Treatment system for high-concentration desizing, sizing and dyeing wastewater

Abstract

The utility model discloses a treatment system for high-concentration desizing, slashing and dyeing wastewater, which is characterized in that sewage is subjected to quality-based and split-flow treatment according to different properties, desizing and slashing high-concentration sewage is independently collected and then is lifted to a homogeneous hydrolysis acidification pool and a high-efficiency anaerobic reactor for treatment through a pump, and then effluent is connected to a comprehensive sewage adjusting pool through a sedimentation pool; dyeing wastewater and ground flushing and domestic sewage are discharged to a grid well, a microfiltration grid and a comprehensive sewage adjusting tank; after being treated by different pretreatment processes, the wastewater respectively enters a comprehensive wastewater adjusting tank, and then is subjected to advanced treatment by a high multiplication biological treatment tank, a sedimentation tank, an intermediate water tank, a gas-liquid jet flow biological aeration filter tank, a high density clarification tank and a double-membrane method advanced treatment facility, so that pollutants are comprehensively reduced, and the quality of the effluent meets the production reuse water quality standard; and cyclic utilization can be realized. The system has the advantages of simple treatment flow, small occupied area, low construction cost, low operation cost, high automation degree, convenience in operation and management and the like.

Description

Technical Field

[0001] The utility model relates to a treatment system for high-concentration desizing, sizing and dyeing wastewater, belonging to the technical field of sewage treatment. Background Art

[0002] The survey investigated an enterprise that mainly produces various types of pure cotton and blended interwoven high-end yarn-dyed fabrics, with a production capacity of 4 million meters / month. The fabrics produced by the company include high-count and high-density poplin, Oxford, twill, satin, dobby, bubble cloth, youth cloth, crepe and other varieties, and the raw materials used include pure cotton, cotton / nylon, cotton / spandex, cotton / tencel, cotton / polyester, gold and silver silk, etc. All fabrics are produced under a strict quality management system using advanced equipment and technology, high-quality raw yarn, and high-quality environmentally friendly dyes and chemicals. The company's main products are dyeing, and the dyeing process includes dyeing yarn, desizing, and sizing yarn, and a large amount of high-concentration dyeing wastewater is generated in the process. At the same time, due to environmental protection requirements, sewage discharge is constantly improving, and the sewage discharge indicators of polluting enterprises must meet the new emission requirements to meet the increasingly stringent national environmental protection control requirements. Therefore, it is very necessary to develop a high-concentration desizing, sizing, and dyeing wastewater treatment system to solve the treatment and deep treatment of high-concentration sewage, meet the requirements of recycling, and achieve simple treatment process, less operation and maintenance workload, high degree of automation and management, low investment, and low operating costs.

[0003] The original sewage treatment process generated during desizing, sizing and dyeing is as follows: sewage - screen - regulating tank - hydrolysis acidification tank - biochemical activated sludge method - hydrolysis acidification tank - contact oxidation tank - secondary sedimentation tank - flotation - effluent tank, and the effluent is included in the municipal sewage treatment plant; because the treatment process technology and system equipment cannot meet the high emission standards, the treatment process technology and system equipment have the following problems:

[0004] (1) Dyeing, floor washing and domestic sewage contain a certain amount of inorganic matter, cotton yarn and suspended matter. The general treatment process is chemical coagulation and sedimentation. The sedimentation operation is affected by the amount of chemical addition, mechanical failure, sedimentation structure and operation management. The effluent is extremely unstable, and the amount of sedimentation sludge is large, the sedimentation tank occupies a large area and the construction cost is high;

[0005] (2) Problems such as uneven mixing of mud and water in the hydrolysis and acidification tank, sludge sedimentation, short-circuiting, sludge loss, pH imbalance, and mechanical stirring failures lead to low treatment efficiency;

[0006] (3) After entering high-concentration sewage and undergoing hydrolysis and acidification, sulfur and hydrogen sulfide waste gas are easily generated, resulting in the risk of air environment in sewage treatment plants affecting human health;

