3~5cm.
Preferably, the aperture of the perforation loading plate is 1~5cm.
Preferably, the height of the baffle is formed collecting tank, the first sewage collecting tank and the second sewage collecting tank is successively
It reduces, the height of the perforation loading plate in deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic reaction zone
Degree successively increases.
Sanitary sewage deoxidation dephosphorization purification tank of the invention can utilize the ferro element pair in the sponge iron filler of anaerobic zone
Microorganism growth has facilitation and certain intensified anti-nitrated effect in slot, generates after Zero-valent Iron and microbial action reaction
Fe2+And Fe3+It can be co-precipitated with phosphorus, make the cohesion such as colloidal particles, suspended matter, precipitating, integrated purification tank is whole
Body is compact-sized simple, does not take up space, and manufacture installation is easy, and at low cost, the reflux unit of setting can be improved going for nitrogen phosphorus
It except rate, is connected to collecting tank with diversion pipe between reactive tank, avoids the mixing of high-concentration and low-concentration sewage.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the domestic sewage denitrifying-dephosphorizing purification tank of the embodiment of the present invention.
In figure, 1: water inlet pipe；2: grill frame；3: inclined clapboard；4: the first diversion pipes；5: perforation supporting plate；；6: the first sponges
Iron filler；7: the second sponge iron fillers；8: third sponge iron filler；9: baffle；10: the second diversion pipes；11: the first sewage collectings
Slot；12: third diversion pipe；13: the second sewage collecting tanks；14: the first overflow ports；15: the first guide shells；16: fluidized bed suspends
Filler；17: the second overflow ports；18: inclined plate；19: overflow weir；20: outlet pipe；21: air pump；22: air adjustable valves；23:
Air hose；24: perforation gas distribution pipe；25: stripping tube；26: the second guide shells；27: mixed liquor collecting tank；28: bed mud suction tube；
29: first partition；30: second partition；31: third partition；32: the four partitions；33: groove body.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", " upper ", " under ", "
Before interior ", " outside " orientation or positional relationship of equal instructions in ", " level ", " top ", " bottom ", " is vertically on ", " afterwards ", " left side ", " right side ", "
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, " multiple " are meant that two or two
More than.
As shown in Figure 1, the domestic sewage denitrifying-dephosphorizing purification tank of the present embodiment includes: groove body 33, water inlet pipe 1, grill frame
2, inclined clapboard 3, baffle 9, the first diversion pipe 4, the second diversion pipe 10, third diversion pipe 12, perforation loading plate 5, first partition 29,
Second partition 30, third partition 31, the 4th partition 32, the first sewage collecting tank 11, the second sewage collecting tank 13, the first guide shell
15, the second guide shell 26, perforation gas distribution pipe 24, stripping tube 25, inclined plate 18, the first sponge iron filler 6, the second sponge iron filler 7,
Third sponge iron filler 8, fluidized bed floating stuffing 16 and outlet pipe 20.
First partition 29, second partition 30, third partition 31 and the 4th partition 32 that groove body 33 is vertically disposed successively divide
It is heavy to be divided into deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area, secondary anaerobic reaction zone, aerobic fluidized bed reaction zone and inclined plate
The top of shallow lake Disengagement zone, deoxygenation anoxic biochemical reaction zone is separated out dross collecting region by inclined clapboard 3, and grill frame 2 is located at inclined clapboard 3
On, water inlet pipe 1 is connect with grill frame 2, and for accessing sanitary sewage, baffle 9 is located at the top of deoxygenation anoxic biochemical reaction zone simultaneously
Collecting tank is formed on the top of deoxygenation anoxic biochemical reaction zone, the first sewage collecting tank 11 is located at the upper of level-one anaerobic reaction area
Portion, the second sewage collecting tank 13 are located at the top of secondary anaerobic reaction zone, and perforation loading plate 5 is three and is respectively provided at deoxygenation and lacks
Oxygen biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic reaction zone lower part, the upper end of the first diversion pipe 4 and inclined clapboard 3
