CN212127910U - Nitrogen and phosphorus removal device for denitrification in farmland - Google Patents
Nitrogen and phosphorus removal device for denitrification in farmland Download PDFInfo
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- CN212127910U CN212127910U CN202020598579.7U CN202020598579U CN212127910U CN 212127910 U CN212127910 U CN 212127910U CN 202020598579 U CN202020598579 U CN 202020598579U CN 212127910 U CN212127910 U CN 212127910U
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Abstract
The utility model discloses a denitrification nitrogen and phosphorus removal device for farmlands, the pool body of the device mainly comprises a main treatment pool, a water collecting pool and a drainage pool; the main treatment tank is sequentially divided into a plant nitrogen and phosphorus adsorption area, a denitrification nitrogen and phosphorus treatment area and a precipitation area from top to bottom through a filtering and separating net; a water inlet pipe butted with a farmland water outlet is arranged on the side wall of the water collecting tank, and a water outlet pipe for treated water to flow out is arranged on the side wall of the water discharging tank; the water collecting tank is communicated with the plant nitrogen and phosphorus adsorption area, and the water draining tank is communicated with the upper part of the sedimentation area. The utility model discloses a main pond of handling of integration, catch basin and drainage basin carry out the nitrogen phosphorus of denitrification of farmland drainage and handle to utilize setting up of plant nitrogen phosphorus adsorption zone, denitrification nitrogen phosphorus treatment zone to realize the secondary treatment of farmland drainage, can be guaranteeing that the volume is light, the installation is simple and can arrange on the advantage basis of farmland outlet fast, improve the treatment effect of farmland non-point source pollutant, improve nitrogen phosphorus pollutant adsorption treatment's in the farmland drainage efficiency.
Description
Technical Field
The utility model relates to a farmland nitrogen phosphorus falls volume of handling technical field, especially relates to a farmland is with denitrification nitrogen phosphorus removal device.
Background
The farmland non-point source pollution refers to the pollution of water environment formed by nitrogen, phosphorus and other nutrient substances, pesticides and other organic or inorganic pollutants through surface runoff of a farmland and farmland infiltration in agricultural production activities. Such pollution mainly includes fertilizer pollution, pesticide pollution, and the like.
In order to reduce the non-point source pollution of farmland, a mode of harmlessly treating pollutants needs to be added while scientifically applying pesticides and fertilizers. However, most of the existing denitrification nitrogen and phosphorus treatment devices are large in size; for example: the invention patent application with application publication number CN107043163A discloses a double-sludge oxidation ditch denitrification nitrogen and phosphorus removal device and method, the device comprises an oxidation ditch, an anaerobic zone, an anoxic zone and a water outlet zone which are sequentially communicated are arranged in the oxidation ditch, an independent nitrification zone is arranged between the anaerobic zone and the anoxic zone along the flow direction of sewage, a pre-anaerobic zone is arranged between the anoxic zone and the anaerobic zone, the independent nitrification zone is respectively isolated from the anaerobic zone and the anoxic zone through a first baffle and a second baffle, a first sludge and water separation zone, a filler zone, a second sludge and water separation zone and a flow stabilization zone are sequentially arranged along the flow direction of the sewage, and nitrifying bacteria are enriched in the filler zone. However, the device disclosed in the patent application has large floor area and long construction time, and is not suitable for popularization of large-area agricultural non-point source pollution treatment.
Therefore, it is necessary to design a denitrification nitrogen and phosphorus removal device for farmland with small floor space and good pollutant treatment effect to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a nitrogen phosphorus device is removed with denitrification in farmland, the device can be guaranteeing that the volume is light, the installation is simple and can arrange on the advantage basis of farmland outlet fast, improve the treatment of farmland non-point source pollutant, improve the efficiency that nitrogen phosphorus pollutant adsorption was handled in the farmland drainage.
