Wastewater desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa

Abstract

The present invention discloses a sewage desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa, which relates to the technical field of sewage treatment and includes a solution barrel, and an addition component is provided on the rear surface of the solution barrel. When the present invention is used, the pretreated sewage enters the reinforcement pipe through the sewage pipe, passes through the delivery pipe, the second flow meter, the connecting pipe, the third solenoid valve and the water spray pipe in sequence, and finally two nozzles spray out the sewage. The liquid pump is started, and the scale inhibitor solution is pumped into the liquid outlet pipe and the fixed pipe through the liquid pumping pipe, and passes through the diversion pipe, the first flow meter, the connecting pipe and the first solenoid valve in sequence. The scale inhibitor solution is transported to the inside of the arc cover by the liquid inlet pipe, flows out through the side circular hole, and is fully and evenly mixed with the sewage. The scale inhibitor forms a stable complex with calcium and magnesium ions to prevent calcium and magnesium ions from binding to the membrane surface, thereby reducing membrane pollution and scaling.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to sewage desalination treatment equipment in the process of Suaeda salsa repairing saline-alkali land. Background Art

[0002] Saline-alkali land refers to land where the soil contains excessive amounts of soluble salts and alkaline substances, leading to deterioration of soil properties and affecting plant growth. Suaeda salsa is a salt- and alkali-tolerant plant. Planting it can improve the soil structure and physical and chemical properties of saline-alkali land. As it grows, Suaeda absorbs salt from the soil, reducing its salinity. Its roots stabilize the soil, increasing its aeration and water permeability, improving soil fertility and thereby gradually improving saline-alkali land.

[0003] In existing technologies, wastewater desalination involves removing or reducing the salt content of wastewater generated during saline-alkali land restoration using a series of technologies and methods. This allows the treated water to meet reuse or discharge requirements, reducing environmental pollution and improving water resource utilization efficiency. A common wastewater desalination method is electrodialysis, which uses an electrodialyzer to desalinate wastewater.

[0004] The wastewater generated during the restoration of saline-alkali land with Suaeda salsa usually contains calcium and magnesium ions. During the wastewater desalination process, it is first filtered and pre-treated, and then enters the electrodialysis equipment for desalination treatment. During this process, the calcium and magnesium ions carried by the wastewater will enter the electrodialysis equipment together. The calcium and magnesium ions will form scale on the membrane surface, hindering the transmission channels of anions and cations in the membrane, reducing the desalination efficiency of the wastewater. Scaling will also accelerate the aging and damage of the membrane, shortening the service life of the membrane.

[0005] Therefore, we proposed a wastewater desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa, so as to solve the problems raised in the above background technology. Summary of the Invention

[0006] The purpose of the present invention is to provide a sewage desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa, so as to solve the problem proposed in the above background technology that during the sewage desalination treatment process of repairing saline-alkali land with Suaeda salsa, calcium and magnesium ions carried by sewage easily form scale on the membrane surface, hinder the transmission channel of anions and cations in the membrane, reduce the desalination efficiency of sewage, accelerate the aging and damage of the membrane, and shorten the service life of the membrane.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a wastewater desalination treatment device for the process of repairing saline-alkali land with Suaeda salsa, comprising a solution barrel, an addition component provided on the rear surface of the solution barrel, an electrodialysis device provided on the outer surface of the addition component, an injection component provided on the rear surface of the addition component, and a mixing component provided inside the addition component;

[0008] The adding component includes three partition boxes and a liquid pump. The tops of the three partition boxes are fixedly connected to a liquid inlet pipe, and the top surfaces of the three partition boxes are fixedly installed with an arc cover. The partition boxes are used to mix pretreated sewage and scale inhibitor solution. The arc cover is responsible for evenly sprinkling the scale inhibitor solution into the partition boxes, and the liquid inlet pipe is used to inject the scale inhibitor solution into the arc cover.

[0009] Preferably, the added component also includes three first solenoid valves, the input ends of the three first solenoid valves are connected to connecting pipes through flanges, the top ends of the three connecting pipes are connected to first flow meters through flanges, and the input ends of the three first flow meters are connected to shunt pipes through flanges.

[0010] Preferably, the top ends of the three diversion pipes are fixedly connected to a fixed pipe, the input end of the liquid pump is connected to a liquid extraction pipe through a flange, the output end of the liquid pump is connected to a liquid outlet pipe through a flange, one end of the liquid outlet pipe is fixedly connected to the outer surface of the fixed pipe, the top ends of the three liquid inlet pipes are respectively connected to the output ends of the three first solenoid valves through flanges, and one end of the liquid extraction pipe is fixedly passed through the interior of the solution barrel.

