CN209740933U - Domestic sewage nitrogen and phosphorus removal purification device - Google Patents
Domestic sewage nitrogen and phosphorus removal purification device Download PDFInfo
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- CN209740933U CN209740933U CN201920336191.7U CN201920336191U CN209740933U CN 209740933 U CN209740933 U CN 209740933U CN 201920336191 U CN201920336191 U CN 201920336191U CN 209740933 U CN209740933 U CN 209740933U
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Abstract
The utility model relates to a sewage treatment technical field specifically discloses a domestic sewage nitrogen and phosphorus removal purifier, including the cell body, the inlet tube, the grid frame, the oblique baffle, the baffle, first honeycomb duct, the second honeycomb duct, the third honeycomb duct, the perforation loading board, first baffle, the second baffle, the third baffle, the fourth baffle, first sewage collecting vat, second sewage collecting vat, first draft tube, the second draft tube, the perforation gas distribution pipe, the air stripping pipe, the swash plate, first sponge iron packs, second sponge iron packs, third sponge iron packs, fluidized bed suspension packs and outlet pipe, the cell body is by the vertical first baffle of arranging, the second baffle, third baffle and fourth baffle are separated in proper order for deoxidization oxygen deficiency biochemical reaction district, one-level anaerobic reaction district, second grade anaerobic reaction district, aerobic fluidized bed reaction district and swash plate precipitation separation district. The utility model discloses satisfied domestic waste water and realized dephosphorization denitrogenation's function when getting rid of COD.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a domestic sewage nitrogen and phosphorus removal purifier.
Background
At present, in most small towns and rural areas in China, sewage is difficult to collect and treat uniformly due to low pipe network coverage rate and lack of treatment equipment, the problem of environmental pollution is prominent day by day while the economy is rapidly developed, and the problems of garbage treatment, sewage treatment and the like need to be solved scientifically so as to be beneficial to sustainable development. Aiming at the domestic sewage treatment, a series of devices suitable for rural sewage treatment are purposefully developed by combining the rural actual conditions besides adopting an advanced sewage treatment method so as to overcome the defects of the existing sewage purification method.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a domestic sewage nitrogen and phosphorus removal purifier to satisfy domestic waste water and realize the function of dephosphorization denitrogenation when getting rid of COD.
In order to solve the technical problem, the utility model provides a domestic sewage nitrogen and phosphorus removal purification device, which comprises a tank body, a water inlet pipe, a grid frame, an inclined baffle plate, a first flow guide pipe, a second flow guide pipe, a third flow guide pipe, a perforated bearing plate, a first baffle plate, a second baffle plate, a third baffle plate, a fourth baffle plate, a first sewage collecting tank, a second sewage collecting tank, a first flow guide cylinder, a second flow guide cylinder, a perforated gas distribution pipe, a gas stripping pipe, an inclined plate, a first sponge iron filler, a second sponge iron filler, a third sponge iron filler, a fluidized bed suspension filler and a water outlet pipe; the cell body is vertically arranged first baffle, second baffle, third baffle and fourth baffle are separated in proper order for deoxidization oxygen deficiency biochemical reaction district, one-level anaerobic reaction district, second grade anaerobic reaction district, good oxygen fluidized bed reaction district and inclined plate sedimentation disengagement zone, deoxidization oxygen deficiency biochemical reaction district's upper portion quilt the dross collecting region is separated out to the inclined plate, the grid frame is established on the inclined plate, the inlet tube with the grid frame is connected for insert domestic sewage, the baffle is established deoxidization oxygen deficiency biochemical reaction district's upper portion and the deoxidization oxygen deficiency biochemical reaction district's upper portion forms the collecting vat, first sewage collecting vat is established the upper portion of one-level anaerobic reaction district the second sewage collecting vat is established the upper portion in second grade anaerobic reaction district, the perforation loading board is three and establishes respectively deoxidization oxygen deficiency biochemical reaction district, oxygen deficiency biochemical reaction district, The lower part in one-level anaerobic reaction district and second grade anaerobic reaction district, the upper end of first honeycomb duct with the oblique baffle is connected, its lower extreme passes the perforation loading board in deoxidization oxygen deficiency biochemical reaction district, the upper end of second honeycomb duct with the collecting vat that the baffle formed is connected, its lower extreme passes the perforation loading board in one-level anaerobic reaction district, the upper end of third honeycomb duct with first sewage collecting vat is connected, its lower extreme passes the perforation loading board in second grade anaerobic reaction district, the second sewage collecting vat pass through the overflow mouth with the upper portion intercommunication in aerobic fluidized bed reaction district, first honeycomb duct is vertical to be arranged in aerobic fluidized bed reaction district, perforation gas distribution pipe from the top down passes first honeycomb duct and its lower extreme opening is located the lower extreme of first honeycomb duct, the lower part in aerobic fluidized bed reaction district passes through the second overflow mouth with the lower part intercommunication in swash plate sedimentation disengagement zone, the vertical arrangement of second draft tube is in the inclined plate sedimentation disengagement zone, the air stripping pipe from the top down passes second draft tube and its lower extreme opening are located the lower extreme of second draft tube, the swash plate is established the middle part of inclined plate sedimentation disengagement zone, the upper portion of inclined plate sedimentation disengagement zone is equipped with the overflow weir, the outlet pipe with the overflow weir is connected for discharge purified water, first sponge iron is packed to be established on the perforation loading board in deoxidization oxygen deficiency biochemical reaction district, second sponge iron is packed to be established on the perforation loading board in one-level anaerobic reaction district, third sponge iron is packed to be established on the perforation loading board in the second grade anaerobic reaction district, fluidized bed suspension filler is established in the aerobic fluidized bed reaction district.
