Nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutant treatment

Abstract

The utility model relates to the technical field of agricultural water treatment equipment, in particular to a nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutant treatment, which comprises a frame and a treatment cylinder mounted on the frame. A water inlet pipe and a water outlet pipe are respectively mounted at the left end and the right end of the treatment cylinder, and a settling zone, a filtering zone, an aerobic reaction zone and an anaerobic reaction zone are respectively arranged in the treatment cylinder from left to right. According to the utility model, the movable and modularized nitrogen and phosphorus pollutant treatment function is realized by integrating the frame and the treatment barrel. The interior of the treatment cylinder is scientifically divided into a settling zone, a filtering zone, an aerobic reaction zone and an anaerobic reaction zone, and the partition design can sequentially complete primary settling, physical filtering, aerobic biological treatment and anaerobic biological treatment of pollutants, so that nitrogen and phosphorus pollutants in the water body are effectively removed.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural water treatment equipment technical field, concretely is a kind of nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutants governance. BACKGROUND

[0002] In the agricultural production process, due to the excessive use of chemical fertilizer, farmland drainage and wastewater discharge of aquaculture and other reasons, agricultural non-point source nitrogen and phosphorus pollutants become one of the main sources of water pollution. These pollutants not only affect water quality safety, but also may cause water eutrophication, cause damage to aquatic ecosystems, and even threaten human health and ecological environment. Therefore, effectively governing agricultural non-point source nitrogen and phosphorus pollutants becomes a problem to be solved in the current environmental protection field.

[0003] Traditional nitrogen and phosphorus pollutant treatment methods often have low treatment efficiency, high cost, complex operation and other shortcomings, and are difficult to meet the actual needs of agricultural non-point source pollution governance. For example, some physical treatment methods such as sedimentation, filtration and the like, although can remove part of suspended solids and particulate matter, but the removal effect of nitrogen and phosphorus pollutants dissolved in water is limited; and chemical treatment method may introduce new pollutants, and the treatment cost is higher; biological treatment method has good treatment effect, but often needs long treatment time and complex operation management. In view of this, we propose a nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutants governance. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutants governance.

[0005] The technical scheme of the utility model is:

[0006] A nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutants governance, comprising a vehicle frame and a treatment cylinder mounted on the vehicle frame, a cylinder cover is fixedly installed on the top of the treatment cylinder, a water inlet pipe and a drain pipe are respectively installed on the left end and the right end of the treatment cylinder, a sedimentation zone, a filtration zone, an aerobic reaction zone and an anaerobic reaction zone are respectively arranged in the treatment cylinder from left to right, an aerator is installed on the cylinder cover, an aeration pipe extending into the bottom of the aerobic reaction zone is installed on the air outlet of the aerator, exhaust holes are formed above the aerobic reaction zone and the anaerobic reaction zone on the cylinder cover, two universal wheels are symmetrically installed on the bottom of the vehicle frame close to the front side, and two straight wheels are symmetrically installed on the bottom of the vehicle frame close to the rear side.

[0007] As a preferred technical scheme, a lower fixed plate is fixedly installed between the sedimentation zone and the filtration zone in the treatment cylinder, and a first coarse grid is fixedly connected to the top of the lower fixed plate.

[0008] As a preferred technical scheme, the upper fixed plate is fixedly installed inside the filtering area in the processing cylinder.

[0009] As a preferred technical scheme, the fine grid is fixedly installed between the filtering area and the aerobic reaction area in the processing cylinder.

[0010] As a preferred technical scheme, the net box is fixedly installed on the outer wall of the lower fixed plate, the net box is filled with gravel, and the outer wall of the net box is fixedly connected with the processing cylinder.

[0011] As a preferred technical scheme, the two partition plates are fixedly installed between the aerobic reaction area and the anaerobic reaction area in the processing box, the two partition plates are provided with a communication pipe, and the two ends of the communication pipe are communicated with the aerobic reaction area and the anaerobic reaction area.

[0012] As a preferred technical scheme, the lift pump and the electromagnetic valve are installed on the communication pipe.

