A functionally integrated sewage multi-stage reverse osmosis treatment process

Abstract

The invention discloses a functionally integrated sewage multi-stage reverse osmosis treatment process, comprising a first-stage reverse osmosis unit and a second-stage reverse osmosis unit for multi-stage reverse osmosis treatment of sewage after filtration and sedimentation treatment, wherein the reverse osmosis component comprises an outer tube, an outer wall of the outer tube is provided with an osmotic membrane component, an outer wall of the osmotic membrane component is provided with a membrane descaling module, the membrane descaling module comprises a shape memory net, a sealing frame is embedded in the outer surface of the shape memory net, and an elastic airbag diaphragm is installed on the inner wall of the sealing frame. The invention uses a micro air pump to fill gas into the sealing frame to expand the elastic airbag diaphragm, push the shape memory net to produce an outward expansion deformation, and cause impurities attached to the outer wall of the osmotic membrane component and the shape memory net to peel off, and a micro bubble generator generates micro bubbles to fully clean the impurities remaining on the outer wall of the osmotic membrane component and the shape memory net component, thereby achieving the purpose of automatically cleaning the osmotic membrane component, which is beneficial to improving the treatment effect of sewage.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a functionally integrated sewage multi-stage reverse osmosis treatment process. Background Art

[0002] With the increase of water consumption in life and industry, the discharge of wastewater is also gradually increasing. In order to avoid the pollution of the environment by the discharged wastewater, it is necessary to purify the wastewater before discharge so that the wastewater meets the discharge standard or the recycling standard. The purification of wastewater includes filtration treatment, reverse osmosis treatment, aeration treatment and other treatment methods. Therefore, a functionally integrated sewage multi-stage reverse osmosis treatment process is proposed to achieve filtration, catalysis and reverse osmosis treatment of sewage. However, the existing reverse osmosis treatment process is not convenient for fully cleaning the impurities on the outer wall of the osmotic membrane component, and it is easy to damage the osmotic membrane component during the cleaning process, thereby reducing the sewage treatment effect and the service life of the reverse osmosis component.

[0003] The defects of existing sewage treatment processes are:

[0004] Patent document CN117049739B mainly considers how to achieve multiple and graded reverse osmosis purification of sewage, but does not consider how to automatically clean the osmotic membrane;

[0005] Patent document CN106277510B mainly achieves sewage purification by setting up a multi-stage filter, but does not consider how to fully clean the osmotic membrane assembly;

[0006] Patent document CN103848529A mainly aims to improve the sewage treatment efficiency by pre-filtering and preheating the sewage, but does not consider how to precipitate the soluble impurities in the sewage and how to reduce the energy consumption in the sewage treatment process;

[0007] Patent document CN108128860B mainly considers the problem of how to automatically reduce the stirring speed according to the generation of flocs during the coagulation process, but does not consider the problem of how to automatically replenish catalyst particles to keep the catalyst particles in a sufficient state. Summary of the invention

[0008] The purpose of the present invention is to provide a functionally integrated sewage multi-stage reverse osmosis treatment process to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a functionally integrated sewage multi-stage reverse osmosis treatment process, comprising:

[0010] Step 1: The wastewater to be treated is passed into a catalytic treatment unit for catalytic treatment to produce precipitates;

[0011] Step 2: The catalytically treated sewage is passed through a delivery pump and a pipeline into a filtration treatment unit for sedimentation and filtration treatment;

[0012] Step 3: The sewage after filtration and sedimentation treatment is passed into the primary reverse osmosis unit through a booster pump and pipeline for a reverse osmosis treatment;

[0013] Step 4: The sewage after the primary reverse osmosis treatment is passed through a booster pump and a pipeline into a secondary reverse osmosis unit for secondary reverse osmosis treatment;

[0014] Step 5: The sewage after secondary reverse osmosis treatment is passed into the clean water tank through a delivery pump and a pipeline;

[0015] The steps 3 and 4 include regularly descaling the membranes of the primary reverse osmosis unit and the secondary reverse osmosis unit by using a membrane descaling module provided in the primary reverse osmosis unit and the secondary reverse osmosis unit;

[0016] The primary reverse osmosis unit comprises a mounting frame and a reverse osmosis component, wherein the reverse osmosis component is detachably mounted inside the mounting frame, wherein the reverse osmosis component comprises an outer tube, both ends of the outer tube are sleeved with end caps, a bracket is mounted on the inner wall of the outer tube, a water collecting pipe is arranged inside the outer tube, and the water collecting pipe, the bracket, the outer tube and the end cap are arranged coaxially, an outer wall of the water collecting pipe is sleeved with an osmotic membrane component, an outer wall of the osmotic membrane component is sleeved with a membrane descaling module, the membrane descaling module comprises a shape memory net, a sealing frame is embedded in the outer surface of the shape memory net, a side of the sealing frame close to the osmotic membrane component is open, an elastic air bag diaphragm is mounted on the inner wall of the opening side of the sealing frame, a vent is mounted on the top of the sealing frame, a micro air pump is arranged on the front of the mounting frame, and the micro air pump is connected to the vent through a pipeline, an electric heating pipe is mounted on the inner wall of the outer tube, and the electric heating pipe is located on the outside of the shape memory net, a temperature sensor is embedded in the outer wall of the sealing frame, and the temperature sensor is electrically connected to the electric heating pipe, a bubble generator is mounted on the inner wall of the outer tube, and the bubble generator is located on the left side of the bracket.

[0017] Preferably, a guide rod is installed on the inner wall of the outer tube, the guide rod passes through the outer wall of the shape memory net, and the guide rod is located on both sides of the sealing frame, and one end of the guide rod away from the outer tube is in contact with the outer wall of the permeable membrane assembly.

