CN220528525U - Saline-alkali soil restoration system - Google Patents
Saline-alkali soil restoration system Download PDFInfo
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- CN220528525U CN220528525U CN202322081709.6U CN202322081709U CN220528525U CN 220528525 U CN220528525 U CN 220528525U CN 202322081709 U CN202322081709 U CN 202322081709U CN 220528525 U CN220528525 U CN 220528525U
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- soil
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- 239000003513 alkali Substances 0.000 title claims abstract description 243
- 239000002689 soil Substances 0.000 title claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 187
- 239000013505 freshwater Substances 0.000 claims abstract description 71
- 238000003973 irrigation Methods 0.000 claims abstract description 65
- 230000002262 irrigation Effects 0.000 claims abstract description 65
- 238000007599 discharging Methods 0.000 claims abstract description 44
- 238000010612 desalination reaction Methods 0.000 claims abstract description 41
- 150000003839 salts Chemical class 0.000 claims abstract description 35
- 238000004064 recycling Methods 0.000 claims abstract description 14
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims description 32
- 238000000605 extraction Methods 0.000 claims description 23
- 238000011033 desalting Methods 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 10
- 238000003809 water extraction Methods 0.000 claims description 7
- 159000000007 calcium salts Chemical class 0.000 claims description 5
- 238000001223 reverse osmosis Methods 0.000 claims description 5
- 159000000000 sodium salts Chemical class 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005067 remediation Methods 0.000 claims 11
- 238000004134 energy conservation Methods 0.000 abstract description 13
- 230000009467 reduction Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- -1 calcium sulfate Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The embodiment of the utility model provides a saline-alkali soil restoration system, and belongs to the field of saline-alkali soil restoration. The saline-alkali soil restoration system comprises: a fresh water supply unit for supplying fresh water; the irrigation salt removal unit is connected with the fresh water supply unit and is used for flushing the soil of the saline-alkali soil by utilizing the fresh water provided by the fresh water supply unit; the saline-alkali water collecting unit is used for collecting the saline-alkali water in the washed soil; the input end of the saline-alkali water desalination unit is connected with the saline-alkali water collection unit and is used for treating the collected saline-alkali water so as to separate fresh water; and the output end of the saline-alkali water desalination unit is connected with the input end of the irrigation salt-discharging unit, and the irrigation salt-discharging unit is also used for recycling the fresh water separated by the saline-alkali water desalination unit. According to the embodiment of the utility model, the saline-alkali water is fully utilized while the saline-alkali soil is repaired, so that energy conservation and emission reduction are realized.
Description
Technical Field
The utility model relates to the technical field of saline-alkali soil restoration, in particular to a saline-alkali soil restoration system.
Background
Energy conservation and low carbon are future development trends, and the saline-alkali soil treatment is related to the protection red line of 18 hundred million mu of arable land in China. The existing saline-alkali soil treatment scheme generally works in a specific mode of a certain method, a certain technical means or a combination of the method and the technical means, and the like, and the saline-alkali soil is taken as a system to grasp the restoration of the saline-alkali soil as a whole.
In areas with shortage of water resources, the fresh water irrigation water consumption is limited, and the scale and effect of saline-alkali soil treatment are limited. In addition, in the saline-alkali soil restoration process, the problem of energy waste brought in the saline-alkali soil restoration process is newly considered, so that a saline-alkali soil restoration system capable of realizing energy conservation and emission reduction is needed.
Disclosure of Invention
The embodiment of the utility model aims to provide a saline-alkali soil restoration system which is used for restoring saline-alkali soil and simultaneously fully utilizing saline alkali water generated during restoration of the saline-alkali soil so as to realize energy conservation and emission reduction.
In order to achieve the above object, an embodiment of the present utility model provides a saline-alkali soil restoration system, including: a fresh water supply unit for supplying fresh water; the input end of the irrigation salt discharging unit is connected with the fresh water replenishing unit and is used for flushing soil of the saline-alkali soil by utilizing the fresh water provided by the fresh water replenishing unit; the saline-alkali water collecting unit is used for collecting the saline-alkali water in the washed soil; the input end of the saline-alkali water desalting unit is connected with the saline-alkali water collecting unit and is used for treating the collected saline-alkali water to separate fresh water; the output end of the saline-alkali water desalination unit is connected with the input end of the irrigation salt-discharging unit, and the irrigation salt-discharging unit is also used for recycling fresh water separated by the saline-alkali water desalination unit.