The specific technical scheme is as follows:
a denitrification nitrogen and phosphorus removal device for a farmland comprises a pool body, wherein the pool body mainly comprises a main treatment pool, a water collecting pool and a drainage pool;
the main treatment tank is sequentially divided into a plant nitrogen and phosphorus adsorption area, a denitrification nitrogen and phosphorus treatment area and a precipitation area from top to bottom through a filtering and separating net;
a water inlet pipe for farmland sewage to enter is arranged on the side wall of the water collecting tank, and a drain pipe for treated water to flow out is arranged on the side wall of the drainage tank;
the water collecting tank is communicated with the plant nitrogen and phosphorus adsorption area, and the water draining tank is communicated with the upper part of the settling area.
The device provided by the utility model is buried at the periphery of a farmland or on a ridge and needs to be butted with a farmland drainage port; the denitrification nitrogen and phosphorus removal treatment of the farmland water is carried out when the farmland is drained. The plant nitrogen and phosphorus adsorption area is used for adsorbing nitrogen and phosphorus in farmland water by using the root system of a plant; the denitrifying nitrogen and phosphorus treatment area is used for denitrifying nitrogen and phosphorus in farmland water by using denitrifying bacteria, belongs to secondary treatment on the basis of plant nitrogen and phosphorus adsorption, and further improves the treatment effect of the nitrogen and phosphorus.
Further, the water collecting tank and the water draining tank are positioned on the same side of the main treatment tank and are separated from the main treatment tank through a partition wall; the water collecting tank is positioned above the water drainage tank and is separated from the water drainage tank by a separation plate. The water collecting tank and the water discharging tank are stacked on the same side of the main treatment tank, so that the space can be reasonably utilized, and the volume of the whole device is effectively reduced; and the upper and lower position relation of the water collecting tank and the water discharging tank is utilized to realize the flow track of water flow from top to bottom under the action of gravity without additionally providing power.
Furthermore, the top of the water collecting tank is flush with the top of the plant nitrogen and phosphorus adsorption area, and the bottom of the water collecting tank is flush with the middle part of the denitrification nitrogen and phosphorus treatment area; the top of the drainage pond is flush with the middle part of the denitrification nitrogen and phosphorus treatment area, and the bottom of the drainage pond is flush with the middle part of the sedimentation area.
Furthermore, a first water passing mesh communicated with the plant nitrogen and phosphorus adsorption area is formed in a partition wall corresponding to the upper part of the water collecting tank; and a second water passing mesh communicated with the upper part of the sedimentation tank is arranged on the partition wall corresponding to the lower part of the drainage tank.
Furthermore, a slot for inserting the water-proof inserting plate is arranged on the partition wall corresponding to the first water passing mesh. Under the circumstances that the farmland water was not discharged and nitrogen phosphorus removal of denitrification was handled, need insert the water proof picture peg in the slot, and under the circumstances that need discharge the farmland water and carry out nitrogen phosphorus removal of denitrification and handle, need extract the water proof picture peg in the slot, let the rivers in the catch basin flow into in the plant nitrogen phosphorus adsorption zone.
Furthermore, the water-resisting plugboard is provided with a water-resisting part inserted into the slot and a pushing part for taking water; the pushing part is T-shaped.
Furthermore, an organic filler for plant growth is laid at the bottom of the plant nitrogen and phosphorus adsorption area, and aquatic plants with nitrogen and phosphorus adsorption are planted on the organic filler; the aquatic plants are used for adsorbing nitrogen and phosphorus.
Furthermore, a water-permeable geosynthetic material is laid between the organic filler and the filtering separation net to ensure that the organic filler is not impacted and lost by water flow, so that the porous light nitrogen-phosphorus adsorption material is polluted.
Furthermore, a porous light nitrogen and phosphorus adsorption material and denitrifying phosphorus accumulating bacteria attached to the porous light nitrogen and phosphorus adsorption material are arranged in the denitrifying nitrogen and phosphorus treatment area; denitrifying nitrogen and phosphorus treatment is carried out by using denitrifying phosphorus accumulating bacteria, and secondary treatment based on plant nitrogen and phosphorus adsorption is realized.