[0018] Preferably, a spiral flow channel is installed on the inner wall of the outer tube, and the spiral flow channel is located on the outside of the electric heating tube, a tangential air nozzle is installed on the bottom wall of the outer tube, an air purification unit is installed on the bottom of the outer tube, the air purification unit includes an air filter and an ultraviolet sterilizer, an air pump is arranged below the mounting frame, and the air outlet end of the air pump is connected to the air inlet end of the air purification unit through a pipe, and the air outlet end of the air purification unit is connected to the tangential air nozzle through a pipe.

[0019] Preferably, a water outlet pipe is connected to the outer wall of a group of end covers on the right side of the reverse osmosis component, and the left end of the water outlet pipe is connected to the water outlet end of the water collecting pipe, and the right end of the water outlet pipe is connected to the energy recovery unit, the energy recovery unit includes a heat exchanger, the outer wall of the water outlet pipe is connected to a branch pipe, and the right end of the branch pipe is connected to the heat source outlet end of the heat exchanger, the water outlet pipe and the outer wall of the branch pipe are both provided with solenoid valves, and the solenoid valve is electrically connected to the temperature sensor.

[0020] Preferably, a double-layer spiral pipe is installed on the inner wall of the catalytic treatment unit, and the double-layer spiral pipe includes an upper spiral pipe and a lower spiral pipe. The upper spiral pipe is loaded with heat transfer liquid, and an electric heating plate is installed on the inner wall of the upper spiral pipe. The electric heating plate is used to heat the heat transfer liquid. Both ends of the lower spiral pipe are connected to the cold source inlet and outlet of the heat exchanger through pipes respectively. A hollow rod is installed through the top of the catalytic treatment unit, and the hollow rod extends to the bottom wall of the catalytic treatment unit. A catalyst tube is installed on the outer wall of the hollow rod, and the catalyst tube is loaded with catalyst particles.

[0021] Preferably, the catalyst tube comprises a hollow mesh frame near the inner wall of the catalytic treatment unit and a hollow tube near the hollow rod, a limit block is fixedly installed on the inner wall of the hollow tube, and the limit block is located at one end of the hollow tube near the hollow mesh frame, a sliding block is slidably connected to the inner wall of the hollow tube, and the sliding block is located between the limit block and the hollow rod, a fixed rod is installed on the inner wall of the hollow mesh frame, the fixed rod is a T-shaped rod, a telescopic tube is sleeved on the outer wall of the fixed rod, and the telescopic tube and the fixed rod are parallel to the inner wall of the catalyst tube, a spring is installed on the inner wall of the telescopic tube, and one end of the spring is connected to the right end of the fixed rod, a distance measuring sensor is installed on the inner wall of the telescopic tube away from the hollow rod, and the sliding sensor is installed on the inner wall of the telescopic tube on the side away from the hollow rod. A feeding hopper is installed through the outer wall of the moving block on one side close to the hollow rod, a one-way feeding valve is arranged on the outer wall of the feeding hopper, and the one-way feeding valve is electrically connected to the distance measuring sensor, a through hole is opened on the outer wall of the hollow rod, and the through hole is used to connect the hollow rod and the catalyst tube, a hollow groove is arranged on the inner wall of the hollow rod, a telescopic rod 1 is installed inside the hollow groove, a sealing block is connected to the output end of the telescopic rod 1, and the sealing block is used to seal the through hole, a pressure sensor, a spring 2 and an arc-shaped sheet are embedded in the top wall of the hollow tube at one end close to the hollow rod, the spring 2 is located on both sides of the pressure sensor, the arc-shaped sheet is located below the spring 2 and the pressure sensor, and the pressure sensor is electrically connected to the telescopic rod 1.

[0022] Preferably, the top end of the second spring is fixedly connected to the inner wall of the hollow tube, the bottom end of the second spring is fixedly connected to the top of the arc-shaped piece, and the embedded connection between the arc-shaped piece and the hollow tube is a sliding connection.

[0023] Preferably, a rotating rod is installed through the outer wall of the catalytic treatment unit, blades are installed on the outer wall of the rotating rod, a bevel gear 1 is sleeved on the outer wall of the rotating rod, and bevel gear 1 is located on the left side of the blade, and a bevel gear 2 is sleeved on the outer wall of the hollow rod, and bevel gear 2 is meshed with bevel gear 1.

[0024] Preferably, a support frame is installed on the outer wall of the catalytic treatment unit, a driving motor is arranged on the top of the support frame, the output end of the driving motor is connected to the rotating shaft through a coupling, a groove is arranged at the right end of the rotating rod, and the rotating shaft is inserted into the groove, and a telescopic rod 2 is embedded in the outer wall of the rotating rod, and a clamping ring is connected to the output end of the telescopic rod 2, and the clamping ring is located between the inner wall of the groove and the rotating shaft.

[0025] Preferably, the filtration treatment unit includes a quartz sand filter, an activated carbon filter and a security filter in sequence, and adjacent filters are connected by a delivery pump and a pipeline.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention performs multi-stage reverse osmosis treatment on sewage by installing an osmotic membrane assembly, and regularly fills gas into a sealing frame through a micro air pump to expand the elastic airbag diaphragm, thereby pushing the shape memory net to deform outward, so that impurities attached to the outer wall of the osmotic membrane assembly and the shape memory net are peeled off, thereby achieving the purpose of automatically cleaning the osmotic membrane assembly, and creating gaps between the impurities and the outer wall of the osmotic membrane assembly and the shape memory net, and then generating micro bubbles through a micro bubble generator, and utilizing the energy generated by the bursting of the micro bubbles to fully clean the impurities remaining on the outer wall of the osmotic membrane assembly and the shape memory net assembly, thereby achieving the purpose of automatically cleaning the osmotic membrane assembly, which is beneficial to improving the reverse osmosis treatment effect on sewage.