[0007] (4) The biological treatment pool is affected by the fact that the sewage entering the pool carries a certain amount of inorganic matter and cotton yarn. Inorganic sludge accounts for 60% of the long-term accumulated biochemical activated sludge, the oxygen consumption is high, and the sludge concentration is low during operation, and there is no sludge return system, resulting in low treatment efficiency;

[0008] (5) As the concentration of sludge in the biological treatment pool increases, efficient aeration support is required to meet the oxygenation needs. The general aeration equipment on the market cannot meet the oxygenation needs, resulting in low treatment efficiency;

[0009] (6) The sludge concentration in the biological treatment pool increases, resulting in sludge swelling and the production of filamentous bacteria. The general aeration equipment on the market does not have the oxygenation / stirring / cutting functions, which affects normal operation;

[0010] (7) The biological treatment pool is not equipped with online instrument control to provide timely feedback on sludge concentration, temperature, pH value, etc., and it is impossible to optimize the sewage treatment operation process through feedback information to ensure stable system operation;

[0011] (8) Wastewater pretreatment and biochemical treatment technologies do not take pollution reduction into consideration. While improving treatment efficiency, they cannot minimize the amount of sludge produced. Summary of the invention

[0012] The utility model aims to provide a treatment system for high-concentration desizing, sizing and dyeing wastewater. The system performs separation and diversion treatment according to different properties of wastewater. The high-concentration wastewater from desizing and sizing is collected separately and then lifted to a homogenous hydrolysis acidification tank and a high-efficiency anaerobic reactor (internal reflux sedimentation tank) for treatment by a pump. The effluent from the sedimentation tank is connected to a comprehensive sewage regulating tank. The dyeing wastewater, ground washing and domestic sewage are discharged to a grid well-microfiltration grid-comprehensive sewage regulating tank. After being treated by different pretreatment processes, they are respectively entered into the comprehensive sewage regulating tank and then subjected to deep treatment in a high-multiplication biological treatment tank-sedimentation tank-intermediate water tank-gas-liquid jet biological aeration filter-high-density clarification tank-double membrane method deep treatment facility, so as to comprehensively reduce pollutants, so that the effluent water quality meets the production reuse water quality standard and can be recycled.

[0013] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a treatment system for high-concentration desizing, sizing and dyeing wastewater, characterized in that it includes a high-concentration sewage collection tank, a homogeneous hydrolysis acidification tank, a high-efficiency anaerobic reactor, an internal reflow sedimentation tank, a comprehensive sewage regulating tank, a high-multiplication biological treatment tank, a secondary sedimentation tank, a gas-liquid jet biological aeration filter, a high-density clarification tank, a double-membrane deep treatment facility and a monitoring discharge tank, the inlet of the high-concentration sewage collection tank is connected to the high-concentration desizing and sizing sewage, and the outlet is connected to the inlet of the homogeneous hydrolysis acidification tank through a pipeline, the outlet of the homogeneous hydrolysis acidification tank is connected to the high-efficiency anaerobic reactor and the internal reflow sedimentation tank in sequence through a pipeline, the outlet of the internal reflow sedimentation tank is connected to the comprehensive sewage regulating tank through a pipeline, the water inlet of the comprehensive sewage regulating tank is connected to the dyeing wastewater, and the outlet of the comprehensive sewage regulating tank is connected to the high-multiplication biological treatment tank, the secondary sedimentation tank, the gas-liquid jet biological aeration filter, the high-density clarification tank, the double-membrane deep treatment facility and the monitoring discharge tank in sequence through a pipeline.

[0014] Furthermore, water pumps are provided between the high-concentration sewage collection tank and the homogeneous hydrolysis acidification tank, between the homogeneous hydrolysis acidification tank and the high-efficiency anaerobic reactor, and between the comprehensive sewage regulating tank and the high-multiplication biological treatment tank, and the water body in the previous stage is lifted to the high-multiplication biological treatment tank by the water pumps.

[0015] Furthermore, a first intermediate water tank is provided between the secondary sedimentation tank and the gas-liquid jet biological aeration filter, and a water pump is provided between the first intermediate water tank and the gas-liquid jet biological aeration filter.