Connection, lower end pass through the perforation loading plate 5 of deoxygenation anoxic biochemical reaction zone, the upper end of the second diversion pipe 10 and the formation of baffle 9
Collecting tank connection, lower end passes through the perforation loading plate 5 of level-one anaerobic reaction area, the upper end of third diversion pipe 12 and first dirty
Water collecting groove 11 connects, and lower end passes through the perforation loading plate 5 of secondary anaerobic reaction zone, and the second sewage collecting tank 13 passes through overflow
Mouth 14 is connected to the top of aerobic fluidized bed reaction zone, and the first guide shell 15 is arranged vertically in aerobic fluidized bed reaction zone, is worn
Hole gas distribution pipe 24 passes through the lower end that the first guide shell 15 and its lower ending opening are located at the first guide shell 15 from top to bottom, in gas distribution
Effect fluidized bed at elevated floating stuffing 16 and sewage are in flow regime, remove pollutant conducive to the aerobic treatment of sewage, good
The lower part of oxygen fluidized bed reaction zone is connected to by the second overflow port 17 with the lower part of sloping plate deposition Disengagement zone, and the second guide shell 26 is perpendicular
It is directly arranged in sloping plate deposition Disengagement zone, stripping tube 25 passes through the second guide shell 26 from top to bottom and its lower ending opening is located at second
The lower end of guide shell 26 is helped since the power that gas floats drives flowing up for sludge in the second guide shell 26 when air lift
It is acted in the reflux of sloping plate deposition Disengagement zone base sludge, sludge can be completed by being promoted without setting reflux water pump
The technique of reflux denitrogenation dephosphorizing, handles sewage more efficiently, has saved cost, improves benefit, sloping plate deposition separation
The lower part in area can be surface groove structure, and in order to mobile phone sludge, inclined plate 18 is located at the middle part of sloping plate deposition Disengagement zone, and inclined plate is heavy
The top of shallow lake Disengagement zone is equipped with overflow weir 19, and outlet pipe 20 is connect with overflow weir 19, and for purified water to be discharged, the first sponge iron is filled out
Material 6 is located on the perforation loading plate 5 in deoxygenation anoxic biochemical reaction zone, and the second sponge iron filler 7 is located at level-one anaerobic reaction area
In perforation loading plate 5 on, third sponge iron filler 8 is located on the perforation loading plate 5 in secondary anaerobic reaction zone, and fluidized bed is outstanding
Floating filler 16 is located in aerobic fluidized bed reaction zone.
The domestic sewage denitrifying-dephosphorizing purification tank of the present embodiment can also include: air pump 21, air hose 23 and air capacity
Regulating valve 22, air pump 21 are connect by air hose 23 with perforation gas distribution pipe 24 and stripping tube 25, and air adjustable valves 22 are two
It is a and be respectively provided at perforation gas distribution pipe 24 and stripping tube 25 on.
The domestic sewage denitrifying-dephosphorizing purification tank of the present embodiment can also include: mixed liquor collecting tank 27 and bed mud suction tube
28, the top of the second guide shell 26 is connect with mixed liquor collecting tank 27, bed mud suction tube 28 be located at deoxygenation anoxic biochemical reaction zone,
The lower part of level-one anaerobic reaction area and secondary anaerobic reaction zone.
The partial size of first sponge iron filler 6 is 7~10cm.The partial size of second sponge iron filler 7 is 5~7cm.Third sponge
The partial size of iron filler 8 is 3~5cm.The aperture of perforation loading plate 5 is 1~5cm.When sewage sequentially enters, packing material size becomes step by step
It is small.
The height of collecting tank, the first sewage collecting tank 11 and the second sewage collecting tank 13 that baffle 9 is formed successively reduces, and removes
The height of perforation loading plate 5 in oxygen anoxic biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic reaction zone successively increases.
The circulation of diversion pipe and collecting tank for sewage in biochemical treatment apparatus, and height successively reduces, no setting is required water pump is to dirt
Water is promoted, and under gravity, sewage can voluntarily flow through the purification filler in biochemical treatment apparatus, and it is net to be able to decontamination
Change.
