CN114229944A - Device for controlling phosphorus diffusion of farmland irrigation channel - Google Patents
Device for controlling phosphorus diffusion of farmland irrigation channel Download PDFInfo
- Publication number
- CN114229944A CN114229944A CN202111530560.4A CN202111530560A CN114229944A CN 114229944 A CN114229944 A CN 114229944A CN 202111530560 A CN202111530560 A CN 202111530560A CN 114229944 A CN114229944 A CN 114229944A
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- Prior art keywords
- phosphorus
- stainless steel
- precast concrete
- irrigation
- phosphorus diffusion
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
- E02B13/02—Closures for irrigation conduits
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a device for controlling phosphorus diffusion of a farmland irrigation canal, which comprises a precast concrete outer frame arranged in an irrigation canal channel, wherein the top of the precast concrete outer frame is higher than the bottom of the irrigation canal channel, a stainless steel gabion is arranged in the precast concrete outer frame, iron ore fillers are filled in the stainless steel gabion, and an open-close top cover is arranged at the top of the stainless steel gabion. The method utilizes the iron ore to adsorb phosphorus in water, is suitable for reducing the amount of surplus phosphorus elements entering the water body after farmland irrigation, reduces the content of phosphorus discharged into the water body environment, lightens the load of the water body, and is beneficial to keeping the stability of the water quality of the surrounding water body for a long time; the modularization constitutes, and the device is small, and the later stage does not have the maintenance basically, only needs regularly to clear up, but the one-man operation is changed to the filler, and the filler that changes down has adsorbed the phosphorus element, can regard as the phosphorus fertilizer to use, and the resource utilization degree is high.
Description
Technical Field
The invention belongs to the technical field of environmental protection, relates to a preventive ecological measure for eutrophication of a receiving water body caused by agricultural irrigation water, and particularly relates to a device for controlling phosphorus diffusion for a farmland irrigation canal.
Background
Along with the realization of agricultural mechanization and modernization, the use amount of the nitrogen-phosphorus-potassium-element-containing chemical fertilizer is greatly increased, nitrogen and phosphorus elements in the chemical fertilizer cannot be completely absorbed by crops, redundant nitrogen and phosphorus elements are dissolved in irrigation water and directly discharged into peripheral water along with irrigation return water channels, and therefore the problem of eutrophication of the peripheral water of most agricultural lands is continuously aggravated. Irrigation ditches are important hydraulic engineering in agricultural areas, the irrigation and drainage functions of the irrigation ditches are an important guarantee for agricultural safety production, and the ecological functions of the irrigation ditches in farmlands are not paid enough attention. With the deep research on agricultural non-point source pollution, the role of farmland irrigation ditches in controlling phosphorus non-point source pollution is attracting more and more attention.
Disclosure of Invention
In view of the above, the present invention provides a device for controlling phosphorus diffusion for a farm irrigation ditch, which is used for controlling phosphorus diffusion in order to solve the problems of the prior art that the agricultural irrigation water is high in nitrogen and phosphorus content and easily causes eutrophication of water body.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a device that is used for control phosphorus diffusion of field irrigation canal, including setting up the precast concrete frame in irrigating the canal channel, the top of precast concrete frame is higher than at the bottom of irrigating the canal channel, be equipped with the stainless steel gabion in the precast concrete frame, the intussuseption of stainless steel gabion is filled with iron ore filler, the top of stainless steel gabion is equipped with open-close type top cap.
According to the device for controlling phosphorus diffusion of the farmland irrigation canal, the precast concrete outer frame and the stainless steel gabion are both rectangular frame bodies, and the size of the stainless steel gabion is 500mm multiplied by 300mm multiplied by 400 mm.
The device for controlling phosphorus diffusion of the farmland irrigation canal, wherein the iron ore filler has the grain diameter of 4.5-6.0 mm and the volume weight of 3.10g/cm3The porous structure of (3).
According to the device for controlling phosphorus diffusion of the farmland irrigation canal, the opening-closing type top cover is of a single-side opening-closing type, and the opening-closing type top cover is fixed by bolts after being closed.
According to the device for controlling phosphorus diffusion of the farmland irrigation channel, the top of the precast concrete outer frame is 10-15 cm higher than the bottom of the irrigation channel.
The phosphorus diffusion control device for the farmland irrigation canal is arranged at one side end part close to the external drain pipe in the irrigation canal channel.