[0016] Furthermore, a second intermediate water tank is provided between the high-density clarification tank and the double-membrane deep treatment facility, and a water pump is provided between the second intermediate water tank and the double-membrane deep treatment facility.

[0017] Furthermore, the bottom sludge discharge ports of the high-efficiency anaerobic reactor, internal recirculation sedimentation tank, high-multiplication biological treatment tank, secondary sedimentation tank and high-density clarification tank are all connected to the sludge tank, and a sludge dewatering device is provided on the rear end outlet pipeline of the sludge tank.

[0018] Furthermore, a screen well is provided at the sewage end of the comprehensive sewage regulating tank, and a microfiltration screen is provided in the screen well.

[0019] Furthermore, the sewage end of the comprehensive sewage regulating tank is also connected to ground flushing and domestic sewage.

[0020] Furthermore, the air source required by the entire system is provided by a centrifugal blower.

[0021] Furthermore, the homogeneous hydrolysis zone is provided with baffles and guide plates staggered up and down, and a liquid-solid ejector is provided at the bottom.

[0022] Furthermore, the high-efficiency anaerobic reactor is provided with a radiation dot matrix water distribution device and a three-phase separation device. The three-phase separation device adopts a triangular separator arranged in a multi-type manner. The triangular separator is made of FRP and has a smooth surface. A methane collection hood is provided above the three-phase separation device. The three-phase separation device efficiently separates the ascending gas, liquid and solid. The methane outlet of the high-efficiency anaerobic reactor is connected to the methane gas storage tank after hydrogen sulfide is removed through a water seal desulfurization device.

[0023] The beneficial effects of the utility model are:

[0024] (1) Eliminate pre-treatment coagulation and sedimentation, greatly reduce construction costs (70% higher than the construction cost of microfiltration grids), reagent consumption costs, and reduce sludge generation by 50%; use proprietary equipment microfiltration grids, which use 40-mesh metal wire mesh to efficiently separate inorganic substances, cotton yarn and fibers washed from the ground, with a separation efficiency of ≥85%. It is easy to operate and maintain, has a high degree of automation, and the operating cost accounts for only 20% of the sedimentation process consumption; solve the problem of long-term accumulation of inorganic sludge, resulting in a high proportion of inorganic sludge in high-multiplication biochemical pools and low treatment efficiency;

[0025] (2) Desizing and sizing high-concentration wastewater is treated by quality separation and diversion. Desizing and sizing high-concentration wastewater is collected separately and pumped to a homogenous hydrolysis acidification tank and a high-efficiency anaerobic reactor (internal reflux sedimentation tank) for treatment, which can greatly reduce the treatment scale and equipment investment. The use of a homogenous hydrolysis acidification tank + a second-generation QCS high-efficiency anaerobic reactor greatly improves the removal efficiency, with a removal rate of ≤90%;

[0026] (3) The three-phase separation device adopts a multi-type layout, with a triangular angle (proprietary and not explained). The triangular separator is made of FRP, with a specially treated surface smoothness, no sticking, low surface friction coefficient, and smooth sludge settling on the surface. The three-phase separators in the tank are arranged in a triangular overlapping pattern. The three-phase separation device can efficiently separate the gas, liquid and solid in the ascending flow; it solves the problem of sludge retention and prevents the loss of sludge, so that the sludge concentration in the anaerobic reactor is always maintained at a high sludge load, greatly improving the treatment efficiency;

[0027] (4) The aerator of the high-multiplication biological treatment pool is equipped with a proprietary device, a disc-type jet aeration device, which can effectively overcome the sludge swelling and the production of filamentous bacteria, thereby ensuring the amount and activity of biological bacteria in the high-multiplication biological treatment pool and meeting long-term normal operation;

[0028] (5) High-multiplication biological treatment pool, the treatment load is 15% higher than the existing treatment technology, the high-multiplication biological treatment pool operates with a sludge concentration of 0.6-1.0 grams, and is equipped with a proprietary device, a disc jet aeration device, under extremely high sludge concentration and high-concentration sewage. The disc jet aeration device has the characteristics of high oxygenation efficiency, no clogging, no failure, low sludge generation and high treatment efficiency. After sewage treatment, COD ≤ 70, and most organic pollution is effectively removed;