The working principle of the domestic sewage denitrifying-dephosphorizing purification device of the present embodiment are as follows: from water inlet pipe 1 flow into sewage into
Enter oil removal, grid, dross collecting region, biggish sundries, dross and oil slick in sewage is removed by filtering and oil removal, after filtering
Sewage flow to the bottom that deoxygenation anoxic biochemical reaction answers area by 4 diameter of the first diversion pipe from the bottom of oil removal, grid, dross collecting region
Portion, sewage are flowed in the annular collection trough that the baffle 9 on deoxygenation anoxic biochemical reaction zone top is formed by the second diversion pipe 10
The bottom of level-one anaerobic reaction area enters the first sewage collecting tank by the sewage that level-one anaerobic reaction area bottom rises to top
In 11,11 bottom of the first sewage collecting tank connects the second diversion pipe 12, and sewage is imported to the bottom of secondary anaerobic reaction zone, deoxygenation
Anoxic biochemical reaction answers area, level-one anaerobic reaction area, secondary anaerobic reaction zone to be respectively provided with the sponges of three kinds of different brackets partial sizes
Iron filler, microorganism carries out anaerobic reaction under anaerobic condition, and organic pollutant hydrolysis acidification is become small molecule compound, by
In the special spongy stereochemical structure of sponge iron, adequate space is provided for the enrichment and growth of microorganism, is each in biochemical reactor
The collaboration symbiosis of kind microorganism provides good microenvironment, and during the reaction, organic pollutant passes through Fe2+With Fe3+Between
Conversion is removed, then since the special chemical ingredient of sponge iron forms a large amount of primary batteries, the nascent state that electrode reaction generates
Fe2+The Fe3 generated with further oxidation+And their hyrate, make glue under the effects of precipitating, flocculation, absorption and volume are swept
Body coagulative precipitation separation, is greatly lowered the P index in water outlet, but also has both the effect of Biology-iron, have both chemistry except P and
The multifunctional microbial absorption carrier of biological Inner electrolysis effect, enhances the purification function of activated sludge, also strengthens in sewage
COD、NH3The removal effect of-N.
Sewage overflows to the second sewage collecting tank 13 of top after reacting by secondary anaerobic area, then passes through the first overflow port 14
Into aerobic fluidized bed reaction zone, fluidized bed floating stuffing 16 is set, bottom is equipped with perforation gas distribution in aerobic fluidized bed reaction zone
Pipe 24, perforation gas distribution pipe 24 are with the first guide shell 15 outside, after ventilating in perforation gas distribution pipe 24, pass through the dynamic of gas floating
Power drives flowing up for fluidized bed floating stuffing 16 and sewage in the first guide shell 15, makes the first guide shell 15 is inside and outside to be formed
Under circulate state, conducive to coming into full contact with for aerobic sludge in sewage and organic matter, so that aerobic treatment goes to decontaminate
Contaminate object.
The lower part of the 4th partition 32 between aerobic fluidized bed reaction zone and sloping plate deposition Disengagement zone is equipped with the second overflow port
17, sewage after aerobic reaction enters sloping plate deposition Disengagement zone by the second overflow port 17, sewage from bottom to top flow through inclined plate
18 carry out precipitating filtering, and the lower section that sludge is isolated in inclined plate 18 is collected, and the second guide shell is equipped among sloping plate deposition Disengagement zone
26 and stripping tube 25, since the power that gas floats drives flowing up for sludge in the second guide shell 26 to keep inclined plate heavy when air lift
The sludge of shallow lake Disengagement zone bottom can flow back, and the water after the separation of inclined plate 18 flows into overflow weir 19, overflow weir 19 and outlet pipe 20
Connection is up to the water discharge of environmental protection standard
Sanitary sewage deoxidation dephosphorization purification tank of the invention can utilize the ferro element pair in the sponge iron filler of anaerobic zone
Microorganism growth has facilitation and certain intensified anti-nitrated effect in slot, generates after Zero-valent Iron and microbial action reaction
Fe2+And Fe3+It can be co-precipitated with phosphorus, make the cohesion such as colloidal particles, suspended matter, precipitating, integrated purification tank is whole
Body is compact-sized simple, does not take up space, and manufacture installation is easy, and at low cost, the reflux unit of setting can be improved going for nitrogen phosphorus
It except rate, is connected to collecting tank with diversion pipe between reactive tank, avoids the mixing of high-concentration and low-concentration sewage.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (10)
1. a kind of domestic sewage denitrifying-dephosphorizing purification tank, which is characterized in that including groove body (33), water inlet pipe (1), grill frame (2),
Inclined clapboard (3), baffle (9), the first diversion pipe (4), the second diversion pipe (10), third diversion pipe (12), perforation loading plate (5),
First partition (29), second partition (30), third partition (31), the 4th partition (32), the first sewage collecting tank (11), the second dirt
Water collecting groove (13), the first guide shell (15), the second guide shell (26), perforation gas distribution pipe (24), stripping tube (25), inclined plate
(18), the first sponge iron filler (6), the second sponge iron filler (7), third sponge iron filler (8), fluidized bed floating stuffing (16)
With outlet pipe (20)；The first partition (29) that the groove body (33) is vertically disposed, second partition (30), third partition
