CN211310963U - Electrolytic phosphorus removal device - Google Patents
Electrolytic phosphorus removal device Download PDFInfo
- Publication number
- CN211310963U CN211310963U CN201922215688.6U CN201922215688U CN211310963U CN 211310963 U CN211310963 U CN 211310963U CN 201922215688 U CN201922215688 U CN 201922215688U CN 211310963 U CN211310963 U CN 211310963U
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- Prior art keywords
- electrolytic
- electrolytic tank
- phosphorus removal
- removal device
- plate groove
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 29
- 239000011574 phosphorus Substances 0.000 title claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 5
- 238000005273 aeration Methods 0.000 claims description 19
- 244000309464 bull Species 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000010970 precious metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000010287 polarization Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 239000010840 domestic wastewater Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 239000010802 sludge Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000010865 sewage Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- 238000005188 flotation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses an electrolytic phosphorus removal device, including the electrolysis case: a water inlet is formed in one side wall of the electrolytic tank, and a water outlet is formed in the other side wall of the electrolytic tank; an upper polar plate groove and a lower polar plate groove are arranged in the electrolytic tank from top to bottom, a plurality of vertically parallel polar plates are arranged between the upper polar plate groove and the lower polar plate groove, and the polar plates are respectively connected with the cathode and the anode of a direct current power supply in a staggered manner; the direct current power supply is connected with an electrode conversion device; the top of the electrolytic tank is provided with a stirring assembly, and the bottom of the electrolytic tank is provided with an emptying pipe. The utility model provides an electrolytic dephosphorization device, which has high dephosphorization efficiency, is used for a domestic wastewater deep dephosphorization workshop section, and has the dephosphorization efficiency of more than 90 percent; the stirring of the stirring assembly generates stronger plug flow and turbulence effect, so that the solution in the electrolytic tank can be fully mixed and uniformly distributed, the concentration polarization between the electrode plates is effectively reduced, the service life of the electrode plates is prolonged, and the durability of the electrolytic phosphorus removal device is improved.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an electrolytic phosphorus removal device.
Background
The removal of phosphorus from wastewater has been a treatment problem, and biological methods and chemical precipitation methods and their combination are commonly used for treatment. In the biological treatment process, phosphorus is absorbed or excessive phosphorus absorption is enhanced to remove most of the phosphorus in the biological assimilation process, but the phosphorus removal efficiency is not stable enough and cannot meet the increasingly strict sewage discharge standard; the chemical precipitation method is widely applied to various sewage treatment processes as an effective physical and chemical means, has the characteristics of high efficiency, stable operation and the like, but a common flocculating agent such as aluminum salt causes secondary pollution, the produced sludge has large amount and high water content, and the investment and operation cost are increased.
The electrolysis method is an efficient sewage dephosphorization method for small-sized sewage treatment equipment, and has the advantages of small floor area, simple operation, comprehensive electric flocculation, precipitation and air flotation functions, good dephosphorization effect, strong selectivity and short hydraulic retention time, but the anode in the electrode is easy to passivate, metal oxide is generated on the surface, and the stability of current is influenced, so that the reaction rate is influenced, the dephosphorization efficiency is reduced, and simultaneously, because a large amount of flocculent precipitates are generated in the reaction process, the flocculent precipitates are deposited at the bottom of the electrolytic tank to form sludge, the sludge is inconvenient to remove, the pollution and the blockage of the equipment are easily caused, the movement of a water body in the electrolytic tank is easily blocked, and the reaction rate is influenced due to the uneven distribution of the solution in the electrolytic tank.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.
In order to solve the defects of the prior art, the utility model provides an electrolytic phosphorus removal device, which comprises an electrolytic tank:
a water inlet is formed in one side wall of the electrolytic tank, and a water outlet is formed in the other side wall of the electrolytic tank; an upper polar plate groove and a lower polar plate groove are arranged in the electrolytic tank from top to bottom, a plurality of vertically parallel polar plates are arranged between the upper polar plate groove and the lower polar plate groove, and the polar plates are respectively connected with the cathode and the anode of a direct current power supply in a staggered manner; the direct current power supply is connected with an electrode conversion device; the top of the electrolytic tank is provided with a stirring assembly, and the bottom of the electrolytic tank is provided with an emptying pipe;
still include a pair of desilt subassembly, the desilt subassembly symmetry is located electrolysis box bottom both sides, the desilt subassembly includes bull stick, driving motor, conveying blade and a plurality of scraper blade, the bull stick with driving motor's output shaft, the conveying blade spiral is around on the bull stick, the scraper blade is installed on the bull stick.
Preferably, the thickness of each electrode plate is 10mm, and the distance between two adjacent electrode plates is 20 mm.
Preferably, the electrode switching device controls the switching of the cathode and the anode of the direct current power supply every 1 min.