[0029] (6) The homogeneous hydrolysis acidification tank is designed with a length-to-width ratio of 2:1, and the baffle structure is improved to change the flow pattern of the fluid, so that the liquid-solid flow goes downward through the diversion and then rises upward, over and over again, eliminating short-circuit, achieving the entry of sewage and liquid-solid mixed flow, so that the liquid and solid are fully mixed and the contact time is extended; it solves the problems of short-circuit flow, uneven liquid-solid mixing, and mechanical stirring failure, reduces equipment investment and operating costs, and improves the efficiency of homogeneous hydrolysis treatment;

[0030] (7) A radiation dot matrix water distribution device is installed in the high-efficiency anaerobic reactor. The diameter of the radiation branch pipe of the radiation dot matrix water distribution device adopts low flow rate and low resistance water distribution, and adopts multi-hole water distribution (the number of openings is designed according to the water volume, point hole service area, etc.), which enhances the radiation diffusion water distribution flow rate, reduces the hydraulic flow velocity resistance of the radiation branch pipe, and improves the energy efficiency of the radiation dot matrix water distribution device. At the same time, it also solves the problem of uneven flow and blockage of the point holes of the radiation branch pipe, thereby improving the uniformity of water distribution, disturbance force and granulation conditions of the anaerobic reactor bed sludge; at the same time, the sewage is transported to each radiation dot matrix water distribution device placed at the bottom of the anaerobic reactor through the water inlet distribution control device, and then the water is discharged from the radiation branch pipe holes into the anaerobic reactor bed sludge area. Each radiation branch pipe hole has uniform water distribution and strong water discharge force, so as to solve the problems of uneven overall water distribution, blockage of water distribution points, short flow and strong disturbance of bed sludge in the anaerobic reactor.

[0031] In summary, this system uses quality-separation and diversion treatment combined with sludge return digestion technology to return 100% of the settled sludge to the hydrolysis tank and high-multiplication biological treatment facility for reverse digestion, thereby increasing the sludge concentration in the hydrolysis tank and high-multiplication biological treatment facility, greatly improving the sewage treatment efficiency and ultra-low sludge discharge. This system also has the advantages of simple treatment process, small footprint, low engineering cost, low operating cost, high degree of automation, and convenient operation and management. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of this system.

[0033] Figure 2 It is a partial structural diagram of the three-phase separation device in the high-efficiency anaerobic reactor of this system.

[0034] Marked in the figure are: 1-high-concentration sewage collection tank, 2-homogeneous hydrolysis acidification tank, 3-high-efficiency anaerobic reactor, 4-internal reflow sedimentation tank, 5-integrated sewage regulating tank, 6-high-multiplication biological treatment tank, 7-second sedimentation tank, 8-first intermediate water tank, 9-gas-liquid jet biological aeration filter, 10-high-density clarification tank, 11-second intermediate water tank, 12-double membrane deep treatment facility, 13-monitoring discharge tank, 14-sludge tank, 15-sludge dewatering device, 16-centrifugal blower, 17-three-phase separation device, 18-methane collection hood. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] like Figure 1 As shown, a treatment system for high-concentration desizing, sizing and dyeing wastewater comprises a high-concentration sewage collection tank 1, a homogeneous hydrolysis acidification tank 2, a high-efficiency anaerobic reactor 3, an internal reflow sedimentation tank 4, a comprehensive sewage regulating tank 5, a high-multiplication biological treatment tank 6, a secondary sedimentation tank 7, a first intermediate water tank 8, a gas-liquid jet biological aeration filter 9, a high-density clarification tank 10, a second intermediate water tank 11, a double-membrane method deep treatment facility 12 and a monitoring discharge tank 13, wherein the inlet of the high-concentration sewage collection tank 1 is connected to the high-concentration desizing and sizing sewage, and the outlet is connected to the inlet of the homogeneous hydrolysis acidification tank through a pipeline, and the outlet is pumped to the homogeneous hydrolysis acidification tank 2, the high-efficiency anaerobic reactor 3 and The internal return sedimentation tank 4 is connected to the comprehensive sewage regulating tank 5; the sewage inlet end of the comprehensive sewage regulating tank 5 is provided with a grid well, and a microfiltration grid is provided in the grid well. The sewage inlet end is connected to dyeing wastewater, ground washing and domestic sewage, and is separated by the microfiltration grid in the grid well and flows to the comprehensive sewage regulating tank 5; the sewage of the comprehensive sewage regulating tank 5 is pumped to the high-multiplication biological treatment tank 6, the second sedimentation tank 7, and the first intermediate water tank 8, and then pumped to the gas-liquid jet biological aeration filter 9, the high-density clarification tank 10, and the second intermediate water tank 11, and finally the sewage is pumped to the lifting double membrane method deep treatment facility 12 until it is transported to the reuse water tank / monitoring discharge tank 13. The bottom sludge discharge ports of the high-efficiency anaerobic reactor 3, the internal return sedimentation tank 4, the high-multiplication biological treatment tank 6, the second sedimentation tank 7 and the high-density clarification tank 10 are all connected to the sludge tank 14, and a sludge dewatering device 15 is provided on the rear end outlet pipeline of the sludge tank 14.