Optionally, the saline-alkali soil restoration system further comprises: the input end of the extraction unit is connected with the fresh water supply unit and the saline-alkali water desalination unit, and the output end of the extraction unit is connected with the irrigation salt-discharging unit and is used for extracting the fresh water provided by the fresh water supply unit and the fresh water separated by the saline-alkali water desalination unit to the irrigation salt-discharging unit.
Optionally, the extraction unit comprises a water storage tank, a first water pump and a pipeline, and the fresh water replenishing unit is connected with the water storage tank; the water inlet of the first water pump is connected with the water storage tank, and the water outlet of the first water pump is connected with the pipeline.
Optionally, the saline-alkali soil restoration system further comprises: the power generation unit is electrically connected with the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit respectively.
Optionally, the saline-alkali soil restoration system further comprises: the battery unit is respectively and electrically connected with the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit; and the control unit is used for controlling the battery unit to provide electric energy for the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit when the shortage of the generated energy of the power generation unit or the fault of the power generation unit is detected.
Optionally, the power generation unit is a photovoltaic and/or wind power generation unit.
Optionally, the photovoltaic power generation unit includes a solar panel, a controller, and an inverter; and/or the wind power generation unit comprises a wind wheel, a generator, a direction regulator, a tower, a speed limiting safety mechanism and an energy storage device.
Optionally, the saline-alkali soil restoration system further comprises: and the saline-alkali water extraction unit is connected with the output end of the saline-alkali water desalination unit and is used for extracting the saline-alkali water from which the fresh water is separated by the saline-alkali water desalination unit so as to obtain sodium salt and calcium salt.
Optionally, the saline-alkali water desalination unit is a reverse osmosis device.
Optionally, the saline-alkali water collecting unit includes: the depth of the pipeline buried in the saline-alkali soil is lower than that of the irrigation salt-discharging unit in the saline-alkali soil; a pool; and the second water pump is used for pumping the saline-alkali water collected by the water tank to the saline-alkali water desalination unit.
According to the technical scheme, the saline-alkali soil is irrigated and washed by fresh water, so that the saline-alkali soil is restored, saline-alkali water is obtained after the saline-alkali soil is washed, and in order to realize the recycling of the saline-alkali water, the embodiment of the utility model further comprises a saline-alkali water collecting unit for collecting the saline-alkali water in the washed soil; the saline-alkali water desalting unit is used for treating the collected saline-alkali water to separate fresh water; the output end of the saline-alkali water desalination unit is connected with the input end of the irrigation salt-discharging unit, and the irrigation salt-discharging unit is also used for recycling fresh water separated by the saline-alkali water desalination unit. Therefore, the embodiment of the utility model realizes the restoration of the saline-alkali soil and fully utilizes the saline-alkali water generated during the restoration of the saline-alkali soil, thereby realizing energy conservation and emission reduction.
Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, without limitation, the embodiments of the utility model. In the drawings:
FIG. 1 is a block diagram of a saline-alkali soil restoration system provided by a first embodiment of the present utility model;
FIG. 2 is a block diagram of a saline-alkali soil restoration system provided by a second embodiment of the utility model;
FIG. 3 is a block diagram of a saline-alkali soil restoration system according to a third embodiment of the present utility model;
fig. 4 is a block diagram of a saline-alkali soil restoration system according to a fourth embodiment of the present utility model.
Description of the reference numerals
10. Fresh water supply unit 11 irrigates salt discharging unit
12. Saline-alkali water collecting unit 13 saline-alkali water desalting unit
14. Extraction unit 15 power generation unit
16. Battery unit 17 control unit
18. Saline-alkali water extraction unit
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Fig. 1 is a block diagram of a saline-alkali soil restoration system according to a first embodiment of the present utility model. The saline-alkali soil restoration system comprises: a fresh water supply unit 10 for supplying fresh water; the irrigation salt discharging unit 11 is connected with the fresh water replenishing unit at the input end of the irrigation salt discharging unit 11 and is used for flushing the soil of the saline-alkali soil by utilizing the fresh water provided by the fresh water replenishing unit; a saline-alkali water collecting unit 12 for collecting saline-alkali water in the washed soil; the input end of the saline-alkali water desalination unit 13 is connected with the output end of the input end 11 of the irrigation salt-discharging unit, and is used for treating the collected saline-alkali water to separate fresh water; the output end of the saline-alkali water desalination unit 13 is connected with the input end of the irrigation salt-discharging unit 11, and the irrigation salt-discharging unit 11 is also used for recycling the fresh water separated by the saline-alkali water desalination unit.