Preferably, the electrode plate is made of a mixed material consisting of iron, aluminum and rare and precious metals.
Preferably, the stirring assembly comprises a stirring rod and a stirring motor, the stirring rod is in an inverted T shape, the top of the stirring rod is connected with an output shaft of the stirring motor, a plurality of auxiliary rods are arranged at two ends of the stirring rod, and the surfaces of the stirring rod and the auxiliary rods are in spiral structures.
Preferably, an aeration pipe is arranged at the bottom in the electrolytic tank and is connected with the air outlet end of the air pump through an air conveying pipe; the bottom of the aeration pipe is provided with a plurality of aeration holes.
Preferably, the scraper comprises a connecting section, a bending section and a horizontal section, one end of the connecting section is fixed on the rotating rod, the other end of the connecting section is connected with the horizontal section through the bending section, and the side surface of the horizontal section is in contact with the bottom wall of the electrolytic tank.
Preferably, the end of the horizontal section is of a pointed structure.
The utility model discloses at least, include following beneficial effect: the electrolytic dephosphorization device has simple structure and high dephosphorization efficiency, is used for the deep dephosphorization section of the domestic wastewater, and has the dephosphorization efficiency of more than 90 percent; the stirring component generates stronger plug flow and turbulence effect by stirring, so that the solution in the electrolytic tank can be fully mixed and uniformly distributed, the concentration polarization between the electrode plates is effectively reduced, the service life of the electrode plates is prolonged, and the durability of the electrolytic phosphorus removal device is improved; the electrode conversion device alternately changes the positive electrode and the negative electrode of the direct-current power supply, so that the concentration polarization phenomenon of liquid around the electrode plate can be greatly reduced, the passivation degree of the electrode plate serving as the anode is reduced, the efficient and stable operation of the electrolytic phosphorus removal device is ensured, and the electrolytic phosphorus removal efficiency is improved; and the desilting component effectively removes sludge deposited at the bottom in the electrolytic tank, so that the operation is convenient, and the stable operation of the electrolytic dephosphorization device is ensured.
Drawings
FIG. 1 is a schematic view of the electrolytic phosphorus removal device of the present invention.
FIG. 2 is a schematic diagram of the distribution structure of the electrolytic plates of the present invention.
Fig. 3 is a schematic view of the scraper structure of the present invention.
Reference numerals: 1-an electrolytic tank, 11-a water inlet, 12-a water outlet, 13-an emptying pipe, 2-an upper polar plate tank, 3-a lower polar plate tank, 4-a polar plate, 5-a direct current power supply, 6-an electrode conversion device, 7-a stirring assembly, 71-a stirring rod, 72-a stirring motor, 73-an auxiliary rod, 8-an aeration pipe, 81-an air pipe, 82-an air pump, 83-an aeration hole, 9-a desilting assembly, 91-a rotating rod, 92-a driving motor, 93-a conveying blade, 94-a scraper, 941-a connecting section, 942-a bending section and 943-a horizontal section.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
FIGS. 1 to 3 show an electrolytic phosphorus removal device of the present invention, which comprises an electrolytic tank 1:
a water inlet 11 is formed in one side wall of the electrolytic tank 1, and a water outlet 12 is formed in the other side wall of the electrolytic tank 1; an upper polar plate groove 2 and a lower polar plate groove 3 are arranged in the electrolytic tank 1 from top to bottom, a plurality of vertical parallel polar plates 4 are arranged between the upper polar plate groove 2 and the lower polar plate groove 3, and the polar plates 4 are respectively connected with the cathode and the anode of a direct current power supply 5 in a staggered manner; the direct current power supply 5 is connected with an electrode conversion device 6; the top of the electrolytic tank 1 is provided with a stirring assembly 7, and the bottom of the electrolytic tank 1 is provided with an emptying pipe 13;
still include a pair of desilt subassembly 9, the 9 symmetric positions of desilt subassembly 1 bottom both sides of electrolytic tank, desilt subassembly 9 includes bull stick 91, driving motor 92, conveying blade 93 and a plurality of scraper blade 94, bull stick 91 with driving motor 92's output shaft, conveying blade 93 spiral around on the bull stick 91, scraper blade 94 is installed on the bull stick 91.
