Wastewater dephosphorization treatment device

Abstract

The utility model provides a wastewater dephosphorization treatment device, which belongs to the technical field of wastewater treatment, and comprises a container, a barrel, a coagulant distributor, a dephosphorization agent distributor, an inlet water distributor, a flocculant distributor, a stirring and lifting unit and a suspended matter deposition unit, a settlement area is formed between the cylinder body and the container; the coagulant distributor, the phosphorus removal agent distributor, the water inlet distributor and the flocculant distributor are all arranged in the reaction zone; the stirring and lifting unit is arranged in the reaction zone; the suspended matter deposition unit is used for depositing sewage flowing out of the barrel and discharging clear water. According to the device, coagulation, flocculation and precipitation processes are combined in one reactor, so that the dosing and mixing can be realized, the mud-water separation and precipitation processes can be completed, the internal space of equipment is fully utilized, no dead angle exists, the integration is high, the occupied area is reduced, the process flow is shortened, and the number of the equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment technical field, more specifically, it relates to a wastewater phosphorus removal treatment device. BACKGROUND

[0002] Coagulation sedimentation method is the phosphorus removal process commonly used in wastewater treatment, and the traditional coagulation sedimentation process usually adopts the process flow of coagulation + flocculation + sedimentation, coagulant and phosphorus removal agent are added in the coagulation tank, flocculating agent is added in the flocculation tank, phosphorus in sewage reacts with reagent to generate flocculation sediment, and enters the subsequent sedimentation tank, and mud-water separation is carried out in the sedimentation tank, and the phosphorus in sludge is discharged with sludge to achieve the purpose of phosphorus removal. In the application process of the traditional coagulation sedimentation process, the treatment process is long, the land area is large, the equipment is much, and the energy consumption is large. CONTENT

[0003] The utility model aims at providing a wastewater phosphorus removal treatment device, and solves the problems of large land area caused by long process flow of traditional coagulation sedimentation process and large energy consumption caused by much equipment.

[0004] In order to realize the above-mentioned purpose, the utility model provides a wastewater phosphorus removal treatment device, which comprises:

[0005] The container is provided with a first sludge discharge port at the bottom, and the top of the container forms a water outlet end;

[0006] The barrel is open at the top and bottom and is arranged in the container, a reaction zone is formed in the barrel, and a settling zone is formed between at least part of the barrel and the container;

[0007] Coagulant distributor, phosphorus removal agent distributor and water inlet distributor, the coagulant distributor, the phosphorus removal agent distributor and the water inlet distributor are all arranged in the lower part of the reaction zone;

[0008] The flocculating agent distributor is arranged in the middle part of the reaction zone;

[0009] The stirring lifting unit is arranged in the reaction zone;

[0010] The suspended matter deposition unit is arranged in the container and outside the upper part of the barrel, and is used for depositing suspended matter of the wastewater flowing out of the upper part of the barrel.

[0011] Optionally, the suspended matter deposition unit comprises:

[0012] The inclined pipe part is arranged around the upper part of the barrel, a plug flow zone is formed between the inclined pipe part and part of the barrel, and a settling zone is formed between another part of the barrel and the container.

[0013] Optionally, the suspension deposition unit further comprises:

[0014] an outlet channel, an upper portion of the outlet channel being in communication with the outlet end and being provided with an adjustable outlet weir.

[0015] Optionally, the stirring lifting unit comprises:

[0016] a motor;

[0017] a transmission shaft, the transmission shaft being in driving connection with the motor;

[0018] a first stirring paddle, the first stirring paddle being installed on the transmission shaft and being arranged between the flocculant distributor and the coagulant distributor;

[0019] a second stirring paddle, the second stirring paddle being installed on the transmission shaft and being arranged above the flocculant distributor.

[0020] Optionally, a hopper is arranged in the lower portion of the container and is tapered from top to bottom.

[0021] the first sludge discharge port is arranged at the bottom of the hopper.

[0022] Optionally, magnetic powder is arranged in the container.

[0023] Optionally, the wastewater phosphorus removal treatment device further comprises:

[0024] a magnetic powder recovery device, the magnetic powder recovery device being provided with a sludge inlet, a magnetic powder discharge port and a second sludge discharge port, the sludge inlet of the magnetic powder recovery device being connected with the first sludge discharge port, and the magnetic powder discharge port of the magnetic powder recovery device being connected with the container.

[0025] Optionally, the magnetic powder recovery device is arranged at the top of the container.

[0026] a sludge lifting pump is arranged between the sludge inlet of the magnetic powder recovery device and the first sludge discharge port.

[0027] Optionally, the container is provided with a plurality of supporting legs.

