Saline alkali soil environment and ecology restoration system

Abstract

The utility model relates to the technical field of saline-alkali soil remediation, and discloses a saline-alkali soil environment and ecological remediation system which comprises a salt discharging pipe, a salt discharging ditch, a water treatment chamber, a first lifting conveying assembly, a water collecting tank, a first treatment box, activated carbon, a second treatment box, a flat plate ceramic membrane filtering assembly and a second lifting conveying assembly. Through the arrangement of the structure, the effects of collecting and desalting leaching water discharged after salt leaching are realized, and the desalted leaching water forms fresh water, so that the fresh water can be recycled, and the problem of shortage of fresh water resources is favorably relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of saline-alkali soil restoration, in particular to a saline-alkali soil environment and ecological restoration system. Background Art

[0002] Saline-alkali land is soil with excessive water-soluble salt content. It possesses a complete ecosystem and negatively impacts the potential utilization of land resources. Excessive salinity and alkalinity can negatively impact the physical and chemical properties of the soil. Domestic saline-alkali land environmental and ecological restoration and improvement methods can be broadly categorized as physical, chemical, and biological. Freshwater salt washing is one of the physical methods for saline-alkali land improvement.

[0003] Freshwater salt washing is to introduce fresh water into saline-alkali land, dilute the salt through irrigation and discharge the water. This method usually requires a large amount of freshwater resources. Therefore, for areas with tight freshwater resources, how to recycle the washing water discharged after salt washing is a particularly important issue at present. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a saline-alkali soil environment and ecological restoration system to solve the problems existing in the above-mentioned prior art.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a saline-alkali soil environment and ecological restoration system, comprising a salt drainage pipe buried in saline-alkali soil, and further comprising:

[0007] A salt drainage ditch, wherein the salt drainage ditch is buried in saline-alkali soil, and the top of the side wall thereof is connected to the end of the salt drainage pipe;

[0008] A water treatment chamber is provided on one side of the salt drainage ditch. A lifting and conveying component 1 is provided in the water treatment chamber. One end of the lifting and conveying component 1 extends into the salt drainage ditch, and the other end is connected to a water collecting tank.

[0009] a treatment box 1, wherein the top of the treatment box 1 is connected to the bottom of the water collecting tank, and the treatment box 1 is provided with activated carbon;

[0010] Treatment box 2, the top of which is connected to the bottom of treatment box 1, a flat ceramic membrane filter assembly is provided in treatment box 2, the outlet pipe of which is connected to lifting and conveying assembly 2, and the end of lifting and conveying assembly 2 extends above the surface of saline-alkali soil.

[0011] Furthermore, the bottom of the second processing box is connected to a discharge pipe, a valve is provided on the discharge pipe, and a collection pit is correspondingly provided at the end of the discharge pipe.

[0012] Furthermore, a lifting and conveying component three is provided in the water treatment chamber, one end of the lifting and conveying component three extends into the collection pit, and the other end extends above the surface of the saline-alkali soil.

[0013] Furthermore, the salt drainage ditch includes a ditch body buried in saline-alkali soil, and one end of the lifting and conveying component extends into the ditch body; a plurality of ditch cover plates arranged side by side are provided on the top of the ditch body.

[0014] Furthermore, the trench cover is provided with through holes, and the trench cover is covered with a permeable geotextile.

[0015] Furthermore, an impermeable geotextile is laid under the salt drainage pipe.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] The utility model realizes the effect of collecting and desalinating the rinsing water discharged after salt washing by arranging a salt discharge pipe, a salt discharge ditch, a water treatment chamber, a lifting and conveying component 1, a water collecting tank, a treatment box 1, activated carbon, a treatment box 2, a flat ceramic membrane filter component and a lifting and conveying component 2. The desalinated rinsing water becomes fresh water, which can be recycled and utilized, which is conducive to alleviating the problem of tight fresh water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a main cross-sectional view of the saline-alkali soil environment and ecological restoration system of the utility model;

[0020] Figure 2 It is a side sectional view of the salt drainage ditch of the utility model.