[0028] 2. The present invention is equipped with a spiral flow channel, so that the sewage to be treated introduced into the outer tube can be spirally advanced, thereby driving the micro bubbles to be spirally advanced, which is beneficial to evenly distribute the micro bubbles on the outer wall of the shape memory net and the osmotic membrane assembly, and is convenient for comprehensive cleaning of the outer wall of the shape memory net and the osmotic membrane assembly. A tangential airflow is introduced through a tangential spray nozzle to assist the sewage in the outer tube to spirally flow along the outer wall of the spiral flow channel, thereby ensuring the uniform distribution of the micro bubbles, and a spiral force is generated through the spiral flow of the sewage to break up the flaked impurities, thereby avoiding the phenomenon that large impurities block the concentrated water pipes at the right ends of the primary reverse osmosis assembly and the secondary reverse osmosis assembly, which is beneficial to maintaining the normal progress of the multi-stage sewage purification process.

[0029] 3. The present invention recovers the heat energy of the sewage in the primary reverse osmosis unit and the secondary reverse osmosis unit by installing a heat exchanger, and transfers the heat energy to the catalytic treatment unit to heat the sewage, so that the sewage in the catalytic treatment unit reaches a suitable temperature for the catalyst particles to carry out catalytic reaction, thereby improving the catalytic treatment effect of the catalytic treatment unit on the sewage and improving the energy utilization rate. By arranging the upper spiral tube and the electric heating plate, the catalytic treatment unit is heated when the heat exchanger is not in use, ensuring the efficient operation of the catalytic treatment unit.

[0030] 4. The present invention is equipped with a spliced ​​catalyst tube for loading catalyst particles. When the catalyst particles are gradually consumed, a spring pulls the sliding block to slide downward, and then the one-way feed valve is opened to allow the catalyst particles on the adding bucket side to be transported to the hollow mesh frame through the one-way feed valve, thereby realizing automatic replenishment of the catalyst. Thereafter, the sealing block is driven to move upward by a telescopic rod to leak the through hole, so that the catalyst in the hollow rod can be replenished into the hollow tube, thereby ensuring that the catalyst tube is loaded with sufficient catalyst particles, which is beneficial to ensuring the normal operation of the catalytic treatment unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a primary reverse osmosis unit of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the outer tube of the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the shape memory network of the present invention;

[0035] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0036] Figure 6 It is a schematic diagram of the structure of the permeable membrane assembly of the present invention;

[0037] Figure 7 It is a schematic diagram of the spiral flow channel structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the catalytic treatment unit of the present invention;

[0039] Fig. 9 It is a schematic diagram of the catalyst tube structure of the present invention;

[0040] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at B;

[0041] Fig.11 For the present invention Figure 8 A schematic diagram of the enlarged structure at C;

[0042] Fig.12 For the present invention Figure 8 A schematic diagram of the structure at D of FIG.

[0043] Fig.13 For the present invention Fig. 9 A schematic diagram of the structure at E of FIG.

[0044] Fig.14 For the present invention Fig. 9 Enlarged structural diagram of F.

[0045] In the figure: 1. Catalytic treatment unit; 2. Filtration treatment unit; 3. Primary reverse osmosis unit; 4. Secondary reverse osmosis unit; 5. Clean water tank; 6. Energy recovery unit; 7. Mounting frame; 8. Reverse osmosis assembly; 9. Outer tube; 10. End cover; 11. Bracket; 12. Water collecting pipe; 13. Osmotic membrane assembly; 14. Shape memory net; 15. Sealing frame; 16. Elastic airbag diaphragm; 17. Temperature sensor; 18. Electric heating tube; 19. Vent; 20. Micro air pump; 21. Bubble generator; 22. Spiral flow channel; 23. Tangential jet nozzle; 24. Air purification unit; 25. Air pump; 26. Water outlet pipe; 27. Heat exchanger; 28 , branch pipe; 29, double-layer spiral pipe; 30, upper spiral pipe; 31, lower spiral pipe; 32, electric heating plate; 33, hollow rod; 34, catalyst tube; 35, sliding block; 36, telescopic tube; 37, fixed rod; 38, spring one; 39, distance sensor; 40, limit block; 41, feeding hopper; 42, one-way feed valve; 43, hollow groove; 44, telescopic rod one; 45, sealing block; 46, through hole; 47, arc piece; 48, spring two; 49, pressure sensor; 50, rotating rod; 51, blade; 52, bevel gear one; 53, bevel gear two; 54, drive motor; 55, rotating shaft; 56, telescopic rod two; 57, retaining ring. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6An embodiment of the present invention is a functionally integrated sewage multi-stage reverse osmosis treatment process, comprising a first-stage reverse osmosis unit 3 including a mounting frame 7 and a reverse osmosis assembly 8, wherein the mounting frame 7 is detachably mounted with a reverse osmosis assembly 8, wherein the reverse osmosis assembly 8 comprises an outer tube 9, both ends of the outer tube 9 are sleeved with end caps 10, the end cap 10 at the left end of the outer tube 9 is connected to the filtering treatment unit 2 through a pipeline and a booster pump, a bracket 11 is mounted on the inner wall of the outer tube 9, and the bracket 11 is close to the left end of the outer tube 9, a water collecting pipe 12 is arranged inside the outer tube 9, and the water collecting pipe 12, the bracket 11, the outer tube 9 and the end cap 10 are coaxially arranged ... The left end of the water pipe 12 is sealed, and the left end of the water collecting pipe 12 is in contact with the right outer wall of the bracket 11, the right end of the water collecting pipe 12 is an open end, and the right end of the water collecting pipe 12 is connected to the inner wall of the end cap 10 at the right end of the outer tube 9, the outer wall of the water collecting pipe 12 is provided with a permeable membrane assembly 13, the outer wall of the permeable membrane assembly 13 is provided with a membrane descaling module, the membrane descaling module includes a shape memory net 14, and the recovery temperature of the shape memory net 14 is 30°C-35°C, the outer surface of the shape memory net 14 is embedded with a sealing frame 15, the sealing frame 15 includes four groups of four groups of linear sealing frames 15 along the axial direction of the permeable membrane assembly 13 and a group of An annular sealing frame 15 is provided, and the annular sealing frame 15 is used to connect four groups of linear sealing frames 15. The side of the sealing frame 15 close to the permeable membrane assembly 13 is open. An elastic airbag diaphragm 16 is installed on the inner wall of the opening side of the sealing frame 15. The elastic airbag diaphragm 16 is used to seal the opening side of the sealing frame 15. A vent 19 is installed on the top of the sealing frame 15. The vent 19 is located at the cross connection of a group of linear sealing frames 15 and the annular sealing frame 15 directly above. A micro air pump 20 is provided on the front of the mounting frame 7, and the micro air pump 20 is connected to the vent 19 through a pipeline, and an air inlet valve is provided on the connecting pipeline. An exhaust pipe is provided on the outer wall of the pipeline, and an exhaust valve is provided on the exhaust pipe. An electric heating tube 18 is installed on the inner wall of the outer tube 9, and the electric heating tube 18 is located on the outside of the shape memory net 14. A temperature sensor 17 is embedded in the outer wall of the sealing frame 15, and the temperature sensor 17 is electrically connected to the electric heating tube 18. A bubble generator 21 is installed on the inner wall of the outer tube 9, and the bubble generator 21 is located on the left side of the bracket 11. A guide rod is installed on the inner wall of the outer tube 9, and the guide rod passes through the outer wall of the shape memory net 14, and the guide rod is located on both sides of the sealing frame 15, and the end of the guide rod away from the outer tube 9 is in contact with the outer wall of the permeable membrane assembly 13.

