High-efficiency sewage dephosphorization device

Abstract

The utility model discloses a high-efficiency sewage dephosphorization device, which relates to the technical field of sewage dephosphorization, and comprises a sewage filter tank and a chemical precipitation tank, the side edge of the sewage filter tank is provided with an observation window, and one side of the sewage filter tank far away from the observation window is provided with a conveying bracket; the chemical precipitation tank is arranged on the side, away from the sewage filtering tank, of the conveying support, a circulating pipe is arranged on the side, away from the conveying support, of the chemical precipitation tank, a biological precipitation tank is arranged on the side, away from the chemical precipitation tank, of the circulating pipe, and an adsorption precipitation tank is arranged on the side, away from the conveying pipe, of the biological precipitation tank. Wherein when the sewage is subjected to phosphorus removal, the sewage is filtered, and chemical and biological combined phosphorus removal is performed on the sewage after filtration is completed, so that the treatment of phosphorus in the sewage is completed, and after the removal of the sewage is completed, the phosphorus in the sewage is adsorbed, so that the phosphorus removal of the sewage is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage phosphorus removal, in particular to a high-efficiency sewage phosphorus removal device. Background Art

[0002] Sewage phosphorus removal refers to the removal of phosphorus from sewage by physical, chemical or biological methods to meet discharge standards or reuse requirements. Phosphorus is one of the main causes of eutrophication of water bodies, so sewage phosphorus removal is crucial to protecting water resources and the ecological environment. However, when treating sewage, phosphorus in sewage will remain when it is treated chemically and biologically. Therefore, a high-efficiency sewage phosphorus removal device is needed.

[0003] The application number retrieved is: CN201810427246.5, a dephosphorization equipment. The round rod and the stirring shaft are used for stirring, which can stir the neutralized sewage. The dirt deposited in the sewage is stirred and flows downstream and discharged from the outlet pipe, which can avoid blockage of the neutralization box and enhance the use effect of the equipment.

[0004] However, the existing sewage phosphorus removal equipment still has certain defects in actual use: when treating sewage, if it is only treated by chemical methods, it will make it impossible to completely adsorb the fixed phosphorus in the sewage. At the same time, the phosphorus removal efficiency is relatively low when only biological methods are used. At the same time, the phosphorus removal performance is greatly affected by the wastewater quality. For this reason, we propose a high-efficiency sewage phosphorus removal device. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a high-efficiency sewage phosphorus removal device, which aims to improve the problem that when sewage is treated only by chemical methods, it is impossible to completely adsorb the fixed phosphorus in the sewage, and the phosphorus removal efficiency is relatively low when only biological methods are used, and the phosphorus removal performance is greatly affected by the water quality of the wastewater.

[0006] The utility model realizes a high-efficiency sewage phosphorus removal device through the following technical scheme, including a sewage filter box and a chemical precipitation tank, wherein an observation window is arranged on the side of the sewage filter box, and a conveying bracket is arranged on the side of the sewage filter box away from the observation window, and the chemical precipitation tank is arranged on the side of the conveying bracket away from the sewage filter box, and a circulation pipe is arranged on the side of the chemical precipitation tank away from the conveying bracket, and a biological precipitation tank is arranged on the side of the circulation pipe away from the chemical precipitation tank, and an adsorption precipitation tank is arranged on the side of the biological precipitation tank away from the conveying pipe.

[0007] Furthermore, the sewage filter box includes a filter chamber, a first filter plate, a second filter plate, a third filter plate, a first partition plate, a water suction pipe and a first drain pipe, and the first filter plate is installed on both sides of the filter chamber, and a filter plate is installed below the first filter plate, and a third filter plate is arranged below the second filter plate, and a first partition plate is installed above the interior of the filter chamber, and a water suction pipe is arranged on the side of the first partition plate away from the first filter plate, and a storage chamber is arranged on the side of the water suction pipe away from the filter chamber, and a second drain pipe is installed below the inner wall of the storage chamber.

[0008] Furthermore, the sewage filter box also includes a mounting bracket, a sewage inlet pipe, a first water pump and a connecting pipe, and the sewage inlet pipe is installed on the top of the mounting bracket by bolts, and the first water pump is arranged on the side of the mounting bracket away from the observation window, and the connecting pipe is arranged on the side of the first water pump away from the mounting bracket.

[0009] Furthermore, the conveying bracket includes a first conveying pipe, a second conveying pipe, a supporting bracket and a second water pump, and a second conveying pipe is arranged on the side of the first conveying pipe away from the connecting pipe, and a second water pump is connected at the center of the first conveying pipe and the second conveying pipe, and a supporting bracket is installed below the second water pump.