[0011] Preferably, the bottoms of the three partition boxes are fixedly connected with drainage pipes, the bottom ends of the three drainage pipes are connected with second solenoid valves through flanges, and the bottom ends of the three second solenoid valves are connected with pipeline mixers through flanges.

[0012] Preferably, the bottom ends of the three pipeline mixers are fixedly connected with a water injection pipe, one end of the water injection pipe is connected to the input end of the electrodialysis device via a flange, and liquid level sensors are provided inside the three partition boxes.

[0013] Preferably, the injection assembly includes three water spray pipes, one end of the three water spray pipes is fixedly connected to two nozzles, the other end of the three water spray pipes is connected to a third solenoid valve through a flange, the input ends of the three third solenoid valves are connected to a connecting pipe through a flange, and one end of the three connecting pipes is connected to a second flow meter through a flange.

[0014] Preferably, the injection assembly also includes a sewage pipe, one end of the sewage pipe is fixedly connected to a reinforcement pipe, the outer surface of the reinforcement pipe is fixedly connected to three delivery pipes, one end of the three delivery pipes is respectively connected to the input end of the three second flow meters through flanges, and one end of the three water spray pipes is respectively fixed to the interior of the three partition boxes.

[0015] Preferably, the mixing assembly includes three rotating rods, the outer surfaces of the three rotating rods are fixedly mounted with spiral conical pipes, the outer surfaces of the three spiral conical pipes are provided with multiple water flow holes, the outer surfaces of the top ends of the three rotating rods are fixedly mounted with liquid receiving covers, and turbine blades are arranged inside the three liquid receiving covers.

[0016] Preferably, the bottoms of the three liquid receiving covers are each provided with a water inlet hole, the top ends of the three spiral conical pipes are respectively fixedly mounted at the water inlet holes at the bottoms of the three liquid receiving covers, the insides of the three turbine blades are respectively fixedly mounted on the outer surfaces of the three rotating rods, the top ends of the three rotating rods are respectively movably embedded in the bottoms of the three arc-shaped covers, and the bottom ends of the three rotating rods are respectively movably embedded in the bottom surfaces of the insides of the three partition boxes.

[0017] A wastewater desalination treatment system for the process of repairing saline-alkali land with Suaeda salsa, comprising: a current and voltage detection module, a cleaning module, an electrodialysis module and an intelligent control module;

[0018] The electrodialysis module includes an ion exchange membrane unit, an electrode unit, a separator unit, a water flow distribution unit, a water quality detection unit and a circulation treatment unit;

[0019] The current and voltage detection module mainly monitors the current and voltage during the electrodialysis process. The cleaning module is responsible for regularly cleaning the ion exchange membrane unit in the electrodialysis module. The ion exchange membrane unit mainly desalinates and separates sewage. The electrode unit provides a DC electric field to drive the directional migration of ions and trigger electrode reactions. The partition unit separates the ion exchange membrane to form a fresh water chamber and a concentrated water chamber. The water flow distribution unit evenly distributes the concentrated water and fresh water separated by the ion exchange membrane unit to each fresh water chamber and concentrated water chamber. The water quality detection unit is responsible for detecting the water quality indicators of fresh water and concentrated water. The circulation treatment unit returns fresh water with poor desalination effect to the ion exchange membrane unit for further treatment. The intelligent control module automatically monitors and controls the operation of the entire sewage desalination system and adjusts the operating parameters according to the monitoring data.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the present invention is used, pretreated sewage enters the reinforced pipe through the sewage pipe, passes through the delivery pipe, the second flowmeter, the connecting pipe, the third solenoid valve, and the water spray pipe in sequence, and finally is sprayed out by two nozzles. The liquid pump is started, and the scale inhibitor solution is pumped into the liquid outlet pipe and the fixed pipe through the liquid pump pipe. The solution then passes through the diversion pipe, the first flowmeter, the connecting pipe, and the first solenoid valve in sequence. The scale inhibitor solution is then transported into the interior of the arc hood by the liquid inlet pipe and flows out through the side circular hole. It is fully and evenly mixed with the sewage. The scale inhibitor forms a stable complex with the calcium and magnesium ions, preventing the calcium and magnesium ions from binding to the membrane surface, thereby reducing membrane contamination and scaling. It also forms a protective film on the membrane surface, improving membrane efficiency.

