A device for blocking pollutants in nitrogen and phosphorus digestion

Abstract

The application discloses a nitrogen and phosphorus digestion and pollution blocking device, which comprises a plurality of nitrogen and phosphorus digestion and pollution blocking units arranged in a river, all the nitrogen and phosphorus digestion and pollution blocking units are arranged at certain intervals along the width direction of the river, each nitrogen and phosphorus digestion and pollution blocking unit comprises a side pier and a plurality of purification components, the lower end of the side pier is fixed on a riverbed, the plurality of purification components are vertically arranged on the side of the side pier, and the purification components below the water surface of all the nitrogen and phosphorus digestion and pollution blocking units form a fence structure for blocking pollution, each purification component comprises an iron-carbon micro-electrolysis rod, a first connecting piece and a microbial attachment rack, the iron-carbon micro-electrolysis rod and the microbial attachment rack are fixed together through the first connecting piece, and a gap exists between the side surfaces of the iron-carbon micro-electrolysis rod and the microbial attachment rack, so that the pollution blocking device has the ability to treat nitrogen and phosphorus organic pollutants.

Description

Technical Field

[0001] This invention belongs to the technical field of wastewater treatment equipment, specifically relating to a nitrogen and phosphorus digestion and interception device. Background Technology

[0002] Iron-carbon micro-electrolysis technology mainly uses iron filings and activated carbon as raw materials, with iron as the anode and activated carbon as the cathode to form a galvanic cell. It involves processes such as oxidation-reduction reaction, physical adsorption, flocculation and sedimentation, and electro-enrichment. The entire process does not consume electricity and can effectively treat wastewater.

[0003] Trash grates, typically installed at the inlet of a water unit, are frame structures used to prevent debris such as weeds, branches, and driftwood carried by the water flow from entering gates, valves, and turbines. Current trash grates mainly intercept large debris, such as domestic waste and driftwood, but they are ineffective at intercepting nitrogen and phosphorus-containing organic pollutants in the water. Therefore, a device is needed that can both intercept debris and treat nitrogen, phosphorus, and organic pollutants. Summary of the Invention

[0004] The purpose of this invention is to provide a nitrogen and phosphorus decontamination and pollution barrier device, which solves the technical problem that existing pollution barriers do not treat nitrogen and phosphorus organic pollutants in water bodies.

[0005] The solution adopted by this invention to solve its technical problem is:

[0006] A nitrogen and phosphorus decontamination and pollution interception device includes multiple nitrogen and phosphorus decontamination and pollution interception units installed in a river. All nitrogen and phosphorus decontamination and pollution interception units are arranged at certain intervals along the width direction of the river. Each nitrogen and phosphorus decontamination and pollution interception unit includes a side pier and multiple purification components. The lower end of the side pier is fixed to the riverbed, and the multiple purification components are vertically arranged on the side of the side pier. All nitrogen and phosphorus decontamination and pollution interception units form a pollution interception fence structure between the purification components located below the water surface. Each purification component includes an iron-carbon micro-electrolysis rod, a first connector, and a microbial attachment frame. The iron-carbon micro-electrolysis rod and the microbial attachment frame are fixed together by the first connector, and there is a gap between the sides of the iron-carbon micro-electrolysis rod and the microbial attachment frame.

[0007] By setting up side supports, a mounting location is provided for the purification components. The iron-carbon micro-electrolysis rods on the purification components, with iron as the anode and activated carbon as the cathode, form numerous galvanic cells. On one hand, iron is oxidized to ferrous ions (Fe2+), and then further oxidized to ferric ions (Fe3+), generating ferric hydroxide colloidal flocculant. This flocculant effectively adsorbs pollutants in the water, enhancing the purification effect on the water flow. Simultaneously, ferric ions also form insoluble precipitates with phosphates, achieving the elimination of phosphorus-containing pollutants. On the other hand, it provides active electrons for nitrification and denitrification reactions, promoting their progress. Furthermore, the iron-carbon micro-electrolysis rods and microbial attachment racks provide a reliable attachment surface for microbial growth. This process allows microorganisms to form a microbial film between the iron-carbon microelectrolysis rod and the microbial attachment frame, as well as on the microbial attachment frame, enhancing the microorganisms' ability to treat nitrogen, phosphorus, and organic pollutants. By setting multiple purification components, the treatment capacity for nitrogen, phosphorus, and organic pollutants can be improved, and a certain amount of floating debris can also be intercepted. At the same time, to avoid the influence of purification components between adjacent side piers, the length of each purification component is no more than 1 / 2 of the distance between adjacent side piers. By setting a first connector, the iron-carbon microelectrolysis rod and the microbial attachment frame can be fixed together with a certain gap. The gap on the side of the iron-carbon microelectrolysis rod and the microbial attachment frame can create a local bottom velocity zone when water flows through, which is conducive to the attachment and growth of microorganisms.