[0028] Optionally, the coagulant distributor, the phosphorus removal agent distributor and the water inlet distributor are arranged in sequence from top to bottom.

[0029] The utility model discloses a beneficial effect lies in: provide a wastewater phosphorus removal treatment device, include: container, cylinder, coagulant distributor, phosphorus removal agent distributor, inlet distributor, flocculating agent distributor, stirring and lifting unit, suspended solid deposition unit, cylinder sets up in the container, forms the reaction zone in the cylinder, and forms the settlement zone between the cylinder and the container, coagulant distributor, phosphorus removal agent distributor, inlet distributor and flocculating agent distributor all set up in the reaction zone, stirring and lifting unit set up in the reaction zone, suspended solid deposition unit is used to deposit and exports clear water to the container to the sewage that the cylinder upper opening flows out, this wastewater phosphorus removal treatment device combines coagulation, flocculation and sedimentation process in a reactor, can realize dosing mixing, can also complete sludge water separation and sedimentation process, fully utilizes the internal space of equipment, no dead angle, integration is high, reduces the floor area, shortens the technological process, reduces the number of moving equipment, and simultaneously has certain impact resistance, even if the water quality of incoming water appears fluctuation, can guarantee the stable operation of process.

[0030] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and other objects, features and advantages of the utility model will become more apparent from the following detailed description of exemplary embodiments of the utility model, taken in conjunction with the accompanying drawings in which, in the utility model exemplary embodiments, same reference numerals generally represent same components.

[0032] Figure 1 The utility model discloses a schematic structural diagram of wastewater phosphorus removal treatment device according to one embodiment of the utility model is shown.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, reaction zone;

[0035] 2, settlement zone;

[0036] 3, plug flow zone;

[0037] 4, container;41, hopper;42, first sludge discharge port;43, support leg;

[0038] 5, cylinder;51, coagulant distributor;52, phosphorus removal agent distributor;53, inlet distributor;54, flocculating agent distributor;

[0039] 6, stirring and lifting unit;61, motor;62, transmission shaft;63, second stirring paddle;64, first stirring paddle;

[0040] 7, suspended solid deposition unit;71, inclined pipe part;72, clear water collection part;73, outlet channel;74, adjustable outlet weir;

[0041] 8, magnetic powder collector; 81, sludge inlet; 82, magnetic powder outlet; 83, second sludge outlet; 84, sludge lifting pump. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be more thoroughly and completely conveyed to those skilled in the art, and the scope of the present application will be fully conveyed to those skilled in the art.

[0043] As shown in Figure 1 The present embodiment provides a wastewater phosphorus removal treatment device, which comprises:

[0044] A container 4 is provided, and the bottom of the container 4 is provided with a first sludge outlet 42, and the top of the container 4 forms a water outlet end;

[0045] A cylinder 5 is provided, and the cylinder 5 is open at the top and bottom and is arranged in the container 4, a reaction zone 1 is formed in the cylinder 5, and at least part of the area between the cylinder 5 and the container 4 forms a sedimentation zone 2;

[0046] A coagulant distributor 51, a phosphorus removal agent distributor 52, and a water inlet distributor 53 are provided, and the coagulant distributor 51, the phosphorus removal agent distributor 52, and the water inlet distributor 53 are all arranged at the lower part of the reaction zone 1;

[0047] A flocculant distributor 54 is provided, and the flocculant distributor 54 is arranged at the middle part of the reaction zone 1;

[0048] A stirring and lifting unit 6 is provided, and the stirring and lifting unit 6 is arranged in the reaction zone 1;

[0049] A suspended matter deposition unit 7 is provided, and the suspended matter deposition unit 7 is arranged in the container 4 and outside the upper part of the cylinder 5, and is used for suspended matter deposition of wastewater flowing out of the upper part of the cylinder 5.