(31) and the 4th partition (32) be successively divided into deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area, secondary anaerobic reaction zone,
Aerobic fluidized bed reaction zone and sloping plate deposition Disengagement zone, the top of deoxygenation anoxic biochemical reaction zone is by the inclined clapboard (3)
It is separated out dross collecting region, the grill frame (2) is located on the inclined clapboard (3), the water inlet pipe (1) and the grill frame
(2) it connects, for accessing sanitary sewage, the baffle (9) is located at the top of deoxygenation anoxic biochemical reaction zone and described
Collecting tank is formed at the top of deoxygenation anoxic biochemical reaction zone, and first sewage collecting tank (11) is located at the level-one anaerobic reaction
The top in area, second sewage collecting tank (13) are located at the top of the secondary anaerobic reaction zone, the perforation loading plate (5)
For three and it is respectively provided at the lower part of deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic reaction zone,
The upper end of first diversion pipe (4) is connect with the inclined clapboard (3), and lower end passes through the perforation of deoxygenation anoxic biochemical reaction zone
The upper end of loading plate (5), the second diversion pipe (10) is connect with the collecting tank that the baffle (9) is formed, and lower end passes through described one
The perforation loading plate (5) of grade anaerobic reaction area, the upper end of third diversion pipe (12) are connect with first sewage collecting tank (11),
Its lower end passes through the perforation loading plate (5) of the secondary anaerobic reaction zone, and second sewage collecting tank (13) passes through overflow port
(14) it is connected to the top of the aerobic fluidized bed reaction zone, first guide shell (15) is arranged vertically at the aerobic fluidisation
In bed reaction zone, the perforation gas distribution pipe (24) passes through first guide shell (15) from top to bottom and its lower ending opening is located at institute
The lower end of the first guide shell (15) is stated, the lower part of the aerobic fluidized bed reaction zone passes through the second overflow port (17) and the inclined plate
The lower part of depositing separation area is connected to, and second guide shell (26) is arranged vertically in the sloping plate deposition Disengagement zone, the gas
It mentions pipe (25) and passes through second guide shell (26) and its lower ending opening from top to bottom and be located under second guide shell (26)
End, the inclined plate (18) are located at the middle part of the sloping plate deposition Disengagement zone, and the top of the sloping plate deposition Disengagement zone is equipped with overflow
Weir (19), the outlet pipe (20) connect with the overflow weir (19), for purified water, the first sponge iron filler to be discharged
(6) it is located on the perforation loading plate (5) in deoxygenation anoxic biochemical reaction zone, the second sponge iron filler (7) is located at institute
It states on the perforation loading plate (5) in level-one anaerobic reaction area, the third sponge iron filler (8) is located at the secondary anaerobic reaction
On perforation loading plate (5) in area, the fluidized bed floating stuffing (16) is located in the aerobic fluidized bed reaction zone.
2. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that further include air pump (21),
Air hose (23) and air adjustable valves (22), the air pump (21) pass through the air hose (23) and the perforation gas distribution pipe
(24) with stripping tube (25) connect, the air adjustable valves (22) be two and be respectively provided at the perforation gas distribution pipe (24) and
On stripping tube (25).
3. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that the sloping plate deposition Disengagement zone
Lower part be inclined-plane slot structure.
4. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that further include mixed liquor collecting tank
(27), the top of second guide shell (26) is connect with the mixed liquor collecting tank (27).
5. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that further include bed mud suction tube
(28), it is anti-to be located at deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic for the bed mud suction tube (28)
Answer the lower part in area.
6. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that the first sponge iron filler
(6) partial size is 7~10cm.
7. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that the second sponge iron filler
(7) partial size is 5~7cm.
8. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that the third sponge iron filler
(8) partial size is 3~5cm.
9. domestic sewage denitrifying-dephosphorizing purification tank according to claim 1, which is characterized in that the perforation loading plate (5)
Aperture be 1~5cm.
10. domestic sewage denitrifying-dephosphorizing purification tank described in any one of -9 according to claim 1, which is characterized in that described
The height of collecting tank, the first sewage collecting tank (11) and the second sewage collecting tank (13) that baffle (9) is formed successively reduces, described
The height of perforation loading plate (5) in deoxygenation anoxic biochemical reaction zone, level-one anaerobic reaction area and secondary anaerobic reaction zone is successively
It increases.
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| CN201910201436.XA CN109734261A (en) | 2019-03-18 | 2019-03-18 | Domestic sewage denitrifying-dephosphorizing purification tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362409A (en) * | 2020-04-02 | 2020-07-03 | 中原环保郑州设备工程科技有限公司 | Domestic sewage treatment purifying tank |
| CN114772731A (en) * | 2022-04-19 | 2022-07-22 | 青岛思普润水处理股份有限公司 | AOA coupling autotrophic nitrogen removal water treatment method and system based on BFM form |
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