Preferably, still include air pump, air hose and air quantity regulating valve, the air pump passes through the air hose with perforation gas distribution pipe and air stripping pipe are connected, air quantity regulating valve is two and establishes respectively on perforation gas distribution pipe and the air stripping pipe.
Preferably, the lower part of the inclined plate precipitation separation area is of an inclined plane groove structure.
Preferably, the mixing device further comprises a mixed liquid collecting tank, and the upper part of the second guide cylinder is connected with the mixed liquid collecting tank.
Preferably, still include the sediment suction pipe, the sediment suction pipe is established the lower part in deoxidization oxygen deficiency biochemical reaction district, first order anaerobic reaction district and second order anaerobic reaction district.
Preferably, the particle size of the first sponge iron filler is 7-10 cm.
Preferably, the particle size of the second sponge iron filler is 5-7 cm.
Preferably, the particle size of the third sponge iron filler is 3-5 cm.
Preferably, the aperture of the perforated bearing plate is 1-5 cm.
Preferably, the height of the collecting tank, the first sewage collecting tank and the second sewage collecting tank formed by the baffle plate is reduced in sequence, and the height of the perforated bearing plate in the oxygen-removing and oxygen-deficient biochemical reaction area, the first-stage anaerobic reaction area and the second-stage anaerobic reaction area is increased in sequence.
The utility model discloses a domestic sewage deoxidation dephosphorization purifies groove can utilize the iron element in the sponge iron filler in anaerobic zone to have promotion effect and certain enhanced denitrification to the growth of inslot microorganism, Fe2+ and Fe3+ that produce after zero-valent iron and the microorganism effect reaction all can take place the coprecipitation with phosphorus, make colloidal particle, suspended solid etc. condense, deposit, the purification groove of integration, overall structure is compact simple, do not account for the space, it is easy to make the installation, low cost, the reflux unit of setting can improve the clearance of nitrogen phosphorus, with collecting vat and honeycomb duct intercommunication between the reaction tank, the mixture of high low concentration sewage has been avoided.
Drawings
FIG. 1 is a schematic view of the sectional structure of a domestic sewage denitrification and dephosphorization purifying device according to an embodiment of the present invention.
In the figure, 1: a water inlet pipe; 2: a grid frame; 3: an inclined partition plate; 4: a first draft tube; 5: punching a bearing plate; 6: a first sponge iron filler; 7: a second sponge iron filler; 8: a third sponge iron filler; 9: a baffle plate; 10: a second draft tube; 11: a first sewage collection tank; 12: a third draft tube; 13: a second sewage collecting tank; 14: a first overflow port; 15: a first draft tube; 16: fluidized bed suspended packing; 17: a second overflow port; 18: a sloping plate; 19: an overflow weir; 20: a water outlet pipe; 21: an air pump; 22: an air quantity regulating valve; 23: an air tube; 24: perforating a gas distribution pipe; 25: a gas stripping tube; 26: a second draft tube; 27: a mixed liquid collecting tank; 28: a sediment suction pipe; 29: a first separator; 30: a second separator; 31: a third partition plate; 32: a fourth separator; 33: a tank body.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, the domestic sewage denitrification and dephosphorization purifying apparatus of the embodiment comprises: the device comprises a tank body 33, a water inlet pipe 1, a grid frame 2, an inclined partition plate 3, a baffle plate 9, a first guide pipe 4, a second guide pipe 10, a third guide pipe 12, a perforated bearing plate 5, a first partition plate 29, a second partition plate 30, a third partition plate 31, a fourth partition plate 32, a first sewage collecting tank 11, a second sewage collecting tank 13, a first guide cylinder 15, a second guide cylinder 26, a perforated air distribution pipe 24, an air stripping pipe 25, an inclined plate 18, a first sponge iron filler 6, a second sponge iron filler 7, a third sponge iron filler 8, a fluidized bed suspension filler 16 and a water outlet pipe 20.