The technical scheme of the invention has the beneficial effects that:
1. the iron ore is used for adsorbing phosphorus in water, so that the method is suitable for reducing the amount of surplus phosphorus entering a water body after farmland irrigation, reducing the content of phosphorus discharged into the water body environment, reducing the load of the water body and being beneficial to keeping the stability of the water quality of the surrounding water body for a long time;
2. by controlling the discharge of phosphorus, the proportion of N and P in water is controlled, the propagation of algae plants with strong oxygen consumption such as green algae is inhibited, the dissolved oxygen concentration in water is improved, and the water body eutrophication preventing effect is obvious;
3. the device is formed in a modularized mode, can be used on a pipe duct node, a main trunk or a branch line according to needs by utilizing the existing pipe duct system, is simple to maintain, and can well adapt to the requirements of total phosphorus reduction with different concentrations;
4. the device is small, can double configuration simple tool accomplish the installation, and the later stage does not have the maintenance basically, only needs regular cleaning, but the one-man operation of filler change, and the filler that gets off of change adsorbs the phosphorus element, can regard as the phosphorus fertilizer to use, and the resource utilization degree is high.
Drawings
To further illustrate the above objects, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a plan view of the apparatus of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the arrangement of the apparatus of the present invention;
wherein: 0. irrigating the canal; 1. prefabricating a concrete outer frame; 2. a stainless steel gabion; 3. iron ore fillers; 4. an open-close type top cover; 5. and a water discharge pipe.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Referring to fig. 1 and 2, the device for controlling phosphorus diffusion for a farmland irrigation canal of the invention comprises a precast concrete outer frame 1 arranged in a canal of an irrigation canal 0, wherein the top of the precast concrete outer frame 1 is higher than the bottom of the irrigation canal 0, a stainless steel gabion 2 is arranged in the precast concrete outer frame 1, iron ore fillers 3 are filled in the stainless steel gabion 2, and an open-close top cover 4 is arranged at the top of the stainless steel gabion 3.
In the preferred embodiment of the present application, the precast concrete outer frame 1 and the stainless steel gabion 2 are both rectangular frame bodies, and the dimension of the stainless steel gabion 2 is 500mm × 300mm × 400 mm. The iron ore filler 3 has a particle size of 4.5-6.0 mm and a volume weight of 3.10g/cm3Preferably, the filling depth of the porous structure of (3), in particular the iron ore packing, within the stainless steel gabion 2 is at least more than half the internal volume of the gabion, as will be appreciated by the skilled person. The device can open and close the top cover 3, and aims to facilitate the replacement of saturated filler. The openable top cover 4 is of a single-side openable type, the openable top cover 4 is fixed by bolts after being closed, and generally, one top cover is fixed by 2-4 bolts, but the invention is not limited thereto.
The top of precast concrete frame 1 exceeds the bottom of the 0 canal of irrigation canal 10 ~ 15cm, under this condition, both can prevent to irrigate the 0 canal water entering of canal, also can realize this device structure manufacturing with the lowest cost.
Referring to fig. 3, it can be understood that the device is arranged at one side end part of the channel of the irrigation canal 0 close to the external drain pipe 5, and the arrangement positions can be increased according to the regulation force. When irrigation water is discharged into a peripheral water body through a pipe duct, the irrigation water firstly enters the precast concrete outer frame 1, phosphorus-containing agricultural water is fully contacted with the iron ore filler 3, and enters a subsequent channel after contact physical and chemical adsorption. The nitrogen-phosphorus ratio of the effluent is adjusted by controlling the phosphorus concentration, the cost is extremely low compared with the method for simultaneously regulating and controlling the total phosphorus and nitrogen due to the excellent phosphorus adsorption capacity of the iron ore, but the control capacity on water eutrophication is close to that of the prior art.
The device has no energy consumption, the first filling service life is about 1 year, and the phosphorus control function can be recovered only by replacing the filler subsequently.