[0008] Furthermore, the microbial attachment frame is a hollow triangular prism with three sides. One side is concave inward and has a gap with the iron-carbon micro-electrolysis rod to form a channel for water flow. The other two sides are concave inward to form curved surfaces.

[0009] By indenting one side of the microbial attachment frame inward, a channel for water flow is formed between it and the iron-carbon microelectrolysis rod. When water flows through this channel, the direction of the water flow can be changed, and the flow rate can be reduced, making it easier for microorganisms to attach and grow to form a microbial film. The other two sides are indented inward to form curved surfaces. When the water flows through the corners of the curved surfaces, water pooling and swirling are formed, which is conducive to the growth and attachment of microorganisms.

[0010] Furthermore, the microbial attachment frame is made of PVC material, and the ratio of the cross-sectional area of ​​the microbial attachment frame to the cross-sectional area of ​​the iron-carbon microelectrolysis rod is greater than 2.5.

[0011] Because PVC is lightweight, microbial attachment frames made of PVC can reduce their weight. By controlling the cross-sectional area between the microbial attachment frame and the iron-carbon microelectrolysis rod, the hollow microbial attachment frame can have sufficient buoyancy in water.

[0012] Furthermore, the side pier has a portal frame structure with two vertically arranged columns and a horizontally arranged beam. Several oblique grooves are opened vertically on both sides of one of the columns, and the oblique grooves on both sides are symmetrically arranged along the beam. The openings of the oblique grooves face the other column and are inclined downward from the other column. A second connector is rotatably connected to the inclined surface of each oblique groove via a rotating shaft. One end of the iron-carbon micro-electrolysis rod and the microbial attachment frame are fixed to the second connector. Under the action of water flow, the iron-carbon micro-electrolysis rod and the microbial attachment frame can rotate around the rotating shaft through the second connector. The iron-carbon micro-electrolysis rod and the microbial attachment frame can be rotated and stored in the storage cavity formed by the two columns and the beam of the side pier.

[0013] By setting the oblique tooth groove, an installation position is provided for the rotating shaft and the second connector. The inclined surface of the oblique tooth groove provides a support surface for the second connector. By setting the second connector, the iron-carbon micro-electrolysis rod and the microbial attachment frame are connected to the second connector. By setting the rotating shaft, the iron-carbon micro-electrolysis rod and the microbial attachment frame connected to the second connector can rotate around the rotating shaft on the inclined surface of the oblique tooth groove. During the continuous change of water level, when the purification component is submerged, the buoyancy of the microbial attachment frame at the corresponding water level can make the purification component at the corresponding position float. When the water level drops, the purification component gradually emerges from the water surface. Under the action of gravity, the purification component and the second connector rotate around the rotating shaft and automatically retract into the storage cavity of the side pier. By setting the storage cavity, when the water flows through the storage cavity, it swirls in the storage cavity, which reduces the water flow velocity. At the same time, the purification component can also be stored in the storage cavity.

[0014] Furthermore, the lower end of the column with the oblique toothed groove is rotatably connected to the lower end of the protective rod, and the upper end of the protective rod is movably clamped to the upper end of the column. The side of the crossbeam is fixedly connected to a fixing component, which is located on the same side as the protective rod. After the iron-carbon micro-electrolysis rod and the microbial attachment frame are rotated and stored in the storage cavity, the purification assembly composed of the iron-carbon micro-electrolysis rod and the microbial attachment frame can be stored in the storage cavity by clamping the upper end of the protective rod in the fixing component.

[0015] By installing a protective rod and fixing parts, the purification component can be retracted when the water flow is large and the purification component is not needed. The purification component can be stored in the storage cavity, and the protective rod can be manually rotated so that the upper end of the protective rod is locked in the fixing parts. The storage cavity provides a certain degree of protection for the purification component and reduces the impact of water flow.

[0016] Furthermore, the nitrogen and phosphorus decontamination and pollution interception units at both ends along the width of the river have a purification component rotatably connected to one side of their side pier columns, and the purification component is located on the side away from the riverbank slope.

[0017] Because the river channel is shallower near the bank, if purification components are also installed near the bank, only a small portion of the purification components can be used. Therefore, the purification components of the nitrogen and phosphorus decontamination and pollution interception units located at both ends are only installed on the side away from the riverbank slope.

[0018] Several operating conditions of the above-mentioned nitrogen and phosphorus decomposition and pollution interception device:

[0019] 1. Manually open the protective rod. As the water level rises, the purification component at the corresponding water level can rotate freely around the shaft under the action of the water flow. When the water flow velocity is high, the purification component will fully unfold under the impact and buoyancy of the water and lie horizontally in the water, perpendicular to the direction of the water flow.