[0037] In this embodiment, the interior of the homogeneous hydrolysis acidification tank 2 is provided with baffles and guide plates which are staggered up and down, and a liquid-solid ejector is provided at the bottom, so that the sewage entering can fully contact and react with the mud-water mixture in the hydrolysis acidification tank, thereby solving the problems of uneven mixing, short-circuiting and serious sludge deposition. Under the control of high sludge carrier, pH 6.5-7.5 and water temperature 25-35, the treatment efficiency is greatly improved, and the biodegradability is improved.

[0038] In this embodiment, a proprietary radiation dot matrix water distribution device and a three-phase separation device are provided in the high-efficiency anaerobic reactor 3. A convex spherical hydraulic speed increasing mechanism is provided on the top of the radiation dot matrix water distribution device (CN 215161395 U), and multiple radiation branch pipe interfaces are provided around the radiation dot matrix water distribution device. Each radiation branch pipe interface is connected to a radiation branch pipe, and each radiation branch pipe is provided with a water distribution point hole. Figure 2 The three-phase separation device adopts a multi-type layout, a triangular angle (proprietary and not explained), and the triangular separator is made of FRP. The surface smoothness is specially treated, non-sticky, low surface friction coefficient, and smooth sludge settling on the surface. The three-phase separation device in the tank is arranged in a triangular overlapping manner, and the separation area is designed according to the processing scale. The three-phase separation device efficiently separates the gas, liquid, and solid in the ascending flow. When the gas, liquid, and solid ascend to the three-phase separation guide device, the gas phase is cut through the three-phase separation guide device and rises to the methane collection hood; the liquid phase rises to the sedimentation separation area through the gap between the three-phase separation guide device and the methane collection hood, and the supernatant flows to the water collection weir; the solid phase settles to the guide plate of the three-phase separation guide device after the sedimentation separation area, and then continues to settle to the sludge layer of the anaerobic reactor. The methane outlet of the high-efficiency anaerobic reactor is connected to the methane gas storage tank after hydrogen sulfide is removed through the water seal desulfurization device.

[0039] In the high-efficiency anaerobic reactor, the reactor water distribution and three-phase separator are key equipment. The water distribution device adopts a proprietary equipment radiation dot matrix water distribution device to reduce the hydraulic flow velocity resistance and enhance the diffusion velocity of the radiation distribution device to the radiation branch pipe. The operating conditions of the anaerobic reactor are controlled as follows: high sludge carrier 1.5-2.0 grams, temperature at 32-38°C, PH controlled at 7.0-7.5, the treatment efficiency is greatly improved, the removal efficiency is ≥90%, which is 15% higher than the first generation. After separation by the three-phase separation device, the methane gas enters the water seal tank for pressure stabilization and discharge to the gas storage tank. Since the methane gas contains a certain amount of hydrogen sulfide, hydrogen sulfide is a toxic and harmful gas, which causes certain harm and pollution to people and the ambient air. By adding alkali to the water in the water seal tank, the methane gas removes hydrogen sulfide through alkali washing, which solves the problem of hydrogen sulfide in the methane gas causing harm to people and pollution to the ambient air.