[0050] Specifically, the flocculant distributor 54, the coagulant distributor 51, the phosphorus removal agent distributor 52 and the water inlet distributor 53 are arranged in the reaction zone 1 in sequence, and the water and the agents are uniformly distributed and fully contacted to improve the mass transfer efficiency, and the sewage completes the coagulation and flocculation process in the flow process. The stirring and lifting unit 6 is arranged in the reaction zone 1 to make the reaction more sufficient, and the sewage forms an internal circulation under the lifting action of the stirring and lifting unit 6, which does not need to rely on the power of the reflux pump to realize, so the number of moving devices is small and the energy consumption is low. The suspended solids deposition unit 7 is arranged at the upper part of the cylinder 5, the effluent from the reaction zone 1 enters the suspended solids deposition unit 7, and the sewage completes deposition in the suspended solids deposition unit 7 to obtain clean water, and the clean water is discharged out of the container 4. Part of the sludge in the sedimentation zone 2 is deposited at the bottom of the container 4 by gravity, and another part of the sludge in the sedimentation zone 2 is refluxed to the reaction zone 1 under the action of the stirring and lifting unit 6, the added agents are fully reacted through reflux, which plays a coagulation aid effect, improves the sedimentation performance of alum flowers, and saves the amount of agents. The wastewater phosphorus removal treatment device combines the coagulation, flocculation and sedimentation processes in one reactor, can realize the mixing of adding agents, and can complete the sludge-water separation and sedimentation process, fully utilizes the internal space of the device, has no dead angle, is highly integrated, reduces the floor area, shortens the process flow, reduces the number of moving devices, and has a certain impact resistance. Even if the water quality fluctuates, the process can also be stably operated.

[0051] In the embodiment, the suspended solids deposition unit 7 comprises:

[0052] The inclined pipe part 71 is arranged around the upper part of the cylinder 5, the inclined pipe part 71 and part of the cylinder 5 form the plug flow zone 3, and the other part of the cylinder 5 and the cylinder 5 form the sedimentation zone 2.

[0053] In the embodiment, the clean water collecting part 72 is connected above the inclined pipe part 71 and is used to collect the clean water flowing out of the inclined pipe part 71.

[0054] Specifically, the inclined pipe part 71 is of an existing structure, the sewage containing a small amount of suspended solids passes through the inclined pipe part 71, the suspended solids are deposited on the filler of the inclined pipe part 71, and the clean water enters the clean water collecting part 72.

[0055] Optionally, the effluent channel 73 is further included, the upper part of the effluent channel 73 is in communication with the upper part of the clean water collecting part 72 and is provided with an adjustable effluent weir 74.

[0056] Specifically, the effluent channel 73 and the effluent weir 74 adopt an existing structure and can discharge the clean water outwards.

[0057] In the embodiment, the stirring and lifting unit 6 comprises:

[0058] The motor 61;

[0059] The transmission shaft 62 is in transmission connection with the motor 61.

[0060] A first stirring paddle 64 is installed on the transmission shaft 62 and arranged between the flocculant distributor 54 and the coagulant distributor 51;

[0061] A second stirring paddle 63 is installed on the transmission shaft 62 and arranged above the flocculant distributor 54.

[0062] Optionally, the lower part of the container 4 is provided with a hopper 41 which is tapered from top to bottom;

[0063] The first sludge outlet 42 is arranged at the bottom of the hopper 41.

[0064] Optionally, the container 4 is provided with magnetic powder.

[0065] Specifically, the magnetic powder is added in the container 4, the magnetic powder is used as the nucleus of the floc, the flocculant is added, and through the effects of flocculation, adsorption, and bridging, the small suspended solids or colloidal particles in the water are combined with the magnetic powder with extremely small particle size, the collision of the colloidal particles or suspended particles is destabilized to form flocs, the agglomeration of the flocs is promoted to increase the size and the ability to capture pollutants, and the flocs with relatively high density also greatly increase the settling speed, thereby accelerating the solid-liquid separation.

[0066] Optionally, the wastewater phosphorus removal treatment device further comprises:

[0067] A magnetic powder recovery device 8 is provided with a sludge inlet 81, a magnetic powder outlet 82, and a second sludge outlet 83, the sludge inlet 81 of the magnetic powder recovery device 8 is connected with the first sludge outlet 42, and the magnetic powder outlet 82 of the magnetic powder recovery device 8 is connected with the container 4.

[0068] Specifically, the magnetic powder recovery device 8 is a prior art, and the magnetic powder can be recycled through the magnetic powder recovery device 8, thereby reducing the operating cost.

[0069] In this embodiment, the magnetic powder recovery device 8 is arranged at the top of the container 4.

[0070] The sludge inlet 81 of the magnetic powder recovery device 8 is provided with a sludge lifting pump 84 between the first sludge outlet 42.

[0071] In this embodiment, the container 4 is provided with a plurality of legs 43.

[0072] Optionally, the coagulant distributor 51, the phosphorus removal agent distributor 52, and the water inlet distributor 53 are arranged in sequence from top to bottom.

[0073] Specifically, the water inlet distributor 53 is arranged at the lowermost position, so that the coagulant and the phosphorus removal agent can be more fully mixed with the sewage.