[0022] 2. When the present invention is used, the second flow meter detects the sewage flow, the first flow meter detects the flow of the scale inhibitor solution, and transmits the detected data to the control system. When the flow data is consistent with the set data, the corresponding first solenoid valve, liquid pump and third solenoid valve will be controlled to close in time to achieve quantitative delivery, avoid excessive or insufficient delivery of sewage or scale inhibitor, which affects the reprocessing effect, start the second solenoid valve, and transport the mixed solution through the discharge pipe to the pipeline mixer for secondary mixing, and then enter the electrodialysis equipment through the water injection pipe for desalination treatment.

[0023] 3. When the present invention is used, the impact force of the sewage sprayed out by the nozzle will cause the turbine blades to rotate, driving the rotating rod, the liquid receiving cover and the spiral conical pipe to rotate together. Part of the sewage falls into the liquid receiving cover, enters the spiral conical pipe through the water inlet, flows out through multiple water holes at different positions and angles, and mixes with the injected scale inhibitor solution, which is conducive to promoting the mixing and reaction of the sewage and the scale inhibitor solution. At the same time, the rotating spiral conical pipe can promote the sewage to circulate in the separation box, so that the sewage and the scale inhibitor are fully contacted and mixed. No electric drive is required for stirring, saving electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a first-angle stereoscopic view of the sewage desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0025] Figure 2 This is a second-angle stereoscopic view of the sewage desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0026] Figure 3 This is a perspective view of the structure of the injection assembly in the sewage desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the structure of the added components in the sewage desalination treatment equipment during the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0028] Figure 5This is a schematic cross-sectional view of the structure of a partition box in a sewage desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0029] Figure 6 This is a perspective view of the structure of a water spray pipe in a sewage desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0030] Figure 7 This is a schematic cross-sectional view of the structure of a mixing component in a sewage desalination treatment device in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0031] Figure 8 This is a schematic cross-sectional view of the structure of the arc cover in the sewage desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa according to the present invention;

[0032] Figure 9 This is a system diagram of the sewage desalination treatment equipment in the process of repairing saline-alkali land with Suaeda salsa according to the present invention.

[0033] In the picture:

[0034] 1. Solution barrel; 2. Adding assembly; 201. Separation box; 202. Liquid inlet pipe; 203. First solenoid valve; 204. Connecting pipe; 205. First flowmeter; 206. Diverter pipe; 207. Fixed pipe; 208. Liquid outlet pipe; 209. Liquid pump; 210. Liquid extraction pipe; 211. Curved cover; 212. Liquid discharge pipe; 213. Second solenoid valve; 214. Pipe mixer; 215. Water injection pipe; 3. Electrodialysis equipment; 4. Injection assembly; 401. Sewage pipe; 402. Reinforcement pipe; 403. Delivery pipe; 404. Second flowmeter; 4 05. Connecting pipe; 406. Third solenoid valve; 407. Water spray pipe; 408. Nozzle; 5. Mixing assembly; 501. Rotating rod; 502. Spiral conical pipe; 503. Water flow hole; 504. Liquid receiving cover; 505. Turbine blade; 506. Water inlet hole; 6. Liquid level sensor; 7. Current and voltage detection module; 8. Cleaning module; 9. Electrodialysis module; 91. Ion exchange membrane unit; 92. Electrode unit; 93. Partition unit; 94. Water flow distribution unit; 95. Water quality detection unit; 96. Circulation treatment unit; 10. Intelligent control module. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1-9As shown, the present invention provides a technical solution: a sewage desalination treatment device in the process of repairing saline-alkali land with alkali sedge, comprising a solution barrel 1, an adding component 2 is arranged on the rear surface of the solution barrel 1, an electrodialysis device 3 is arranged on the outer surface of the adding component 2, an injection component 4 is arranged on the rear surface of the adding component 2, and a mixing component 5 is arranged inside the adding component 2; the adding component 2 comprises three partition boxes 201 and a liquid pump 209, the tops of the three partition boxes 201 are fixedly connected to a liquid inlet pipe 202, the top surfaces of the interiors of the three partition boxes 201 are fixedly installed with an arc cover 211, the partition boxes 201 are used to mix the pretreated sewage and the scale inhibitor solution, and the arc cover 211 is responsible for evenly sprinkling the scale inhibitor solution into the partition box 201, and the liquid pump 209 is provided. The liquid pipe 202 is used to inject the scale inhibitor solution into the arc cover 211. The adding component 2 also includes three first solenoid valves 203. The input ends of the three first solenoid valves 203 are connected to the connecting pipe 204 through a flange. The tops of the three connecting pipes 204 are connected to the first flow meter 205 through a flange. The input ends of the three first flow meters 205 are connected to the diversion pipe 206 through a flange. The tops of the three diversion pipes 206 are fixedly connected to the fixed pipe 207. The input end of the liquid pump 209 is connected to the liquid extraction pipe 210 through a flange. The output end of the liquid pump 209 is connected to the liquid outlet pipe 208 through a flange. One end of the liquid outlet pipe 208 is fixedly connected to the outer surface of the fixed pipe 207. The three liquid inlet pipes 209 are connected to the liquid pump 210 through a flange. The top of 02 is connected to the output end of the three first solenoid valves 203 through flanges respectively, one end of the liquid extraction pipe 210 is fixedly passed through the interior of the solution barrel 1, the bottom of the three partition boxes 201 are fixedly connected with a drainage pipe 212, the bottom ends of the three drainage pipes 212 are connected to the second solenoid valve 213 through flanges, the bottom ends of the three second solenoid valves 213 are connected to the pipeline mixer 214 through flanges, the bottom ends of the three pipeline mixers 214 are fixedly connected with a water injection pipe 215, one end of the water injection pipe 215 is connected to the input end of the electrodialysis equipment 3 through a flange, and the interior of the three partition boxes 201 are provided with a liquid level sensor 6, the injection assembly 4 includes three water spray pipes 407, the three water spray pipes 40 One end of each of the three water spray pipes 407 is fixedly connected to two nozzles 408, and the other ends of each of the three water spray pipes 407 are connected to a third solenoid valve 406 through a flange. The input ends of the three third solenoid valves 406 are connected to a connecting pipe 405 through a flange, and one end of each of the three connecting pipes 405 is connected to a second flow meter 404 through a flange. The injection assembly 4 also includes a sewage pipe 401, one end of the sewage pipe 401 is fixedly connected to a reinforcement pipe 402, and the outer surface of the reinforcement pipe 402 is fixedly connected to three delivery pipes 403, one end of the three delivery pipes 403 is respectively connected to the input ends of the three second flow meters 404 through flanges, and one end of the three water spray pipes 407 is fixedly passed through the interior of the three partition boxes 201.