The tank body 33 is sequentially divided into a deoxygenation and anoxia biochemical reaction area, a primary anaerobic reaction area, a secondary anaerobic reaction area, an aerobic fluidized bed reaction area and an inclined plate precipitation separation area by a first partition plate 29, a second partition plate 30, a third partition plate 31 and a fourth partition plate 32 which are vertically arranged, the upper part of the deoxygenation and anoxia biochemical reaction area is divided into a scum collection area by an inclined partition plate 3, a grid frame 2 is arranged on the inclined partition plate 3, a water inlet pipe 1 is connected with the grid frame 2 and used for accessing domestic sewage, a baffle plate 9 is arranged on the upper part of the deoxygenation and anoxia biochemical reaction area and forms a collection tank on the upper part of the deoxygenation and anoxia biochemical reaction area, a first sewage collection tank 11 is arranged on the upper part of the primary anaerobic reaction area, a second sewage collection tank 13 is arranged on the upper part of the secondary anaerobic reaction area, three perforated bearing plates 5 are respectively arranged on the lower parts of the deoxygenat, the upper end of a first draft tube 4 is connected with an inclined clapboard 3, the lower end of the first draft tube passes through a perforated bearing plate 5 of an oxygen-removing and oxygen-lacking biochemical reaction area, the upper end of a second draft tube 10 is connected with a collecting tank formed by a baffle 9, the lower end of the second draft tube passes through the perforated bearing plate 5 of a primary anaerobic reaction area, the upper end of a third draft tube 12 is connected with a first sewage collecting tank 11, the lower end of the third draft tube passes through the perforated bearing plate 5 of a secondary anaerobic reaction area, a second sewage collecting tank 13 is communicated with the upper part of an aerobic fluidized bed reaction area through an overflow port 14, a first draft tube 15 is vertically arranged in the aerobic fluidized bed reaction area, a perforated air distribution tube 24 passes through the first draft tube 15 from top to bottom, the lower end opening of the perforated air distribution tube 15 is positioned at the lower end of the first draft tube 15, fluidized bed suspension filler 16 and sewage are in a flowing state under the action of air distribution, the aerobic, the second draft tube 26 is vertically arranged in the inclined plate precipitation separation area, the air stripping pipe 25 passes through the second draft tube 26 from top to bottom, and the lower end opening is positioned at the lower end of the second draft tube 26, during air stripping, the upward flow of the sludge in the second draft tube 26 is driven by the power of the upward floating gas, which is helpful for the backflow action of the sludge at the bottom of the inclined plate precipitation separation area, thereby the sludge backflow denitrification and dephosphorization process can be completed without arranging a backflow water pump for lifting, the sewage can be treated more efficiently, the cost is saved, the benefit is improved, the lower part of the inclined plate precipitation separation area can be of an inclined plane groove structure, so that the sludge can be conveniently treated by a mobile phone, the inclined plate 18 is arranged in the middle of the inclined plate precipitation separation area, the upper part of the inclined plate precipitation separation area is provided with an overflow weir 19, the water outlet pipe 20 is connected with the overflow weir 19 for discharging purified water, the second sponge iron filler 7 is arranged on the perforated carrying plate 5 in the primary anaerobic reaction zone, the third sponge iron filler 8 is arranged on the perforated carrying plate 5 in the secondary anaerobic reaction zone, and the fluidized bed suspended filler 16 is arranged in the aerobic fluidized bed reaction zone.
The domestic sewage nitrogen and phosphorus removal purification device of the embodiment can also comprise: the air pump 21 is connected with the perforated air distribution pipe 24 and the air stripping pipe 25 through the air pipe 23, and the air quantity regulating valves 22 are two and are respectively arranged on the perforated air distribution pipe 24 and the air stripping pipe 25.