[0040] In this embodiment, the high-multiplication biological treatment pool 6 is equipped with a proprietary device, a disc-type jet aeration device, under extremely high high-biological carriers. The high-multiplication biological treatment operation conditions are controlled as follows: high sludge carrier 0.6-1.0 grams, temperature at 25-38°C, and pH controlled at 7.0-7.5. At this time, the oxygen aerator can be filled with oxygen and can meet the working conditions without damage. Only the disc-type jet aeration device can meet the high oxygenation efficiency, never fail and high treatment efficiency under extremely high high-biological carriers and high-concentration sewage, and is maintenance-free, with a service life of up to 15 years. The wastewater is biochemically treated in the high-multiplication biological treatment pool, and the COD is ≤70 after removal, and most of the organic pollution is effectively removed.

[0041] In this embodiment, the aerated biological filter is initially used for deep treatment after the secondary treatment of sewage, but conventional aeration tanks are prone to blockage, short flow, uneven aeration, low oxygenation efficiency and other problems, resulting in the aerated biological filter failing to achieve the expected treatment effect. A gas-liquid mixed jet aerated biological filter is used as the core treatment unit. It effectively solves the problems of easy blockage, short flow, uneven aeration, low oxygenation efficiency and other problems of traditional biological filters, applies automatic operation control mode, has less maintenance workload, low operating costs, and stable effluent.

[0042] In this embodiment, in view of the fine particle size and light specific gravity of the suspended matter in the filter effluent, a multi-stage combined reaction stirring and coagulation device is used, and the sewage + reagent is stirred and coagulated and the return sludge + reagent is stirred and coagulated to form a large mass of heavy matter, and then enters the high-density sedimentation device guide tube and the guide reflection device to the clarification area for clarification, and the bottom sludge is scraped into the sludge thickening bucket by the clarification bottom scraper. After the sludge is concentrated, it is lifted and returned to the multi-stage reaction stirring and coagulation device for recycling. The high-density clarification tank 10 adaptation structure is adopted to solve the influence of turbulence, strengthen the flocculation and clarification effect, greatly improve the separation effect and device processing efficiency, and reduce the operating cost at the same time.

[0043] In this embodiment, the double membrane method deep processing facility, ultrafiltration membrane separation technology, is a process driven by the tangential flow of the fluid and pressure, and separates particles according to the molecular weight, with the pressure difference as the driving force, the raw material also flows on it, the solvent and small solute particles in the raw material liquid pass through the membrane from the high-pressure feed liquid side to the low-pressure side, and the liquid that can pass through the membrane as the permeate is generally called the filtrate or permeate, and the substances that cannot pass through the membrane will be retained by the ultrafiltration membrane and slowly concentrated in the discharge liquid to complete the process of separation, purification, classification and concentration of the solution; the RO device is the main desalination device of this system, and reverse osmosis is to make pure water pass through the reverse osmosis membrane under pressure, and the soluble inorganic salts, organic matter, colloids, microorganisms and other impurities in the raw water are retained and discharged with a small amount of concentrated water, thereby obtaining desalted water to meet the requirements of recycling.

[0044] In this embodiment, an accident sewage tank is arranged at the front end of the high-concentration sewage regulating tank; the air source required by the entire system is provided by a centrifugal blower 16 .