[0013] As a preferred technical scheme, the trolley handle is installed on the outer wall of the front side of the frame, and the flanges are installed on the water inlet pipe and the drain pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses an integrated frame and processing cylinder, realizes mobile, modular nitrogen and phosphorus pollutant treatment function, and the inside of the processing cylinder is scientifically divided into a sedimentation area, a filtering area, an aerobic reaction area and an anaerobic reaction area. DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the inside structure schematic diagram of the utility model Figure 1 ;

[0018] Figure 3 It is the cross section view of the processing cylinder and the bucket cover in the utility model;

[0019] The meaning of each reference numeral in the drawing is as follows:

[0020] 1, frame; 2, universal wheel; 3, straight wheel; 4, push handle; 5, treatment cylinder; 50, cylinder cover; 51, aerator; 52, exhaust hole; 53, water inlet pipe; 54, drain pipe; 55, extension plate; 56, lower fixed plate; 560, first coarse grid; 57, upper fixed plate; 570, second coarse grid; 58, fine grid; 59, partition plate; 510, aeration pipe; 511, communication pipe; 512, lifting pump; 513, electromagnetic valve; 514, net cage; 515, gravel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-3 The utility model provides a technical scheme:

[0023] A kind of nitrogen and phosphorus removal reactor for agricultural non-point source nitrogen and phosphorus pollutant treatment, including frame 1 and installation on frame 1 processing cylinder 5, processing cylinder 5 top is fixedly installed with cylinder cover 50 by bolt, processing cylinder 5 left end and right end are equipped with water inlet pipe 53 and drain pipe 54 respectively, and the inside of processing cylinder 5 is equipped with sedimentation zone, filtration zone, aerobic reaction zone and anaerobic reaction zone from left to right respectively, cylinder cover 50 is equipped with aerator 51, aerator 51 outlet is equipped with aeration pipe 510 that extends to the bottom of aerobic reaction zone, exhaust hole 52 is set on the top of cylinder cover 50 above aerobic reaction zone and anaerobic reaction zone, frame 1 bottom is symmetrically equipped with two universal wheels 2 close to front side, symmetrically equipped with two straight wheels 3 close to rear side. By integration frame 1 and processing cylinder 5, mobile, modular nitrogen and phosphorus pollutant treatment function is realized.Processing cylinder 5 inside is scientifically divided into sedimentation zone, filtration zone, aerobic reaction zone and anaerobic reaction zone, this zoning design can complete preliminary sedimentation, physical filtration, aerobic biological treatment and anaerobic biological treatment of pollutant in turn, effectively removes nitrogen and phosphorus pollutants in water body. The setting of aerator 51 ensures the sufficient oxygen supply of aerobic reaction zone, promotes the activity of aerobic microorganisms, and improves the nitrogen and phosphorus removal efficiency. The design of exhaust hole 52 ensures that the gas generated during the reaction can be discharged in time, avoiding the influence of gas accumulation on the reaction effect. The universal wheel 2 and straight wheel 3 installed at the bottom of frame 1 make the reactor move flexibly, adapt to the processing needs of different places, and improve the practicability and flexibility of the equipment.

[0024] It should be noted that the top of the treatment cylinder 5 and the bottom of the cylinder cover 50 are integrally formed with two extension plates 55, and the upper and lower extension plates 55 are fixedly connected by bolts.

[0025] As a preferred embodiment of the present application, a lower fixed plate 56 is fixedly installed inside the treatment cylinder 5 between the precipitation zone and the filtration zone, and a first coarse grid 560 is fixedly connected to the top of the lower fixed plate 56. By installing the lower fixed plate 56 and the first coarse grid 560 between the precipitation zone and the filtration zone, larger particles and impurities entering the treatment cylinder 5 can be effectively intercepted and removed, reducing the burden on subsequent treatment areas and improving overall treatment efficiency.

[0026] As a preferred embodiment of the present application, an upper fixed plate 57 is fixedly installed inside the treatment cylinder 5 within the filtration zone, and a second coarse grid 570 is fixedly connected to the bottom of the upper fixed plate 57. By installing the upper fixed plate 57 and the second coarse grid 570 within the filtration zone, further refined filtration of the water body is achieved, removing smaller particles and ensuring that the water entering the aerobic reaction zone and the anaerobic reaction zone is cleaner, which is conducive to the growth and activity of microorganisms.