In the technical scheme, the electrolytic dephosphorization device has simple structure and high dephosphorization efficiency, is used for a domestic wastewater deep dephosphorization section, and has the dephosphorization efficiency of more than 90 percent; the stirring component 7 can generate stronger plug flow and turbulence effect by stirring, so that the solution in the electrolytic tank can be fully mixed and uniformly distributed, the concentration polarization between the electrode plates 4 is effectively reduced, the service life of the electrode plates 4 is prolonged, and the durability of the electrolytic phosphorus removal device is improved; the electrode conversion device 6 alternately changes the positive electrode and the negative electrode of the direct-current power supply 5, so that the concentration polarization phenomenon of liquid around the electrode plate 4 can be greatly reduced, the passivation degree of the electrode plate 4 serving as the anode is reduced, the efficient and stable operation of the electrolytic phosphorus removal device is ensured, and the electrolytic phosphorus removal efficiency is improved; the sludge removing component 9 effectively removes the sludge deposited at the bottom in the electrolytic tank 1, and the operation is convenient.
The working principle is as follows: the waste water enters the electrolytic tank 1 through the water inlet 11, the working voltage of the device system is 24V, the electrode conversion device 6 regularly and alternately changes the positive and negative electrodes of the direct current power supply 5, the positive and negative polarities of the electrode plates 4 are not changed continuously, simultaneously, the stirring assembly 7 is started, and the nascent state iron and aluminum are mixed with PO in the waste water4 3+Sediment is formed so as to remove phosphorus in the wastewater, hydrogen generated in the electrolysis process generates an air flotation effect, meanwhile, indissolvable solid particles in the wastewater are brought to the surface of a water body along with the hydrogen to be removed, and the sewage after phosphorus removal is discharged through a water outlet 12; the driving motor 92 is started, the scraper 94 and the conveying blade 93 synchronously rotate in the rotating process of the rotating rod 91, and the scraper 94 loosens to scrape the insoluble solid particles on the bottom wall of the electrolytic tank to formThe conveying blades 93 push the fallen sludge to the pipe orifice of the emptying pipe 13, and finally the sludge is discharged to a sludge storage pool through the emptying pipe 13 and finally is transported outwards for dehydration and disposal.
In another example, each of the electrode plates 4 has a thickness of 10mm, and a distance between two adjacent electrode plates 4 is 20 mm. By adopting the scheme, the better electrolytic dephosphorization effect is obtained.
In another example, the electrode switching device 6 controls the anode and cathode of the dc power supply 5 to switch every 1 min. By adopting the scheme, the consumption of the electrode plates 4 is more uniform, the concentration polarization of liquid between the two electrode plates 4 is greatly reduced, and the service life of the electrode plates 4 is greatly prolonged.
In another example, the electrode plate 4 is made of a mixed material of iron, aluminum and rare and precious metals. By adopting the scheme, the electrode plate 4 is a composite material electrode plate which is processed by compounding iron, aluminum and rare noble metals in proportion, has stronger conductivity and higher strength, is difficult to passivate and resists corrosion.
In another example, the stirring assembly 7 includes a stirring rod 71 and a stirring motor 72, the top of the stirring rod 71 in an inverted T shape is connected to an output shaft of the stirring motor 72, a plurality of auxiliary rods 73 are disposed at two ends of the stirring rod 71, and the surfaces of the stirring rod 71 and the auxiliary rods 73 are both in a spiral structure.
In the technical scheme, the stirring motor 72 drives the stirring rod 71 to rotate, and the stirring rod 71 and the auxiliary rod 73 are matched together to stir the solution in the electrolytic tank 1, so that the solution can be fully mixed and uniformly distributed; the surfaces of the stirring rod 71 and the auxiliary rod 73 are both in a spiral structure, so that in the rotating process of the stirring rod 71 and the auxiliary rod 73, the solution generates stronger plug flow and turbulence, and the mixing effect is enhanced; and the stirring rod 71 is arranged 200-500 mm below the liquid level, so that the solution is mixed more uniformly, and meanwhile, the hydraulic scouring effect generated by strong stirring can passivate the electrode plate 4, so that the service life of the electrode plate 4 is prolonged by half.
In another example, an aeration pipe 8 is arranged at the bottom in the electrolytic tank 1, and the aeration pipe 8 is connected with the air outlet end of an air pump 82 through an air conveying pipe 81; the bottom of the aeration pipe 8 is provided with a plurality of aeration holes 83. By adopting the scheme, the aeration pipe 8 blows clean air into the electrolytic tank 1 through the aeration holes 83, bubbles generated by the air move from bottom to top between the two electrode plates 4, on one hand, the liquid flow between the two electrode plates 4 is promoted, the liquid is uniformly mixed, the concentration polarization of the liquid between the two electrode plates 4 is reduced, on the other hand, the air flotation effect is further enhanced by the bubbles in the upward floating process, and the bubbles float the insoluble particles in the water to the liquid level, which is beneficial to enhancing the electrolytic dephosphorization efficiency; meanwhile, the aeration holes 83 are formed in the bottom of the aeration pipe 8, so that the problem that insoluble solid precipitates fall into the aeration holes 83 to cause blockage is effectively avoided, and the normal work of the aeration pipe 8 is guaranteed.