Furthermore, the water inlet pipe and the water outlet pipe are provided with a filtering and intercepting net for removing large-particle impurities.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a main pond of handling of integration, catch basin and drainage basin carry out the nitrogen phosphorus of denitrification of farmland drainage and handle to utilize setting up of plant nitrogen phosphorus adsorption zone, denitrification nitrogen phosphorus treatment zone to realize the secondary treatment of farmland drainage, can be guaranteeing that the volume is light, the installation is simple and can arrange on the advantage basis of farmland outlet fast, improve the treatment effect of farmland non-point source pollutant, improve nitrogen phosphorus pollutant adsorption treatment's in the farmland drainage efficiency.
Drawings
FIG. 1 is a schematic view of the top view structure of the denitrification nitrogen and phosphorus removal device for farmland.
FIG. 2 is a schematic sectional view of the A-A of the denitrification nitrogen and phosphorus removal device for agricultural land shown in FIG. 1.
FIG. 3 is a schematic sectional view of the section B-B of the denitrification nitrogen and phosphorus removal device for agricultural land shown in FIG. 1.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in figures 1, 2 and 3, the utility model provides a nitrogen phosphorus device is removed with denitrification in farmland, the device can adopt the customization of stainless steel matter to obtain, and the concrete joining mode of each part all adopts conventional means such as ripe bolt, rivet, welding, pasting among the prior art, no longer details here.
The denitrification nitrogen and phosphorus removal device for the farmland is buried at the periphery of the farmland or on a ridge (as shown in 8 of figure 3), and comprises a tank body, wherein the tank body consists of a main treatment tank 1, a water collecting tank 2 and a drainage tank 3. Wherein, the main treatment tank 1 is sequentially divided into a plant nitrogen and phosphorus adsorption area 11, a denitrification nitrogen and phosphorus treatment area 12 and a precipitation area 13 from top to bottom through a filtering and separating net; the plant nitrogen and phosphorus adsorption area 12 and the denitrification nitrogen and phosphorus treatment area 13 are separated through a first filtering separation net 14, and the denitrification nitrogen and phosphorus treatment area 12 and the sedimentation tank 13 are separated through a second filtering separation net 15. An organic filler 16 required by plant growth is laid at the bottom of the plant nitrogen and phosphorus adsorption area 11, and aquatic plants 17 with nitrogen and phosphorus adsorption are planted on the organic filler 16. A water permeable geosynthetic material 18 is laid between the organic filler 16 and the first filtering spacer 14 to ensure that the organic filler 16 is not lost by water flow impact, thereby contaminating the porous light nitrogen phosphorus adsorption material 19. A porous light nitrogen and phosphorus adsorption material 19 and denitrifying phosphorus accumulating bacteria attached to the porous light nitrogen and phosphorus adsorption material 19 are arranged in the denitrifying nitrogen and phosphorus treatment area 12; the water flowing into the denitrification nitrogen and phosphorus treatment area 12 degrades and adsorbs nitrogen and phosphorus in the water through the porous light nitrogen and phosphorus adsorption material 19 and the denitrification phosphorus accumulating bacteria attached to the porous light nitrogen and phosphorus adsorption material 19.