[0037] In this embodiment, when in use, an injection pipe and a waste liquid pipe are provided on the top of the solution barrel 1, a threaded cover is provided on the top of the injection pipe, and a valve is provided on the outer surface of the waste liquid pipe. Figure 1As shown, electrodialysis equipment 3 is equipped with a freshwater outlet pipe and a concentrated water outlet pipe. Electrodialysis equipment 3 is a mature existing technology and will not be described in detail here. One end of sewage pipe 401 is connected to an external pretreatment device. After the sewage passes through the pretreatment device and is filtered through quartz sand, activated carbon, and ultrafiltration equipment, it enters the reinforced pipe 402 through sewage pipe 401. The third solenoid valves 406 in the middle and right sides are both closed. The sewage in the reinforced pipe 402 enters the corresponding second flowmeter 404, connecting pipe 405, third solenoid valve 406, and spray pipe 407 through the left delivery pipe 403. The sewage is then sprayed into the mixing assembly 5 by two nozzles 408. Some of the sewage falls directly into the left partition box 201, while some of the sewage is discharged into the partition box 201 through the mixing assembly 5. During the sewage transportation process, the second flowmeter 404 detects the sewage flow and transmits the detected flow data to the external control system. While injecting sewage, the liquid pump 209 is started, and the scale inhibitor solution inside the solution barrel 1 is pumped into the liquid outlet pipe 208 and the fixed pipe 207 through the liquid pumping pipe 210. The first solenoid valves 203 in the middle and on the right are both in a closed state, so that the scale inhibitor solution in the fixed pipe 207 flows to the first flowmeter 205, the connecting pipe 204 and the first solenoid valve 203 in sequence through the diversion pipe 206 on the left. The scale inhibitor solution is transported to the interior of the partition box 201 by the liquid inlet pipe 202 and falls into the interior of the arc cover 211 to mix with the sewage. Six circular holes are equidistantly opened on the outer surface of the arc cover 211, and the water spray pipe 407 is located between two adjacent circular holes. The scale inhibitor solution then flows outward through the circular holes on the side of the arc-shaped cover 211. Multiple streams of scale inhibitor solution fall downward in an arc shape into the interior of the partition box 201. This helps to more evenly distribute the scale inhibitor within the partition box 201, avoiding the situation where the concentration of scale inhibitor is too high or too low in some areas when a concentrated stream of scale inhibitor falls. This helps to fully and evenly mix the scale inhibitor with the sewage, thereby improving the scale inhibition effect. Furthermore, under the action of the mixing component 5, the scale inhibitor solution and the sewage are fully mixed. The scale inhibitor can form a stable complex with the calcium and magnesium ions in the water, preventing them from forming insoluble salt precipitation on the membrane surface. This prevents these precipitates from adhering to the membrane surface, reducing membrane contamination and scaling, extending the membrane service life, and maintaining the stable operation of the electrodialysis device 3. Simultaneously, the first flowmeter 205 detects the flow rate of the antiscalant solution and transmits the detected flow rate to the external control system. When the antiscalant flow rate data received from the first flowmeter 205 matches the set data, the control system controls the first solenoid valve 203 and liquid pump 209 on the left to close, stopping the flow of the antiscalant solution. When the sewage flow rate data received from the second flowmeter 404 matches the set data, the control system controls the third solenoid valve 406 on the left to close and activates the third solenoid valve 406, the first solenoid valve 203, and the liquid pump 209 in the middle, transferring the sewage and antiscalant solution to the middle separation tank 201 for mixing.After the middle compartment 201 is injected with an appropriate amount of scale inhibitor solution and sewage, the process proceeds similarly to the above. The third solenoid valve 406, the first solenoid valve 203, and the liquid pump 209 on the right side are activated, transferring the sewage and scale inhibitor solution to the right compartment 201 for mixing. During this process, the sewage and scale inhibitor solution in the left compartment 201 are fully mixed and reacted. The second solenoid valve 213 on the left side is activated, transferring the mixed solution in the left compartment 201 via the discharge pipe 212 to the pipeline mixer 214 for secondary mixing. The mixed solution then enters the membrane stack within the electrodialysis device 3 via the injection pipe 215. Under the action of the DC electric field, the anions and cations in the sewage migrate toward the corresponding electrodes. The selective permeation of the cation and anion membranes separates the ions between the different compartments, forming concentrated water and fresh water, which are then discharged through the fresh water outlet pipe and the concentrated water outlet pipe, respectively, achieving the desired sewage desalination effect. While draining, the left liquid level sensor 6 is activated to detect the liquid level in the left partition box 201 and transmit the detected liquid level information to the control system. When the liquid level in the left partition box 201 matches the set liquid level data, the left second solenoid valve 213 is controlled to close. Under the action of the addition component 2, a scale inhibitor solution can be added to the sewage to form a stable complex or chelate with calcium and magnesium ions, so that these ions remain dissolved in the water. The scale inhibitor molecules have a special structure, one end of which can adsorb on the active site on the membrane surface, while the other end extends into the water. Due to the steric hindrance and charge repulsion of the scale inhibitor molecules, calcium and magnesium ions are prevented from approaching the active sites on the membrane surface, thereby forming a protective film on the membrane surface, preventing calcium and magnesium ions from binding to the membrane surface, thereby reducing membrane fouling and scaling. This protective film has a relatively loose structure, and its pore size and charge distribution do not hinder the normal passage of ions through the membrane. Moreover, the role of scale inhibitors is mainly to target calcium, magnesium and other ions that are prone to scaling. The protective membrane will not produce substantial obstruction for the anions and cations that need to be removed during the electrodialysis process. On the contrary, since it reduces scaling and pollution on the membrane surface, it is conducive to smoother passage of these ions through the membrane. This solves the problem that during the desalination process of sewage in the process of repairing saline-alkali land with alkali sedge, the calcium and magnesium ions carried by the sewage are prone to form scaling on the membrane surface, hindering the transmission channels of anions and cations in the membrane, reducing the desalination efficiency of the sewage, and accelerating the aging and damage of the membrane, shortening the service life of the membrane.