The domestic sewage nitrogen and phosphorus removal purification device of the embodiment can also comprise: the mixed liquor collecting tank 27 and the bottom sediment suction pipe 28, the upper part of the second guide cylinder 26 is connected with the mixed liquor collecting tank 27, and the bottom sediment suction pipe 28 is arranged at the lower parts of the oxygen and oxygen lack biochemical reaction area, the primary anaerobic reaction area and the secondary anaerobic reaction area.
The particle size of the first sponge iron filler 6 is 7-10 cm. The particle size of the second sponge iron filler 7 is 5-7 cm. The particle size of the third sponge iron filler 8 is 3-5 cm. The aperture of the perforated bearing plate 5 is 1-5 cm. When sewage enters in sequence, the particle size of the filler is gradually reduced.
The heights of the collecting tank formed by the baffle 9, the first sewage collecting tank 11 and the second sewage collecting tank 13 are sequentially reduced, and the heights of the perforated bearing plates 5 in the oxygen-removing and oxygen-lack biochemical reaction area, the primary anaerobic reaction area and the secondary anaerobic reaction area are sequentially increased. The honeycomb duct and the collecting vat are used for circulating sewage in the biochemical treatment device, and highly reduce in proper order, need not to set up the water pump and promote sewage, and under the effect of gravity, sewage can flow through the purification filler in the biochemical treatment device by oneself, can decontaminate and purify.
The working principle of the domestic sewage denitrification and dephosphorization purifying device of the embodiment is as follows: the sewage flowing in from the water inlet pipe 1 enters an oil separation zone, a grating and a scum collecting zone, the larger impurities, scum and floating oil in the sewage are removed through filtering and oil separation, the filtered sewage flows from the bottom of the oil separation zone, the grating and the scum collecting zone to the bottom of a deoxygenation and anoxia biochemical reaction zone through a first guide pipe 4, the sewage flows to the bottom of a primary anaerobic reaction zone through a second guide pipe 10 in an annular collecting tank formed by a baffle 9 at the top end of the deoxygenation and anoxia biochemical reaction zone, the sewage which rises to the top through the bottom of the primary anaerobic reaction zone enters a first sewage collecting tank 11, the bottom of the first sewage collecting tank 11 is connected with the second guide pipe 12, the sewage is guided into the bottom of a secondary anaerobic reaction zone, the deoxygenation and anoxia biochemical reaction zone, the primary anaerobic reaction zone and the secondary anaerobic reaction zone are respectively filled with sponge iron fillers with three different grade grain diameters, and the microorganisms perform anaerobic reaction under the, hydrolyzing and acidifying organic pollutants into small molecular compounds, providing sufficient space for enrichment and growth of microorganisms due to the special spongy three-dimensional structure of sponge iron, providing a good microenvironment for the synergistic symbiosis of various microorganisms in a biochemical reactor, removing the organic pollutants through the conversion between Fe2+ and Fe3+ in the reaction process, forming a large number of primary batteries due to the special chemical components of the sponge iron, generating nascent Fe2+ by electrode reaction, further oxidizing the generated Fe3+ and hydrates thereof, and separating colloid coagulation and precipitation under the actions of precipitation, flocculation, adsorption, rolling, and the like to greatly reduce the P index in effluent, have the function of biological iron, have the functions of a multifunctional microorganism adsorption carrier with the functions of chemically removing P and electrolyzing in organisms, strengthen the purification function of activated sludge, and strengthen COD in sewage, NH3-N removal effect.
The sewage overflows to a second sewage collecting tank 13 above after passing through the reaction of the secondary anaerobic zone, and then enters an aerobic fluidized bed reaction zone through a first overflow port 14, fluidized bed suspended filler 16 is arranged in the aerobic fluidized bed reaction zone, a perforated gas distribution pipe 24 is arranged at the bottom, and a first guide cylinder 15 is arranged at the periphery of the perforated gas distribution pipe 24.