A water inlet pipe 21 which is butted with a farmland drainage port is arranged on the side wall of the water collecting tank 2 and is used for farmland drainage to enter, and a drainage pipe 31 for treated water to flow out is arranged on the side wall of the drainage tank 3; the water inlet pipe 21 and the water outlet pipe 31 are both provided with a filtering and intercepting net. The water collecting tank 2 is communicated with the plant nitrogen and phosphorus adsorption area 11, and the water draining tank 3 is communicated with the upper part of the sedimentation area 13. The water collecting tank 2 and the water discharging tank 3 are positioned at the same side of the main treatment tank 1 and are separated from the main treatment tank 1 by a partition wall 4; the water collecting basin 2 is located above the water draining basin 3 and is separated from the water draining basin 3 by a partition 5. The top of the water collecting tank 2 is flush with the top of the plant nitrogen and phosphorus adsorption area 11, and the bottom of the water collecting tank is flush with the middle part of the denitrification nitrogen and phosphorus treatment area 12; the top of the drainage pool 3 is flush with the middle part of the denitrification nitrogen and phosphorus treatment area 12, and the bottom of the drainage pool is flush with the middle part of the sedimentation area 13. A first water passing mesh 41 communicated with the plant nitrogen and phosphorus adsorption area 11 is arranged on the partition wall 4 corresponding to the upper part of the water collecting tank 2; the partition wall 4 corresponding to the lower part of the drainage pool 3 is provided with a second water passing mesh 42 communicated with the upper part of the sedimentation zone 13. And the water collecting tank 2 and the denitrification nitrogen and phosphorus treatment area 12 as well as the water discharging tank 3 and the denitrification nitrogen and phosphorus treatment area 12 are separated by partition walls 4 and are not communicated. The partition wall 4 corresponding to the first water passing mesh 41 is provided with a slot 7 for inserting the water isolating inserting plate 6. The water-resisting inserting plate 6 is provided with a water-resisting part 61 inserted into the inserting groove 7 and a pushing part 62 for taking water; the pushing portion 62 is T-shaped.
The operation steps of the denitrification nitrogen and phosphorus removal device for the farmland are as follows:
(1) the denitrification nitrogen and phosphorus removal device for the farmland is arranged at the drainage port of the farmland, so that the water inlet pipe is ensured to be butted with the drainage port of the farmland, the discharged water can enter the water collecting tank through the water inlet pipe when the farmland drains, and large granular impurities flowing along with the farmland sewage are intercepted through the filtering and intercepting net; in the process of just starting water collection, the water-proof inserting plate is inserted into the inserting groove, so that farmland sewage in the water collecting tank cannot enter a plant nitrogen and phosphorus adsorption area of the main treatment tank;
(2) when farmland sewage needs to be treated, the water-resisting inserting plate is pulled out from the inserting groove, the farmland sewage in the water collecting tank enters the plant nitrogen and phosphorus adsorption area through the first water passing meshes, and the aquatic plants are used for carrying out first nitrogen and phosphorus adsorption;
(3) after entering the plant nitrogen and phosphorus adsorption area, farmland sewage flows downwards while nitrogen and phosphorus are adsorbed by the aquatic plants, passes through the water-permeable geosynthetic material paved between the organic filler and the first filtering separation net, then passes through the first filtering separation net to enter the denitrification nitrogen and phosphorus treatment area, and the water flowing into the denitrification nitrogen and phosphorus treatment area is subjected to secondary degradation and adsorption on nitrogen and phosphorus in the water through the porous light nitrogen and phosphorus adsorption material and the denitrification phosphorus accumulating bacteria attached to the porous light nitrogen and phosphorus adsorption material;
(4) when the second degradation is absorptive, the water downward flow gets into the settling zone, and silt sinks to the bottom of the pool, and the clear water is located settling zone upper portion to in the second water mesh inflow drainage pond through settling zone upper portion and drainage pond intercommunication, the drain pipe through drainage pond flows out at last, and filters through the filtration interception net on the drain pipe, with the clear water drainage ditch in.
The utility model discloses the device can be about 1 hour at the farmland outlet transformation installation and finish, can close the retaining baffle and keep in the farmland when there is the retaining demand, fertilize in the farmland, when spouting the medicine drainage, can filter the drainage of nitrogen phosphorus enrichment, greatly reduced's farmland non-point source pollutant.