[0038] Example 2: Figure 3-Figure 7As shown, the rear surface of the solution barrel 1 is provided with an adding component 2, the outer surface of the adding component 2 is provided with an electrodialysis device 3, the rear surface of the adding component 2 is provided with an injection component 4, the interior of the adding component 2 is provided with a mixing component 5, and the mixing component 5 includes three rotating rods 501, the outer surfaces of the three rotating rods 501 are fixedly installed with spiral conical pipes 502, the outer surfaces of the three spiral conical pipes 502 are provided with multiple water holes 503, the outer surfaces of the tops of the three rotating rods 501 are fixedly installed with liquid receiving covers 504, and the three liquid receiving covers are fixedly installed with liquid receiving covers 504. Turbine blades 505 are provided inside the cover 504, and water inlet holes 506 are opened at the bottom of the three liquid receiving covers 504. The top ends of the three spiral conical pipes 502 are respectively fixedly installed at the water inlet holes 506 at the bottom of the three liquid receiving covers 504. The insides of the three turbine blades 505 are respectively fixedly installed on the outer surfaces of the three rotating rods 501, and the top ends of the three rotating rods 501 are respectively movably embedded in the bottoms of the three arc-shaped covers 211, and the bottom ends of the three rotating rods 501 are respectively movably embedded in the bottom surfaces of the insides of the three partition boxes 201.

