KR20090129691A - Automatic fertilizing system using the recycling of agricultural water and purification technology of polluted drainage water - Google Patents

Abstract

PURPOSE: An automatic fertilizing system is provided to save water and to reduce the fertilizer application amount remarkably by using the recycled agricultural drainage water. CONSTITUTION: An automatic fertilizing system comprises a water-collection place(10); a water supply channel(20) provided with a water inlet hole(21); and a drainage channel provided with a water outlet hole. The water-collection place comprises a measuring device(11) measuring the flux and water quality at the position connected with the water supply channel; a fertilizer inlet port(12); a pump(13) connected with the water supply channel for pumping the water mixed with a fertilizer to the farmland(1); a guide hole(15) collecting the water from the drainage channel; and a supplemental water supply channel supplying water from a river(2) to the water-collection place.

Description

Automatic fertilizing system using the recycling of agricultural water and purification technology of polluted drainage water}

The present invention relates to an automatic fertilization system that recycles agricultural drainage, and collects the agricultural discharged water into a collecting pond and reuses it by supplying it to agricultural land through a pump. By installing an automated facility for measurement and control, soluble fertilizers were added to supply standard fertilizers suitable for the characteristics and growth time of the crops so that they could be dissolved and supplied to agricultural water.

In general, agricultural water is returned to a stream after use, and nitrogen and phosphorus substances contained in agricultural waste water discarded after use in agriculture are the main pollutants that cause eutrophication in rivers, but are a major fertilizer in agricultural land. In particular, phosphorus is acting as a limiting factor for eutrophication in stagnant waters such as lakes, and most lakes in Korea are incapable of improving water quality without reducing phosphorus in the agricultural sector. In addition, 47% of the total water resources used in Korea are agricultural water, and about 45% of them are returned to the rivers, which is the main cause of river water pollution.

In addition, fertilizer application several times during the growing season of paddy farming depends on artificial spreading, which leads to many difficulties in rural areas where labor is scarce, which leads to a decrease in productivity.

The present invention relates to an automatic fertilization system recycled agricultural drainage, which saves water resources by recycling the water resources used in traditional rice paddy agriculture in Korea, and reduces the inflow of polluted agricultural drainage streams to improve the water quality of the rivers By creating a good river environment and dispersing fertilizer materials in water during the reuse of agricultural drainage, the fertilization method can be automated to reduce labor. In addition, fertilizer materials can be used in the reuse process as much as the fertilizer materials included in agricultural drainage, thereby reducing the overall fertilizer consumption. In addition, water quality and flow sensors will be installed at each major point of the reservoir and irrigation and drainage facilities to enable automatic management of the appropriate amount of water and fertilization when needed, and to enable remote management to achieve innovation in paddy agriculture.

In addition, agricultural drainage, which is finally discharged inevitably, can greatly contribute to improving the water quality of discharged rivers by removing phosphorous substances by installing natural wetland and flocculation sedimentation.

The present invention is an agricultural water supply and drainage system having a sump (集 水池),

Reservoir 10 for collecting the water to be supplied to the arable land (1); A water supply passage 20 connected to the reservoir 10 to supply water to farmland; And a drainage path 30 through which the water of the arable land 1 is discharged. It consists of

The reservoir 10 is a measuring device 11 for measuring the flow rate and the water quality in the portion connected to the water supply passage 20;

A fertilizer inlet 12 connected to the measuring device 11 for inputting an appropriate amount of fertilizer by reflecting the measurement result of the flow rate and the water quality;

A pump 13 connected to the water supply passage 20 to pump water mixed with the fertilizer introduced into the arable land 1;

Induction port 15 for collecting the water coming down the drainage path (30); And

A separate supplementary water supply path 14 for collecting water from the river 2 and supplying it to the reservoir 10;

The water supply passage 20 is provided with a water supply port 21 for supplying water for each arable land (1),

The drainage path 30 provides an automatic fertilization system for recycling agricultural drainage, characterized in that it comprises; a drain port 31 for discharging water from each of the arable land (1) to the drainage path (30).

Using the present invention as described above can obtain the following effects.

First, it can save about 60 billion m ³ of water per year if applied to the entire country nonnongeop areas by reusing the river regression rate of agricultural approximately 45%.

Second, river pollution caused by water pollutants such as nitrogen and phosphorus in agricultural drainage can be greatly reduced. It can save 20 ~ 30% of the fertilizer use and can prevent water pollution.

Third, the amount of fertilization can be saved by recycling agricultural drainage.