[0021] Explanation of reference numerals: 1. Salt drainage pipe; 2. Salt drainage ditch; 201. Ditch body; 202. Ditch cover; 2021. Through hole; 203. Permeable geotextile; 3. Water treatment chamber; 4. Lifting and conveying assembly 1; 41. Mounting base 1; 42. Pump body 1; 43. Conveying pipe 1; 44. Conveying pipe 2; 5. Water collecting tank; 6. Treatment tank 1; 7. Activated carbon; 8. Treatment tank 2; 9. Flat ceramic membrane filter assembly; 901. Outlet pipe ; 10. Lifting and conveying component two; 101. Mounting seat two; 102. Pump body two; 103. Conveying pipe three; 11. Diversion pipe one; 12. Support frame; 13. Diversion pipe two; 14. Discharge pipe; 15. Valve; 16. Collection pit; 17. Lifting and conveying component three; 171. Mounting seat three; 172. Pump body three; 173. Conveying pipe four; 174. Conveying pipe five; 18. Impermeable geotextile; 19. Manhole cover. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-Figure 2 As shown, this embodiment discloses a saline-alkali soil environment and ecological restoration system, including a salt drainage pipe 1 and a salt drainage ditch 2 buried in the saline-alkali soil, the top of the side wall of the salt drainage ditch 2 is connected to the end of the salt drainage pipe 1; a water treatment chamber 3 is arranged on one side of the salt drainage ditch 2, and a lifting and conveying component 4 is provided in the water treatment chamber 3, one end of the lifting and conveying component 4 extends into the salt drainage ditch 2, and the other end is connected to a water collecting tank 5; the top of the treatment box 1 6 is connected to the bottom of the water collecting tank 5, and activated carbon 7 is provided in the treatment box 1 6; the top of the treatment box 2 8 is connected to the bottom of the treatment box 1 6, and a flat ceramic membrane filter component 9 is provided in the treatment box 2 8, and the outlet pipe 901 of the flat ceramic membrane filter component 9 is connected to the lifting and conveying component 2 10, and the end of the lifting and conveying component 2 10 extends above the surface of the saline-alkali soil.

[0024] In this embodiment, the lifting and conveying component 4 is used to pump the rinsing water in the salt drainage ditch 2 into the water collecting tank 5; the water collecting tank 5 is fixed in the water treatment chamber 3, and the water collecting tank 5 is used to collect the rinsing water in the salt drainage ditch 2.

[0025] The activated carbon 7 is set as plate-type activated carbon, which is prepared by using an acidic activator such as phosphoric acid, so that the surface of the plate-type activated carbon is mainly composed of acidic groups, which can autonomously adsorb the surrounding alkaline substances.

[0026] The flat ceramic membrane filter assembly 9 is used to filter the salt in the rinse water. The filtered fresh water is discharged through the outlet pipe 901 and is pumped above the surface of the saline-alkali soil through the lifting and conveying assembly 2 10.

[0027] It should be noted that the flat ceramic membrane filtration assembly 9 is a prior art, and its working principle and usage are well known and will not be described in detail here.

[0028] The working process of the above technical solution is as follows: when washing salt with fresh water, the salt and alkali in the saline-alkali soil follow the water flow into the salt drainage pipe 1, and then enter the salt drainage ditch 2 through the salt drainage pipe 1; the leaching water in the salt drainage ditch 2 is pumped to the water collecting tank 5 for collection through the lifting and conveying component 1; the leaching water in the water collecting tank 5 can flow to the treatment box 1 6, and the alkali in the leaching water is removed by the activated carbon 7; the leaching water after the alkali is removed enters the treatment box 2 8, and the salt in the leaching water is filtered by the flat ceramic membrane filter component 9 in the treatment box 2 8, and the filtered fresh water enters the outlet pipe 901 and is pumped through the lifting and conveying component 2 10; the concentrated water with high salinity is retained in the treatment box 2 8.