[0074] The working process of the wastewater phosphorus removal treatment device in this embodiment is as follows:

[0075] The phosphorus-containing sewage enters the reaction zone 1 through the water inlet distributor 53, and the coagulant enters the reaction zone 1 through the coagulant distributor 51, the phosphorus removal agent enters the reaction zone 1 through the phosphorus removal agent distributor 52, the reagent and the sewage are fully mixed under the action of the stirring and lifting unit 6, the phosphorus pollutant and the phosphorus removal agent chemically react to form flocculation, the sewage flows upward, and encounters the flocculating agent, the flocculating agent enters the reaction zone 7 through the flocculating agent distributor 54, and under the stirring action of the second stirring paddle 63, the flocculation forms larger alum flowers, the magnetic powder in the reaction zone 1 acts as a crystal nucleus, so that the flocculation is enlarged and the ability to capture pollutants is improved, high-density alum flowers are formed, the first stirring paddle 64 and the second stirring paddle 63 stir the sewage under the action of the motor 61 and the transmission shaft 62, the sewage continues to flow upward, turns over the reaction zone 1 and enters the plug flow zone 3, after passing through the plug flow zone 3, the alum flowers sink into the sedimentation zone 2, the sewage containing a small amount of suspended solids passes through the inclined pipe part 71, the suspended solids are deposited on the filler of the inclined pipe part 71, the clear water enters the clear water collecting part 72, passes through the adjustable water outlet weir 74 and enters the water outlet channel 73, and finally is discharged out of the device through the water outlet channel 73. The sinking sludge is settled and gathered in the hopper 41, the phosphorus in the sewage is transferred to the sludge through chemical reaction, the discharged sludge enters the magnetic powder recycler 8 under the action of the sludge lifting pump 84, the magnetic powder recycler 8 re-enters the magnetic powder into the container 4, and the sludge is discharged from the device through the second sludge discharge port 83.

[0076] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A wastewater phosphorus removal treatment device, characterized in that, include: Container (4), the bottom of the container (4) is provided with a first mud discharge port (42), and the top of the container (4) forms a water outlet; A cylindrical body (5) is open at both the top and bottom and is disposed inside the container (4). A reaction zone (1) is formed inside the cylindrical body (5), and a settling zone (2) is formed between at least a portion of the cylindrical body (5) and the container (4). The coagulant distributor (51), the phosphorus removal agent distributor (52), and the inlet water distributor (53) are all located at the lower part of the reaction zone (1). Flocculant distributor (54), the flocculant distributor (54) is disposed in the middle of the reaction zone (1); A stirring and lifting unit (6) is disposed within the reaction zone (1); Suspended solids sedimentation unit (7) is disposed inside the container (4) and on the outer side of the upper part of the cylinder (5) for sedimentation of suspended solids in the sewage flowing out of the upper opening of the cylinder (5).

2. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The suspended matter deposition unit (7) includes: An inclined tube section (71) is arranged around the upper part of the cylinder (5). A flow-pushing zone (3) is formed between the inclined tube section (71) and a part of the cylinder (5). A settling zone (2) is formed between another part of the cylinder (5) and the container (4).

3. The wastewater phosphorus removal treatment device according to claim 2, characterized in that, Also includes: The water outlet channel (73) is connected to the water outlet end at its upper part and is provided with an adjustable water outlet weir (74).

4. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The stirring and lifting unit (6) includes: Motor (61); A drive shaft (62) is connected to the motor (61) in a transmission connection; The first stirring paddle (64) is mounted on the drive shaft (62) and disposed between the flocculant distributor (54) and the coagulant distributor (51); The second stirring paddle (63) is mounted on the drive shaft (62) and positioned above the flocculant distributor (54).

5. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The container (4) has a mud hopper (41) at the bottom that gradually narrows from top to bottom; The first mud discharge port (42) is located at the bottom of the mud hopper (41).

6. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The container (4) contains magnetic powder.

7. The wastewater phosphorus removal treatment device according to claim 6, characterized in that, Also includes: A magnetic powder collector (8) is provided with a sludge inlet (81), a magnetic powder outlet (82) and a second sludge outlet (83) connected together. The sludge inlet (81) of the magnetic powder collector (8) is connected to the first sludge outlet (42), and the magnetic powder outlet (82) of the magnetic powder collector (8) is connected to the container (4).

8. The wastewater phosphorus removal treatment device according to claim 7, characterized in that, The magnetic powder collector (8) is located on top of the container (4); A sludge lifting pump (84) is provided between the sludge inlet (81) of the magnetic powder collector (8) and the first sludge discharge port (42).

9. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The container (4) is provided with multiple legs (43).

10. The wastewater phosphorus removal treatment device according to claim 1, characterized in that, The coagulant distributor (51), the phosphorus removal agent distributor (52), and the inlet water distributor (53) are arranged sequentially from top to bottom.

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