Fourth, by changing the fertilization method from the powder spray type to the dissolved irrigation type, it is possible to always manage as an automatic measurement and control facility so as to meet the standard fertilization amount. Can be.

Fifth, it is possible to innovate agricultural sectors that lack manpower and funds by automating and remotely managing the water supply and fertilization methods.

Sixth, it is possible to greatly contribute to the improvement of the water quality of the river by removing the phosphorus material by installing a reservoir wetland and flocculation sedimentation for the discharge water inevitable.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a plan view of using a dedicated water supply drainage of the embodiment of the automatic fertilization system recycled agricultural drainage according to the present invention, Figure 2 is a mixed feed of an embodiment of the automatic fertilization system recycled agricultural drainage according to the present invention Figure 3 is a plan view of the use of the drainage path, Figure 3 is a plan view of a reservoir applied to the automatic fertilization system recycled agricultural drainage according to the present invention, Figure 4 is a drainage treatment applied to the automatic fertilization system recycled agricultural drainage according to the present invention It is a top view of the ground.

As shown in the drawings, the present invention is composed of a catchment reservoir 10, a water supply passage 20, and a drainage passage 30 or a water supply drainage passage 40, and may further include a drainage treatment sheet 50. It relates to an automatic fertilization system that recycles agricultural drainage.

Hereinafter, each invention will be described according to specific examples.

Example 1

The present invention collects water to be supplied to the arable land (1) (10); A water supply passage 20 connected to the reservoir 10 to supply water to farmland; And as an agricultural water supply and drainage system consisting of a drainage path 30 for discharging the water of the arable land (1),

A measuring device (11) for measuring a flow rate and water quality at a portion connected to the water supply passage (20); A fertilizer inlet 12 connected to the measuring device 11 for inputting an appropriate amount of fertilizer by reflecting the measurement result of the flow rate and the water quality; A pump 13 connected to the water supply passage 20 to pump water mixed with the fertilizer introduced into the arable land 1; Induction port 15 for collecting the water coming down the drainage path (30); And a supplementary water supply path 14 for collecting water from the river 2 and supplying it to the reservoir 10.

Water supply passage 20 having a water supply port 21 for supplying water to each arable land (1) and

It provides an automatic fertilization system recycled agricultural drainage, characterized in that consisting of a drainage passage 30 having a drainage port 31 for discharging water from each arable land (1) to the drainage passage (30).

In this embodiment, the dedicated water supply passage 20 and the dedicated drainage passage 30 are provided separately.

Reservoir 10 is a device where water to be supplied to arable land 1 is collected and recycled water used in arable land 1 or stored separately using natural oil or pumps in river 2. to be. It can usually be made in the same way as the artificial lake by excavation around the arable land and the size can vary depending on the size of the arable land (1) and the shape is not limited. However, in order to suppress the generation of algae, it is preferable to install a light shielding film and to install an air injection chamber (Aerator) 17, and may have a screen 16 capable of filtering suspended matter such as suspended matter or phytoplankton. have. However, for the practice of the present invention, it is preferable that the reservoir 10 is located downstream so that the water used in the cultivated land 1 can be collected in the reservoir 10 due to natural dripping.

Measuring device (Sensor) 11 is to maintain a suitable fertilizer concentration when supplying the water of the reservoir 10 to the arable land (1), which measures the flow rate and water quality provided to the arable land (1) Estimate the supply of fertilizer. When the amount of fertilizer is calculated by the measuring device 11, the fertilizer is introduced into the fertilizer inlet 12, and the injected fertilizer is soluble in water, so it is well dissolved in water and connected to the water supply passage 20 (pump, 13) is supplied to the arable land (1). Therefore, the fertilizer inlet 12 may be provided with a Mix (Mix) device so that the fertilizer is well dissolved in water. The water quality measurement of the sensor 11 includes water temperature, dissolved oxygen, EC, pH, ammonia, nitrogen nitrate, total nitrogen, dissolved phosphorus, total phosphorus, COD, TOC, sulfate ion, fluorine ion, salt, Cu, Ni, Co, Zn, Mn, Ca, Cd, Hg, Pb components can be measured all or selectively.

Water is supplied to the sump (10) through the replenishment water supply passage 14 directly from the surrounding river (2), or the water used and drained from the arable land (1) by using the inlet (15) It is pulled into the sump (10). The induction port 15 exists between the reservoir 10 and the drainage path 30, and in case of capturing water, it blocks the flow of water in the drainage path 20 where the induction hole 15 is located and the water flows. Flow toward tool (15). In addition, the salping screen 16 serves to filter the water flowing into the reservoir 10, it is preferable to let the water introduced by the induction port 15 and the supplemental water supply passage (14). In addition, in order to increase the amount of dissolved oxygen, it is preferable to install an air injection chamber (Aerator) 17 in the reservoir 10.