[0050] Further, the sewage enters the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 and is subjected to reverse osmosis purification treatment through the osmotic membrane assembly 13 in the reverse osmosis assembly 8. The impurities such as microorganisms in the sewage are intercepted and filtered through the osmotic membrane assembly 13. The impurities are accumulated on the outside of the osmotic membrane assembly 13 and the shape memory net 14. Gas is generated by the micro air pump 20 at a regular time. At this time, the air inlet valve on the pipeline is in an open state, and the exhaust valve on the exhaust pipe is in a closed state. The gas is transmitted to the sealing frame 15 through the pipeline, so that the gas in the sealing frame 15 increases, thereby causing the elastic airbag diaphragm 16 to expand and deform, and the elastic airbag diaphragm 16 moves to The outer wall of the permeable membrane component 13 protrudes, and the elastic airbag diaphragm 16 pushes the shape memory net 14 to deform in the direction away from the permeable membrane component 13, so that a gap is formed between the inner wall of the shape memory net 14 and the permeable membrane component 13, and the impurities attached to the outer wall of the permeable membrane component 13 are peeled off from the outer wall of the permeable membrane component 13 under the push of the shape memory net 14, and the impurities attached to the outer wall of the shape memory net 14 are automatically fallen off under the deformation of the shape memory net 14 itself, so as to achieve the purpose of automatically cleaning the permeable membrane component 13, and when the impurities are peeled off, the permeable membrane component 13 and the outer wall of the shape memory net 14 are separated to a certain extent. A certain gap is generated between the impurities attached to the outer wall of the shape memory net 14 and the outer wall of the permeable membrane component 13 and the shape memory net 14. Then, the gas in the sealing frame 15 is discharged by opening the exhaust valve, so that the elastic airbag diaphragm 16 is restored to the expanded state, and then micro-bubbles are generated by the bubble generator 21. The rupture energy generated when the micro-bubbles contact and rupture with the outer wall of the permeable membrane component 13 is used to further clean the impurities remaining on the outer wall of the permeable membrane component 13 and the outer wall of the shape memory net 14. Due to the existence of the gap, the micro-bubbles can enter the gap, which effectively improves the cleaning effect of the impurities and fully reduces the permeable membrane component. The stains on the outer wall of the component 13 are removed, and damage to the osmotic membrane component 13 is avoided, which is beneficial to prolonging the service life of the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4, and improving the treatment effect of the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 on sewage. After cleaning, the sewage to be purified in the outer tube 9 is heated by the electric heating tube 18, and the sewage temperature is detected by the temperature sensor 17, so that the sewage temperature reaches the recovery temperature of the shape memory network 14, and then the shape memory network 14 is restored to a state of fitting with the outer wall of the reverse osmosis component 8, so that it is convenient to deform again to clean the impurities attached to the outer wall of the osmotic membrane component 13.

[0051] See also Figure 2 and Figure 7An embodiment of the present invention is a functionally integrated multi-stage reverse osmosis treatment process for sewage, comprising a spiral flow channel 22 installed on the inner wall of an outer tube 9, and the spiral flow channel 22 is located on the outside of an electric heating tube 18, a tangential air nozzle 23 is installed on the bottom wall of the outer tube 9, and the number of installation groups of the tangential air nozzle 23 is several groups, an air purification unit 24 is installed at the bottom of the outer tube 9, and the air purification unit 24 includes an air filter and an ultraviolet sterilizer, an air pump 25 is arranged below the mounting frame 7, and the air outlet end of the air pump 25 is connected to the air inlet end of the air purification unit 24 through a pipeline, and the air outlet end of the air purification unit 24 is connected to the tangential air nozzle 23 through a pipeline.

[0052] Furthermore, by providing a spiral flow channel 22, the micro-bubbles generated by the bubble generator 21 flow in a spiral along the outer wall of the spiral flow channel 22 with the sewage, so that the micro-bubbles are evenly distributed on the outer wall of the shape memory net 14 and the osmotic membrane assembly 13, which is convenient for comprehensive cleaning of the shape memory net 14 and the outer wall of the osmotic membrane assembly 13. An air flow is generated by the air pump 25 and transported to the air purification unit 24 through a pipeline. The air purification unit 24 disinfects the incoming air flow, and then inputs it into the tangential air nozzle 23 through a pipeline, and then sprays outward from the tangential air nozzle 23. Then, under the push of the tangential air flow, the sewage in the auxiliary outer tube 9 flows in a spiral along the outer wall of the spiral flow channel 22, thereby ensuring the uniform distribution of the micro-bubbles, and the spiral flow of the sewage generates a spiral force to break the peeled impurities, avoiding the phenomenon that large impurities block the concentrated water pipeline at the right end of the first-stage reverse osmosis assembly 8 and the second-stage reverse osmosis assembly 8, which is conducive to maintaining the normal progress of the multi-stage sewage purification process.