Specifically, saline-alkali soil is a soil salinization phenomenon, and is an important difficult problem threatening the agricultural health development of China. The main reasons for forming the saline-alkali soil comprise natural reasons and artificial reasons, wherein the natural reasons comprise climate, geology, geomorphic, hydrology, hydrogeology and the like. For example, in arid and semiarid regions of northeast, northwest and North China, due to small precipitation and large evaporation capacity, salt dissolved in water is easy to accumulate on the surface layer of soil, so that saline-alkali soil is formed. The artificial reasons include irrational irrigation, such as flood irrigation during watering or only irrigation in low-lying areas, so that the underground water level rises rapidly and salt is accumulated, and the original saline-alkali soil is changed well. In addition, the salinization of soil is also aggravated to some extent by overuse of pesticides and fertilizers throughout the year, so that the restoration of saline-alkali soil is an important and difficult task.
One of the methods for repairing the saline-alkali soil is to improve by means of irrigation and salt washing, irrigate water into the saline-alkali soil according to the law that salt comes with water and goes with water, fully dissolve the saline-alkali components in the soil in a water layer with a certain depth on the surface of the topography, then drain the dissolved saline-alkali components, and reduce the salt content and alkali content of the soil. However, the water resources used in irrigation are limited, and the saline-alkali water formed after the soil is washed cannot be reused, so that the water resources are wasted. Therefore, in order to realize the recycling of energy sources while the saline-alkali soil is being repaired, the embodiment of the application uses the fresh water replenishing unit 10 as an input unit of the system, and the unit provides necessary fresh water resources for the saline-alkali soil repair. Wherein, the fresh water resource can be the river and lake water resource after desalination. Then, fresh water resources are introduced into the irrigation and salt removal unit 11, and the irrigation and salt removal unit 11 washes the soil of the saline-alkali soil by using the fresh water supplied from the fresh water supply unit 10, so that the saline-alkali components in the saline-alkali soil are sufficiently dissolved and removed. Saline-alkali water is obtained after the soil of the saline-alkali soil is washed, and the saline-alkali water in the washed soil is collected by the saline-alkali water collecting unit 12. The saline-alkali water collection unit 12 is an indispensable unit in the system, and a large amount of saline-alkali water is collected to prevent waste of water resources. The saline-alkali water desalting unit 13 is further connected with the saline-alkali water collecting unit 12 and is used for treating the collected saline-alkali water so as to separate fresh water. The output end of the saline-alkali water desalination unit 13 is connected with the input end of the irrigation salt-discharging unit 11, and the irrigation salt-discharging unit 11 is used for recycling the fresh water separated by the saline-alkali water desalination unit 13.
The irrigation salt-discharging unit 11 is a core unit of the saline-alkali soil restoration system, and has the function of flushing out salt in soil through flood irrigation so as to achieve the purpose of treating the saline-alkali soil. Furthermore, in the irrigation salt-discharging unit 11, the land parcels can be arranged to have a gradient of 1-3 per mill relative to the ground, so that fresh water automatically flows from high to low, and irrigation is easier. Filtering and draining facilities such as concealed pipes can be arranged under the ground of the irrigation and salt draining unit 11 to prevent groundwater from rising to the ground surface through capillary action. And meanwhile, the field ridge is arranged at the periphery of the land where the irrigation and salt removal unit 11 is positioned, so that the overflow of saline-alkali water is prevented.
Wherein, the saline-alkali water desalination unit 13 may be a reverse osmosis device, and may specifically be a reverse osmosis membrane. Specifically, the saline-alkali water desalination unit 13 is a recycling unit in the system, and water resource recycling is realized through reverse osmosis and other technologies.
According to the embodiment of the utility model, the saline-alkali water collection unit 12 and the saline-alkali water desalination unit 13 are arranged, so that the collection and reuse of the saline-alkali water are realized, the restoration of the saline-alkali soil is realized, the reuse of water resources is realized, and the effects of energy conservation and emission reduction are achieved.