The water supply passage 20 is connected to the reservoir 10 and serves to supply the water of the reservoir 10 to the arable land 1 and generally has a shape similar to a pipe. Since the reservoir 10 is downstream from the arable land, water is supplied to the water supply path 20 by the pump 13.

In the case of using a dedicated water supply and drainage channel as in the present embodiment, the water supply passage 20 is provided with a water supply port 21 in the upper portion of each arable land 1 so as to supply water to each arable land 1. In addition, each water supply port 21 may be further provided with a measurement and additional fertilizer dosing device 22 for further supplying fertilizer by measuring the flow rate and water quality. This is because each arable land (1) is generally grown to the same crop, but may also grow different crops, so the type or amount of fertilizer to be put into each arable land (1) may be different, so the water supply port connected to each arable land (1) 21 may be provided with a measurement and additional fertilizer dosing device 22, respectively.

Drainage (30) is a place where the water used in each arable land (1) is discharged is generally located along the side of each arable land (1) and connected to the adjacent river (2), usually up and down the arable land (1) It is a long excavation in the longitudinal direction, and it is generally possible to have a natural load.

A drainage port 31 is provided for each arable land 1 so as to drain the water of each arable land 1 at a downstream portion of each arable land among the portions adjacent to each arable land 1 and the drainage path 30.

The water inlet 21 is openable and open only when water is supplied to each arable land 1, and the drain 31 is also openable and open only when water is discharged from the arable land 1. desirable.

Example 2

The present invention is an agricultural water supply and drainage system having a sump,

Reservoir 10 for collecting the water to be supplied to the arable land (1); A water supply passage 20 connected to the reservoir 10; And a water supply and drainage passage 40 through which water from the arable land 1 is discharged or supplied from the water supply passage 20,

A measuring device (11) for measuring a flow rate and water quality at a portion connected to the water supply passage (20); A fertilizer inlet 12 connected to the measuring device 11 for inputting an appropriate amount of fertilizer by reflecting the measurement result of the flow rate and the water quality; A pump 13 connected to the water supply passage 20 to pump water mixed with the fertilizer introduced to the upper portion of the water supply and drainage passage 40; Induction port 15 for collecting the water coming down the water supply and drainage (40); And a supplementary water supply path 14 for collecting water from the river 2 and supplying it to the reservoir 10.

A water supply passage 20 having a water supply port 21 for supplying water to an upper portion of the water supply and drainage passage 40;

A water supply passage 41 for supplying water to each arable land 1 while the water supplied by the water supply passage 20 flows; It provides an automatic fertilization system for recycling agricultural drainage, characterized in that consisting of a water supply and drainage passage (40) comprising;

In this embodiment, if water is supplied to the upper portion of the water supply and drainage passage 40 without directly supplying water to each arable land 1 from the water supply passage 20, the water flows downstream by natural dripping and water to each arable land 1. It depends on how it is used.

The reservoir 10 is the same as the above [Example 1].

The water supply passage 20 is connected to the collecting reservoir 10 as described above, but the water supply port 21 is not provided for each arable land 1 and is located upstream of the water supply drainage passage 40 to supply water to the water supply drainage passage 40. To supply. In addition, in [Example 2], unlike [Example 1], the water supply port 21 supplies only water, and does not include the measurement and additional fertilizer injection device 22, and separate water supply ports adjacent to each arable land 1 are provided. Additional measurement and fertilizer dosing devices 22 can be purchased at 41.

The water supply and drainage passage 40 flows not only the water supplied from the water supply passage 20 downstream by natural flow but also the water drained from each arable land 1. The water supply and drainage path 40 is generally connected to the adjacent river 2, and is generally located long along the arable land 1 in the up and down direction.