[0020] 2. When the water flow rate and velocity of the water to be treated are large, since the nitrogen and phosphorus organic pollutants in the water have been sufficiently diluted, there is no need to purify nitrogen and phosphorus. Therefore, manually rotate the protective rod to lock the upper end of the protective rod into the fixing part and store the purification component into the storage cavity.

[0021] 3. Manually open the protective rod. As the water level rises, the purification component at the corresponding water level can rotate freely around the shaft under the action of the water flow. When the water flow speed is low, the purification component tilts and floats in the water under the impact and buoyancy of the water.

[0022] The beneficial effects of this invention are:

[0023] 1. By setting up purification components, the present invention enables the nitrogen and phosphorus decontamination and interception device to not only intercept floating garbage, but also treat nitrogen and phosphorus organic pollutants in water.

[0024] 2. By allowing water to flow and swirl between the microbial attachment frame and the iron-carbon microelectrolysis rod, microorganisms attach and grow there. This causes the other two sides of the microbial attachment frame to become curved. When water flows through the grooves on the sides of the microbial attachment frame, it can change the direction of the water flow and reduce the flow rate. Microbial films also attach and grow on the other two sides of the microbial attachment frame, thus improving the purification effect.

[0025] 3. By setting up a receiving cavity, the flow rate of water can be reduced when the water flows through the receiving cavity.

[0026] 4. The purification components on each side pier can be stored in the storage cavity, which will facilitate storage and transportation, and also make it easier for staff to clean and maintain the purification components. Attached Figure Description

[0027] Figure 1 This is an overall structural diagram of a nitrogen and phosphorus decomposition and pollution interception device.

[0028] Figure 2 This is a structural diagram of the purification component.

[0029] Figure 3 This is a structural diagram of the helical tooth groove, rotating shaft, second connector, and purification assembly.

[0030] Figure 4 This is a structural diagram showing the purification components being retracted.

[0031] Figure 5 This is a structural diagram showing the purification components not being retracted.

[0032] The components, parts and their numbers in the diagram are as follows: Side block 1, iron-carbon micro-electrolysis rod 2, first connector 3, microbial attachment rack 4, oblique tooth groove 5, rotating shaft 6, second connector 7, storage cavity 8, protective rod 9, fixing part 10. Detailed Implementation

[0033] The specific implementation methods of the present invention are given below, and the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] like Figure 1 As shown, a nitrogen and phosphorus decontamination and pollution interception device includes three nitrogen and phosphorus decontamination and pollution interception units set in a river. All nitrogen and phosphorus decontamination and pollution interception units are set at a certain interval along the width direction of the river, and the interval is set according to the specific conditions of the river. Each nitrogen and phosphorus decontamination and pollution interception unit includes a side pier 1 and 18 purification components. The lower end of the side pier 1 is fixed to the riverbed, and the 18 purification components are vertically set on the side of the side pier 1. All nitrogen and phosphorus decontamination and pollution interception units form a pollution interception fence structure between the purification components located below the water surface. Each purification component includes an iron-carbon micro-electrolysis rod 2, a first connector 3, and a microbial attachment frame 4. The iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 are fixed together by the first connector 3, and there is a gap between the sides of the iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4.

[0036] like Figure 2 As shown, the microbial attachment frame 4 is a hollow triangular prism with three sides. One side is concave, forming a gap between it and the iron-carbon micro-electrolysis rod 2, creating a channel for water flow. The other two sides are concave, forming curved surfaces. The microbial attachment frame 4 is made of PVC material, and the ratio of its cross-sectional area to that of the iron-carbon micro-electrolysis rod 2 is 3.

[0037] like Figure 3As shown, the side pier 1 has a portal frame structure with two vertically arranged columns and a horizontally arranged beam. One of the columns has 18 oblique grooves 5 vertically arranged on both sides. The oblique grooves 5 on both sides are symmetrically arranged along the beam. The opening of the oblique grooves 5 faces the other column and is inclined downward from the other column. A second connector 7 is rotatably connected to the inclined surface of each oblique groove 5 through a rotating shaft 6. One end of the iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 are fixed to the second connector 7. Under the action of water flow, the iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 can rotate around the rotating shaft 6 through the second connector 7. The iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 can be rotated and stored in the storage cavity 8 formed by the two columns and the beam of the side pier 1.