[0053] See also Figure 1 , Figure 2 , Figure 8 and Fig.12The present invention provides an embodiment: a functionally integrated sewage multi-stage reverse osmosis treatment process, comprising a reverse osmosis component 8, a right side group of end caps 10 outer wall connected to the outlet pipe 26, and the left end of the outlet pipe 26 is connected to the outlet end of the water collecting pipe 12, the right end of the outlet pipe is connected to the energy recovery unit 6, the energy recovery unit 6 includes a heat exchanger 27, the outer wall of the outlet pipe 26 is connected to the branch pipe 28, and the right end of the branch pipe 28 is connected to the heat source outlet end of the heat exchanger 27, the outlet pipe 26 and the branch pipe 28 are both provided with electromagnetic valves on the outer wall, and the electromagnetic valve is electrically connected to the temperature sensor 17. A double-layer spiral pipe 29 is installed on the inner wall of the catalytic treatment unit 1, and the double-layer spiral pipe 29 includes an upper spiral pipe 30 and a lower spiral pipe 31. The upper spiral pipe 30 is loaded with a heat transfer liquid, and an electric heating plate 32 is installed on the inner wall of the upper spiral pipe. The electric heating plate 32 is used to heat the heat transfer liquid. Both ends of the lower spiral pipe 31 are connected to the cold source inlet and outlet of the heat exchanger 27 through pipes. A hollow rod 33 is installed through the top of the catalytic treatment unit 1, and the hollow rod 33 extends to the bottom wall of the catalytic treatment unit 1. A catalyst tube 34 is installed on the outer wall of the hollow rod 33, and the catalyst tube 34 is loaded with catalyst particles.

[0054] Furthermore, by inserting the catalyst tube 34 filled with catalyst particles into the catalytic treatment unit 1, the catalyst is used to react with the microorganisms and precipitable substances in the sewage to be treated, so that precipitation is generated in the sewage to be treated, and the sewage temperature in the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 is detected by the temperature sensor 17 in the outer tube 9. When the sewage temperature in the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 is the heated temperature for restoring the shape memory network 14 to its original state, the solenoid valve on the outlet pipe 26 is opened, and the solenoid valve on the branch pipe 28 is closed, so that the heated sewage flows into the heat exchange unit, and the heat energy in the sewage is returned through the heat exchange unit, and the heat energy is transmitted to the lower spiral pipe 3 in the catalytic treatment unit 1 through the pipeline. 1, heat is transferred to the catalytic treatment unit 1 through the lower spiral tube 31, which is beneficial for the sewage in the catalytic treatment unit 1 to reach a suitable temperature for the catalyst particles to perform a catalytic reaction, thereby improving the catalytic treatment effect of the catalytic treatment unit 1 on the sewage. When the sewage in the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 is in an unheated state, the solenoid valve on the outlet pipe 26 is closed, and the solenoid valve on the branch pipe 28 is opened, so that the sewage can flow into the next treatment step without passing through the heat exchanger 27. At this time, the heat transfer solution in the upper spiral tube 30 is heated by the electric heating plate 32, and then the sewage in the catalytic treatment unit 1 is heated, so as to maintain the catalytic treatment effect of the catalytic treatment unit 1 on the sewage.

[0055] See also Figure 8 , Fig. 9 , Fig.10 , Fig.12 , Fig.13 and Fig.14 An embodiment of the present invention is a multi-stage reverse osmosis treatment process for sewage with integrated functions, wherein a catalyst tube 34 comprises a hollow mesh frame near the inner wall of the catalytic treatment unit 1 and a hollow tube near the hollow rod 33, wherein the hollow tube is a non-hollow structure, a limit block 40 is fixedly installed on the inner wall of the hollow tube, and the limit block 40 is located at one end of the hollow mesh frame in the hollow tube, a sliding block 35 is slidably connected to the inner wall of the hollow tube, and the sliding block 35 is located between the limit block 40 and the hollow rod 33, a fixed rod 37 is installed on the inner wall of the hollow mesh frame, and the fixed rod 37 is a T-shaped rod, and a telescopic tube 36 is sleeved on the outer wall of the fixed rod 37, and the telescopic tube 36 slides between the fixed rod 37 The telescopic tube 36 and the fixed rod 37 are connected in parallel with the inner wall of the catalyst tube 34. A spring 38 is installed on the inner wall of the telescopic tube 36, and one end of the spring 38 is connected to the right end of the fixed rod 37. A distance sensor 39 is installed on the inner wall of the telescopic tube 36 away from the hollow rod 33. The distance sensor 39 is used to detect the distance between itself and the left outer wall of the sliding contact part of the T-shaped fixed rod 37 and the telescopic rod inner wall, and set the standard distance between the distance sensor 39 and the left outer wall of the sliding contact part of the T-shaped fixed rod 37 and the telescopic rod inner wall as X. A feeding hopper 41 is installed through the outer wall of the sliding block 35 close to the hollow rod 33. The feeding port side of the feeding hopper 41 is The feeding hopper 41 is fitted with the inner wall of the hollow tube, and the two are slidably connected. The discharge pipe end of the feeding hopper 41 passes through the outer wall of the sliding block 35, and the discharge pipe end extends to the bottom of the fixed rod 37. The outer wall of the discharge pipe end of the feeding hopper 41 is provided with a one-way feed valve 42, and the one-way feed valve 42 is electrically connected to the distance measuring sensor 39. The outer wall of the hollow rod 33 is provided with a through hole 46, and the through hole 46 is used to connect the hollow rod 33 with the catalyst tube 34. The inner wall of the hollow rod 33 is provided with a hollow groove 43. The number of installation groups of the hollow groove 43, the through hole 46 and the catalyst tube 34 is the same, and the hollow groove 43 is located above the through hole 46. A telescopic rod 44 is installed inside the hollow groove 43, and the telescopic rod 44 is installed inside the hollow groove 43. The output end of 4 is connected with a sealing block 45, which passes through the bottom wall of the hollow groove 43 and extends to the inside of the through hole 46. The sealing block 45 is used to seal the through hole 46. The top wall of the hollow tube close to one end of the hollow rod 33 is embedded with a pressure sensor 49, a spring 48 and an arc-shaped piece 47. The spring 48 is located on both sides of the pressure sensor 49, and the arc-shaped piece 47 is located below the spring 48 and the pressure sensor 49. The pressure sensor 49 is electrically connected to the telescopic rod 1 44, the top of the spring 48 is fixedly connected to the inner wall of the hollow tube, the bottom of the spring 48 is fixedly connected to the top of the arc-shaped piece, and the embedded connection between the arc-shaped piece 47 and the hollow tube is a sliding connection.