Further, the saline-alkali water collecting unit 12 includes: the depth of the pipeline buried in the saline-alkali soil is lower than that of the irrigation salt-discharging unit in the saline-alkali soil; a pool; and a second water pump, wherein the pipeline is used for collecting the saline-alkali water in the washed soil in the water tank, and the second water pump is used for pumping the saline-alkali water collected in the water tank to the saline-alkali water desalination unit 13.
Specifically, the saline-alkali water collecting unit 12 includes a pipe buried in the ground of the saline-alkali soil in the form of a buried pipe, and in order to prevent the saline-alkali water after the irrigation and salt elimination unit 11 completes the irrigation from returning salt, the pipe is buried in the saline-alkali soil to a depth lower than that of the irrigation and salt elimination unit 11. Saline-alkali water in the washed soil is collected into a water tank, which may be a water storage tank, through a pipeline, and the collected saline-alkali water is pumped to the saline-alkali water desalination unit 13 through a second water pump. The position of the saline-alkali water collecting unit 12 is lower than that of the irrigation salt discharging unit 11, so that saline-alkali water is conveniently collected, and meanwhile, the condition that the saline-alkali water is permeated back to the irrigation salt discharging unit 11 to cause salt returning can be avoided.
Fig. 2 is a block diagram of a saline-alkali soil restoration system according to a second embodiment of the present utility model. On the basis of the first embodiment of the utility model, the saline-alkali soil restoration system further comprises: the input end of the extraction unit 14 is connected with the fresh water supply unit 10 and the saline-alkali water desalination unit 13, and the output end of the extraction unit 14 is connected with the irrigation salt-discharging unit 11 and is used for extracting fresh water provided by the fresh water supply unit 10 and the fresh water separated by the saline-alkali water desalination unit 13 to the irrigation salt-discharging unit 11.
Specifically, in order to improve the efficiency of irrigation and salt removal, the embodiment of the present utility model adds the extraction unit 14 between the fresh water supply unit 10 and the irrigation and salt removal unit 11. The extraction unit 14 is a basic unit of the system, extracts the irrigation water from the fresh water supply unit 10 and the fresh water separated from the saline-alkali water desalination unit 13 to the irrigation salt-removal unit 11, accelerates the irrigation speed of the soil of the saline-alkali soil, and improves the irrigation salt-removal efficiency.
Further, the extraction unit 14 includes a water tank, a first water pump, and a pipe, and the fresh water supply unit 10 is connected to the water tank; the water inlet of the first water pump is connected with the water storage tank, and the water outlet of the first water pump is connected with the pipeline.
Specifically, the water of the fresh water supply unit 13 may be stored in the water storage tank, and the fresh water in the water storage tank may be pumped out by the first water pump. The water storage tank can be a deep ditch dug around the saline-alkali soil, and fresh water in the first water pump is pumped to the irrigation salt-discharging unit 11 through a pipeline.
According to the embodiment of the utility model, the extraction unit 14 is additionally arranged, so that the flushing speed of salt in the soil of the saline-alkali soil is increased, and the efficiency of irrigation and salt discharge is improved.
Fig. 3 is a block diagram of a saline-alkali soil restoration system according to a third embodiment of the present utility model. On the basis of the two embodiments, the saline-alkali soil restoration system according to the embodiment of the present utility model further includes: the power generation unit 15 is electrically connected with the irrigation salt discharging unit 11, the saline-alkali water collecting unit 12, the saline-alkali water desalting unit 13 and the extraction unit 14 respectively.
Specifically, the geographical location where the saline-alkali land is located is usually wide, so that the advantages of the saline-alkali land, such as power generation by using natural resources, can be fully utilized to provide electric energy for the irrigation and salt-discharging unit 11, the saline-alkali water collecting unit 12, the saline-alkali water desalting unit 13 and the extracting unit 14. The embodiment of the utility model fully utilizes new energy sources such as light energy, wind energy and the like to carry out desalination treatment on the salinized water, and is actively explored under the large trend of energy conservation and carbon reduction.
Further, the saline-alkali soil restoration system further comprises: the battery unit 16 is electrically connected with the irrigation salt discharging unit 11, the saline-alkali water collecting unit 12, the saline-alkali water desalting unit 13 and the extracting unit 14 respectively; and a control unit 17 for controlling the battery unit 16 to supply electric power to the irrigation and salt removal unit 11, the saline-alkali water collection unit 12, the saline-alkali water desalination unit 13, and the extraction unit 14 when an insufficient power generation amount or a failure of the power generation unit 15 is detected.