[0010] Furthermore, the chemical precipitation tank includes a tank body, a feed box and a closing plate, and the feed box is arranged on a side of the tank body away from the conveying bracket, and the closing plate is arranged on a side of the feed box away from the tank body.

[0011] Furthermore, a drainage bracket is provided at the center of the biological sedimentation tank and the adsorption sedimentation tank, and a second drainage pipe is installed above the inner wall of the drainage bracket.

[0012] The utility model provides a high-efficiency sewage phosphorus removal device, which has the following beneficial effects:

[0013] When treating sewage, the sewage is pre-treated inside the sewage filter box, and the impurities and solid particles inside the sewage are separated by the first filter plate, the second filter plate and the third filter plate. After the sewage is filtered inside the sewage filter box, it is precipitated. At this time, the sewage is transported into the chemical precipitation tank through the conveying bracket. At this time, the sewage chemical precipitation tank performs phosphorus separation. The separated sewage enters the biological sedimentation tank. At this time, the sewage is treated inside the biological sedimentation tank, so that the remaining phosphorus components in the sewage are removed. After the removal is completed, the sewage is discharged into the adsorption sedimentation tank. The phosphorus in the sewage is multi-treated through the chemical sedimentation tank and the biological sedimentation tank. The specific contents are as follows:

[0014] An observation window is provided on the side of the sewage filter box, and a conveying bracket is provided on the side of the sewage filter box away from the observation window, and a chemical precipitation tank is provided on the side of the conveying bracket away from the sewage filter box, and a circulation pipe is provided on the side of the chemical precipitation tank away from the conveying bracket, and a biological sedimentation tank is provided on the side of the circulation pipe away from the chemical sedimentation tank, and an adsorption sedimentation tank is provided on the side of the biological sedimentation tank away from the conveying pipe, the sewage filter box includes a filter chamber, a first filter plate, a second filter plate, a third filter plate, a first partition plate, a water suction pipe and a first drain pipe, and the first filter plate is installed on both sides of the filter chamber, and a filter plate is installed below the first filter plate, and the third filter plate is provided below the second filter plate, and the first partition plate is installed above the interior of the filter chamber, and a water suction pipe is provided on the side of the first partition plate away from the first filter plate, and a storage chamber is provided on the side of the water suction pipe away from the filter chamber, and a second drain pipe is installed below the inner wall of the storage chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall front view structure of a high-efficiency sewage phosphorus removal device of the utility model;

[0016] Figure 2 It is a schematic structural diagram of a front cross-section of a sewage filter box of a high-efficiency sewage phosphorus removal device of the utility model;

[0017] Figure 3 It is a schematic structural diagram of a front cross section of a chemical precipitation tank of a high-efficiency sewage phosphorus removal device of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the front cross-section structure of a biological sedimentation tank of a high-efficiency sewage phosphorus removal device.

[0019] In the figure: 1. sewage filter box; 101. filter chamber; 2. observation window; 3. mounting bracket; 4. sewage inlet pipe; 5. first water pump; 6. connecting pipe; 7. delivery bracket; 8. chemical precipitation tank; 801. tank body; 9. circulation pipe; 10. drainage bracket; 11. first filter plate; 12. second filter plate; 13. third filter plate; 14. first partition plate; 15. suction pipe; 16. first drainage pipe; 17. first delivery pipe; 18. second delivery pipe; 19. supporting bracket; 20. feeding box; 21. closing plate; 22. biological sedimentation tank; 23. second drainage pipe; 24. adsorption sedimentation tank; 25. storage chamber; 26. second water pump. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1 - Figure 4 As shown, a high-efficiency sewage phosphorus removal device includes a sewage filter box 1 and a chemical precipitation tank 8, an observation window 2 is arranged on the side of the sewage filter box 1, and a conveying bracket 7 is arranged on the side of the sewage filter box 1 away from the observation window 2, and the chemical precipitation tank 8 is arranged on the side of the conveying bracket 7 away from the sewage filter box 1, and a flow pipe 9 is arranged on the side of the chemical precipitation tank 8 away from the conveying bracket 7, and a biological sedimentation tank 22 is arranged on the side of the flow pipe 9 away from the chemical sedimentation tank 8, and an adsorption sedimentation tank 24 is arranged on the side of the biological sedimentation tank 22 away from the conveying pipe. At this time, the sewage enters the sewage filter box 1 for treatment, and the conveying bracket 7 draws the sewage into the chemical precipitation tank 8 for treatment. At this time, after the sewage is treated in the chemical precipitation tank 8, the sewage is discharged into the biological sedimentation tank 22, and the sewage is adsorbed and precipitated in the biological sedimentation tank 22, and the drainage bracket 10 discharges the sewage from the adsorption sedimentation tank 24, thereby completing the treatment of the sewage.