[0045] In summary, this system treats sewage of different properties separately and diverts it. High-concentration sewage from desizing and sizing is collected separately and pumped to a homogenous hydrolysis acidification tank and a high-efficiency anaerobic reactor (internal reflux sedimentation tank) for treatment. The effluent from the sedimentation tank is connected to a comprehensive sewage regulating tank. Dyeing wastewater, ground washing and domestic sewage are discharged to the screen well-microfiltration screen-comprehensive sewage regulating tank. After being treated by different pretreatment processes, they enter the comprehensive sewage regulating tank and then undergo deep treatment in a high-multiplication biological treatment tank-sedimentation tank-intermediate water tank-gas-liquid jet biological aeration filter-high-density clarification tank-double membrane deep treatment facility to comprehensively eliminate pollutants, so that the effluent quality meets the production and reuse water quality standards and can be recycled.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the utility model in any form, and all technical solutions obtained by equivalent replacement and other methods fall within the protection scope of the utility model. The parts not involved in the utility model are the same as the existing technology or can be implemented by the existing technology.

Claims

1. A system for treating high-concentration desizing, sizing and dyeing wastewater, characterized in that: It includes a high-concentration sewage collection tank, a homogeneous hydrolysis acidification tank, a high-efficiency anaerobic reactor, an internal reflow sedimentation tank, a comprehensive sewage regulating tank, a high-multiplication biological treatment tank, a secondary sedimentation tank, a gas-liquid jet biological aeration filter, a high-density clarification tank, a double-membrane deep treatment facility and a monitoring discharge tank. The inlet of the high-concentration sewage collection tank is connected to the high-concentration desizing and sizing sewage, and the outlet is connected to the inlet of the homogeneous hydrolysis acidification tank through a pipeline. The outlet of the homogeneous hydrolysis acidification tank is connected to the high-efficiency anaerobic reactor and the internal reflow sedimentation tank in sequence through a pipeline. The outlet of the internal reflow sedimentation tank is connected to the comprehensive sewage regulating tank through a pipeline. The water inlet of the comprehensive sewage regulating tank is connected to dyeing wastewater. The outlet of the comprehensive sewage regulating tank is connected to the high-multiplication biological treatment tank, the secondary sedimentation tank, the gas-liquid jet biological aeration filter, the high-density clarification tank, the double-membrane deep treatment facility and the monitoring discharge tank in sequence through a pipeline.

2. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: Water pumps are provided between the high-concentration sewage collection tank and the homogeneous hydrolysis acidification tank, between the homogeneous hydrolysis acidification tank and the high-efficiency anaerobic reactor, and between the comprehensive sewage regulating tank and the high-multiplication biological treatment tank, and the water body in the previous stage is lifted to the high-multiplication biological treatment tank by the water pumps.

3. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: A first intermediate water tank is arranged between the secondary sedimentation tank and the gas-liquid jet biological aeration filter tank, and a water pump is arranged between the first intermediate water tank and the gas-liquid jet biological aeration filter tank.

4. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: A second intermediate water tank is provided between the high-density clarification tank and the double-membrane deep treatment facility, and a water pump is provided between the second intermediate water tank and the double-membrane deep treatment facility.

5. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: The bottom sludge discharge ports of the high-efficiency anaerobic reactor, the internal reflow sedimentation tank, the high-multiplication biological treatment tank, the secondary sedimentation tank and the high-density clarification tank are all connected to the sludge tank, and a sludge dewatering device is arranged on the rear end outlet pipeline of the sludge tank.

6. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: A grid well is provided at the sewage end of the comprehensive sewage regulating tank, and a microfiltration grid is provided in the grid well.

7. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1 or 6, characterized in that: The sewage end of the comprehensive sewage regulating tank is also connected to ground flushing and domestic sewage.

8. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: The air source required for the entire system is provided by a centrifugal blower.

9. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: The homogeneous hydrolysis zone is provided with baffles and guide plates staggered up and down inside, and a liquid-solid ejector is provided at the bottom.

10. A system for treating high-concentration desizing, sizing and dyeing wastewater according to claim 1, characterized in that: The high-efficiency anaerobic reactor is provided with a radiation dot matrix water distribution device and a three-phase separation device. The three-phase separation device adopts a triangular separator arranged in a multi-type manner. The triangular separator is made of FRP and has a smooth surface. A methane collection hood is provided above the three-phase separation device. The three-phase separation device efficiently separates the ascending gas, liquid and solid. The methane outlet of the high-efficiency anaerobic reactor is connected to a methane gas storage tank after hydrogen sulfide is removed through a water seal desulfurization device.

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