Claims (10)
1. A denitrification nitrogen and phosphorus removal device for farmlands comprises a pool body and is characterized in that the pool body mainly comprises a main treatment pool, a water collecting pool and a drainage pool;
the main treatment tank is sequentially divided into a plant nitrogen and phosphorus adsorption area, a denitrification nitrogen and phosphorus treatment area and a precipitation area from top to bottom through a filtering and separating net;
a water inlet pipe butted with a farmland drainage port is arranged on the side wall of the water collecting tank, and a drainage pipe for treated water to flow out is arranged on the side wall of the drainage tank;
the water collecting tank is communicated with the plant nitrogen and phosphorus adsorption area, and the water draining tank is communicated with the upper part of the settling area.
2. The device for denitrifying nitrogen and phosphorus removal for agricultural fields as defined in claim 1, wherein said water collecting tank and said water discharging tank are located at the same side of the main treatment tank and separated from the main treatment tank by a partition wall; the water collecting tank is positioned above the water drainage tank and is separated from the water drainage tank by a separation plate.
3. The device for denitrifying nitrogen and phosphorus removal for agricultural fields as defined in claim 2, wherein the top of said water collecting tank is flush with the top of the plant nitrogen and phosphorus adsorption area, and the bottom is flush with the middle of the denitrifying nitrogen and phosphorus treatment area; the top of the drainage pond is flush with the middle part of the denitrification nitrogen and phosphorus treatment area, and the bottom of the drainage pond is flush with the middle part of the sedimentation area.
4. The device for preventing nitrogen and phosphorus from being nitrified in the farmland as claimed in claim 3, wherein a first water passing mesh communicated with the plant nitrogen and phosphorus adsorption area is formed on a partition wall corresponding to the upper part of the water collecting tank; and a second water passing mesh communicated with the upper part of the settling zone is arranged on the partition wall corresponding to the lower part of the drainage pool.
5. The device for removing nitrogen and phosphorus by denitrification in farmland as claimed in claim 4, wherein the partition wall corresponding to the first water passing mesh hole is provided with a slot for inserting a water-proof inserting plate.
6. The device for removing nitrogen and phosphorus by denitrification for farmland as claimed in claim 5, wherein the water-proof inserting plate is provided with a water-proof part inserted into the inserting slot and a pushing part for taking water; the pushing part is T-shaped.
7. The device for preventing nitrogen and phosphorus from being nitrified in the farmland as claimed in claim 1, wherein an organic filler required for the growth of plants is laid at the bottom of the plant nitrogen and phosphorus adsorption area, and aquatic plants with nitrogen and phosphorus adsorption are planted on the organic filler.
8. The device for farmland denitrification with nitrogen and phosphorus removal as claimed in claim 7, wherein a water permeable geosynthetic material is laid between said organic filler and said filtering screen.
9. The device for removing nitrogen and phosphorus by denitrification in farmland as claimed in claim 1, wherein a porous light nitrogen and phosphorus adsorbing material and denitrifying phosphorus accumulating bacteria attached to the porous light nitrogen and phosphorus adsorbing material are arranged in the denitrifying nitrogen and phosphorus treatment area.
10. The device for denitrifying dephosphatation in agricultural fields as defined in claim 1, in which the water inlet pipe and the water outlet pipe are both provided with filter and interception nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598579.7U CN212127910U (en) | 2020-04-20 | 2020-04-20 | Nitrogen and phosphorus removal device for denitrification in farmland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598579.7U CN212127910U (en) | 2020-04-20 | 2020-04-20 | Nitrogen and phosphorus removal device for denitrification in farmland |
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| Publication Number | Publication Date |
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| CN212127910U true CN212127910U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020598579.7U Active CN212127910U (en) | 2020-04-20 | 2020-04-20 | Nitrogen and phosphorus removal device for denitrification in farmland |
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| CN (1) | CN212127910U (en) |
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- 2020-04-20 CN CN202020598579.7U patent/CN212127910U/en active Active
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