[0022] The sewage filter box 1 includes a filter chamber 101, a first filter plate 11, a second filter plate 12, a third filter plate 13, a first partition plate 14, a water suction pipe 15 and a first drain pipe 16, and the first filter plates 11 are installed on both sides of the filter chamber 101, and a filter plate is installed below the first filter plate 11, and the third filter plate 13 is arranged below the second filter plate 12, and the first partition plate 14 is installed above the inside of the filter chamber 101, and the side of the first partition plate 14 away from the first filter plate 11 is provided with a water suction pipe 15, and the side of the water suction pipe 15 away from the filter chamber 101 is provided with a storage chamber 25, and the storage chamber 25 is provided with a first filter plate 11. A second drain pipe 23 is installed below the inner wall. When treating sewage, the sewage is first poured into the filter chamber 101 inside the sewage filter box 1, and the sewage is filtered through the first filter plate 11, the second filter plate 12 and the third filter plate 13, so that large impurities and solid particles inside the sewage are adsorbed. The filtered sewage is extracted through the suction pipe 15 connected to the first water pump 5. At this time, the sewage is discharged into the storage chamber 25 through the first drain pipe 16 connected to the first water pump 5, thereby completing the basic filtration of the sewage, and the sewage is precipitated inside the storage chamber 25.

[0023] The sewage filter box 1 also includes a mounting bracket 3, a sewage inlet pipe 4, a first water pump 5 and a connecting pipe 6, and the sewage inlet pipe 4 is installed on the top of the mounting bracket 3 by bolts, and the first water pump 5 is arranged on the side of the mounting bracket 3 away from the observation window 2, and the connecting pipe 6 is arranged on the side of the first water pump 5 away from the mounting bracket 3, and the sewage is discharged into the filter box through the sewage inlet pipe 4 above the mounting bracket 3. At this time, after the sewage is initially filtered, the sewage is pumped into the storage chamber 25 through the first water pump 5, the suction pipe 15 and the first drainage pipe 16, thereby completing the basic treatment of the sewage.

[0024] The delivery bracket 7 includes a first delivery pipe 17, a second delivery pipe 18, a support bracket 19 and a second water pump 26, and the second delivery pipe 18 is arranged on the side of the first delivery pipe 17 away from the connecting pipe 6, and the second water pump 26 is connected at the center of the first delivery pipe 17 and the second delivery pipe 18, and the support bracket 19 is installed below the second water pump 26, and the delivery bracket 7 lifts the second water pump 26 through the support bracket 19, at this time, the second water pump 26 pumps the sewage into the first delivery pipe 17 through the second delivery pipe 18, and discharges it into the chemical precipitation tank 8 through the second delivery pipe 18.

[0025] The chemical precipitation tank 8 includes a tank body 801, a feed box 20 and a closing plate 21, and the feed box 20 is provided on the side of the tank body 801 away from the conveying bracket 7, and the closing plate 21 is provided on the side of the feed box 20 away from the tank body 801. At this time, when the sewage enters the tank body 801 inside the chemical precipitation tank 8, the chemical agent inside the feed box 20 is put into the tank body 801. At this time, the sewage contacts the chemical agent, and the phosphorus inside the sewage combines to become insoluble compounds, thereby completing the separation of the insoluble compounds and water, thereby realizing the removal of phosphorus.

[0026] A drainage bracket 10 is provided at the center of the biological sedimentation tank 22 and the adsorption sedimentation tank 24, and a second drainage pipe 23 is installed above the inner wall of the drainage bracket 10. At this time, the biological sedimentation tank 22 absorbs and releases phosphorus through microorganisms working alternately under anaerobic and aerobic conditions, and finally removes phosphorus from the sewage in the form of residual sludge, so that the condensable impurities in the sewage are completely separated from the water. At the same time, the sewage is discharged into the adsorption sedimentation tank 24 through the drainage bracket 10. At this time, when the sewage is discharged into the adsorption sedimentation tank 24, the sewage contacts with the activated carbon, iron oxide, zeolite, etc. in the adsorption sedimentation tank 24. At this time, the adsorbents with strong adsorption capacity such as activated carbon, iron oxide, zeolite, etc. adsorb the phosphorus in the wastewater to the surface of the adsorbent, thereby completing the removal of phosphorus in the wastewater.