[0029] By adopting this solution and setting up the above-mentioned structure, the washing water discharged after salt washing can be collected and desalinated. The desalinated washing water becomes fresh water, which can be recycled and utilized, which is conducive to alleviating the problem of fresh water resource shortage.

[0030] To further optimize the solution, the bottom of the water collecting box 5 is fixedly connected to a guide pipe 11, the end of the guide pipe 11 is fixedly connected to the top of the treatment box 6, and the end of the guide pipe 11 is flush with the inner wall of the treatment box 6; the inner wall of the treatment box 6 is fixed with a support frame 12, and the end of the plate activated carbon 7 is placed on the support frame 12; the support frame 12 is provided to facilitate the installation and disassembly of the plate activated carbon 7; the bottom of the treatment box 6 is fixedly connected to a guide pipe 2 13, the guide pipe 2 13 is located below the activated carbon 7, and the end of the guide pipe 2 13 is fixedly connected to the top of the treatment box 2 8.

[0031] A further optimized solution is that the lifting and conveying assembly 4 includes a mounting base 41 fixed in the water treatment chamber 3, on which a pump body 42 is fixedly mounted. The water inlet of the pump body 42 is fixedly connected to a delivery pipe 43, the end of which extends into the salt drainage ditch 2. The water outlet of the pump body 42 is fixedly connected to a delivery pipe 2 44, the end of which is fixedly connected to the top of the side wall of the water collection tank 5. The arrangement of the pump body 42, delivery pipe 1 43, and delivery pipe 2 44 enables the rinse water in the salt drainage ditch 2 to be lifted and conveyed to the water collection tank 5.

[0032] To further optimize the solution, the lifting and conveying component 2 10 includes a mounting base 2 101 fixed in the water treatment chamber 3, and a pump body 2 102 is fixedly installed on the mounting base 2 101. The water inlet end of the pump body 2 102 is fixedly connected to the end of the outlet pipe 901, and the water outlet end of the pump body 2 102 is fixedly connected to the conveying pipe 3 103, and the end of the conveying pipe 3 103 extends above the surface of the saline-alkali soil.

[0033] To further optimize the solution, a discharge pipe 14 is fixedly connected to the bottom of the second processing box 8 , a valve 15 is fixedly installed on the discharge pipe 14 , and a collection pit 16 is correspondingly provided at the end of the discharge pipe 14 .

[0034] In this embodiment, when a large amount of concentrated water remains in the second treatment tank 8 , the concentrated water in the second treatment tank 8 can be discharged into the collection pit 16 by opening the valve 15 .

[0035] To further optimize the solution, a lifting and conveying component 3 17 is provided in the water treatment chamber 3 , one end of the lifting and conveying component 3 17 extends into the collection pit 16 , and the other end extends above the surface of the saline-alkali soil.

[0036] In this embodiment, the lifting and conveying assembly 3 17 is used to pump the concentrated water in the collection pit 16 to above the saline-alkali ground, so that the concentrated water can be recovered.

[0037] To further optimize the solution, the lifting and conveying component three 17 includes a mounting base three 171 fixed in the water treatment chamber 3, a pump body three 172 is fixedly installed on the mounting base three 171, the water inlet end of the pump body three 172 is fixedly connected to a delivery pipe four 173, the end of the delivery pipe four 173 extends to the collection pit 16, the water outlet end of the pump body three 172 is fixedly connected to a delivery pipe five 174, the end of the delivery pipe five 174 extends above the surface of the saline-alkali soil.

[0038] According to a further optimized solution, the salt drainage ditch 2 includes a ditch body 201 buried in saline-alkali soil, and one end of the lifting and conveying component 4 extends into the ditch body 201; a plurality of ditch cover plates 202 arranged side by side are provided on the top of the ditch body 201.