[0038] The lower end of the column with the oblique toothed groove 5 is rotatably connected to the lower end of the protective rod 9. The upper end of the protective rod 9 is movably clamped to the upper end of the column. The side of the crossbeam is fixedly connected to the fixing member 10. The fixing member 10 and the protective rod 9 are located on the same side. After the iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 are rotated and stored in the storage cavity 8, the purification assembly composed of the iron-carbon micro-electrolysis rod 2 and the microbial attachment frame 4 can be stored in the storage cavity 8 by clamping the upper end of the protective rod 9 in the fixing member 10.

[0039] The nitrogen and phosphorus decontamination and pollution interception units at both ends along the width of the river have a purification component rotatably connected to one side of the side pier 1 column, and the purification component is located on the side away from the riverbank slope.

[0040] Example 2:

[0041] like Figure 4 and Figure 5 As shown, there are several operating conditions for the above-mentioned nitrogen and phosphorus decomposition and pollution interception device:

[0042] 1. Manually open the protective rod 9. As the water level rises, the purification component at the corresponding water level can rotate freely around the rotating shaft 6 under the action of the water flow. When the water flow velocity is high, the purification component will fully unfold under the impact and buoyancy of the water and lie horizontally in the water, perpendicular to the direction of the water flow.

[0043] 2. When the water flow rate and velocity of the water to be treated are large, since the nitrogen and phosphorus organic pollutants in the water have been sufficiently diluted, there is no need to purify the nitrogen and phosphorus. Therefore, manually rotate the protective rod 9 and lock the upper end of the protective rod 9 into the fixing part 10 to store the purification component into the storage cavity 8.

[0044] 3. Manually open the protective rod 9. As the water level rises, the purification component at the corresponding water level can rotate freely around the rotating shaft 6 under the action of the water flow. When the water flow speed is low, the purification component tilts and floats in the water under the impact and buoyancy of the water.

Claims

1. A nitrogen and phosphorus decontamination and pollution interception device, characterized in that, It includes multiple nitrogen and phosphorus decontamination and pollution interception units set up in the river, with all nitrogen and phosphorus decontamination and pollution interception units set up at certain intervals along the width of the river; Each nitrogen and phosphorus decomposition and pollution interception unit includes a side pier (1) and multiple purification components; the lower end of the side pier (1) is fixed to the riverbed, and multiple purification components are vertically set on the side of the side pier (1). All nitrogen and phosphorus decomposition and pollution interception units are located between the purification components below the water surface to form a pollution interception fence structure. Each purification component includes an iron-carbon micro-electrolysis rod (2), a first connector (3), and a microbial attachment frame (4). The iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) are fixed together by the first connector (3), and there is a gap between the sides of the iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4). The side pier (1) has a portal frame structure with two vertically arranged columns and a horizontally arranged beam. Several oblique grooves (5) are opened vertically on both sides of one of the columns. The oblique grooves (5) on both sides are symmetrically arranged along the beam. The opening of the oblique grooves (5) faces the other column and is inclined downward from the other column. A second connector (7) is rotatably connected to the inclined surface of each oblique groove (5) through a rotating shaft (6). One end of the iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) are fixed to the second connector (7). The iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) rotate around the rotating shaft (6) through the second connector (7) under the action of water flow. The iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) can be rotated and stored in the storage cavity (8) formed by the two columns and the beam of the side pier (1).

2. The nitrogen and phosphorus decontamination and pollution interception device according to claim 1, characterized in that, The microbial attachment frame (4) is a hollow triangular prism with three sides. One side is concave inward and has a gap with the iron-carbon micro-electrolysis rod to form a channel for water to flow through. The other two sides are concave inward to form curved surfaces.

3. The nitrogen and phosphorus decontamination and pollution interception device according to claim 2, characterized in that, The microbial attachment frame (4) is made of PVC material, and the ratio of the cross-sectional area of ​​the microbial attachment frame (4) to the cross-sectional area of ​​the iron-carbon microelectrolysis rod (2) is greater than 2.

5.

4. The nitrogen and phosphorus decontamination and pollution interception device according to claim 3, characterized in that, The lower end of the column with the oblique toothed groove (5) is rotatably connected to the lower end of the protective rod (9). The upper end of the protective rod (9) is movably locked on the upper end of the column. The side of the crossbeam is fixedly connected to the fixing member (10). The fixing member (10) and the protective rod (9) are located on the same side. After the iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) are rotated and stored in the storage cavity (8), the iron-carbon micro-electrolysis rod (2) and the microbial attachment frame (4) can be stored in the storage cavity (8) by locking the upper end of the protective rod (9) in the fixing member (10).

5. The nitrogen and phosphorus decontamination and pollution interception device according to claim 4, characterized in that, The nitrogen and phosphorus decontamination and pollution interception units at both ends along the width of the river have a purification component rotatably connected to one side of the side pier column, and the purification component is located on the side away from the riverbank slope.

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