[0027] In summary, the utility model uses a sewage filter box 1 and a chemical precipitation tank 8. At this time, the sewage is continuously discharged from the sewage filter box 1 through the sewage inlet pipe 4. At this time, the sewage is separated by the first filter plate 11, the second filter plate 12 and the third filter plate 13 inside the filter box, so that impurities and solid particles in the sewage are separated. At this time, the filtered sewage is sucked in through the suction pipe 15 connected to the first water pump 5, and the first drainage pipe 16 connected to the second water pump 26 discharges the sewage into the storage chamber 25. At this time, the sewage is precipitated inside the storage chamber 25. At this time, the sewage is discharged into the chemical precipitation tank 8 through the drainage bracket 10. At this time, the sewage is mixed with the chemical inside the tank body 801. The wastewater is contacted with chemical agents, at which time the phosphorus in the wastewater reacts with the chemical agents to form insoluble metal phosphide precipitates. At this time, the separated precipitates are discharged through the bottom of the tank body 801, and the wastewater is discharged into the biological sedimentation tank 22 through the circulation pipe 9. At this time, the wastewater is used by microorganisms inside the biological sedimentation tank 22, which work alternately under anaerobic and aerobic conditions to absorb and release phosphorus, and finally remove the phosphorus from the system in the form of residual sludge. When the treatment of phosphorus in the wastewater is completed, the wastewater is discharged into the adsorption sedimentation tank 24 through the drainage bracket 10. At this time, the wastewater adsorbs the residual phosphorus in the wastewater inside the adsorption sedimentation tank 24, thereby completing the treatment of the wastewater.

Claims

1. A high-efficiency sewage phosphorus removal device, comprising a sewage filter box (1) and a chemical precipitation tank (8), characterized in that: An observation window (2) is provided on the side of the sewage filter box (1), and a conveying bracket (7) is provided on the side of the sewage filter box (1) away from the observation window (2), and the chemical precipitation tank (8) is provided on the side of the conveying bracket (7) away from the sewage filter box (1), and a circulation pipe (9) is provided on the side of the chemical precipitation tank (8) away from the conveying bracket (7), and a biological precipitation tank (22) is provided on the side of the circulation pipe (9) away from the chemical precipitation tank (8), and an adsorption precipitation tank (24) is provided on the side of the biological precipitation tank (22) away from the conveying pipe.

2. A high-efficiency sewage phosphorus removal device according to claim 1, characterized in that: The sewage filter box (1) comprises a filter chamber (101), a first filter plate (11), a second filter plate (12), a third filter plate (13), a first partition plate (14), a water suction pipe (15) and a first drainage pipe (16), wherein the first filter plates (11) are installed on both sides of the filter chamber (101), a filter plate is installed below the first filter plate (11), and the third filter plate (13) is arranged below the second filter plate (12), and the first partition plate (14) is installed above the interior of the filter chamber (101), and a water suction pipe (15) is arranged on a side of the first partition plate (14) away from the first filter plate (11), and a storage chamber (25) is arranged on a side of the water suction pipe (15) away from the filter chamber (101), and a second drainage pipe (23) is installed below the inner wall of the storage chamber (25).

3. The high-efficiency sewage phosphorus removal device according to claim 1 is characterized in that: The sewage filter box (1) further comprises a mounting bracket (3), a sewage inlet pipe (4), a first water pump (5) and a connecting pipe (6), wherein the sewage inlet pipe (4) is mounted on the top of the mounting bracket (3) by means of bolts, and the first water pump (5) is arranged on a side of the mounting bracket (3) away from the observation window (2), and the connecting pipe (6) is arranged on a side of the first water pump (5) away from the mounting bracket (3).

4. The high-efficiency sewage phosphorus removal device according to claim 1 is characterized in that: The delivery bracket (7) comprises a first delivery pipe (17), a second delivery pipe (18), a support bracket (19) and a second water pump (26), and the second delivery pipe (18) is arranged on a side of the first delivery pipe (17) away from the connecting pipe (6), and the second water pump (26) is connected at the center of the first delivery pipe (17) and the second delivery pipe (18), and the support bracket (19) is installed below the second water pump (26).

5. The high-efficiency sewage phosphorus removal device according to claim 1 is characterized by: The chemical precipitation tank (8) comprises a tank body (801), a feed box (20) and a closing plate (21), and the feed box (20) is arranged on a side of the tank body (801) away from the conveying bracket (7), and the closing plate (21) is arranged on a side of the feed box (20) away from the tank body (801).

6. A high-efficiency sewage phosphorus removal device according to claim 1, characterized in that: A drainage bracket (10) is provided at the center of the biological sedimentation tank (22) and the adsorption sedimentation tank (24), and a second drainage pipe (23) is installed above the inner wall of the drainage bracket (10).

Images