[0039] In this embodiment, the end of the conveying pipe 43 extends into the trench body 201 , a through hole 2021 is provided on the trench cover 202 , and the trench cover 202 is covered with a permeable geotextile 203 .

[0040] By adopting this solution, the trench cover 202 and the through hole 2021 provided on the trench cover 202 can allow the leaching water during salt washing to directly enter the trench body 201 through the through hole 2021, thereby improving the collection effect of the leaching water; by providing the permeable geotextile 203, the saline-alkali soil can be intercepted while ensuring the passage of the leaching water, thereby preventing the saline-alkali soil from entering the trench body 201.

[0041] As a further optimization, the number of salt drainage pipes 1 can be set to multiple, with multiple salt drainage pipes 1 arranged horizontally and spaced apart, and the ends of the multiple salt drainage pipes 1 are fixedly connected to the top of the side wall of the ditch body 201; an impermeable geotextile 18 is laid under the salt drainage pipes 1. The impermeable geotextile 18 can prevent salinization.

[0042] In a further optimization scheme, the top surface of the water treatment chamber 3 is flush with the saline-alkali ground, and a manhole is provided on the top of the water treatment chamber 3, in which a removable manhole cover 19 is installed. Through the provided manhole and manhole cover 19, workers can enter the water treatment chamber 3 to perform equipment maintenance and other operations.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A saline-alkali soil environment and ecological restoration system, comprising a salt drainage pipe (1) buried in saline-alkali soil, characterized in that: Also includes: A salt drainage ditch (2), wherein the salt drainage ditch (2) is buried in saline-alkali soil, and the top of the side wall thereof is connected to the end of the salt drainage pipe (1); A water treatment chamber (3), the water treatment chamber (3) being arranged on one side of the salt drainage ditch (2), a lifting and conveying assembly (4) being arranged in the water treatment chamber (3), one end of the lifting and conveying assembly (4) extending into the salt drainage ditch (2), and the other end being connected to a water collecting tank (5); a treatment box (6), the top of which is in communication with the bottom of the water collecting tank (5), and activated carbon (7) is provided in the treatment box (6); Treatment box 2 (8), the top of treatment box 2 (8) is connected to the bottom of treatment box 1 (6), a flat ceramic membrane filter assembly (9) is provided in treatment box 2 (8), the outlet pipe (901) of the flat ceramic membrane filter assembly (9) is connected to lifting and conveying assembly 2 (10), and the end of the lifting and conveying assembly 2 (10) extends above the surface of the saline-alkali soil.

2. The saline-alkali soil environment and ecological restoration system according to claim 1, characterized in that: The bottom of the second processing box (8) is connected to a discharge pipe (14), a valve (15) is provided on the discharge pipe (14), and a collection pit (16) is correspondingly provided at the end of the discharge pipe (14).

3. The saline-alkali soil environment and ecological restoration system according to claim 2, characterized in that: A lifting and conveying assembly three (17) is provided in the water treatment chamber (3), one end of the lifting and conveying assembly three (17) extends into the collection pit (16), and the other end extends above the surface of the saline-alkali soil.

4. The saline-alkali soil environment and ecological restoration system according to claim 1, characterized in that: The salt drainage ditch (2) comprises a ditch body (201) buried in saline-alkali soil, one end of the lifting and conveying component (4) extends into the ditch body (201); a plurality of ditch cover plates (202) arranged side by side are provided on the top of the ditch body (201).

5. The saline-alkali soil environment and ecological restoration system according to claim 4, characterized in that: The trench cover (202) is provided with a through hole (2021), and the trench cover (202) is covered with a permeable geotextile (203).

6. The saline-alkali soil environment and ecological restoration system according to claim 1, characterized in that: A water-impermeable geotextile (18) is laid below the salt discharge pipe (1).

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