The water supplied from the water supply passage 20 is provided with a separate water supply port 41 in an upstream portion of each of the arable land 1 and the water supply and drainage passage 40 adjacent to each other, thereby supplying water from the water supply passage 20 that was naturally falling. The cultivated lands 1 are supplied to these fields. The feeding method is based on a method of blocking the flow of water in the water supply and drainage channel 40 adjacent to the separate water supply port 41 and inducing water in the direction of the arable land 1, such as the method using the salping induction port 15. And the separate water supply port 41 may be provided with a measurement and additional fertilizer dosing device (22). This is because each arable land (1) generally grows the same crop, but different crops may be grown because different types or amounts of fertilizer to be fed to each arable land (1) may be used. (41) may be provided with a measurement and additional fertilizer dosing device (22). In addition, since the drained water flows through the water supply and drainage passage 40, each of the arable land 1 and the water supply and drainage passage 40 are provided with a separate drainage port 42 in a downstream portion of the adjacent portion, respectively, to drain the remaining water used in the farmland 1. Done.

The water supply port 21, the separate water supply port 41 and the separate drain port 42 is open and close, respectively, when supplying water to the arable land (1) only the water supply port 21 and the separate water supply port 41 is opened In the case of draining the water from the arable land 1, it is preferable that only the separate drain port 42 is opened. This is because the water supply to be supplied to the arable land (1) and the drainage from the arable land (1) in the water supply and drainage (40) is not mixed because it is possible to use efficiently.

Example 3

The present invention may further include a waste paper 50 in [Example 1] or [Example 2].

Drainage treatment paper 50 is composed of a marsh 52 and the settling tank 53, the connector 51 for supplying the water drained from the reservoir 10 to the marsh 52; A connection passage 55 for flowing water from the wetland 52 to the settling tank 53; The discharge port 54 for discharging the purified water in the settling tank 53 is provided. The sedimentation tank 53 is composed of a rapid mixing tank for mixing flocculant with water by a rapid stirring motor, and a slow stirring tank for inducing solid flotation and a sedimentation basin for sedimentation of the sludge floc and periodically removing sediment sludge at the bottom of the sedimentation basin. It is composed of a drawing pump for The wastewater treatment paper 50 is for purifying water pollutants in the final discharged water discarded as surplus water in the reservoir 10, and particularly for the removal of phosphorus.

The wetland 52 is preferably a natural wetland, it is preferable to plant water purification plants in the water. Purifying plants include buds, irises, broxams, buttercups, reeds, and bamboo. The settling tank 53 is composed of a mixing section and a settling section for mixing and flocculating the fine contaminants in the water to settle and remove. The mixing part has a rapid stirrer and a slow stirrer and is operated by a motor capable of adjusting the rotation speed. As the flocculant, aluminum sulfate, PAC, polymer polymer, etc. may be used, and caustic soda, nitric acid, and slaked lime may be used for pH control.

Example 4

The present invention is provided with a sensor in each component of the above [Example 1] or [Example 2] to enable remote control and automatic control.

Measuring device 11, fertilizer inlet 12, pump 12, induction port 15, water inlet 21, measuring and additional fertilizer inlet device 22, drain 31, separate water supply port 41 And separate drain 42 is a structure that can be remotely controlled by each having a sensor,

The fertilizer inlet 12, the pump 12, the induction port 15, the water supply port 21, the measurement and additional fertilizer input device 22, the drain port 31 by measuring the flow rate and the water quality in the measuring device 11 ), And an automatic fertilization system for recycling agricultural drainage, characterized in that the automatic control of the separate water supply port 41 and the separate drain port 42 is possible.

1 is a plan view of using a dedicated water supply and drainage of the embodiment of the automatic fertilization system recycled agricultural drainage according to the present invention.

Figure 2 is a plan view of using a mixed water supply drainage of the embodiment of the automatic fertilization system recycled agricultural drainage in accordance with the present invention.

3 is a plan view of a sump applied to an automatic fertilization system for recycling agricultural drainage according to the present invention.

Figure 4 is a plan view of the wastewater treatment paper applied to the automatic fertilization system recycled agricultural drainage according to the present invention.

<Brief description of symbols for the main parts of the drawings>

1: Arable land (field) 2: River (water source)

10: catchment 11: measuring device

12: Fertilizer inlet 13: Pump

14: Replenishment water supply passage 15: Yuyu

16: Screen 17: Air injection room

20: water supply passage 21: water supply port

22: Measurement and additional fertilizer dosing device 30: Drainage

31: Drainage 40: Drainage

41: Drainage 42: Drainage

50: wastewater treatment sheet 51: connector

52: Wetland 53: Precipitation tank

54: outlet 55: connection path

Claims (7)