Specifically, since there is a certain instability in using natural resources, in order to prevent the suspension of the restoration of the saline-alkali soil caused by the insufficient power supply of the power generation unit 15 or the failure of the power generation unit 15 in the restoration of the saline-alkali soil. Therefore, the embodiment of the utility model is further provided with a battery unit 16 and a control unit 17, wherein the control unit 17 is used for controlling the battery unit 16 to provide electric energy for the irrigation salt-discharging unit 11, the saline-alkali water collecting unit 12, the saline-alkali water desalting unit 13 and the extraction unit 14 when the shortage or the fault of the generated energy of the power generation unit 15 is detected, so that the sustainability and the stability of the saline-alkali soil restoration process are ensured.
Further, the power generation unit 15 is a photovoltaic and/or wind power generation unit. Specifically, photovoltaic power generation, wind power generation, or a combination of both may be selected based on local climate conditions. The power generation unit 15 is a power unit of the saline-alkali soil restoration system, and collects and converts light energy and wind energy of the saline-alkali soil into electric energy for other units to use.
Further, the photovoltaic power generation unit comprises a solar panel, a controller and an inverter, and photovoltaic power generation can be realized by using the prior art; and/or the wind power generation unit comprises a wind wheel, a generator, a direction regulator, a tower, a speed limiting safety mechanism and an energy storage device, and the wind power generation can be realized by utilizing the prior art. According to the embodiment of the utility model, solar energy and/or wind energy are fully utilized, the natural resources are converted into electric energy, and electric energy is provided for each unit of the saline-alkali soil restoration system, so that the purpose of saving electric energy is achieved. And, the battery unit 16 is used as a standby power supply to prevent the repair process of the saline-alkali soil from being stopped when the power generation unit 15 is insufficient in power generation or fails.
Fig. 4 is a block diagram of a saline-alkali soil restoration system according to a fourth embodiment of the present utility model. On the basis of the three embodiments, the saline-alkali soil restoration system according to the embodiment of the present utility model further includes: the saline-alkali water extraction unit 18, the saline-alkali water extraction unit 18 is an output unit of the system, and is also a waste recycling unit. The saline-alkali water extraction unit 18 is connected with the output end of the saline-alkali water desalination unit 13, and is used for extracting the saline-alkali water from which the fresh water is separated by the saline-alkali water desalination unit 13 so as to obtain sodium salt and calcium salt. In the embodiment, on the premise of meeting the requirements of energy conservation and carbon reduction, the number of each unit in the saline-alkali soil restoration system can be appropriately increased or decreased. For example, extraction unit 14 and/or saline-alkali water extraction unit 18 may be reduced.
Specifically, after the fresh water is separated by the saline-alkali water desalting unit 13, the remaining high-concentration saline-alkali water can be further processed and purified to obtain sodium salt and calcium salt. Extracted sodium salts such as sodium carbonate, sodium bicarbonate, sodium silicate; the extracted calcium salt, such as calcium sulfate, can be used as raw material in industrial production. The embodiment of the utility model can realize resource utilization of the high-concentration saline alkali water, and can effectively reduce resource waste.
According to the embodiment of the utility model, the saline-alkali soil is divided into a plurality of units, the units are organically combined and operated to be used as a whole, and a complete closed loop is formed from the standpoint of energy conservation and low carbon, so that the orderly operation of each link is ensured. And when the saline-alkali soil is restored, natural resources such as saline-alkali water resources, wind energy, solar energy and the like are recycled, so that the effects of energy conservation and emission reduction are achieved. The available saline-alkali soil area in China is about 5 hundred million mu, the waste of water resources can be greatly reduced, the electricity load is reduced, and important contribution can be made to achieving the targets of carbon peak and carbon neutralization in China. The embodiment of the utility model also solves the defects of the prior art in the aspects of energy conservation and carbon reduction, provides a novel saline-alkali soil restoration system, optimizes the structure of the saline-alkali soil restoration system, recycles fresh water resources to reduce resource waste, comprehensively utilizes high-concentration saline-alkali water to realize waste recycling, fully utilizes new energy sources such as light energy, wind energy and the like as power of the system, and highly responds to national strategic decisions in the aspects of energy conservation and carbon reduction.