The method utilizes the iron ore to adsorb phosphorus in water, is suitable for reducing the amount of surplus phosphorus elements entering the water body after farmland irrigation, reduces the content of phosphorus discharged into the water body environment, lightens the load of the water body, and is beneficial to keeping the stability of the water quality of the surrounding water body for a long time; by controlling the discharge of phosphorus, the proportion of N and P in water is controlled, the propagation of algae plants with strong oxygen consumption such as green algae is inhibited, the dissolved oxygen concentration in water is improved, and the water body eutrophication preventing effect is obvious; the device is formed in a modularized mode, can be used on a pipe duct node, a main trunk or a branch line according to needs by utilizing the existing pipe duct system, is simple to maintain, and can well adapt to the requirements of total phosphorus reduction with different concentrations; the device is small, can double configuration simple tool accomplish the installation, and the later stage does not have the maintenance basically, only needs regular cleaning, but the one-man operation of filler change, and the filler that gets off of change adsorbs the phosphorus element, can regard as the phosphorus fertilizer to use, and the resource utilization degree is high.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a device that is used for control phosphorus diffusion of field irrigation canal, its characterized in that, including setting up precast concrete frame (1) in irrigation canal (0) channel, the top of precast concrete frame (1) is higher than at the bottom of irrigation canal (0) channel, be equipped with stainless steel gabion (2) in precast concrete frame (1), stainless steel gabion (2) intussuseption is filled with iron ore filler (3), the top of stainless steel gabion (2) is equipped with open-close type top cap (4).
2. The apparatus for controlling phosphorus diffusion for an agricultural irrigation ditch according to claim 1, wherein the precast concrete outer frame (1) and the stainless steel gabion (2) are rectangular frame bodies, and the stainless steel gabion (2) has a size of 500mm x 300mm x 400 mm.
3. The apparatus for controlling phosphorus diffusion for an agricultural irrigation ditch according to claim 1, wherein the iron ore filler (3) has a particle size of 4.5mm to 6.0mm and a volume weight of 3.10g/cm3The porous structure of (3).
4. The apparatus for controlling phosphorus diffusion for farmland irrigation ditches according to claim 1, wherein the open-close type top cover (4) is of a single-side open-close type, and the open-close type top cover (4) is fixed by bolts after being closed.
5. The apparatus for controlling phosphorus diffusion for an agricultural irrigation ditch according to claim 1, wherein the top of the precast concrete outer frame (1) is 10-15 cm higher than the bottom of the irrigation ditch.
6. The apparatus for controlling phosphorus diffusion for an agricultural irrigation ditch according to any one of claims 1 to 5, wherein the apparatus is disposed at an end portion of one side of the channel of the irrigation ditch (0) near the outer drain pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530560.4A CN114229944A (en) | 2021-12-15 | 2021-12-15 | Device for controlling phosphorus diffusion of farmland irrigation channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530560.4A CN114229944A (en) | 2021-12-15 | 2021-12-15 | Device for controlling phosphorus diffusion of farmland irrigation channel |
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| Publication Number | Publication Date |
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| CN114229944A true CN114229944A (en) | 2022-03-25 |
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| CN202111530560.4A Pending CN114229944A (en) | 2021-12-15 | 2021-12-15 | Device for controlling phosphorus diffusion of farmland irrigation channel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0824634A (en) * | 1994-07-13 | 1996-01-30 | Ishihara Sangyo Kaisha Ltd | Phosphorus adsorbent |
| CN103787444A (en) * | 2014-02-25 | 2014-05-14 | 合肥工业大学 | Siderite active sand dephosphorization method |
| CN110773138A (en) * | 2019-11-25 | 2020-02-11 | 华中农业大学 | Preparation method and application of resin-based supported iron oxide composite phosphorus removal adsorbent |
| CN110872138A (en) * | 2018-09-03 | 2020-03-10 | 中国科学院沈阳应用生态研究所 | Method for treating farmland drainage by applying engineering waste as PRB filler |
-
2021
- 2021-12-15 CN CN202111530560.4A patent/CN114229944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0824634A (en) * | 1994-07-13 | 1996-01-30 | Ishihara Sangyo Kaisha Ltd | Phosphorus adsorbent |
| CN103787444A (en) * | 2014-02-25 | 2014-05-14 | 合肥工业大学 | Siderite active sand dephosphorization method |
| CN110872138A (en) * | 2018-09-03 | 2020-03-10 | 中国科学院沈阳应用生态研究所 | Method for treating farmland drainage by applying engineering waste as PRB filler |
| CN110773138A (en) * | 2019-11-25 | 2020-02-11 | 华中农业大学 | Preparation method and application of resin-based supported iron oxide composite phosphorus removal adsorbent |
Non-Patent Citations (1)
| Title |
|---|
| 正和恒基: "城镇污水磷回收与达标排放的工艺技术", 江苏凤凰科学技术出版社, pages: 129 - 131 * |
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