The lower part of a fourth clapboard 32 between an aerobic fluidized bed reaction zone and an inclined plate precipitation separation zone is provided with a second overflow port 17, sewage after aerobic reaction enters the inclined plate precipitation separation zone through the second overflow port 17, the sewage flows through an inclined plate 18 from bottom to top for precipitation and filtration, the sludge is isolated and collected below the inclined plate 18, a second guide cylinder 26 and an air lifting pipe 25 are arranged in the middle of the inclined plate precipitation separation zone, the sludge at the bottom of the inclined plate precipitation separation zone can flow back because the upward flow of the sludge in the second guide cylinder 26 is driven by the power of air floating during air lifting, the water after being separated by the inclined plate 18 flows into an overflow weir 19, the overflow weir 19 is connected with a water outlet pipe 20 and discharges the water reaching the environmental protection standard
The utility model discloses a domestic sewage deoxidation dephosphorization purifies groove can utilize the iron element in the sponge iron filler in anaerobic zone to have promotion effect and certain enhanced denitrification to the growth of inslot microorganism, Fe2+ and Fe3+ that produce after zero-valent iron and the microorganism effect reaction all can take place the coprecipitation with phosphorus, make colloidal particle, suspended solid etc. condense, deposit, the purification groove of integration, overall structure is compact simple, do not account for the space, it is easy to make the installation, low cost, the reflux unit of setting can improve the clearance of nitrogen phosphorus, with collecting vat and honeycomb duct intercommunication between the reaction tank, the mixture of high low concentration sewage has been avoided.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A domestic sewage denitrification and dephosphorization purifying device is characterized by comprising a tank body (33), a water inlet pipe (1), a grid frame (2), an inclined partition plate (3), a baffle plate (9), a first guide pipe (4), a second guide pipe (10), a third guide pipe (12), a perforated bearing plate (5), a first partition plate (29), a second partition plate (30), a third partition plate (31), a fourth partition plate (32), a first sewage collection tank (11), a second sewage collection tank (13), a first guide cylinder (15), a second guide cylinder (26), a perforated gas distribution pipe (24), a gas stripping pipe (25), an inclined plate (18), a first sponge iron filler (6), a second sponge iron filler (7), a third sponge iron filler (8), a fluidized bed suspension filler (16) and a water outlet pipe (20); the cell body (33) is vertically arranged the first baffle (29), the second baffle (30), the third baffle (31) and the fourth baffle (32) are sequentially separated into a deoxidization oxygen deficiency biochemical reaction area, a first-level anaerobic reaction area, a second-level anaerobic reaction area, an aerobic fluidized bed reaction area and an inclined plate precipitation separation area, the upper part of the deoxidization oxygen deficiency biochemical reaction area is separated into a scum collection area by the inclined baffle (3), a grid frame (2) is arranged on the inclined baffle (3), a water inlet pipe (1) is connected with the grid frame (2) for accessing domestic sewage, a baffle (9) is arranged on the upper part of the deoxidization oxygen deficiency biochemical reaction area and forms a collection tank on the upper part of the deoxidization oxygen deficiency biochemical reaction area, a first sewage collection tank (11) is arranged on the upper part of the first-level anaerobic reaction area, a second sewage (13) is arranged on the upper part of the second-level anaerobic reaction area, the perforation bearing plate (5) is three and is established respectively the lower part in deoxidization oxygen deficiency biochemical reaction district, one-level anaerobic reaction district and second grade anaerobic reaction district, the upper end of first honeycomb duct (4) with oblique baffle (3) are connected, and its lower extreme passes the perforation bearing plate (5) in deoxidization oxygen deficiency biochemical reaction district, the upper end of second honeycomb duct (10) with the collecting vat that baffle (9) formed is connected, and its lower extreme passes the perforation bearing plate (5) in one-level anaerobic reaction district, the upper end of third honeycomb duct (12) with first sewage collecting vat (11) are connected, and its lower extreme passes the perforation bearing plate (5) in second grade anaerobic reaction district, second sewage collecting vat (13) through overflow mouth (14) with the upper portion intercommunication in aerobic fluidized bed reaction district, first draft tube (15) are vertical to be arranged in the aerobic fluidized bed reaction district, the perforation gas distribution pipe (24) passes from top to bottom the first draft tube (15) and the lower end opening thereof are positioned at the lower end of the first draft tube (15), the lower part of the aerobic fluidized bed reaction zone is communicated with the lower part of the inclined plate precipitation separation zone through a second overflow port (17), the second draft tube (26) is vertically arranged in the inclined plate precipitation separation zone, the gas stripping pipe (25) passes from top to bottom the second draft tube (26) and the lower end opening thereof are positioned at the lower end of the second draft tube (26), the inclined plate (18) is arranged at the middle part of the inclined plate precipitation separation zone, the upper part of the inclined plate precipitation separation zone is provided with an overflow weir (19), the water outlet pipe (20) is connected with the overflow weir (19) for discharging purified water, the first sponge iron filler (6) is arranged on the perforation (5) in the oxygen and oxygen deficiency biochemical reaction zone, the second sponge iron filler (7) is arranged on the perforated bearing plate (5) in the primary anaerobic reaction zone, the third sponge iron filler (8) is arranged on the perforated bearing plate (5) in the secondary anaerobic reaction zone, and the fluidized bed suspended filler (16) is arranged in the aerobic fluidized bed reaction zone.