[0056] Furthermore, the sewage in the catalytic treatment unit 1 is catalytically treated by the catalyst particles filled in the catalyst tube 34. As the catalyst particles are used, the catalyst particles inside the hollow mesh frame gradually decrease, so that the extrusion thrust on the outer wall of the sliding block 35 close to the hollow mesh frame gradually decreases. Under the pull of the spring 38 and the push of the catalyst particles loaded between the sliding block 35 and the sealing block 45, the sliding block 35 gradually slides in the direction close to the limit block 40. The sliding block 35 drives the telescopic tube 36 to slide along the outer wall of the fixed rod 37 in the direction close to the hollow mesh frame. The distance between itself and the outer wall of the fixed rod 37 is detected by the distance sensor 39. When the distance sensor 39 When it is detected that the distance reaches the standard distance X, the one-way feed valve 42 is opened, and the one-way feed valve 42 remains in the open state for a certain period of time, so that the catalyst particles loaded between the sliding plate and the sealing block 45 are transported from the inside of the hollow tube to the inside of the hollow mesh frame, and at this time, the sealing block 45 is in a state of sealing the through hole 46. By setting the one-way feed valve 42 and the sealing block 45, it is avoided that sewage enters the hollow tube and the hollow rod when the catalyst particles are added to the inside of the hollow mesh frame, and it is avoided that the catalyst particles in the hollow tube and the hollow rod 33 react with the sewage. Catalyst particles are added to the hollow mesh frame through the feeding hopper 41, so that the catalyst particles in the hollow mesh frame increase. The catalyst particles between the sliding block 35 and the sealing block 45 are reduced. Under the joint action of the two, the sliding block 35 is pushed to slide along the inner wall of the hollow tube in the direction away from the limit block 40. When all the catalyst particles between the sliding block 35 and the sealing block 45 are transported to the inside of the hollow mesh frame, the time for the one-way valve to remain in the open state reaches the set value, so that the one-way valve is closed, and then the telescopic rod 44 is contracted to pull the sealing block 45 to move upward, so that the through hole 46 leaks out, so that the catalyst particles filled in the hollow rod 33 enter the hollow tube of the catalyst tube 34 through the through hole 46, and the catalyst particles are replenished to the space between the sliding block 35 and the sealing block 45. When the catalyst particles in the hollow tube are replenished to When the pressure reaches a certain level, the catalyst particles squeeze the arc piece 47 to move upward, and the arc piece 47 squeezes the spring 2 48 upward, and the arc piece 47 applies pressure to the pressure sensor 49. When the pressure sensor 49 detects that the pressure reaches the set pressure value, the telescopic rod 1 44 extends to push the sealing block 45 to move downward to seal the through hole 46, and the sealing block 45 is opened again after the one-way feed valve 42 is opened and closed, so as to prevent the catalyst particles in the hollow rod 33 from getting wet, thereby achieving the purpose of automatically replenishing the catalyst particles in the catalyst tube 34, so that the catalyst particles in the catalyst tube 34 remain sufficient, so as to effectively catalyze the sewage to be purified.

[0057] See also Figure 1 , Figure 8 , Fig.11 and Fig.12, an embodiment provided by the present invention: a functionally integrated sewage multi-stage reverse osmosis treatment process, comprising a catalytic treatment unit 1 having an outer wall through which a rotating rod 50 is installed, a blade 51 is installed on the outer wall of the rotating rod 50, and the blade 51 is located below the outlet of the pipe that introduces the sewage to be treated into the catalytic treatment unit 1, a bevel gear 1 52 is sleeved on the outer wall of the rotating rod 50, and the bevel gear 1 52 is located on the left side of the blade 51, a bevel gear 2 53 is sleeved on the outer wall of the hollow rod 33, and the bevel gear 2 53 is meshed with the bevel gear 1 52, a support frame is installed on the outer wall of the catalytic treatment unit 1, a driving motor 54 is arranged on the top of the support frame, and the output end of the driving motor 54 is connected to a rotating shaft 55 through a coupling, a groove is arranged on the right end of the rotating rod 50, and the rotating shaft 55 is inserted into the groove, a telescopic rod 2 56 is embedded in the outer wall of the rotating rod 50, and a clamping ring 57 is connected to the output end of the telescopic rod 2 56, and the clamping ring 57 is located between the inner wall of the groove and the rotating shaft 55.