[0039] In this embodiment, when in use, the nozzle 408 is tilted and directed toward the curved blades of the turbine blades 505. When the nozzle 408 sprays sewage, the sewage rushes toward the curved blades of the turbine blades 505. Under the impact of the water flow, the turbine blades 505 rotate, driving the rotating rod 501, the liquid receiving cover 504 and the spiral conical pipe 502 to rotate together. Part of the sprayed sewage falls directly into the separation box 201, and part falls into the liquid receiving cover 504, and then enters the spiral conical pipe 502 through the water inlet hole 506 and flows along the rotating spiral conical pipe 502. During this process, the sewage will flow out at different positions and angles through multiple water flow holes 503 and mix with the injected scale inhibitor solution. A certain amount of turbulence will be generated when the sewage flows out, which is conducive to promoting the mixing and reaction of the sewage and the scale inhibitor solution, improving the scale inhibition effect, and better protecting the electrodialysis membrane from the influence of calcium and magnesium ion scaling. At the same time, the rotating spiral conical pipe 502 can push the sewage to circulate in the separation box 201, so that the sewage and the scale inhibitor are fully contacted and mixed. There is no need to use a separate driving source to achieve the stirring function, saving electricity consumption.

[0040] Example 3: Figure 9As shown, a wastewater desalination treatment system in the process of repairing saline-alkali land with Suaeda salsa includes: a current and voltage detection module 7, a cleaning module 8, an electrodialysis module 9 and an intelligent control module 10; the electrodialysis module 9 includes an ion exchange membrane unit 91, an electrode unit 92, a partition unit 93, a water flow distribution unit 94, a water quality detection unit 95 and a circulation treatment unit 96; the current and voltage detection module 7 mainly monitors the current and voltage during the electrodialysis process, the cleaning module 8 is responsible for regularly cleaning the ion exchange membrane unit 91 in the electrodialysis module 9, and the ion exchange membrane unit 91 mainly desalinates the wastewater. The electrode unit 92 provides a DC electric field to drive the directional migration of ions and trigger an electrode reaction. The partition unit 93 separates the ion exchange membrane to form a fresh water chamber and a concentrated water chamber. The water flow distribution unit 94 evenly distributes the concentrated water and fresh water separated by the ion exchange membrane unit 91 to each fresh water chamber and concentrated water chamber. The water quality detection unit 95 is responsible for detecting the water quality indicators of fresh water and concentrated water. The circulation treatment unit 96 returns the fresh water with poor desalination effect to the ion exchange membrane unit 91 for further treatment. The intelligent control module 10 automatically monitors and controls the operation of the entire sewage desalination system and adjusts the operating parameters according to the monitoring data.

[0041] In this embodiment, when in use, the electrode unit 92 provides a DC electric field to drive the directional migration of ions and trigger an electrode reaction. The cation exchange membrane in the ion exchange membrane unit 91 allows cations to pass through, and the anion exchange membrane allows anions to pass through. Under the action of the electric field, the cations and anions in the solution migrate through the corresponding membranes respectively. The partition unit 93 separates the ion exchange membranes to form a fresh water chamber and a concentrated water chamber to ensure that the solution flows evenly between the membranes. The water flow distribution unit 94 evenly distributes the sewage to each fresh water chamber and concentrated water chamber. The water quality detection unit 95 detects the water quality indicators of fresh water and concentrated water, evaluates the desalination effect and understands whether the electrodialysis process is normal, by detecting the conductivity, salt concentration, pH value, turbidity, etc. of the fresh water, and the salt concentration of the concentrated water. , ion composition and other indicators, and use corresponding sensors and detection instruments to collect and analyze data. The circulation processing unit 96 sends the fresh water with poor desalination effect back to the electrodialysis module 9 for re-processing to improve the desalination effect. The intelligent control module 10 automatically monitors and controls the operation of the entire sewage desalination system, adjusts the operating parameters according to the monitoring data, and realizes the optimized operation and automatic management of the system. The cleaning module 8 regularly cleans the ion exchange membrane in the electrodialysis module 9 to remove dirt and scaling substances on the membrane surface, maintain the performance and desalination effect of the membrane, and extend the service life of the membrane. The current and voltage detection module 7 monitors the current and voltage in the electrodialysis process in real time to ensure that the electrodialysis module 9 operates under appropriate electric field conditions.