2. The device for denitrification, dephosphorization and purification of domestic sewage according to claim 1, further comprising an air pump (21), an air pipe (23) and an air quantity control valve (22), wherein said air pump (21) is connected to said perforated air distribution pipe (24) and said air stripping pipe (25) through said air pipe (23), and said air quantity control valve (22) is two and is respectively disposed on said perforated air distribution pipe (24) and said air stripping pipe (25).
3. The domestic sewage nitrogen and phosphorus removal purification device of claim 1, wherein the lower part of the inclined plate precipitation separation zone is of an inclined groove structure.
4. The domestic sewage nitrogen and phosphorus removal purification device according to claim 1, further comprising a mixed liquid collecting tank (27), wherein an upper portion of the second guide cylinder (26) is connected to the mixed liquid collecting tank (27).
5. The domestic sewage nitrogen and phosphorus removal purification device of claim 1, further comprising a bottom sludge suction pipe (28), wherein the bottom sludge suction pipe (28) is arranged at the lower part of the oxygen and oxygen removal and oxygen lack biochemical reaction area, the primary anaerobic reaction area and the secondary anaerobic reaction area.
6. The domestic sewage nitrogen and phosphorus removal purification device according to claim 1, wherein the particle size of the first sponge iron filler (6) is 7-10 cm.
7. The domestic sewage nitrogen and phosphorus removal purification device according to claim 1, wherein the particle size of the second sponge iron filler (7) is 5-7 cm.
8. The domestic sewage nitrogen and phosphorus removal purification device according to claim 1, wherein the particle size of the third sponge iron filler (8) is 3-5 cm.
9. The domestic sewage nitrogen and phosphorus removal purification device of claim 1, wherein the aperture of the perforated bearing plate (5) is 1-5 cm.
10. The domestic sewage nitrogen and phosphorus removal purification apparatus as claimed in any one of claims 1 to 9, wherein the heights of the collecting tank formed by the baffles (9), the first sewage collecting tank (11) and the second sewage collecting tank (13) are sequentially lowered, and the heights of the perforated carrying plates (5) in the oxygen and oxygen removal and oxygen deficiency biochemical reaction zone, the primary anaerobic reaction zone and the secondary anaerobic reaction zone are sequentially raised.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920336191.7U CN209740933U (en) | 2019-03-18 | 2019-03-18 | Domestic sewage nitrogen and phosphorus removal purification device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920336191.7U CN209740933U (en) | 2019-03-18 | 2019-03-18 | Domestic sewage nitrogen and phosphorus removal purification device |
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| CN209740933U true CN209740933U (en) | 2019-12-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN111701286A (en) * | 2020-05-25 | 2020-09-25 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas desulfurization waste water high efficiency separates clarification processing apparatus |
| CN113461157A (en) * | 2021-05-08 | 2021-10-01 | 光大水务科技发展（南京）有限公司 | Activated sludge guide cylinder, guide mechanism and sewage treatment strengthening device |
-
2019
- 2019-03-18 CN CN201920336191.7U patent/CN209740933U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN111701286A (en) * | 2020-05-25 | 2020-09-25 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas desulfurization waste water high efficiency separates clarification processing apparatus |
| CN111701286B (en) * | 2020-05-25 | 2023-09-26 | 北京中航泰达环保科技股份有限公司 | High-efficient separation clarification processing apparatus of sintering flue gas desulfurization waste water |
| CN113461157A (en) * | 2021-05-08 | 2021-10-01 | 光大水务科技发展（南京）有限公司 | Activated sludge guide cylinder, guide mechanism and sewage treatment strengthening device |
| CN113461157B (en) * | 2021-05-08 | 2023-08-08 | 光大水务科技发展（南京）有限公司 | Activated sludge guide cylinder, guide mechanism and sewage treatment strengthening device |
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