An agricultural water supply and drainage system having a sump, Reservoir 10 for collecting the water to be supplied to the arable land (1); A water supply passage 20 connected to the reservoir 10 to supply water to farmland; And Consists of the drainage path 30 is discharged water of the arable land (1), The reservoir 10 is a measuring device 11 for measuring the flow rate and the water quality in the portion connected to the water supply passage (20); A fertilizer inlet 12 connected to the measuring device 11 for inputting an appropriate amount of fertilizer by reflecting the measurement result of the flow rate and the water quality; A pump 13 connected to the water supply passage 20 to pump water mixed with the fertilizer introduced into the arable land 1; Induction port 15 for collecting the water coming down the drainage path (30); And A separate supplementary water supply path 14 for collecting water from the river 2 and supplying it to the reservoir 10; The water supply passage 20 is provided with a water supply port 21 for supplying water for each arable land (1), The drainage path 30 is an automatic fertilization system for recycling agricultural drainage, characterized in that it comprises; a drain port 31 for discharging water from each of the arable land (1) to the drainage path (30). Agricultural water supply and drainage system with a sump, Reservoir 10 for collecting the water to be supplied to the arable land (1); A water supply passage 20 connected to the reservoir 10; And The water of the arable land (1) is discharged or made of a water supply and drainage passage 40 receives water from the water supply passage 20, The reservoir 10 is a measuring device 11 for measuring the flow rate and the water quality in the portion connected to the water supply passage (20); A fertilizer inlet 12 connected to the measuring device 11 for inputting an appropriate amount of fertilizer by reflecting the measurement result of the flow rate and the water quality; A pump 13 connected to the water supply passage 20 to pump water mixed with the fertilizer introduced to the upper portion of the water supply and drainage passage 40; Induction port 15 for collecting the water coming down the water supply and drainage (40); And A separate supplementary water supply path 14 for collecting water from the river 2 and supplying it to the reservoir 10; The water supply passage 20 has a water supply port 21 for supplying water to the upper portion of the water supply and drainage passage 40, The water supply and drainage passage 40 includes a separate water supply port 41 for supplying water to each arable land 1 while the water supplied by the water supply passage 20 flows; And Automatic fertilization system recycled agricultural drainage, characterized in that it comprises; a separate drain (42) for discharging water from each arable land (1) to the water supply drainage (40). In claim 1, Each of the water inlets 21 is further provided with a measurement and additional fertilizer dosing device 22 for measuring the flow rate and water quality and supply additional fertilizer, The replenishment water supply passage 14 further includes a pump 13, The catchment 10 includes a screen 15 for filtering water introduced from the drainage passage 30 or the supplemental water supply passage 14; And And an air injection chamber (16) for generating air to be supplied to the water passing through the screen (15). In claim 2, Each of the separate water supply port 41 is further provided with a measurement and additional fertilizer dosing device 22 for measuring the flow rate and water quality and supply additional fertilizer, The replenishment water supply passage 14 further includes a pump 13, The catchment 10 includes a screen 16 for filtering water introduced from the water supply and drainage passage 40 or the supplemental water supply passage 14; And And an air injection chamber (17) for generating air to be supplied to water passing through the screen (16). The method according to any one of claims 1 to 4, A sedimentation tank for sedimentation and separation of the flocculated floc equipped with a rapid stirrer and a slow stirrer for mixing the wetland 52 and the coagulant mixed with the wetland 52 to purify the remaining water from the reservoir 10 to the river. Further provided with a waste treatment paper (50) consisting of (53), The drainage paper 50 has a connector 51 for discharging water from the catchment 10 to the wetland 52; A connection passage 55 connecting the wetland 52 and the settling tank 53; And An outlet port 54 connected to the settling tank 53; Automatic fertilization system recycled agricultural drainage, characterized in that provided with. In claim 5, The wetland 52 is a plant for water purification, one or more of the bud, iris, broxam, buttercup, reed, bamboo is planted, In the precipitation tank 53, aluminum sulfate, PAC or polymer polymer is added as a flocculant for flocculation and sedimentation of contaminants, and one or two or more of caustic soda, nitric acid and slaked lime are added to adjust pH. Recycling fertilization system. The method according to any one of claims 1 to 4, The measuring device 11, fertilizer inlet 12, pump 12, induction port 15, water supply port 21, measuring and additional fertilizer input device 22, drain 31, separate water supply port 41 ) And separate drain port 42 is a structure that can be remotely controlled by each having a sensor, The fertilizer inlet 12, the pump 12, the induction port 15, the water supply port 21, the measurement and additional fertilizer input device 22, the drain port 31 by measuring the flow rate and the water quality in the measuring device 11 ), Automatic fertilization system recycled agricultural drainage, characterized in that the automatic control of the separate water supply port 41 and the separate drain port (42).

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