[0042] The overall mechanism achieves the following effects and operates as follows: pretreated sewage enters the reinforced pipe 402 through the sewage pipe 401, then enters the second flowmeter 404, the connecting pipe 405, the third solenoid valve 406, and the water spray pipe 407 via the left-hand delivery pipe 403. Two nozzles 408 spray the sewage onto the curved blades of the turbine blades 505. The impact of the water flow causes the turbine blades 505 to rotate, driving the rotating rod 501, the liquid receiving cover 504, and the spiral conical pipe 502 to rotate. The sewage partially falls directly into the partition box 201 and partially into the liquid receiving cover 504. The sewage then enters the spiral conical pipe 502 through the water inlet 506 and flows out through multiple water holes 503 at different locations and angles. The second flowmeter 404 measures the sewage flow and transmits the measured flow data to an external control system. Liquid pump 209 is activated, pumping the antiscalant solution through the liquid extraction pipe 210 into the liquid outlet pipe 208 and fixed pipe 207. The solution then flows through the left-hand diversion pipe 206 to the first flowmeter 205, connecting pipe 204, and first solenoid valve 203. The inlet pipe 202 delivers the antiscalant solution into the curved cover 211, where it flows out through the circular hole on the side and mixes with the sewage. The first flowmeter 205 measures the flow of the antiscalant solution and transmits the measured flow rate to the external control system. When the antiscalant flow rate data received from the first flowmeter 205 matches the set data, the control system controls the first solenoid valve 203 and liquid pump 209 to close, stopping the antiscalant solution delivery. When the control system receives sewage flow data from the second flowmeter 404 that matches the set data, it controls the third solenoid valve 406 on the left to close and activates the third solenoid valve 406 in the middle, the first solenoid valve 203 in the middle, and the liquid pump 209 to transport the sewage and antiscalant solution to the middle compartment 201 for mixing. Once the middle compartment 201 has been injected with an appropriate amount of antiscalant solution and sewage, the process continues as described above, with the third solenoid valve 406 on the right, the first solenoid valve 203 on the right, and the liquid pump 209 to activate, transporting the sewage and antiscalant solution to the right compartment 201 for mixing. During this process, the sewage and scale inhibitor solution in the left partition box 201 are fully mixed and reacted, and the second solenoid valve 213 on the left is started. The mixed solution in the left partition box 201 is transported to the pipeline mixer 214 through the discharge pipe 212 for secondary mixing, and enters the membrane stack inside the electrodialysis equipment 3 through the water injection pipe 215. Under the action of the DC electric field, the anions and cations in the sewage migrate to the corresponding electrodes respectively. Through the selective permeation of the cation membrane and the anion membrane, the ions are separated between different compartments to form concentrated water and fresh water, which are discharged respectively through the fresh water outlet pipe and the concentrated water outlet pipe.The left liquid level sensor 6 is started to detect the liquid level in the left partition box 201 and transmit the detected liquid level information to the control system. When the liquid level in the left partition box 201 matches the set liquid level data, the left second solenoid valve 213 is controlled to close.

[0043] Among them, the first solenoid valve 203, the first flow meter 205, the liquid pump 209, the second solenoid valve 213, the pipeline mixer 214, the electrodialysis equipment 3, the second flow meter 404, the third solenoid valve 406 and the liquid level sensor 6 are all existing technologies, and their components and usage principles are all public technologies, so no further explanation will be given here.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage desalination treatment device for the process of repairing saline-alkali land with Suaeda salsa, comprising a solution barrel (1), characterized in that: An adding component (2) is provided on the rear surface of the solution barrel (1), an electrodialysis device (3) is provided on the outer surface of the adding component (2), an injection component (4) is provided on the rear surface of the adding component (2), and a mixing component (5) is provided inside the adding component (2); The adding assembly (2) comprises three partition boxes (201) and a liquid pump (209); the tops of the three partition boxes (201) are fixedly connected to a liquid inlet pipe (202); the top surfaces of the three partition boxes (201) are fixedly installed with an arc cover (211); the partition boxes (201) are used to mix the pretreated sewage and the antiscalant solution; the arc cover (211) is responsible for evenly spreading the antiscalant solution into the partition boxes (201); and the liquid inlet pipe (202) is used to inject the antiscalant solution into the arc cover (211); The mixing assembly (5) comprises three rotating rods (501), the outer surfaces of the three rotating rods (501) are fixedly mounted with spiral conical pipes (502), the outer surfaces of the three spiral conical pipes (502) are provided with a plurality of water flow holes (503), the outer surfaces of the top ends of the three rotating rods (501) are fixedly mounted with liquid receiving covers (504), and turbine blades (505) are provided inside the three liquid receiving covers (504); The bottoms of the three liquid receiving covers (504) are each provided with a water inlet hole (506); the top ends of the three spiral conical pipes (502) are respectively fixedly mounted on the water inlet holes (506) at the bottoms of the three liquid receiving covers (504); the interiors of the three turbine blades (505) are respectively fixedly mounted on the outer surfaces of the three rotating rods (501); the top ends of the three rotating rods (501) are respectively movably embedded in the bottoms of the three arc-shaped covers (211); and the bottom ends of the three rotating rods (501) are respectively movably embedded in the bottom surfaces of the interiors of the three partition boxes (201).

2. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 1, characterized in that: The adding component (2) further comprises three first solenoid valves (203), the input ends of the three first solenoid valves (203) are connected to connecting pipes (204) via flanges, the top ends of the three connecting pipes (204) are connected to first flow meters (205) via flanges, and the input ends of the three first flow meters (205) are connected to shunt pipes (206) via flanges.

3. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 2, characterized in that: The top ends of the three diversion pipes (206) are fixedly connected to a fixed pipe (207), the input end of the liquid pump (209) is connected to a liquid extraction pipe (210) via a flange, the output end of the liquid pump (209) is connected to a liquid outlet pipe (208) via a flange, one end of the liquid outlet pipe (208) is fixedly connected to the outer surface of the fixed pipe (207), the top ends of the three liquid inlet pipes (202) are respectively connected to the output ends of the three first solenoid valves (203) via flanges, and one end of the liquid extraction pipe (210) is fixedly passed through the interior of the solution barrel (1).

4. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 3 is characterized in that: The bottoms of the three partition boxes (201) are all fixedly connected with drainage pipes (212), the bottom ends of the three drainage pipes (212) are all connected with second solenoid valves (213) through flanges, and the bottom ends of the three second solenoid valves (213) are all connected with pipeline mixers (214) through flanges.

5. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 4 is characterized in that: The bottom ends of the three pipeline mixers (214) are fixedly connected to a water injection pipe (215), one end of the water injection pipe (215) is connected to the input end of the electrodialysis device (3) via a flange, and liquid level sensors (6) are provided inside the three partition boxes (201).

6. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 5, characterized in that: The injection assembly (4) comprises three water spray pipes (407), one end of each of the three water spray pipes (407) is fixedly connected to two spray heads (408), the other end of each of the three water spray pipes (407) is connected to a third solenoid valve (406) via a flange, the input end of each of the three third solenoid valves (406) is connected to a connecting pipe (405) via a flange, and one end of each of the three connecting pipes (405) is connected to a second flow meter (404) via a flange.

7. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 6, characterized in that: The injection assembly (4) further comprises a sewage pipe (401), one end of the sewage pipe (401) being fixedly connected to a reinforcement pipe (402), the outer surface of the reinforcement pipe (402) being fixedly connected to three delivery pipes (403), one end of the three delivery pipes (403) being respectively connected to the input ends of three second flow meters (404) via flanges, and one end of the three water spray pipes (407) being respectively fixedly passed through the interiors of the three partition boxes (201).

8. The sewage desalination treatment equipment in the process of repairing saline-alkali land in Suaeda salsa according to claim 7, characterized in that: Also includes: A wastewater desalination treatment system in the process of repairing saline-alkali land with Suaeda salsa, comprising: a current and voltage detection module (7), a cleaning module (8), an electrodialysis module (9) and an intelligent control module (10); The electrodialysis module (9) comprises an ion exchange membrane unit (91), an electrode unit (92), a separator unit (93), a water flow distribution unit (94), a water quality detection unit (95) and a circulation treatment unit (96); The current and voltage detection module (7) monitors the current and voltage during the electrodialysis process. The cleaning module (8) is responsible for regularly cleaning the ion exchange membrane unit (91) in the electrodialysis module (9). The ion exchange membrane unit (91) desalinates and separates the sewage. The electrode unit (92) provides a DC electric field to drive the ion directional migration and trigger an electrode reaction. The partition unit (93) separates the ion exchange membrane to form a fresh water chamber and a concentrated water chamber. The water flow distribution unit (94) evenly distributes the concentrated water and fresh water separated by the ion exchange membrane unit (91) to each fresh water chamber and concentrated water chamber. The water quality detection unit (95) is responsible for detecting the water quality indicators of the fresh water and concentrated water. The circulation treatment unit (96) returns the fresh water with poor desalination effect to the ion exchange membrane unit (91) for further treatment. The intelligent control module (10) automatically monitors and controls the operation of the entire sewage desalination system and adjusts the operating parameters according to the detection data.

Images