[0027] As a preferred embodiment of the present application, a fine grid 58 is fixedly installed inside the treatment cylinder 5 between the filtration zone and the aerobic reaction zone. The setting of the fine grid 58 can further refine the filtration effect, prevent fine particles from entering the aerobic reaction zone, protect the microbial community from disturbance, and improve the biological treatment efficiency.

[0028] As a preferred embodiment of the present application, a net box 514 is fixedly installed on the outer wall of the lower fixed plate 56, the net box 514 is filled with gravel 515, and the outer wall of the net box 514 is fixedly connected to the inside of the treatment cylinder 5. The gravel 515 can play a certain filtering role, enhancing the biological treatment capacity of the treatment cylinder 5 and improving the nitrogen and phosphorus removal efficiency.

[0029] As a preferred embodiment of the present application, two partition plates 59 are fixedly installed inside the treatment box between the aerobic reaction zone and the anaerobic reaction zone, a communication pipe 511 is provided between the two partition plates 59, and the two ends of the communication pipe 511 are in communication with the aerobic reaction zone and the anaerobic reaction zone, respectively. The setting of the two partition plates 59 and the communication pipe 511 realizes effective isolation of the aerobic reaction zone and the anaerobic reaction zone, while the communication pipe 511 ensures water flow exchange between the two areas, making the treatment process more flexible and controllable, and enabling adjustment of water flow path and treatment time according to actual needs.

[0030] As a preferred embodiment of the present application, a lifting pump 512 and an electromagnetic valve 513 are installed on the communication pipe 511. The installation of the lifting pump 512 and the electromagnetic valve 513 makes the water flow control of the communication pipe 511 more accurate, enabling adjustment of water flow speed and flow according to treatment needs, further optimizing treatment effect and improving stability and reliability of equipment operation.

[0031] In a preferred embodiment, a trolley handle 4 is installed on the front outer wall of the frame 1, and flanges are installed on both the water inlet pipe 53 and the drain pipe 54. The trolley handle 4 facilitates the movement and operation of the equipment, while the flanges facilitate the connection and disassembly of the water inlet pipe 53 and the drain pipe 54, thus improving the ease of use and maintainability of the equipment.

[0032] When using the nitrogen and phosphorus removal reactor of this utility model for the treatment of nitrogen and phosphorus pollutants from agricultural non-point sources:

[0033] First, the reactor is moved to the vicinity of the agricultural non-point source pollution area to be treated via the casters 2 and straight wheels 3 at the bottom of the chassis 1. Next, the inlet pipe 53 is connected to the polluted water source via a flange, and simultaneously, the outlet pipe 54 is connected to a subsequent treatment or discharge system via a flange.

[0034] When polluted water enters the treatment tank 5 through the inlet pipe 53, it first enters the sedimentation zone. In the sedimentation zone, heavier particles and impurities begin to settle due to gravity, forming preliminary sediment, thereby reducing the burden on subsequent treatment areas.

[0035] The water then flows into the filtration zone. Within the filtration zone, it first passes through a first coarse screen 560 fixed on the lower fixed plate 56, removing larger particles and impurities. Next, the water continues to pass through a second coarse screen 570 fixed on the upper fixed plate 57 for further filtration, removing even smaller particles. At this point, the water has been initially purified, creating favorable conditions for subsequent biological treatment.

[0036] Next, the water flows into the fine screen 58 area. The fine screen 58 is designed to further intercept fine particulate matter, ensuring that the water entering the aerobic reaction zone is cleaner, preventing fine particulate matter from interfering with the microbial community, and improving biological treatment efficiency.

[0037] When water flows into the aerobic reaction zone, the aerator 51 starts working, providing ample oxygen to the bottom of the aerobic reaction zone through the aeration pipe 510. With a sufficient oxygen supply, the activity of aerobic microorganisms increases, and they begin to decompose nitrogen and phosphorus pollutants in the water, converting them into harmless or low-toxic substances. Simultaneously, the gases generated during the reaction are promptly discharged through the vent 52 on the cylinder cover 50, preventing gas accumulation from affecting the reaction effect.

[0038] After aerobic treatment, the water flows into the anaerobic reaction zone through the connecting pipe 511 between the partition plates 59. In the anaerobic reaction zone, anaerobic microorganisms begin to function, further decomposing remaining pollutants in the water. Due to the effective isolation of the two partition plates 59, the water flow and gas in the aerobic and anaerobic reaction zones do not interfere with each other, ensuring the stable operation of each reaction zone.