[0058] Furthermore, when the sewage to be treated is introduced into the catalytic treatment unit 1 through the pipeline, the sewage flows onto the blade 51, and then the blade 51 drives the rotating rod 50 to rotate, the rotating rod 50 drives the bevel gear 1 52 to rotate, the bevel gear 1 52 drives the bevel gear 2 53 to rotate, and then drives the hollow rod 33 to rotate, so that the hollow rod 33 drives the catalyst tube 34 to rotate, so that the catalyst particles are evenly diffused into the catalytic treatment unit 1, and under the stirring action of the catalyst tube 34, the mixing effect of the catalyst particles and the sewage is improved, which is conducive to improving the catalytic treatment effect of the sewage. When the sewage treatment unit 1 is in a state where no sewage is introduced, the telescopic rod 56 is extended, pushing the clamping ring 57 to move toward the direction close to the rotating shaft 55, and the inner wall of the clamping ring 57 is engaged with the outer wall of the rotating shaft 55, thereby connecting the rotating shaft 55 with the rotating rod 50, and the rotating shaft 55 is driven to rotate by the driving motor 54, thereby driving the rotating rod 50 to rotate, thereby achieving the purpose of driving the hollow rod 33 to rotate. By setting the blades 51 and the driving motor 54, the purpose of driving the hollow rod 33 to rotate can be achieved in different states, and energy consumption is reduced, thereby improving the energy saving of the multi-stage sewage treatment process.

[0059] See also Figure 1 and Figure 2The present invention provides an embodiment: a functionally integrated sewage multi-stage reverse osmosis treatment process, wherein the filtering treatment unit 2 includes a quartz sand filter, an activated carbon filter and a security filter in sequence, and adjacent filters are connected by a delivery pump and a pipeline. The sewage treated by the catalytic treatment unit 1 is filtered by the filtering treatment unit 2 to remove the sediment and filterable impurities in the sewage. The right end caps 10 of the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 are connected to a concentrated water return pipe, and the end of the concentrated water return pipe away from the end cap 10 is connected to the water inlet pipe of the filtering treatment unit 2, thereby achieving the purpose of concentrated water reflux, which is beneficial to reducing concentrated water discharge, improving sewage treatment effect and environmental friendliness of the sewage multi-stage reverse osmosis treatment process.

[0060] Working principle: First, the sewage to be treated is passed into the catalytic treatment unit 1 for catalytic treatment to produce precipitates. During the catalytic process, the sewage in the catalytic treatment unit 1 is heated by the lower spiral tube 31 and / or the electric heating plate 32 to achieve the optimal activity state of the catalyst. Then, the sewage after catalytic treatment is passed into the filtration treatment unit 2 through a delivery pump and a pipeline for sedimentation and filtration treatment. The filtration treatment unit 2 includes a quartz sand filter, an activated carbon filter and a security filter in sequence, and adjacent filters are connected by a delivery pump and a pipeline. The sewage after filtration and sedimentation treatment is then passed into the primary reverse osmosis unit 3 through a booster pump and a pipeline for a primary reverse osmosis treatment. The sewage after the primary reverse osmosis treatment is passed into the secondary reverse osmosis unit through a booster pump and a pipeline for a secondary reverse osmosis treatment. The sewage after the secondary reverse osmosis treatment is passed into the clean water tank 5 through a delivery pump and a pipeline, and the membrane descaling modules arranged in the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4 need to be regularly descaled for the primary reverse osmosis unit 3 and the secondary reverse osmosis unit 4.

[0061] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A functionally integrated sewage multi-stage reverse osmosis treatment process, characterized in that: include: Step 1: The wastewater to be treated is passed into a catalytic treatment unit (1) for catalytic treatment to generate precipitate; Step 2: The wastewater after catalytic treatment is passed through a delivery pump and a pipeline into a filtration treatment unit (2) for sedimentation and filtration treatment; Step 3: The sewage after filtration and sedimentation treatment is passed through a booster pump and a pipeline into a primary reverse osmosis unit (3) for a reverse osmosis treatment; Step 4: The sewage after the primary reverse osmosis treatment is passed through a booster pump and a pipeline into a secondary reverse osmosis unit (4) for secondary reverse osmosis treatment; Step 5: The sewage after the secondary reverse osmosis treatment is passed into the clean water tank (5) through a delivery pump and a pipeline; The steps 3 and 4 include regularly descaling the membranes of the primary reverse osmosis unit (3) and the secondary reverse osmosis unit (4) by using a membrane descaling module provided in the primary reverse osmosis unit (3) and the secondary reverse osmosis unit (4); The primary reverse osmosis unit (3) comprises a mounting frame (7) and a reverse osmosis assembly (8); the mounting frame (7) has a reverse osmosis assembly (8) detachably mounted therein; the reverse osmosis assembly (8) comprises an outer tube (9); both ends of the outer tube (9) are sleeved with end caps (10); a bracket (11) is mounted on the inner wall of the outer tube (9); a water collecting pipe (12) is arranged inside the outer tube (9); the water collecting pipe (12), the bracket (11), the outer tube (9) and the end cap (10) are arranged coaxially; an osmotic membrane assembly (13) is sleeved on the outer wall of the water collecting pipe (12); a membrane descaling module is sleeved on the outer wall of the osmotic membrane assembly (13); the membrane descaling module comprises a shape memory net (14); a sealing frame (15) is embedded in the outer surface of the shape memory net (14); the sealing frame The side of (15) close to the permeable membrane assembly (13) is open, and an elastic air bag membrane (16) is installed on the inner wall of the open side of the sealing frame (15). A vent (19) is installed on the top of the sealing frame (15). A micro air pump (20) is arranged on the front of the mounting frame (7), and the micro air pump (20) is connected to the vent (19) through a pipeline. An electric heating tube (18) is installed on the inner wall of the outer tube (9), and the electric heating tube (18) is located on the outside of the shape memory net (14). A temperature sensor (17) is embedded in the outer wall of the sealing frame (15), and the temperature sensor (17) is electrically connected to the electric heating tube (18). A bubble generator (21) is installed on the inner wall of the outer tube (9), and the bubble generator (21) is located on the left side of the bracket (11).

2. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 1 is characterized by: A guide rod is installed on the inner wall of the outer tube (9), the guide rod passes through the outer wall of the shape memory net (14), and the guide rod is located on both sides of the sealing frame (15). The end of the guide rod away from the outer tube (9) is in contact with the outer wall of the permeable membrane assembly (13).

3. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 1 is characterized by: The inner wall of the outer tube (9) is provided with a spiral flow channel (22), and the spiral flow channel (22) is located outside the electric heating tube (18); the bottom wall of the outer tube (9) is provided with a tangential air nozzle (23); the bottom of the outer tube (9) is provided with an air purification unit (24), and the air purification unit (24) comprises an air filter and an ultraviolet sterilizer; an air pump (25) is provided below the mounting frame (7), and an air outlet end of the air pump (25) is connected to an air inlet end of the air purification unit (24) via a pipeline, and an air outlet end of the air purification unit (24) is connected to the tangential air nozzle (23) via a pipeline.

4. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 1 is characterized by: The outer wall of a group of end covers (10) on the right side of the reverse osmosis assembly (8) is connected to a water outlet pipe (26), and the left end of the water outlet pipe (26) is connected to the water outlet end of the water collecting pipe (12), and the right end of the water outlet pipe is connected to an energy recovery unit (6), and the energy recovery unit (6) includes a heat exchanger (27). The outer wall of the water outlet pipe (26) is connected to a branch pipe (28), and the right end of the branch pipe (28) is connected to the heat source outlet end of the heat exchanger (27). Solenoid valves are provided on the outer walls of the water outlet pipe (26) and the branch pipe (28), and the solenoid valves are electrically connected to the temperature sensor (17).

5. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 4 is characterized by: The inner wall of the catalytic treatment unit (1) is installed with a double-layer spiral pipe (29), the double-layer spiral pipe (29) comprising an upper spiral pipe (30) and a lower spiral pipe (31), the upper spiral pipe (30) is loaded with a heat transfer liquid, the inner wall of the upper spiral pipe (30) is installed with an electric heating plate (32), the electric heating plate (32) is used to heat the heat transfer liquid, the two ends of the lower spiral pipe (31) are respectively connected to the cold source inlet and outlet of the heat exchanger (27) through pipes, a hollow rod (33) is installed through the top of the catalytic treatment unit (1), and the hollow rod (33) extends to the bottom wall of the catalytic treatment unit (1), and a catalyst tube (34) is installed on the outer wall of the hollow rod (33), and the catalyst tube (34) is loaded with catalyst particles.

6. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 5 is characterized by: The catalyst tube (34) comprises a hollow mesh frame near the inner wall of the catalytic treatment unit (1) and a hollow tube near the hollow rod (33), the inner wall of the hollow tube having a limit block (40) fixedly installed, and the limit block (40) is located at one end of the hollow tube near the hollow mesh frame, the inner wall of the hollow tube having a sliding block (35) slidably connected, the sliding block (35) being located between the limit block (40) and the hollow rod (33), the inner wall of the hollow mesh frame having a fixed rod (37) installed, the fixed rod (37) is a T-shaped rod, the outer wall of the fixed rod (37) is provided with a telescopic tube (36), and the telescopic tube (36) and the fixed rod (37) are parallel to the inner wall of the catalyst tube (34), the inner wall of the telescopic tube (36) is installed with a spring (38), and one end of the spring (38) is connected to the right end of the fixed rod (37), the inner wall of the telescopic tube (36) away from the hollow rod (33) is installed with a distance sensor (39), and the sliding block (35) is close to the side of the hollow rod (33) A feeding hopper (41) is installed through the outer wall, a one-way feeding valve (42) is provided on the outer wall of the feeding hopper (41), and the one-way feeding valve (42) is electrically connected to the distance measuring sensor (39), a through hole (46) is opened on the outer wall of the hollow rod (33), and the through hole (46) is used to connect the hollow rod (33) and the catalyst tube (34), and a hollow groove (43) is provided on the inner wall of the hollow rod (33), and a telescopic rod (44) is installed inside the hollow groove (43), and the telescopic rod (44) is electrically connected to the distance measuring sensor (39). 4) is connected to an output end thereof with a sealing block (45), the sealing block (45) being used to seal the through hole (46), a pressure sensor (49), a second spring (48) and an arc-shaped sheet (47) being embedded in a top wall of one end of the hollow tube close to the hollow rod (33), the second spring (48) being located on both sides of the pressure sensor (49), the arc-shaped sheet (47) being located below the second spring (48) and the pressure sensor (49), and the pressure sensor (49) being electrically connected to the first telescopic rod (44).

7. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 6 is characterized by: The top end of the second spring (48) is fixedly connected to the inner wall of the hollow tube, the bottom end of the second spring (48) is fixedly connected to the top of the arc-shaped piece (47), and the embedded connection between the arc-shaped piece (47) and the hollow tube is a sliding connection.

8. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 5 is characterized by: A rotating rod (50) is installed through the outer wall of the catalytic treatment unit (1), a blade (51) is installed on the outer wall of the rotating rod (50), a bevel gear 1 (52) is sleeved on the outer wall of the rotating rod (50), and the bevel gear 1 (52) is located on the left side of the blade (51), and a bevel gear 2 (53) is sleeved on the outer wall of the hollow rod (33), and the bevel gear 2 (53) is meshed with the bevel gear 1 (52).

9. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 8, characterized in that: The catalytic treatment unit (1) is provided with a support frame on its outer wall, a driving motor (54) is provided on the top of the support frame, an output end of the driving motor (54) is connected to a rotating shaft (55) via a coupling, a groove is provided at the right end of the rotating rod (50), and the rotating shaft (55) is inserted into the groove, a telescopic rod (56) is embedded in the outer wall of the rotating rod (50), a clamping ring (57) is connected to the output end of the telescopic rod (56), and the clamping ring (57) is located between the inner wall of the groove and the rotating shaft (55).

10. The functionally integrated sewage multi-stage reverse osmosis treatment process according to claim 1, characterized in that: The filtering treatment unit (2) comprises a quartz sand filter, an activated carbon filter and a security filter in sequence, and adjacent filters are connected via a delivery pump and a pipeline.

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