According to the technical scheme, the soil of the saline-alkali soil is irrigated and washed by utilizing the fresh water, so that the restoration of the saline-alkali soil is realized. The method comprises the steps of obtaining saline-alkali water after washing soil of the saline-alkali soil, and collecting saline-alkali water in the washed soil in order to realize recycling of the saline-alkali water; the saline-alkali water desalting unit is used for treating the collected saline-alkali water to separate fresh water; the output end of the saline-alkali water desalination unit is connected with the input end of the irrigation salt-discharging unit, and the irrigation salt-discharging unit is also used for recycling fresh water separated by the saline-alkali water desalination unit. Therefore, the embodiment of the utility model realizes the restoration of the saline-alkali soil and fully utilizes the saline-alkali water generated during the restoration of the saline-alkali soil, thereby realizing energy conservation and emission reduction.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. A saline-alkali soil remediation system, characterized in that the saline-alkali soil remediation system comprises:
a fresh water supply unit for supplying fresh water;
the input end of the irrigation salt discharging unit is connected with the fresh water replenishing unit and is used for flushing soil of the saline-alkali soil by utilizing the fresh water provided by the fresh water replenishing unit;
the saline-alkali water collecting unit is used for collecting the saline-alkali water in the washed soil; and
the input end of the saline-alkali water desalination unit is connected with the saline-alkali water collection unit and is used for treating the collected saline-alkali water so as to separate fresh water;
the output end of the saline-alkali water desalination unit is connected with the input end of the irrigation salt-discharging unit, and the irrigation salt-discharging unit is also used for recycling fresh water separated by the saline-alkali water desalination unit.
2. The saline-alkali soil remediation system of claim 1, further comprising:
the input end of the extraction unit is connected with the fresh water supply unit and the saline-alkali water desalination unit, and the output end of the extraction unit is connected with the input end of the irrigation salt-discharging unit and is used for extracting the fresh water provided by the fresh water supply unit and the fresh water separated by the saline-alkali water desalination unit to the irrigation salt-discharging unit.
3. The saline-alkali soil remediation system of claim 2 wherein the extraction unit includes a reservoir, a first water pump and a conduit,
the fresh water replenishing unit is connected with the water storage tank;
the water inlet of the first water pump is connected with the water storage tank, and the water outlet of the first water pump is connected with the pipeline.
4. The saline-alkali soil remediation system of claim 2, further comprising:
the power generation unit is electrically connected with the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit respectively.
5. The saline-alkali soil remediation system of claim 4, further comprising:
the battery unit is respectively and electrically connected with the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit; and
and the control unit is used for controlling the battery unit to provide electric energy for the irrigation salt discharging unit, the saline-alkali water collecting unit, the saline-alkali water desalting unit and the extraction unit when the shortage of the generated energy of the power generation unit or the fault of the power generation unit is detected.
6. The saline-alkali soil remediation system of claim 4 wherein the power generation unit is a photovoltaic and/or wind power generation unit.
7. The saline-alkali soil remediation system of claim 6 wherein the photovoltaic power unit includes a solar panel, a controller, and an inverter; and/or
The wind power generation unit comprises a wind wheel, a generator, a direction regulator, a tower, a speed limiting safety mechanism and an energy storage device.
8. The saline-alkali soil remediation system of claim 1, further comprising:
and the saline-alkali water extraction unit is connected with the output end of the saline-alkali water desalination unit and is used for extracting the saline-alkali water from which the fresh water is separated by the saline-alkali water desalination unit so as to obtain sodium salt and calcium salt.
9. The saline-alkali soil remediation system of claim 1 wherein the saline-alkali water desalination unit is a reverse osmosis unit.
10. The saline-alkali soil remediation system of claim 1 wherein the saline-alkali water collection unit includes: the depth of the pipeline buried in the saline-alkali soil is lower than that of the irrigation salt-discharging unit in the saline-alkali soil; a pool; a second water pump is arranged on the bottom of the water tank,
the pipeline is used for collecting the saline-alkali water in the washed soil in the water tank, and the second water pump is used for pumping the saline-alkali water collected in the water tank to the saline-alkali water desalting unit.
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Address after: 255071 Room 501, Baofeng building, No.18, Baofeng Road, Zhangdian District, Zibo City, Shandong Province Patentee after: Sinochem Environmental Remediation (Shandong) Co.,Ltd. Country or region after: China Address before: Room 501, Baofeng Building, No. 18, Baofeng Road, Zhangdian District, Zibo City, Shandong Province, 255009 Patentee before: Shandong Dacheng environmental remediation Co.,Ltd. Country or region before: China |