[0039] The booster pump 512 and solenoid valve 513 installed on the connecting pipe 511 can precisely control the water flow speed and flow rate, adjust the water flow path and treatment time according to the treatment requirements, and further optimize the treatment effect.

[0040] Finally, the water, after sedimentation, filtration, aerobic treatment, and anaerobic treatment, is discharged from the reactor through drain pipe 54 and enters a subsequent treatment or discharge system. At this point, nitrogen and phosphorus pollutants in the water have been effectively removed, meeting environmental discharge standards.

[0041] Throughout the process, the trolley handle 4 installed on the front outer wall of the frame 1 facilitates the movement and operation of the equipment, while the installation of the flange facilitates the connection and disassembly of the water inlet pipe 53 and the drain pipe 54, improving the ease of use and maintainability of the equipment.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrogen and phosphorus removal reactor for the treatment of nitrogen and phosphorus pollutants from agricultural non-point sources, characterized in that: The device includes a frame (1) and a treatment cylinder (5) mounted on the frame (1). The top of the treatment cylinder (5) is fixed with a cylinder cover (50) by bolts. The left and right ends of the treatment cylinder (5) are respectively equipped with an inlet pipe (53) and a drain pipe (54). The inside of the treatment cylinder (5) is provided with a sedimentation zone, a filtration zone, an aerobic reaction zone and an anaerobic reaction zone from left to right. An aerator (51) is installed on the cylinder cover (50). An aeration pipe (510) extending to the bottom of the aerobic reaction zone is installed at the outlet of the aerator (51). The cylinder cover (50) is provided with exhaust holes (52) above the aerobic reaction zone and the anaerobic reaction zone. Two universal wheels (2) are symmetrically installed near the front side of the bottom of the frame (1) and two straight wheels (3) are symmetrically installed near the rear side.

2. The nitrogen and phosphorus removal reactor for treating agricultural non-point source nitrogen and phosphorus pollutants as described in claim 1, characterized in that: Inside the processing cylinder (5), a lower fixing plate (56) is fixedly installed between the sedimentation zone and the filtration zone, and a first coarse grid (560) is fixedly connected to the top of the lower fixing plate (56).

3. The nitrogen and phosphorus removal reactor for the treatment of agricultural non-point source nitrogen and phosphorus pollutants as described in claim 2, characterized in that: The processing cylinder (5) has an upper fixing plate (57) fixedly installed inside the filtration zone, and a second coarse grid (570) is fixedly connected to the bottom of the upper fixing plate (57).

4. The nitrogen and phosphorus removal reactor for the treatment of agricultural non-point source nitrogen and phosphorus pollutants as described in claim 3, characterized in that: A fine grid (58) is fixedly installed inside the treatment cylinder (5) between the filtration zone and the aerobic reaction zone.

5. The nitrogen and phosphorus removal reactor for treating agricultural non-point source nitrogen and phosphorus pollutants as described in claim 4, characterized in that: A net cage (514) is fixedly installed on the outer wall of the lower fixing plate (56). The net cage (514) is filled with gravel (515). The outer wall of the net cage (514) is fixedly connected to the inside of the processing cylinder (5).

6. The nitrogen and phosphorus removal reactor for treating agricultural non-point source nitrogen and phosphorus pollutants as described in claim 5, characterized in that: Two partition plates (59) are fixedly installed inside the treatment box between the aerobic reaction zone and the anaerobic reaction zone. A connecting pipe (511) is provided between the two partition plates (59), and the two ends of the connecting pipe (511) are respectively connected to the aerobic reaction zone and the anaerobic reaction zone.

7. The nitrogen and phosphorus removal reactor for the treatment of agricultural non-point source nitrogen and phosphorus pollutants as described in claim 6, characterized in that: A booster pump (512) and a solenoid valve (513) are installed on the connecting pipe (511).

8. The nitrogen and phosphorus removal reactor for the treatment of agricultural non-point source nitrogen and phosphorus pollutants as described in claim 7, characterized in that: A push handle (4) is installed on the front outer wall of the frame (1), and flanges are installed on the water inlet pipe (53) and the drain pipe (54).

Images