In another example, the scraper 94 comprises a connecting section 941, a bent section 942 and a horizontal section 943, one end of the connecting section 941 is fixed on the rotating rod 91, the other end of the connecting section 941 is connected with the horizontal section 943 through the bent section 942, the side surface of the horizontal section 943 is in contact with the bottom wall of the electrolytic tank 1, and the end of the horizontal section 943 is in a pointed structure. With this arrangement, the bending direction of the bending section 942 coincides with the rotation direction of the rotary lever 91, so that the scrapers 94 effectively scrape off sludge adhering to the bottom wall of the electrolytic tank 1.
While the embodiments of the invention have been described above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications can be easily made by those skilled in the art without departing from the general concept defined by the claims and their equivalents, and it is therefore not limited to the specific details and illustrations shown and described herein, and it is obvious that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. An electrolytic phosphorus removal device, characterized by comprising an electrolytic tank (1):
a water inlet (11) is formed in one side wall of the electrolytic tank (1), and a water outlet (12) is formed in the other side wall of the electrolytic tank (1); an upper polar plate groove (2) and a lower polar plate groove (3) are arranged in the electrolytic tank (1) from top to bottom, a plurality of vertical and parallel polar plates (4) are arranged between the upper polar plate groove (2) and the lower polar plate groove (3), and the polar plates (4) are respectively connected with the cathode and the anode of a direct current power supply (5) in a staggered manner; the direct current power supply (5) is connected with an electrode conversion device (6); the top of the electrolytic tank (1) is provided with a stirring assembly (7), and the bottom of the electrolytic tank (1) is provided with an emptying pipe (13);
still include a pair of desilt subassembly (9), desilt subassembly (9) symmetric position in electrolysis box (1) bottom both sides, desilt subassembly (9) include bull stick (91), driving motor (92), transport blade (93) and a plurality of scraper blade (94), bull stick (91) with the output shaft of driving motor (92), transport blade (93) spiral encircle in on bull stick (91), scraper blade (94) are installed on bull stick (91).
2. An electrolytic phosphorus removal device according to claim 1, wherein each electrode plate (4) has a thickness of 10mm, and the distance between two adjacent electrode plates (4) is 20 mm.
3. An electrolytic phosphorus removal device according to claim 1, wherein the electrode switching device (6) controls the anode and cathode of the DC power supply (5) to switch every 1 min.
4. An electrolytic phosphorus removal apparatus in accordance with claim 1, wherein the electrode plates (4) are made of a mixed material of iron, aluminum and rare and precious metals.
5. The electrolytic phosphorus removal device according to claim 1, wherein the stirring assembly (7) comprises a stirring rod (71) and a stirring motor (72), the top of the stirring rod (71) in the shape of an inverted T is connected with an output shaft of the stirring motor (72), a plurality of auxiliary rods (73) are arranged at both ends of the stirring rod (71), and the surfaces of the stirring rod (71) and the auxiliary rods (73) are both in a spiral structure.
6. The electrolytic phosphorus removal device according to claim 1, wherein an aeration pipe (8) is arranged at the bottom in the electrolytic tank (1), and the aeration pipe (8) is connected with the air outlet end of an air pump (82) through an air conveying pipe (81); the bottom of the aeration pipe (8) is provided with a plurality of aeration holes (83).
7. An electrolytic phosphorus removal device according to claim 1, wherein the scraper (94) comprises a connecting section (941), a bending section (942) and a horizontal section (943), one end of the connecting section (941) is fixed on the rotating rod (91), the other end of the connecting section is connected with the horizontal section (943) through the bending section (942), and the side surface of the horizontal section (943) is in contact with the bottom wall of the electrolytic tank (1).
8. An electrolytic phosphorus removal device as claimed in claim 7, wherein the horizontal segment (943) terminates in a pointed configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215688.6U CN211310963U (en) | 2019-12-11 | 2019-12-11 | Electrolytic phosphorus removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215688.6U CN211310963U (en) | 2019-12-11 | 2019-12-11 | Electrolytic phosphorus removal device |
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| Publication Number | Publication Date |
|---|---|
| CN211310963U true CN211310963U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922215688.6U Expired - Fee Related CN211310963U (en) | 2019-12-11 | 2019-12-11 | Electrolytic phosphorus removal device |
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| Country | Link |
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| CN (1) | CN211310963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116789287A (en) * | 2022-02-24 | 2023-09-22 | 陈成 | High concentration organic chemical industry waste water electric catalytic reactor |
-
2019
- 2019-12-11 CN CN201922215688.6U patent/CN211310963U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116789287A (en) * | 2022-02-24 | 2023-09-22 | 陈成 | High concentration organic chemical industry waste water electric catalytic reactor |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |